2013-05-30 03:06:29

by Kuppuswamy, Sathyanarayanan

Subject: [PATCH v1 00/13] mrst refactoring patches

As Intel rolling out more SoC's after Moorestown, we need to re-structure
the code in a way that is backward compatible and easy to expand.This
patch set implements a flexible way to support multiple boards and devices.

Patch 1 - 5 fixes some indentation issue, compiler warnings and renames.
Patch 6 - 13 refactors mrst code.

Andy Shevchenko (2):
sfi: fix compiler warnings
gpiolib: append SFI helpers for GPIO API

Sathyanarayanan Kuppuswamy (11):
mrst: Fixed printk/pr_* related issues
mrst: Fixed indentation issues
mrst: Fixed checkpatch warnings
intel_mid: Renamed *mrst* to *intel_mid*
intel_mid: Renamed *mrst* to *intel_mid*
intel_mid: Refactored sfi_parse_devs() function
intel_mid: Added custom device_handler support
intel_mid: Added custom handler for ipc devices
intel_mid: Moved board related code to a new file
intel_mid: Moved SFI related code to intel_mid_sfi.c
x86: mrst: move to generic SFI GPIO API

Documentation/kernel-parameters.txt | 6 +-
arch/x86/include/asm/{mrst.h => intel-mid.h} | 62 +-
.../include/asm/{mrst-vrtc.h => intel_mid_vrtc.h} | 4 +-
arch/x86/include/asm/setup.h | 4 +-
arch/x86/include/uapi/asm/bootparam.h | 2 +-
arch/x86/kernel/apb_timer.c | 10 +-
arch/x86/kernel/early_printk.c | 2 +-
arch/x86/kernel/head32.c | 4 +-
arch/x86/kernel/rtc.c | 4 +-
arch/x86/pci/Makefile | 2 +-
arch/x86/pci/{mrst.c => intel_mid_pci.c} | 22 +-
arch/x86/platform/Makefile | 2 +-
arch/x86/platform/intel-mid/Makefile | 9 +
arch/x86/platform/intel-mid/board.c | 109 ++
arch/x86/platform/intel-mid/device_libs/Makefile | 21 +
.../intel-mid/device_libs/platform_emc1403.c | 33 +
.../intel-mid/device_libs/platform_emc1403.h | 16 +
.../intel-mid/device_libs/platform_gpio_keys.c | 82 ++
.../intel-mid/device_libs/platform_gpio_keys.h | 16 +
.../platform/intel-mid/device_libs/platform_ipc.c | 59 ++
.../platform/intel-mid/device_libs/platform_ipc.h | 17 +
.../intel-mid/device_libs/platform_lis331.c | 32 +
.../intel-mid/device_libs/platform_lis331.h | 16 +
.../intel-mid/device_libs/platform_max3111.c | 28 +
.../intel-mid/device_libs/platform_max3111.h | 16 +
.../intel-mid/device_libs/platform_max7315.c | 62 ++
.../intel-mid/device_libs/platform_max7315.h | 19 +
.../intel-mid/device_libs/platform_mpu3050.c | 28 +
.../intel-mid/device_libs/platform_mpu3050.h | 16 +
.../platform/intel-mid/device_libs/platform_msic.c | 87 ++
.../platform/intel-mid/device_libs/platform_msic.h | 19 +
.../intel-mid/device_libs/platform_msic_audio.c | 36 +
.../intel-mid/device_libs/platform_msic_audio.h | 16 +
.../intel-mid/device_libs/platform_msic_battery.c | 26 +
.../intel-mid/device_libs/platform_msic_battery.h | 17 +
.../intel-mid/device_libs/platform_msic_gpio.c | 37 +
.../intel-mid/device_libs/platform_msic_gpio.h | 16 +
.../intel-mid/device_libs/platform_msic_ocd.c | 39 +
.../intel-mid/device_libs/platform_msic_ocd.h | 16 +
.../device_libs/platform_msic_power_btn.c | 25 +
.../device_libs/platform_msic_power_btn.h | 17 +
.../intel-mid/device_libs/platform_msic_thermal.c | 26 +
.../intel-mid/device_libs/platform_msic_thermal.h | 17 +
.../intel-mid/device_libs/platform_pmic_gpio.c | 36 +
.../intel-mid/device_libs/platform_pmic_gpio.h | 16 +
.../intel-mid/device_libs/platform_tc35876x.c | 29 +
.../intel-mid/device_libs/platform_tc35876x.h | 16 +
.../intel-mid/device_libs/platform_tca6416.c | 45 +
.../intel-mid/device_libs/platform_tca6416.h | 20 +
.../early_printk_intel_mid.c} | 11 +-
arch/x86/platform/intel-mid/intel-mid.c | 213 ++++
arch/x86/platform/intel-mid/intel_mid_sfi.c | 434 ++++++++
.../{mrst/vrtc.c => intel-mid/intel_mid_vrtc.c} | 21 +-
arch/x86/platform/intel-mid/intel_mid_weak_decls.h | 15 +
arch/x86/platform/mrst/Makefile | 3 -
arch/x86/platform/mrst/mrst.c | 1052 --------------------
drivers/gpio/Kconfig | 4 +
drivers/gpio/Makefile | 1 +
drivers/gpio/gpiolib-sfi.c | 76 ++
drivers/gpu/drm/gma500/mdfld_dsi_output.h | 2 +-
drivers/gpu/drm/gma500/oaktrail_device.c | 2 +-
drivers/gpu/drm/gma500/oaktrail_lvds.c | 2 +-
drivers/platform/x86/intel_scu_ipc.c | 4 +-
drivers/rtc/rtc-mrst.c | 4 +-
drivers/sfi/sfi_core.c | 11 +-
drivers/watchdog/intel_scu_watchdog.c | 4 +-
include/linux/sfi_gpio.h | 27 +
67 files changed, 2015 insertions(+), 1130 deletions(-)
rename arch/x86/include/asm/{mrst.h => intel-mid.h} (50%)
rename arch/x86/include/asm/{mrst-vrtc.h => intel_mid_vrtc.h} (81%)
rename arch/x86/pci/{mrst.c => intel_mid_pci.c} (95%)
create mode 100644 arch/x86/platform/intel-mid/Makefile
create mode 100644 arch/x86/platform/intel-mid/board.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/Makefile
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_emc1403.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_emc1403.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_gpio_keys.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_gpio_keys.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_ipc.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_ipc.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_lis331.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_lis331.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_max3111.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_max3111.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_max7315.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_max7315.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_mpu3050.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_mpu3050.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic_audio.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic_audio.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic_battery.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic_battery.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic_gpio.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic_gpio.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic_ocd.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic_ocd.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic_power_btn.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic_power_btn.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic_thermal.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic_thermal.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_pmic_gpio.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_pmic_gpio.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_tc35876x.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_tc35876x.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_tca6416.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_tca6416.h
rename arch/x86/platform/{mrst/early_printk_mrst.c => intel-mid/early_printk_intel_mid.c} (97%)
create mode 100644 arch/x86/platform/intel-mid/intel-mid.c
create mode 100644 arch/x86/platform/intel-mid/intel_mid_sfi.c
rename arch/x86/platform/{mrst/vrtc.c => intel-mid/intel_mid_vrtc.c} (90%)
create mode 100644 arch/x86/platform/intel-mid/intel_mid_weak_decls.h
delete mode 100644 arch/x86/platform/mrst/Makefile
delete mode 100644 arch/x86/platform/mrst/mrst.c
create mode 100644 drivers/gpio/gpiolib-sfi.c
create mode 100644 include/linux/sfi_gpio.h

--
1.7.9.5

2013-05-30 03:03:49

by Kuppuswamy, Sathyanarayanan

Subject: [PATCH v1 01/13] mrst: Fixed printk/pr_* related issues

Fixed printk and pr_* related issues in mrst related files.

Change-Id: I7dafe04f1cd6a0ee2c97672b98441ade5b2000a7
Signed-off-by: Sathyanarayanan Kuppuswamy <[email protected]>
---
arch/x86/pci/mrst.c | 2 +-
arch/x86/platform/mrst/early_printk_mrst.c | 2 +-
arch/x86/platform/mrst/mrst.c | 2 +-
arch/x86/platform/mrst/vrtc.c | 5 ++---
4 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/arch/x86/pci/mrst.c b/arch/x86/pci/mrst.c
index 6eb18c4..a08cf1b 100644
--- a/arch/x86/pci/mrst.c
+++ b/arch/x86/pci/mrst.c
@@ -235,7 +235,7 @@ struct pci_ops pci_mrst_ops = {
*/
int __init pci_mrst_init(void)
{
- printk(KERN_INFO "Intel MID platform detected, using MID PCI ops\n");
+ pr_info("Intel MID platform detected, using MID PCI ops\n");
pci_mmcfg_late_init();
pcibios_enable_irq = mrst_pci_irq_enable;
pci_root_ops = pci_mrst_ops;
diff --git a/arch/x86/platform/mrst/early_printk_mrst.c b/arch/x86/platform/mrst/early_printk_mrst.c
index 028454f..95880f7 100644
--- a/arch/x86/platform/mrst/early_printk_mrst.c
+++ b/arch/x86/platform/mrst/early_printk_mrst.c
@@ -213,7 +213,7 @@ static void early_mrst_spi_putc(char c)
}

if (!timeout)
- pr_warning("MRST earlycon: timed out\n");
+ pr_warn("MRST earlycon: timed out\n");
else
max3110_write_data(c);
}
diff --git a/arch/x86/platform/mrst/mrst.c b/arch/x86/platform/mrst/mrst.c
index a0a0a43..fbfbe36 100644
--- a/arch/x86/platform/mrst/mrst.c
+++ b/arch/x86/platform/mrst/mrst.c
@@ -328,7 +328,7 @@ static inline int __init setup_x86_mrst_timer(char *arg)
else if (strcmp("lapic_and_apbt", arg) == 0)
mrst_timer_options = MRST_TIMER_LAPIC_APBT;
else {
- pr_warning("X86 MRST timer option %s not recognised"
+ pr_warn("X86 MRST timer option %s not recognised"
" use x86_mrst_timer=apbt_only or lapic_and_apbt\n",
arg);
return -EINVAL;
diff --git a/arch/x86/platform/mrst/vrtc.c b/arch/x86/platform/mrst/vrtc.c
index d62b0a3..d735deb 100644
--- a/arch/x86/platform/mrst/vrtc.c
+++ b/arch/x86/platform/mrst/vrtc.c
@@ -79,7 +79,7 @@ unsigned long vrtc_get_time(void)
/* vRTC YEAR reg contains the offset to 1972 */
year += 1972;

- printk(KERN_INFO "vRTC: sec: %d min: %d hour: %d day: %d "
+ pr_info("vRTC: sec: %d min: %d hour: %d day: %d "
"mon: %d year: %d\n", sec, min, hour, mday, mon, year);

return mktime(year, mon, mday, hour, min, sec);
@@ -108,8 +108,7 @@ int vrtc_set_mmss(unsigned long nowtime)
vrtc_cmos_write(tm.tm_sec, RTC_SECONDS);
spin_unlock_irqrestore(&rtc_lock, flags);
} else {
- printk(KERN_ERR
- "%s: Invalid vRTC value: write of %lx to vRTC failed\n",
+ pr_err("%s: Invalid vRTC value: write of %lx to vRTC failed\n",
__FUNCTION__, nowtime);
retval = -EINVAL;
}
--
1.7.9.5

2013-05-30 03:04:00

by Kuppuswamy, Sathyanarayanan

Subject: [PATCH v1 07/13] intel_mid: Added custom device_handler support

This patch provides a means to add custom handler for
SFI devices. If you set device_handler as NULL in
device_id table standard SFI device handler will be used.
If its not NULL custom handler will be called.

Change-Id: I294371004b2c4b6bb0713fd6f5ea94ab0fc2df52
Signed-off-by: Sathyanarayanan Kuppuswamy <[email protected]>
---
arch/x86/platform/intel-mid/intel-mid.c | 75 +++++++++++++++++--------------
1 file changed, 42 insertions(+), 33 deletions(-)

diff --git a/arch/x86/platform/intel-mid/intel-mid.c b/arch/x86/platform/intel-mid/intel-mid.c
index ef94c7d..f3abd75 100644
--- a/arch/x86/platform/intel-mid/intel-mid.c
+++ b/arch/x86/platform/intel-mid/intel-mid.c
@@ -396,6 +396,9 @@ struct devs_id {
u8 type;
u8 delay;
void *(*get_platform_data)(void *info);
+ /* Custom handler for devices */
+ void (*device_handler)(struct sfi_device_table_entry *pentry,
+ struct devs_id *dev);
};

/* the offset for the mapping of global gpio pin to irq */
@@ -690,27 +693,29 @@ static void *tc35876x_platform_data(void *data)
}

static const struct devs_id __initconst device_ids[] = {
- {"bma023", SFI_DEV_TYPE_I2C, 1, &no_platform_data},
- {"pmic_gpio", SFI_DEV_TYPE_SPI, 1, &pmic_gpio_platform_data},
- {"pmic_gpio", SFI_DEV_TYPE_IPC, 1, &pmic_gpio_platform_data},
- {"spi_max3111", SFI_DEV_TYPE_SPI, 0, &max3111_platform_data},
- {"i2c_max7315", SFI_DEV_TYPE_I2C, 1, &max7315_platform_data},
- {"i2c_max7315_2", SFI_DEV_TYPE_I2C, 1, &max7315_platform_data},
- {"tca6416", SFI_DEV_TYPE_I2C, 1, &tca6416_platform_data},
- {"emc1403", SFI_DEV_TYPE_I2C, 1, &emc1403_platform_data},
- {"i2c_accel", SFI_DEV_TYPE_I2C, 0, &lis331dl_platform_data},
- {"pmic_audio", SFI_DEV_TYPE_IPC, 1, &no_platform_data},
- {"mpu3050", SFI_DEV_TYPE_I2C, 1, &mpu3050_platform_data},
- {"i2c_disp_brig", SFI_DEV_TYPE_I2C, 0, &tc35876x_platform_data},
+ {"bma023", SFI_DEV_TYPE_I2C, 1, &no_platform_data, NULL},
+ {"pmic_gpio", SFI_DEV_TYPE_SPI, 1, &pmic_gpio_platform_data, NULL},
+ {"pmic_gpio", SFI_DEV_TYPE_IPC, 1, &pmic_gpio_platform_data, NULL},
+ {"spi_max3111", SFI_DEV_TYPE_SPI, 0, &max3111_platform_data, NULL},
+ {"i2c_max7315", SFI_DEV_TYPE_I2C, 1, &max7315_platform_data, NULL},
+ {"i2c_max7315_2", SFI_DEV_TYPE_I2C, 1, &max7315_platform_data, NULL},
+ {"tca6416", SFI_DEV_TYPE_I2C, 1, &tca6416_platform_data, NULL},
+ {"emc1403", SFI_DEV_TYPE_I2C, 1, &emc1403_platform_data, NULL},
+ {"i2c_accel", SFI_DEV_TYPE_I2C, 0, &lis331dl_platform_data, NULL},
+ {"pmic_audio", SFI_DEV_TYPE_IPC, 1, &no_platform_data, NULL},
+ {"mpu3050", SFI_DEV_TYPE_I2C, 1, &mpu3050_platform_data, NULL},
+ {"i2c_disp_brig", SFI_DEV_TYPE_I2C, 0, &tc35876x_platform_data, NULL},

/* MSIC subdevices */
- {"msic_battery", SFI_DEV_TYPE_IPC, 1, &msic_battery_platform_data},
- {"msic_gpio", SFI_DEV_TYPE_IPC, 1, &msic_gpio_platform_data},
- {"msic_audio", SFI_DEV_TYPE_IPC, 1, &msic_audio_platform_data},
- {"msic_power_btn", SFI_DEV_TYPE_IPC, 1, &msic_power_btn_platform_data},
- {"msic_ocd", SFI_DEV_TYPE_IPC, 1, &msic_ocd_platform_data},
- {"msic_thermal", SFI_DEV_TYPE_IPC, 1, &msic_thermal_platform_data},
-
+ {"msic_battery", SFI_DEV_TYPE_IPC, 1, &msic_battery_platform_data,
+ NULL},
+ {"msic_gpio", SFI_DEV_TYPE_IPC, 1, &msic_gpio_platform_data, NULL},
+ {"msic_audio", SFI_DEV_TYPE_IPC, 1, &msic_audio_platform_data, NULL},
+ {"msic_power_btn", SFI_DEV_TYPE_IPC, 1, &msic_power_btn_platform_data,
+ NULL},
+ {"msic_ocd", SFI_DEV_TYPE_IPC, 1, &msic_ocd_platform_data, NULL},
+ {"msic_thermal", SFI_DEV_TYPE_IPC, 1, &msic_thermal_platform_data,
+ NULL},
{},
};

@@ -965,20 +970,24 @@ static int __init sfi_parse_devs(struct sfi_table_header *table)
if ((dev == NULL) || (dev->get_platform_data == NULL))
continue;

- switch (pentry->type) {
- case SFI_DEV_TYPE_IPC:
- sfi_handle_ipc_dev(pentry, dev);
- break;
- case SFI_DEV_TYPE_SPI:
- sfi_handle_spi_dev(pentry, dev);
- break;
- case SFI_DEV_TYPE_I2C:
- sfi_handle_i2c_dev(pentry, dev);
- break;
- case SFI_DEV_TYPE_UART:
- case SFI_DEV_TYPE_HSI:
- default:
- break;
+ if (dev->device_handler) {
+ dev->device_handler(pentry, dev);
+ } else {
+ switch (pentry->type) {
+ case SFI_DEV_TYPE_IPC:
+ sfi_handle_ipc_dev(pentry, dev);
+ break;
+ case SFI_DEV_TYPE_SPI:
+ sfi_handle_spi_dev(pentry, dev);
+ break;
+ case SFI_DEV_TYPE_I2C:
+ sfi_handle_i2c_dev(pentry, dev);
+ break;
+ case SFI_DEV_TYPE_UART:
+ case SFI_DEV_TYPE_HSI:
+ default:
+ break;
+ }
}
}
return 0;
--
1.7.9.5

2013-05-30 03:04:08

by Kuppuswamy, Sathyanarayanan

Subject: [PATCH v1 11/13] sfi: fix compiler warnings

From: Andy Shevchenko <[email protected]>

drivers/sfi/sfi_core.c:164:26: warning: no previous prototype for ‘sfi_map_table’ [-Wmissing-prototypes]
drivers/sfi/sfi_core.c:192:6: warning: no previous prototype for ‘sfi_unmap_table’ [-Wmissing-prototypes]

Change-Id: I2c2053dcd364a21c6b86016b28f2fb4961ccf43e
Signed-off-by: Andy Shevchenko <[email protected]>
---
drivers/sfi/sfi_core.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/sfi/sfi_core.c b/drivers/sfi/sfi_core.c
index 1e824fb..296db7a 100644
--- a/drivers/sfi/sfi_core.c
+++ b/drivers/sfi/sfi_core.c
@@ -161,7 +161,7 @@ static int sfi_verify_table(struct sfi_table_header *table)
* Check for common case that we can re-use mapping to SYST,
* which requires syst_pa, syst_va to be initialized.
*/
-struct sfi_table_header *sfi_map_table(u64 pa)
+static struct sfi_table_header *sfi_map_table(u64 pa)
{
struct sfi_table_header *th;
u32 length;
@@ -189,7 +189,7 @@ struct sfi_table_header *sfi_map_table(u64 pa)
* Undoes effect of sfi_map_table() by unmapping table
* if it did not completely fit on same page as SYST.
*/
-void sfi_unmap_table(struct sfi_table_header *th)
+static void sfi_unmap_table(struct sfi_table_header *th)
{
if (!TABLE_ON_PAGE(syst_va, th, th->len))
sfi_unmap_memory(th, TABLE_ON_PAGE(th, th, th->len) ?
--
1.7.9.5

2013-05-30 03:04:29

by Kuppuswamy, Sathyanarayanan

Subject: [PATCH v1 13/13] x86: mrst: move to generic SFI GPIO API

Let's use the common SFI helpers for GPIO API.

Change-Id: I7aba6e61af7df3e34ffc4dfe161ab6ea2d723691
Signed-off-by: Andy Shevchenko <[email protected]>
Signed-off-by: Sathyanarayanan Kuppuswamy <[email protected]>
---
arch/x86/include/asm/intel-mid.h | 2 +-
.../intel-mid/device_libs/platform_emc1403.c | 4 +-
.../intel-mid/device_libs/platform_gpio_keys.c | 2 +-
.../intel-mid/device_libs/platform_lis331.c | 4 +-
.../intel-mid/device_libs/platform_max3111.c | 2 +-
.../intel-mid/device_libs/platform_max7315.c | 4 +-
.../intel-mid/device_libs/platform_mpu3050.c | 2 +-
.../intel-mid/device_libs/platform_msic_gpio.c | 2 +-
.../intel-mid/device_libs/platform_msic_ocd.c | 2 +-
.../intel-mid/device_libs/platform_pmic_gpio.c | 2 +-
.../intel-mid/device_libs/platform_tc35876x.c | 6 +--
.../intel-mid/device_libs/platform_tca6416.c | 4 +-
arch/x86/platform/intel-mid/intel_mid_sfi.c | 51 --------------------
13 files changed, 18 insertions(+), 69 deletions(-)

diff --git a/arch/x86/include/asm/intel-mid.h b/arch/x86/include/asm/intel-mid.h
index 358e0d2..e66555d 100644
--- a/arch/x86/include/asm/intel-mid.h
+++ b/arch/x86/include/asm/intel-mid.h
@@ -12,10 +12,10 @@
#define _ASM_X86_INTEL_MID_H

#include <linux/sfi.h>
+#include <linux/sfi_gpio.h>
#include <linux/platform_device.h>

extern int intel_mid_pci_init(void);
-extern int get_gpio_by_name(const char *name);
extern void intel_scu_device_register(struct platform_device *pdev);
extern int __init sfi_parse_mrtc(struct sfi_table_header *table);
extern int __init sfi_parse_mtmr(struct sfi_table_header *table);
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_emc1403.c b/arch/x86/platform/intel-mid/device_libs/platform_emc1403.c
index 301e414..14812625 100644
--- a/arch/x86/platform/intel-mid/device_libs/platform_emc1403.c
+++ b/arch/x86/platform/intel-mid/device_libs/platform_emc1403.c
@@ -20,8 +20,8 @@ void __init *emc1403_platform_data(void *info)
{
static short intr2nd_pdata;
struct i2c_board_info *i2c_info = info;
- int intr = get_gpio_by_name("thermal_int");
- int intr2nd = get_gpio_by_name("thermal_alert");
+ int intr = sfi_get_gpio_by_name("thermal_int");
+ int intr2nd = sfi_get_gpio_by_name("thermal_alert");

if (intr == -1 || intr2nd == -1)
return NULL;
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_gpio_keys.c b/arch/x86/platform/intel-mid/device_libs/platform_gpio_keys.c
index 4cae400..859829c 100644
--- a/arch/x86/platform/intel-mid/device_libs/platform_gpio_keys.c
+++ b/arch/x86/platform/intel-mid/device_libs/platform_gpio_keys.c
@@ -62,7 +62,7 @@ static int __init pb_keys_init(void)

num = sizeof(gpio_button) / sizeof(struct gpio_keys_button);
for (i = 0; i < num; i++) {
- gb[i].gpio = get_gpio_by_name(gb[i].desc);
+ gb[i].gpio = sfi_get_gpio_by_name(gb[i].desc);
pr_debug("info[%2d]: name = %s, gpio = %d\n", i, gb[i].desc,
gb[i].gpio);
if (gb[i].gpio == -1)
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_lis331.c b/arch/x86/platform/intel-mid/device_libs/platform_lis331.c
index db96e30..770fdd4 100644
--- a/arch/x86/platform/intel-mid/device_libs/platform_lis331.c
+++ b/arch/x86/platform/intel-mid/device_libs/platform_lis331.c
@@ -19,8 +19,8 @@ void __init *lis331dl_platform_data(void *info)
{
static short intr2nd_pdata;
struct i2c_board_info *i2c_info = info;
- int intr = get_gpio_by_name("accel_int");
- int intr2nd = get_gpio_by_name("accel_2");
+ int intr = sfi_get_gpio_by_name("accel_int");
+ int intr2nd = sfi_get_gpio_by_name("accel_2");

if (intr == -1 || intr2nd == -1)
return NULL;
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_max3111.c b/arch/x86/platform/intel-mid/device_libs/platform_max3111.c
index 1fdc259..7466ba7 100644
--- a/arch/x86/platform/intel-mid/device_libs/platform_max3111.c
+++ b/arch/x86/platform/intel-mid/device_libs/platform_max3111.c
@@ -18,7 +18,7 @@
void __init *max3111_platform_data(void *info)
{
struct spi_board_info *spi_info = info;
- int intr = get_gpio_by_name("max3111_int");
+ int intr = sfi_get_gpio_by_name("max3111_int");

spi_info->mode = SPI_MODE_0;
if (intr == -1)
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_max7315.c b/arch/x86/platform/intel-mid/device_libs/platform_max7315.c
index 1c10cb4..30055e6 100644
--- a/arch/x86/platform/intel-mid/device_libs/platform_max7315.c
+++ b/arch/x86/platform/intel-mid/device_libs/platform_max7315.c
@@ -45,8 +45,8 @@ void __init *max7315_platform_data(void *info)
strcpy(intr_pin_name, "max7315_int");
}

- gpio_base = get_gpio_by_name(base_pin_name);
- intr = get_gpio_by_name(intr_pin_name);
+ gpio_base = sfi_get_gpio_by_name(base_pin_name);
+ intr = sfi_get_gpio_by_name(intr_pin_name);

if (gpio_base == -1)
return NULL;
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_mpu3050.c b/arch/x86/platform/intel-mid/device_libs/platform_mpu3050.c
index 1f91ad3..c29fddc 100644
--- a/arch/x86/platform/intel-mid/device_libs/platform_mpu3050.c
+++ b/arch/x86/platform/intel-mid/device_libs/platform_mpu3050.c
@@ -18,7 +18,7 @@
void *mpu3050_platform_data(void *info)
{
struct i2c_board_info *i2c_info = info;
- int intr = get_gpio_by_name("mpu3050_int");
+ int intr = sfi_get_gpio_by_name("mpu3050_int");

if (intr == -1)
return NULL;
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_msic_gpio.c b/arch/x86/platform/intel-mid/device_libs/platform_msic_gpio.c
index ada9bd1..d892f2e 100644
--- a/arch/x86/platform/intel-mid/device_libs/platform_msic_gpio.c
+++ b/arch/x86/platform/intel-mid/device_libs/platform_msic_gpio.c
@@ -25,7 +25,7 @@ void __init *msic_gpio_platform_data(void *info)
{
static struct intel_msic_gpio_pdata msic_gpio_pdata;

- int gpio = get_gpio_by_name("msic_gpio_base");
+ int gpio = sfi_get_gpio_by_name("msic_gpio_base");

if (gpio < 0)
return NULL;
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_msic_ocd.c b/arch/x86/platform/intel-mid/device_libs/platform_msic_ocd.c
index 18446ca..974a39b 100644
--- a/arch/x86/platform/intel-mid/device_libs/platform_msic_ocd.c
+++ b/arch/x86/platform/intel-mid/device_libs/platform_msic_ocd.c
@@ -26,7 +26,7 @@ void __init *msic_ocd_platform_data(void *info)
static struct intel_msic_ocd_pdata msic_ocd_pdata;
int gpio;

- gpio = get_gpio_by_name("ocd_gpio");
+ gpio = sfi_get_gpio_by_name("ocd_gpio");

if (gpio < 0)
return NULL;
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_pmic_gpio.c b/arch/x86/platform/intel-mid/device_libs/platform_pmic_gpio.c
index f5d3ec8..ed5711a 100644
--- a/arch/x86/platform/intel-mid/device_libs/platform_pmic_gpio.c
+++ b/arch/x86/platform/intel-mid/device_libs/platform_pmic_gpio.c
@@ -23,7 +23,7 @@
void __init *pmic_gpio_platform_data(void *info)
{
static struct intel_pmic_gpio_platform_data pmic_gpio_pdata;
- int gpio_base = get_gpio_by_name("pmic_gpio_base");
+ int gpio_base = sfi_get_gpio_by_name("pmic_gpio_base");

if (gpio_base == -1)
gpio_base = 64;
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_tc35876x.c b/arch/x86/platform/intel-mid/device_libs/platform_tc35876x.c
index dd9ef63..4a6f228 100644
--- a/arch/x86/platform/intel-mid/device_libs/platform_tc35876x.c
+++ b/arch/x86/platform/intel-mid/device_libs/platform_tc35876x.c
@@ -21,9 +21,9 @@ void *tc35876x_platform_data(void *data)
static struct tc35876x_platform_data pdata;

/* gpio pins set to -1 will not be used by the driver */
- pdata.gpio_bridge_reset = get_gpio_by_name("LCMB_RXEN");
- pdata.gpio_panel_bl_en = get_gpio_by_name("6S6P_BL_EN");
- pdata.gpio_panel_vadd = get_gpio_by_name("EN_VREG_LCD_V3P3");
+ pdata.gpio_bridge_reset = sfi_get_gpio_by_name("LCMB_RXEN");
+ pdata.gpio_panel_bl_en = sfi_get_gpio_by_name("6S6P_BL_EN");
+ pdata.gpio_panel_vadd = sfi_get_gpio_by_name("EN_VREG_LCD_V3P3");

return &pdata;
}
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_tca6416.c b/arch/x86/platform/intel-mid/device_libs/platform_tca6416.c
index 79fccdd..1ca2eec 100644
--- a/arch/x86/platform/intel-mid/device_libs/platform_tca6416.c
+++ b/arch/x86/platform/intel-mid/device_libs/platform_tca6416.c
@@ -28,8 +28,8 @@ void *tca6416_platform_data(void *info)
strcpy(base_pin_name, TCA6416_BASE);
strcpy(intr_pin_name, TCA6416_INTR);

- gpio_base = get_gpio_by_name(base_pin_name);
- intr = get_gpio_by_name(intr_pin_name);
+ gpio_base = sfi_get_gpio_by_name(base_pin_name);
+ intr = sfi_get_gpio_by_name(intr_pin_name);

if (gpio_base == -1)
return NULL;
diff --git a/arch/x86/platform/intel-mid/intel_mid_sfi.c b/arch/x86/platform/intel-mid/intel_mid_sfi.c
index c4a10de..a5fc58c 100644
--- a/arch/x86/platform/intel-mid/intel_mid_sfi.c
+++ b/arch/x86/platform/intel-mid/intel_mid_sfi.c
@@ -19,7 +19,6 @@
#include <linux/spi/spi.h>
#include <linux/i2c.h>
#include <linux/skbuff.h>
-#include <linux/gpio.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/platform_device.h>
@@ -52,13 +51,11 @@
static struct platform_device *ipc_devs[MAX_IPCDEVS];
static struct spi_board_info *spi_devs[MAX_SCU_SPI];
static struct i2c_board_info *i2c_devs[MAX_SCU_I2C];
-static struct sfi_gpio_table_entry *gpio_table;
static struct sfi_timer_table_entry sfi_mtimer_array[SFI_MTMR_MAX_NUM];
static int ipc_next_dev;
static int spi_next_dev;
static int i2c_next_dev;
static int i2c_bus[MAX_SCU_I2C];
-static int gpio_num_entry;
static u32 sfi_mtimer_usage[SFI_MTMR_MAX_NUM];
int sfi_mrtc_num;
int sfi_mtimer_num;
@@ -178,53 +175,6 @@ int __init sfi_parse_mrtc(struct sfi_table_header *table)
return 0;
}

-
-/*
- * Parsing GPIO table first, since the DEVS table will need this table
- * to map the pin name to the actual pin.
- */
-static int __init sfi_parse_gpio(struct sfi_table_header *table)
-{
- struct sfi_table_simple *sb;
- struct sfi_gpio_table_entry *pentry;
- int num, i;
-
- if (gpio_table)
- return 0;
- sb = (struct sfi_table_simple *)table;
- num = SFI_GET_NUM_ENTRIES(sb, struct sfi_gpio_table_entry);
- pentry = (struct sfi_gpio_table_entry *)sb->pentry;
-
- gpio_table = kmalloc(num * sizeof(*pentry), GFP_KERNEL);
- if (!gpio_table)
- return -1;
- memcpy(gpio_table, pentry, num * sizeof(*pentry));
- gpio_num_entry = num;
-
- pr_debug("GPIO pin info:\n");
- for (i = 0; i < num; i++, pentry++)
- pr_debug("info[%2d]: controller = %16.16s, pin_name = %16.16s,"
- " pin = %d\n", i,
- pentry->controller_name,
- pentry->pin_name,
- pentry->pin_no);
- return 0;
-}
-
-int get_gpio_by_name(const char *name)
-{
- struct sfi_gpio_table_entry *pentry = gpio_table;
- int i;
-
- if (!pentry)
- return -1;
- for (i = 0; i < gpio_num_entry; i++, pentry++) {
- if (!strncmp(name, pentry->pin_name, SFI_NAME_LEN))
- return pentry->pin_no;
- }
- return -1;
-}
-
void __init intel_scu_device_register(struct platform_device *pdev)
{
if (ipc_next_dev == MAX_IPCDEVS)
@@ -478,7 +428,6 @@ static int __init sfi_parse_devs(struct sfi_table_header *table)

static int __init intel_mid_platform_init(void)
{
- sfi_table_parse(SFI_SIG_GPIO, NULL, NULL, sfi_parse_gpio);
sfi_table_parse(SFI_SIG_DEVS, NULL, NULL, sfi_parse_devs);
return 0;
}
--
1.7.9.5

2013-05-30 03:04:36

by Kuppuswamy, Sathyanarayanan

Subject: [PATCH v1 06/13] intel_mid: Refactored sfi_parse_devs() function

SFI device_id[] table parsing code is duplicated in every SFI
device handler. This patch removes this code duplication, by
adding a seperate function get_device_id() to parse through the
device table. Also this patch moves the SPI, I2C, IPC info code from
sfi_parse_devs() to respective device handlers.

Change-Id: I995bcf6ab872272d4a08a900231ddc5f3110c8a6
Signed-off-by: Sathyanarayanan Kuppuswamy <[email protected]>
---
arch/x86/platform/intel-mid/intel-mid.c | 141 ++++++++++++++++---------------
1 file changed, 71 insertions(+), 70 deletions(-)

diff --git a/arch/x86/platform/intel-mid/intel-mid.c b/arch/x86/platform/intel-mid/intel-mid.c
index 38071c1..ef94c7d 100644
--- a/arch/x86/platform/intel-mid/intel-mid.c
+++ b/arch/x86/platform/intel-mid/intel-mid.c
@@ -831,20 +831,15 @@ static void __init install_irq_resource(struct platform_device *pdev, int irq)
platform_device_add_resources(pdev, &res, 1);
}

-static void __init sfi_handle_ipc_dev(struct sfi_device_table_entry *entry)
+static void __init sfi_handle_ipc_dev(struct sfi_device_table_entry *pentry,
+ struct devs_id *dev)
{
- const struct devs_id *dev = device_ids;
struct platform_device *pdev;
void *pdata = NULL;

- while (dev->name[0]) {
- if (dev->type == SFI_DEV_TYPE_IPC &&
- !strncmp(dev->name, entry->name, SFI_NAME_LEN)) {
- pdata = dev->get_platform_data(entry);
- break;
- }
- dev++;
- }
+ pr_debug("IPC bus, name = %16.16s, irq = 0x%2x\n",
+ pentry->name, pentry->irq);
+ pdata = dev->get_platform_data(pentry);

/*
* On Medfield the platform device creation is handled by the MSIC
@@ -853,68 +848,94 @@ static void __init sfi_handle_ipc_dev(struct sfi_device_table_entry *entry)
if (intel_mid_has_msic())
return;

- pdev = platform_device_alloc(entry->name, 0);
+ pdev = platform_device_alloc(pentry->name, 0);
if (pdev == NULL) {
pr_err("out of memory for SFI platform device '%s'.\n",
- entry->name);
+ pentry->name);
return;
}
- install_irq_resource(pdev, entry->irq);
+ install_irq_resource(pdev, pentry->irq);

pdev->dev.platform_data = pdata;
intel_scu_device_register(pdev);
}

-static void __init sfi_handle_spi_dev(struct spi_board_info *spi_info)
+static void __init sfi_handle_spi_dev(struct sfi_device_table_entry *pentry,
+ struct devs_id *dev)
{
- const struct devs_id *dev = device_ids;
+ struct spi_board_info spi_info;
void *pdata = NULL;

- while (dev->name[0]) {
- if (dev->type == SFI_DEV_TYPE_SPI &&
- !strncmp(dev->name, spi_info->modalias,
- SFI_NAME_LEN)) {
- pdata = dev->get_platform_data(spi_info);
- break;
- }
- dev++;
- }
- spi_info->platform_data = pdata;
+ memset(&spi_info, 0, sizeof(spi_info));
+ strncpy(spi_info.modalias, pentry->name, SFI_NAME_LEN);
+ spi_info.irq = ((pentry->irq == (u8)0xff) ? 0 : pentry->irq);
+ spi_info.bus_num = pentry->host_num;
+ spi_info.chip_select = pentry->addr;
+ spi_info.max_speed_hz = pentry->max_freq;
+ pr_debug("SPI bus=%d, name=%16.16s, irq=0x%2x, max_freq=%d, cs=%d\n",
+ spi_info.bus_num,
+ spi_info.modalias,
+ spi_info.irq,
+ spi_info.max_speed_hz,
+ spi_info.chip_select);
+
+ pdata = dev->get_platform_data(&spi_info);
+
+ spi_info.platform_data = pdata;
if (dev->delay)
- intel_scu_spi_device_register(spi_info);
+ intel_scu_spi_device_register(&spi_info);
else
- spi_register_board_info(spi_info, 1);
+ spi_register_board_info(&spi_info, 1);
}

-static void __init sfi_handle_i2c_dev(int bus, struct i2c_board_info *i2c_info)
+static void __init sfi_handle_i2c_dev(struct sfi_device_table_entry *pentry,
+ struct devs_id *dev)
{
- const struct devs_id *dev = device_ids;
+ struct i2c_board_info i2c_info;
void *pdata = NULL;

+ memset(&i2c_info, 0, sizeof(i2c_info));
+ strncpy(i2c_info.type, pentry->name, SFI_NAME_LEN);
+ i2c_info.irq = ((pentry->irq == (u8)0xff) ? 0 : pentry->irq);
+ i2c_info.addr = pentry->addr;
+ pr_debug("I2C bus = %d, name = %16.16s, irq = 0x%2x, addr = 0x%x\n",
+ pentry->host_num,
+ i2c_info.type,
+ i2c_info.irq,
+ i2c_info.addr);
+ pdata = dev->get_platform_data(&i2c_info);
+ i2c_info.platform_data = pdata;
+
+ if (dev->delay)
+ intel_scu_i2c_device_register(pentry->host_num, &i2c_info);
+ else
+ i2c_register_board_info(pentry->host_num, &i2c_info, 1);
+}
+
+static struct devs_id __init *get_device_id(u8 type, char *name)
+{
+ struct devs_id *dev = device_ids;
+
+ if (device_ids == NULL)
+ return NULL;
+
while (dev->name[0]) {
- if (dev->type == SFI_DEV_TYPE_I2C &&
- !strncmp(dev->name, i2c_info->type, SFI_NAME_LEN)) {
- pdata = dev->get_platform_data(i2c_info);
- break;
+ if (dev->type == type &&
+ !strncmp(dev->name, name, SFI_NAME_LEN)) {
+ return dev;
}
dev++;
}
- i2c_info->platform_data = pdata;

- if (dev->delay)
- intel_scu_i2c_device_register(bus, i2c_info);
- else
- i2c_register_board_info(bus, i2c_info, 1);
+ return NULL;
}

-
static int __init sfi_parse_devs(struct sfi_table_header *table)
{
struct sfi_table_simple *sb;
struct sfi_device_table_entry *pentry;
- struct spi_board_info spi_info;
- struct i2c_board_info i2c_info;
- int num, i, bus;
+ struct devs_id *dev = NULL;
+ int num, i;
int ioapic;
struct io_apic_irq_attr irq_attr;

@@ -939,40 +960,20 @@ static int __init sfi_parse_devs(struct sfi_table_header *table)
} else
irq = 0; /* No irq */

+ dev = get_device_id(pentry->type, pentry->name);
+
+ if ((dev == NULL) || (dev->get_platform_data == NULL))
+ continue;
+
switch (pentry->type) {
case SFI_DEV_TYPE_IPC:
- pr_debug("info[%2d]: IPC bus, name = %16.16s, "
- "irq = 0x%2x\n", i, pentry->name, pentry->irq);
- sfi_handle_ipc_dev(pentry);
+ sfi_handle_ipc_dev(pentry, dev);
break;
case SFI_DEV_TYPE_SPI:
- memset(&spi_info, 0, sizeof(spi_info));
- strncpy(spi_info.modalias, pentry->name, SFI_NAME_LEN);
- spi_info.irq = irq;
- spi_info.bus_num = pentry->host_num;
- spi_info.chip_select = pentry->addr;
- spi_info.max_speed_hz = pentry->max_freq;
- pr_debug("info[%2d]: SPI bus = %d, name = %16.16s, "
- "irq = 0x%2x, max_freq = %d, cs = %d\n", i,
- spi_info.bus_num,
- spi_info.modalias,
- spi_info.irq,
- spi_info.max_speed_hz,
- spi_info.chip_select);
- sfi_handle_spi_dev(&spi_info);
+ sfi_handle_spi_dev(pentry, dev);
break;
case SFI_DEV_TYPE_I2C:
- memset(&i2c_info, 0, sizeof(i2c_info));
- bus = pentry->host_num;
- strncpy(i2c_info.type, pentry->name, SFI_NAME_LEN);
- i2c_info.irq = irq;
- i2c_info.addr = pentry->addr;
- pr_debug("info[%2d]: I2C bus = %d, name = %16.16s, "
- "irq = 0x%2x, addr = 0x%x\n", i, bus,
- i2c_info.type,
- i2c_info.irq,
- i2c_info.addr);
- sfi_handle_i2c_dev(bus, &i2c_info);
+ sfi_handle_i2c_dev(pentry, dev);
break;
case SFI_DEV_TYPE_UART:
case SFI_DEV_TYPE_HSI:
--
1.7.9.5

2013-05-30 03:04:49

by Kuppuswamy, Sathyanarayanan

Subject: [PATCH v1 09/13] intel_mid: Moved board related code to a new file

As Intel rolling out more SoC's after Moorestown, we need to re-structure
the code in a way that is backward compatible and easy to expand.This
patch implements a flexible way to support multiple boards and devices.

This patch does not add any new functional support. It just refactors
the existing code to increase the modularity and decrease the code duplication
for supporting multiple soc's and boards.

Currently intel-mid.c has both board and soc related code in one file. This
patch moves the board related code to new files in the following order.

1. Moved the device specific code to arch/x86/platform/intel-mid/device-libs/
platform_<device>.*. A new device file is added for every supported device.
This code will get conditionally compiled by using corresponding device driver
CONFIG option.

2. Moved the device_ids structure definition to board.c. All board specific code
are added to this file . This will provide better scalability for our code
when supporting multiple boards.

Change-Id: I9a99f8ff98037d2b9d5a1c013fa7c00a9453520d
Signed-off-by: Sathyanarayanan Kuppuswamy <[email protected]>
---
arch/x86/include/asm/intel-mid.h | 12 +
arch/x86/platform/intel-mid/Makefile | 5 +
arch/x86/platform/intel-mid/board.c | 109 +++++
arch/x86/platform/intel-mid/device_libs/Makefile | 21 +
.../intel-mid/device_libs/platform_emc1403.c | 33 ++
.../intel-mid/device_libs/platform_emc1403.h | 16 +
.../intel-mid/device_libs/platform_gpio_keys.c | 82 ++++
.../intel-mid/device_libs/platform_gpio_keys.h | 16 +
.../platform/intel-mid/device_libs/platform_ipc.c | 59 +++
.../platform/intel-mid/device_libs/platform_ipc.h | 17 +
.../intel-mid/device_libs/platform_lis331.c | 32 ++
.../intel-mid/device_libs/platform_lis331.h | 16 +
.../intel-mid/device_libs/platform_max3111.c | 28 ++
.../intel-mid/device_libs/platform_max3111.h | 16 +
.../intel-mid/device_libs/platform_max7315.c | 62 +++
.../intel-mid/device_libs/platform_max7315.h | 19 +
.../intel-mid/device_libs/platform_mpu3050.c | 28 ++
.../intel-mid/device_libs/platform_mpu3050.h | 16 +
.../platform/intel-mid/device_libs/platform_msic.c | 87 ++++
.../platform/intel-mid/device_libs/platform_msic.h | 19 +
.../intel-mid/device_libs/platform_msic_audio.c | 36 ++
.../intel-mid/device_libs/platform_msic_audio.h | 16 +
.../intel-mid/device_libs/platform_msic_battery.c | 26 ++
.../intel-mid/device_libs/platform_msic_battery.h | 17 +
.../intel-mid/device_libs/platform_msic_gpio.c | 37 ++
.../intel-mid/device_libs/platform_msic_gpio.h | 16 +
.../intel-mid/device_libs/platform_msic_ocd.c | 39 ++
.../intel-mid/device_libs/platform_msic_ocd.h | 16 +
.../device_libs/platform_msic_power_btn.c | 25 ++
.../device_libs/platform_msic_power_btn.h | 17 +
.../intel-mid/device_libs/platform_msic_thermal.c | 26 ++
.../intel-mid/device_libs/platform_msic_thermal.h | 17 +
.../intel-mid/device_libs/platform_pmic_gpio.c | 36 ++
.../intel-mid/device_libs/platform_pmic_gpio.h | 16 +
.../intel-mid/device_libs/platform_tc35876x.c | 29 ++
.../intel-mid/device_libs/platform_tc35876x.h | 16 +
.../intel-mid/device_libs/platform_tca6416.c | 45 ++
.../intel-mid/device_libs/platform_tca6416.h | 20 +
arch/x86/platform/intel-mid/intel-mid.c | 432 +-------------------
arch/x86/platform/intel-mid/intel_mid_weak_decls.h | 15 +
40 files changed, 1161 insertions(+), 429 deletions(-)
create mode 100644 arch/x86/platform/intel-mid/board.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/Makefile
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_emc1403.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_emc1403.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_gpio_keys.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_gpio_keys.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_ipc.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_ipc.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_lis331.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_lis331.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_max3111.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_max3111.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_max7315.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_max7315.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_mpu3050.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_mpu3050.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic_audio.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic_audio.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic_battery.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic_battery.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic_gpio.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic_gpio.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic_ocd.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic_ocd.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic_power_btn.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic_power_btn.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic_thermal.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic_thermal.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_pmic_gpio.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_pmic_gpio.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_tc35876x.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_tc35876x.h
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_tca6416.c
create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_tca6416.h
create mode 100644 arch/x86/platform/intel-mid/intel_mid_weak_decls.h

diff --git a/arch/x86/include/asm/intel-mid.h b/arch/x86/include/asm/intel-mid.h
index ad236ae..afc282a 100644
--- a/arch/x86/include/asm/intel-mid.h
+++ b/arch/x86/include/asm/intel-mid.h
@@ -12,8 +12,11 @@
#define _ASM_X86_INTEL_MID_H

#include <linux/sfi.h>
+#include <linux/platform_device.h>

extern int intel_mid_pci_init(void);
+extern int get_gpio_by_name(const char *name);
+extern void intel_scu_device_register(struct platform_device *pdev);
extern int __init sfi_parse_mrtc(struct sfi_table_header *table);
extern int sfi_mrtc_num;
extern struct sfi_rtc_table_entry sfi_mrtc_array[];
@@ -54,9 +57,15 @@ static inline enum intel_mid_cpu_type intel_mid_identify_cpu(void)
return __intel_mid_cpu_chip;
}

+static inline bool intel_mid_has_msic(void)
+{
+ return (intel_mid_identify_cpu() == INTEL_MID_CPU_CHIP_PENWELL);
+}
+
#else /* !CONFIG_X86_INTEL_MID */

#define intel_mid_identify_cpu() (0)
+#define intel_mid_has_msic() (0)

#endif /* !CONFIG_X86_INTEL_MID */

@@ -93,4 +102,7 @@ extern void intel_scu_devices_destroy(void);

extern void intel_mid_rtc_init(void);

+/* the offset for the mapping of global gpio pin to irq */
+#define INTEL_MID_IRQ_OFFSET 0x100
+
#endif /* _ASM_X86_INTEL_MID_H */
diff --git a/arch/x86/platform/intel-mid/Makefile b/arch/x86/platform/intel-mid/Makefile
index de29635..36323ee 100644
--- a/arch/x86/platform/intel-mid/Makefile
+++ b/arch/x86/platform/intel-mid/Makefile
@@ -1,3 +1,8 @@
obj-$(CONFIG_X86_INTEL_MID) += intel-mid.o
obj-$(CONFIG_X86_INTEL_MID) += intel_mid_vrtc.o
obj-$(CONFIG_EARLY_PRINTK_INTEL_MID) += early_printk_intel_mid.o
+
+# BOARD files
+obj-$(CONFIG_X86_INTEL_MID) += board.o
+# platform configuration for board devices
+obj-y += device_libs/
\ No newline at end of file
diff --git a/arch/x86/platform/intel-mid/board.c b/arch/x86/platform/intel-mid/board.c
new file mode 100644
index 0000000..6b2e8ec
--- /dev/null
+++ b/arch/x86/platform/intel-mid/board.c
@@ -0,0 +1,109 @@
+/*
+ * board.c: Intel MID board file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/scatterlist.h>
+#include <linux/sfi.h>
+#include <linux/intel_pmic_gpio.h>
+#include <linux/spi/spi.h>
+#include <linux/i2c.h>
+#include <linux/i2c/pca953x.h>
+#include <linux/gpio.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/intel_msic.h>
+#include <linux/irq.h>
+#include <linux/module.h>
+#include <linux/notifier.h>
+#include <linux/i2c-gpio.h>
+
+#include <asm/setup.h>
+#include <asm/mpspec_def.h>
+#include <asm/hw_irq.h>
+#include <asm/apic.h>
+#include <asm/io_apic.h>
+#include <asm/intel-mid.h>
+#include <asm/intel_mid_vrtc.h>
+#include <asm/io.h>
+#include <asm/i8259.h>
+#include <asm/intel_scu_ipc.h>
+#include <asm/apb_timer.h>
+#include <asm/reboot.h>
+
+/*
+ * IPC devices
+ */
+#include "device_libs/platform_ipc.h"
+#include "device_libs/platform_pmic_gpio.h"
+#include "device_libs/platform_msic.h"
+#include "device_libs/platform_msic_battery.h"
+#include "device_libs/platform_msic_gpio.h"
+#include "device_libs/platform_msic_audio.h"
+#include "device_libs/platform_msic_power_btn.h"
+#include "device_libs/platform_msic_ocd.h"
+#include "device_libs/platform_msic_thermal.h"
+
+/*
+ * I2C devices
+ */
+#include "device_libs/platform_max7315.h"
+#include "device_libs/platform_tca6416.h"
+#include "device_libs/platform_mpu3050.h"
+#include "device_libs/platform_emc1403.h"
+#include "device_libs/platform_lis331.h"
+#include "device_libs/platform_mpu3050.h"
+#include "device_libs/platform_tc35876x.h"
+
+/*
+ * SPI devices
+ */
+#include "device_libs/platform_max3111.h"
+
+static void __init *no_platform_data(void *info)
+{
+ return NULL;
+}
+
+struct devs_id __initconst device_ids[] = {
+ {"bma023", SFI_DEV_TYPE_I2C, 1, &no_platform_data, NULL},
+ {"pmic_gpio", SFI_DEV_TYPE_SPI, 1, &pmic_gpio_platform_data, NULL},
+ {"pmic_gpio", SFI_DEV_TYPE_IPC, 1, &pmic_gpio_platform_data,
+ &ipc_device_handler},
+ {"spi_max3111", SFI_DEV_TYPE_SPI, 0, &max3111_platform_data, NULL},
+ {"i2c_max7315", SFI_DEV_TYPE_I2C, 1, &max7315_platform_data, NULL},
+ {"i2c_max7315_2", SFI_DEV_TYPE_I2C, 1, &max7315_platform_data, NULL},
+ {"tca6416", SFI_DEV_TYPE_I2C, 1, &tca6416_platform_data, NULL},
+ {"emc1403", SFI_DEV_TYPE_I2C, 1, &emc1403_platform_data, NULL},
+ {"i2c_accel", SFI_DEV_TYPE_I2C, 0, &lis331dl_platform_data, NULL},
+ {"pmic_audio", SFI_DEV_TYPE_IPC, 1, &no_platform_data,
+ &ipc_device_handler},
+ {"mpu3050", SFI_DEV_TYPE_I2C, 1, &mpu3050_platform_data, NULL},
+ {"i2c_disp_brig", SFI_DEV_TYPE_I2C, 0, &tc35876x_platform_data, NULL},
+
+ /* MSIC subdevices */
+ {"msic_battery", SFI_DEV_TYPE_IPC, 1, &msic_battery_platform_data,
+ &ipc_device_handler},
+ {"msic_gpio", SFI_DEV_TYPE_IPC, 1, &msic_gpio_platform_data,
+ &ipc_device_handler},
+ {"msic_audio", SFI_DEV_TYPE_IPC, 1, &msic_audio_platform_data,
+ &ipc_device_handler},
+ {"msic_power_btn", SFI_DEV_TYPE_IPC, 1, &msic_power_btn_platform_data,
+ &ipc_device_handler},
+ {"msic_ocd", SFI_DEV_TYPE_IPC, 1, &msic_ocd_platform_data,
+ &ipc_device_handler},
+ {"msic_thermal", SFI_DEV_TYPE_IPC, 1, &msic_thermal_platform_data,
+ &ipc_device_handler},
+ {},
+};
diff --git a/arch/x86/platform/intel-mid/device_libs/Makefile b/arch/x86/platform/intel-mid/device_libs/Makefile
new file mode 100644
index 0000000..f076b09
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/Makefile
@@ -0,0 +1,21 @@
+# IPC Devices
+obj-y += platform_ipc.o
+obj-$(subst m,y,$(CONFIG_MFD_INTEL_MSIC)) += platform_msic.o
+obj-$(subst m,y,$(CONFIG_SND_MFLD_MACHINE)) += platform_msic_audio.o
+obj-$(subst m,y,$(CONFIG_GPIO_MSIC)) += platform_msic_gpio.o
+obj-$(subst m,y,$(CONFIG_MFD_INTEL_MSIC)) += platform_msic_ocd.o
+obj-$(subst m,y,$(CONFIG_BATTERY_INTEL_MDF)) += platform_msic_battery.o
+obj-$(subst m,y,$(CONFIG_INTEL_MID_POWER_BUTTON)) += platform_msic_power_btn.o
+obj-$(subst m,y,$(CONFIG_GPIO_INTEL_PMIC)) += platform_pmic_gpio.o
+obj-$(subst m,y,$(CONFIG_INTEL_MFLD_THERMAL)) += platform_msic_thermal.o
+# I2C Devices
+obj-$(subst m,y,$(CONFIG_SENSORS_EMC1403)) += platform_emc1403.o
+obj-$(subst m,y,$(CONFIG_SENSORS_LIS3LV02D)) += platform_lis331.o
+obj-$(subst m,y,$(CONFIG_GPIO_PCA953X)) += platform_max7315.o
+obj-$(subst m,y,$(CONFIG_SENSORS_MPU3050)) += platform_mpu3050.o
+obj-$(subst m,y,$(CONFIG_GPIO_PCA953X)) += platform_tca6416.o
+obj-$(subst m,y,$(CONFIG_DRM_MEDFIELD)) += platform_tc35876x.o
+# SPI Devices
+obj-$(subst m,y,$(CONFIG_SERIAL_MRST_MAX3110)) += platform_max3111.o
+# MISC Devices
+obj-$(subst m,y,$(CONFIG_KEYBOARD_GPIO)) += platform_gpio_keys.o
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_emc1403.c b/arch/x86/platform/intel-mid/device_libs/platform_emc1403.c
new file mode 100644
index 0000000..301e414
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_emc1403.c
@@ -0,0 +1,33 @@
+/*
+ * platform_emc1403.c: emc1403 platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/init.h>
+#include <linux/gpio.h>
+#include <linux/i2c.h>
+#include <asm/intel-mid.h>
+#include "platform_emc1403.h"
+
+void __init *emc1403_platform_data(void *info)
+{
+ static short intr2nd_pdata;
+ struct i2c_board_info *i2c_info = info;
+ int intr = get_gpio_by_name("thermal_int");
+ int intr2nd = get_gpio_by_name("thermal_alert");
+
+ if (intr == -1 || intr2nd == -1)
+ return NULL;
+
+ i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET;
+ intr2nd_pdata = intr2nd + INTEL_MID_IRQ_OFFSET;
+
+ return &intr2nd_pdata;
+}
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_emc1403.h b/arch/x86/platform/intel-mid/device_libs/platform_emc1403.h
new file mode 100644
index 0000000..9e1fafd
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_emc1403.h
@@ -0,0 +1,16 @@
+/*
+ * platform_emc1403.h: emc1403 platform data header file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+#ifndef _PLATFORM_EMC1403_H_
+#define _PLATFORM_EMC1403_H_
+
+extern void __init *emc1403_platform_data(void *info) __attribute__((weak));
+#endif
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_gpio_keys.c b/arch/x86/platform/intel-mid/device_libs/platform_gpio_keys.c
new file mode 100644
index 0000000..4cae400
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_gpio_keys.c
@@ -0,0 +1,82 @@
+/*
+ * platform_gpio_keys.c: gpio_keys platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/input.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/gpio.h>
+#include <linux/gpio_keys.h>
+#include <linux/platform_device.h>
+#include <asm/intel-mid.h>
+#include "platform_gpio_keys.h"
+
+/*
+ * we will search these buttons in SFI GPIO table (by name)
+ * and register them dynamically. Please add all possible
+ * buttons here, we will shrink them if no GPIO found.
+ */
+static struct gpio_keys_button gpio_button[] = {
+ {KEY_POWER, -1, 1, "power_btn", EV_KEY, 0, 3000},
+ {KEY_PROG1, -1, 1, "prog_btn1", EV_KEY, 0, 20},
+ {KEY_PROG2, -1, 1, "prog_btn2", EV_KEY, 0, 20},
+ {SW_LID, -1, 1, "lid_switch", EV_SW, 0, 20},
+ {KEY_VOLUMEUP, -1, 1, "vol_up", EV_KEY, 0, 20},
+ {KEY_VOLUMEDOWN, -1, 1, "vol_down", EV_KEY, 0, 20},
+ {KEY_CAMERA, -1, 1, "camera_full", EV_KEY, 0, 20},
+ {KEY_CAMERA_FOCUS, -1, 1, "camera_half", EV_KEY, 0, 20},
+ {SW_KEYPAD_SLIDE, -1, 1, "MagSw1", EV_SW, 0, 20},
+ {SW_KEYPAD_SLIDE, -1, 1, "MagSw2", EV_SW, 0, 20},
+};
+
+static struct gpio_keys_platform_data gpio_keys = {
+ .buttons = gpio_button,
+ .rep = 1,
+ .nbuttons = -1, /* will fill it after search */
+};
+
+static struct platform_device pb_device = {
+ .name = DEVICE_NAME,
+ .id = -1,
+ .dev = {
+ .platform_data = &gpio_keys,
+ },
+};
+
+/*
+ * Shrink the non-existent buttons, register the gpio button
+ * device if there is some
+ */
+static int __init pb_keys_init(void)
+{
+ struct gpio_keys_button *gb = gpio_button;
+ int i, num, good = 0;
+
+ num = sizeof(gpio_button) / sizeof(struct gpio_keys_button);
+ for (i = 0; i < num; i++) {
+ gb[i].gpio = get_gpio_by_name(gb[i].desc);
+ pr_debug("info[%2d]: name = %s, gpio = %d\n", i, gb[i].desc,
+ gb[i].gpio);
+ if (gb[i].gpio == -1)
+ continue;
+
+ if (i != good)
+ gb[good] = gb[i];
+ good++;
+ }
+
+ if (good) {
+ gpio_keys.nbuttons = good;
+ return platform_device_register(&pb_device);
+ }
+ return 0;
+}
+late_initcall(pb_keys_init);
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_gpio_keys.h b/arch/x86/platform/intel-mid/device_libs/platform_gpio_keys.h
new file mode 100644
index 0000000..a671505
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_gpio_keys.h
@@ -0,0 +1,16 @@
+/*
+ * platform_gpio_keys.h: gpio_keys platform data header file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+#ifndef _PLATFORM_GPIO_KEYS_H_
+#define _PLATFORM_GPIO_KEYS_H_
+
+#define DEVICE_NAME "gpio-keys"
+#endif
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_ipc.c b/arch/x86/platform/intel-mid/device_libs/platform_ipc.c
new file mode 100644
index 0000000..eead55c
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_ipc.c
@@ -0,0 +1,59 @@
+/*
+ * platform_ipc.c: IPC platform library file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/sfi.h>
+#include <linux/gpio.h>
+#include <asm/intel-mid.h>
+#include "platform_ipc.h"
+
+void __init ipc_device_handler(struct sfi_device_table_entry *pentry,
+ struct devs_id *dev)
+{
+ struct platform_device *pdev;
+ void *pdata = NULL;
+ static struct resource __initdata res = {
+ .name = "IRQ",
+ .flags = IORESOURCE_IRQ,
+ };
+
+ pr_debug("IPC bus, name = %16.16s, irq = 0x%2x\n",
+ pentry->name, pentry->irq);
+
+ /*
+ * We need to call platform init of IPC devices to fill misc_pdata
+ * structure. It will be used in msic_init for initialization.
+ */
+ if (dev != NULL)
+ pdata = dev->get_platform_data(pentry);
+
+ /*
+ * On Medfield the platform device creation is handled by the MSIC
+ * MFD driver so we don't need to do it here.
+ */
+ if (intel_mid_has_msic())
+ return;
+
+ pdev = platform_device_alloc(pentry->name, 0);
+ if (pdev == NULL) {
+ pr_err("out of memory for SFI platform device '%s'.\n",
+ pentry->name);
+ return;
+ }
+ res.start = pentry->irq;
+ platform_device_add_resources(pdev, &res, 1);
+
+ pdev->dev.platform_data = pdata;
+ intel_scu_device_register(pdev);
+}
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_ipc.h b/arch/x86/platform/intel-mid/device_libs/platform_ipc.h
new file mode 100644
index 0000000..8f568dd
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_ipc.h
@@ -0,0 +1,17 @@
+/*
+ * platform_ipc.h: IPC platform library header file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+#ifndef _PLATFORM_IPC_H_
+#define _PLATFORM_IPC_H_
+
+extern void __init ipc_device_handler(struct sfi_device_table_entry *pentry,
+ struct devs_id *dev) __attribute__((weak));
+#endif
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_lis331.c b/arch/x86/platform/intel-mid/device_libs/platform_lis331.c
new file mode 100644
index 0000000..db96e30
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_lis331.c
@@ -0,0 +1,32 @@
+/*
+ * platform_lis331.c: lis331 platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/i2c.h>
+#include <linux/gpio.h>
+#include <asm/intel-mid.h>
+#include "platform_lis331.h"
+
+void __init *lis331dl_platform_data(void *info)
+{
+ static short intr2nd_pdata;
+ struct i2c_board_info *i2c_info = info;
+ int intr = get_gpio_by_name("accel_int");
+ int intr2nd = get_gpio_by_name("accel_2");
+
+ if (intr == -1 || intr2nd == -1)
+ return NULL;
+
+ i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET;
+ intr2nd_pdata = intr2nd + INTEL_MID_IRQ_OFFSET;
+
+ return &intr2nd_pdata;
+}
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_lis331.h b/arch/x86/platform/intel-mid/device_libs/platform_lis331.h
new file mode 100644
index 0000000..af7512b
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_lis331.h
@@ -0,0 +1,16 @@
+/*
+ * platform_lis331.h: lis331 platform data header file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+#ifndef _PLATFORM_LIS331_H_
+#define _PLATFORM_LIS331_H_
+
+extern void __init *lis331dl_platform_data(void *info) __attribute__((weak));
+#endif
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_max3111.c b/arch/x86/platform/intel-mid/device_libs/platform_max3111.c
new file mode 100644
index 0000000..1fdc259
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_max3111.c
@@ -0,0 +1,28 @@
+/*
+ * platform_max3111.c: max3111 platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/gpio.h>
+#include <linux/spi/spi.h>
+#include <asm/intel-mid.h>
+#include "platform_max3111.h"
+
+void __init *max3111_platform_data(void *info)
+{
+ struct spi_board_info *spi_info = info;
+ int intr = get_gpio_by_name("max3111_int");
+
+ spi_info->mode = SPI_MODE_0;
+ if (intr == -1)
+ return NULL;
+ spi_info->irq = intr + INTEL_MID_IRQ_OFFSET;
+ return NULL;
+}
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_max3111.h b/arch/x86/platform/intel-mid/device_libs/platform_max3111.h
new file mode 100644
index 0000000..66e1f26
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_max3111.h
@@ -0,0 +1,16 @@
+/*
+ * platform_max3111.h: max3111 platform data header file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+#ifndef _PLATFORM_MAX3111_H_
+#define _PLATFORM_MAX3111_H_
+
+extern void *max3111_platform_data(void *info) __attribute__((weak));
+#endif
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_max7315.c b/arch/x86/platform/intel-mid/device_libs/platform_max7315.c
new file mode 100644
index 0000000..1c10cb4
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_max7315.c
@@ -0,0 +1,62 @@
+/*
+ * platform_max7315.c: max7315 platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/init.h>
+#include <linux/gpio.h>
+#include <linux/i2c.h>
+#include <linux/i2c/pca953x.h>
+#include <asm/intel-mid.h>
+#include "platform_max7315.h"
+
+
+void __init *max7315_platform_data(void *info)
+{
+ static struct pca953x_platform_data max7315_pdata[MAX7315_NUM];
+ static int nr;
+ struct pca953x_platform_data *max7315 = &max7315_pdata[nr];
+ struct i2c_board_info *i2c_info = info;
+ int gpio_base, intr;
+ char base_pin_name[SFI_NAME_LEN + 1];
+ char intr_pin_name[SFI_NAME_LEN + 1];
+
+ if (nr == MAX7315_NUM) {
+ pr_err("too many max7315s, we only support %d\n",
+ MAX7315_NUM);
+ return NULL;
+ }
+ /* we have several max7315 on the board, we only need load several
+ * instances of the same pca953x driver to cover them
+ */
+ strcpy(i2c_info->type, "max7315");
+ if (nr++) {
+ sprintf(base_pin_name, "max7315_%d_base", nr);
+ sprintf(intr_pin_name, "max7315_%d_int", nr);
+ } else {
+ strcpy(base_pin_name, "max7315_base");
+ strcpy(intr_pin_name, "max7315_int");
+ }
+
+ gpio_base = get_gpio_by_name(base_pin_name);
+ intr = get_gpio_by_name(intr_pin_name);
+
+ if (gpio_base == -1)
+ return NULL;
+ max7315->gpio_base = gpio_base;
+ if (intr != -1) {
+ i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET;
+ max7315->irq_base = gpio_base + INTEL_MID_IRQ_OFFSET;
+ } else {
+ i2c_info->irq = -1;
+ max7315->irq_base = -1;
+ }
+ return max7315;
+}
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_max7315.h b/arch/x86/platform/intel-mid/device_libs/platform_max7315.h
new file mode 100644
index 0000000..d89cb7b
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_max7315.h
@@ -0,0 +1,19 @@
+/*
+ * platform_max7315.h: max7315 platform data header file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+#ifndef _PLATFORM_MAX7315_H_
+#define _PLATFORM_MAX7315_H_
+
+/* we have multiple max7315 on the board ... */
+#define MAX7315_NUM 2
+
+extern void __init *max7315_platform_data(void *info) __attribute__((weak));
+#endif
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_mpu3050.c b/arch/x86/platform/intel-mid/device_libs/platform_mpu3050.c
new file mode 100644
index 0000000..1f91ad3
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_mpu3050.c
@@ -0,0 +1,28 @@
+/*
+ * platform_mpu3050.c: mpu3050 platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/gpio.h>
+#include <linux/i2c.h>
+#include <asm/intel-mid.h>
+#include "platform_mpu3050.h"
+
+void *mpu3050_platform_data(void *info)
+{
+ struct i2c_board_info *i2c_info = info;
+ int intr = get_gpio_by_name("mpu3050_int");
+
+ if (intr == -1)
+ return NULL;
+
+ i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET;
+ return NULL;
+}
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_mpu3050.h b/arch/x86/platform/intel-mid/device_libs/platform_mpu3050.h
new file mode 100644
index 0000000..44452d6
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_mpu3050.h
@@ -0,0 +1,16 @@
+/*
+ * platform_mpu3050.h: mpu3050 platform data header file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+#ifndef _PLATFORM_MPU3050_H_
+#define _PLATFORM_MPU3050_H_
+
+extern void *mpu3050_platform_data(void *info) __attribute__((weak));
+#endif
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_msic.c b/arch/x86/platform/intel-mid/device_libs/platform_msic.c
new file mode 100644
index 0000000..9f4a775
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_msic.c
@@ -0,0 +1,87 @@
+/*
+ * platform_msic.c: MSIC platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/scatterlist.h>
+#include <linux/init.h>
+#include <linux/sfi.h>
+#include <linux/mfd/intel_msic.h>
+#include <asm/intel_scu_ipc.h>
+#include <asm/intel-mid.h>
+#include "platform_msic.h"
+
+struct intel_msic_platform_data msic_pdata;
+
+static struct resource msic_resources[] = {
+ {
+ .start = INTEL_MSIC_IRQ_PHYS_BASE,
+ .end = INTEL_MSIC_IRQ_PHYS_BASE + 64 - 1,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device msic_device = {
+ .name = "intel_msic",
+ .id = -1,
+ .dev = {
+ .platform_data = &msic_pdata,
+ },
+ .num_resources = ARRAY_SIZE(msic_resources),
+ .resource = msic_resources,
+};
+
+static int msic_scu_status_change(struct notifier_block *nb,
+ unsigned long code, void *data)
+{
+ if (code == SCU_DOWN) {
+ platform_device_unregister(&msic_device);
+ return 0;
+ }
+
+ return platform_device_register(&msic_device);
+}
+
+static int __init msic_init(void)
+{
+ static struct notifier_block msic_scu_notifier = {
+ .notifier_call = msic_scu_status_change,
+ };
+
+ /*
+ * We need to be sure that the SCU IPC is ready before MSIC device
+ * can be registered.
+ */
+ if (intel_mid_has_msic())
+ intel_scu_notifier_add(&msic_scu_notifier);
+
+ return 0;
+}
+arch_initcall(msic_init);
+
+/*
+ * msic_generic_platform_data - sets generic platform data for the block
+ * @info: pointer to the SFI device table entry for this block
+ * @block: MSIC block
+ *
+ * Function sets IRQ number from the SFI table entry for given device to
+ * the MSIC platform data.
+ */
+void *msic_generic_platform_data(void *info, enum intel_msic_block block)
+{
+ struct sfi_device_table_entry *entry = info;
+
+ BUG_ON(block < 0 || block >= INTEL_MSIC_BLOCK_LAST);
+ msic_pdata.irq[block] = entry->irq;
+
+ return NULL;
+}
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_msic.h b/arch/x86/platform/intel-mid/device_libs/platform_msic.h
new file mode 100644
index 0000000..917eb56
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_msic.h
@@ -0,0 +1,19 @@
+/*
+ * platform_msic.h: MSIC platform data header file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+#ifndef _PLATFORM_MSIC_H_
+#define _PLATFORM_MSIC_H_
+
+extern struct intel_msic_platform_data msic_pdata;
+
+extern void *msic_generic_platform_data(void *info,
+ enum intel_msic_block block) __attribute__((weak));
+#endif
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_msic_audio.c b/arch/x86/platform/intel-mid/device_libs/platform_msic_audio.c
new file mode 100644
index 0000000..942cc47
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_msic_audio.c
@@ -0,0 +1,36 @@
+/*
+ * platform_msic_audio.c: MSIC audio platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/scatterlist.h>
+#include <linux/init.h>
+#include <linux/sfi.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/intel_msic.h>
+#include <asm/intel-mid.h>
+#include "platform_msic.h"
+#include "platform_msic_audio.h"
+
+void *msic_audio_platform_data(void *info)
+{
+ struct platform_device *pdev;
+
+ pdev = platform_device_register_simple("sst-platform", -1, NULL, 0);
+
+ if (IS_ERR(pdev)) {
+ pr_err("failed to create audio platform device\n");
+ return NULL;
+ }
+
+ return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_AUDIO);
+}
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_msic_audio.h b/arch/x86/platform/intel-mid/device_libs/platform_msic_audio.h
new file mode 100644
index 0000000..7d1a00e
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_msic_audio.h
@@ -0,0 +1,16 @@
+/*
+ * platform_msic_audio.h: MSIC audio platform data header file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+#ifndef _PLATFORM_MSIC_AUDIO_H_
+#define _PLATFORM_MSIC_AUDIO_H_
+
+extern void __init *msic_audio_platform_data(void *info) __attribute__((weak));
+#endif
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_msic_battery.c b/arch/x86/platform/intel-mid/device_libs/platform_msic_battery.c
new file mode 100644
index 0000000..38b6113
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_msic_battery.c
@@ -0,0 +1,26 @@
+/*
+ * platform_msic_battery.c: MSIC battery platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/scatterlist.h>
+#include <linux/init.h>
+#include <linux/sfi.h>
+#include <linux/mfd/intel_msic.h>
+#include <asm/intel-mid.h>
+#include "platform_msic.h"
+#include "platform_msic_battery.h"
+
+void __init *msic_battery_platform_data(void *info)
+{
+ return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_BATTERY);
+}
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_msic_battery.h b/arch/x86/platform/intel-mid/device_libs/platform_msic_battery.h
new file mode 100644
index 0000000..d2d3d6c
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_msic_battery.h
@@ -0,0 +1,17 @@
+/*
+ * platform_msic_battery.h: MSIC battery platform data header file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+#ifndef _PLATFORM_MSIC_BATTERY_H_
+#define _PLATFORM_MSIC_BATTERY_H_
+
+extern void __init *msic_battery_platform_data(void *info)
+ __attribute__((weak));
+#endif
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_msic_gpio.c b/arch/x86/platform/intel-mid/device_libs/platform_msic_gpio.c
new file mode 100644
index 0000000..ada9bd1
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_msic_gpio.c
@@ -0,0 +1,37 @@
+/*
+ * platform_msic_gpio.c: MSIC GPIO platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/scatterlist.h>
+#include <linux/sfi.h>
+#include <linux/init.h>
+#include <linux/gpio.h>
+#include <linux/mfd/intel_msic.h>
+#include <asm/intel-mid.h>
+#include "platform_msic.h"
+#include "platform_msic_gpio.h"
+
+void __init *msic_gpio_platform_data(void *info)
+{
+ static struct intel_msic_gpio_pdata msic_gpio_pdata;
+
+ int gpio = get_gpio_by_name("msic_gpio_base");
+
+ if (gpio < 0)
+ return NULL;
+
+ msic_gpio_pdata.gpio_base = gpio;
+ msic_pdata.gpio = &msic_gpio_pdata;
+
+ return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_GPIO);
+}
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_msic_gpio.h b/arch/x86/platform/intel-mid/device_libs/platform_msic_gpio.h
new file mode 100644
index 0000000..19eebc0
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_msic_gpio.h
@@ -0,0 +1,16 @@
+/*
+ * platform_msic_gpio.h: MSIC GPIO platform data header file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+#ifndef _PLATFORM_MSIC_GPIO_H_
+#define _PLATFORM_MSIC_GPIO_H_
+
+extern void __init *msic_gpio_platform_data(void *info) __attribute__((weak));
+#endif
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_msic_ocd.c b/arch/x86/platform/intel-mid/device_libs/platform_msic_ocd.c
new file mode 100644
index 0000000..18446ca
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_msic_ocd.c
@@ -0,0 +1,39 @@
+/*
+ * platform_msic_ocd.c: MSIC OCD platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/scatterlist.h>
+#include <linux/sfi.h>
+#include <linux/init.h>
+#include <linux/gpio.h>
+#include <linux/mfd/intel_msic.h>
+#include <asm/intel-mid.h>
+#include "platform_msic.h"
+#include "platform_msic_ocd.h"
+
+void __init *msic_ocd_platform_data(void *info)
+{
+ static struct intel_msic_ocd_pdata msic_ocd_pdata;
+ int gpio;
+
+ gpio = get_gpio_by_name("ocd_gpio");
+
+ if (gpio < 0)
+ return NULL;
+
+ msic_ocd_pdata.gpio = gpio;
+ msic_pdata.ocd = &msic_ocd_pdata;
+
+ return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_OCD);
+}
+
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_msic_ocd.h b/arch/x86/platform/intel-mid/device_libs/platform_msic_ocd.h
new file mode 100644
index 0000000..cb08fbf
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_msic_ocd.h
@@ -0,0 +1,16 @@
+/*
+ * platform_msic_ocd.h: MSIC OCD platform data header file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+#ifndef _PLATFORM_MSIC_OCD_H_
+#define _PLATFORM_MSIC_OCD_H_
+
+extern void __init *msic_ocd_platform_data(void *info) __attribute__((weak));
+#endif
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_msic_power_btn.c b/arch/x86/platform/intel-mid/device_libs/platform_msic_power_btn.c
new file mode 100644
index 0000000..d8b087f
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_msic_power_btn.c
@@ -0,0 +1,25 @@
+/*
+ * platform_msic_power_btn.c: MSIC power btn platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/scatterlist.h>
+#include <linux/sfi.h>
+#include <linux/init.h>
+#include <linux/mfd/intel_msic.h>
+#include <asm/intel-mid.h>
+#include "platform_msic.h"
+#include "platform_msic_power_btn.h"
+
+void __init *msic_power_btn_platform_data(void *info)
+{
+ return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_POWER_BTN);
+}
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_msic_power_btn.h b/arch/x86/platform/intel-mid/device_libs/platform_msic_power_btn.h
new file mode 100644
index 0000000..f389b3d
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_msic_power_btn.h
@@ -0,0 +1,17 @@
+/*
+ * platform_msic_power_btn.h: MSIC power btn platform data header file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+#ifndef _PLATFORM_MSIC_POWER_BTN_H_
+#define _PLATFORM_MSIC_POWER_BTN_H_
+
+extern void __init *msic_power_btn_platform_data(void *info)
+ __attribute__((weak));
+#endif
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_msic_thermal.c b/arch/x86/platform/intel-mid/device_libs/platform_msic_thermal.c
new file mode 100644
index 0000000..236aa21
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_msic_thermal.c
@@ -0,0 +1,26 @@
+/*
+ * platform_msic_thermal.c: msic_thermal platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/input.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/gpio.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/intel_msic.h>
+#include <asm/intel-mid.h>
+#include "platform_msic.h"
+#include "platform_msic_thermal.h"
+
+void __init *msic_thermal_platform_data(void *info)
+{
+ return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_THERMAL);
+}
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_msic_thermal.h b/arch/x86/platform/intel-mid/device_libs/platform_msic_thermal.h
new file mode 100644
index 0000000..4cf45b8
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_msic_thermal.h
@@ -0,0 +1,17 @@
+/*
+ * platform_msic_thermal.h: msic_thermal platform data header file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+#ifndef _PLATFORM_MSIC_THERMAL_H_
+#define _PLATFORM_MSIC_THERMAL_H_
+
+extern void __init *msic_thermal_platform_data(void *info)
+ __attribute__((weak));
+#endif
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_pmic_gpio.c b/arch/x86/platform/intel-mid/device_libs/platform_pmic_gpio.c
new file mode 100644
index 0000000..f5d3ec8
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_pmic_gpio.c
@@ -0,0 +1,36 @@
+/*
+ * platform_pmic_gpio.c: PMIC GPIO platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/scatterlist.h>
+#include <linux/gpio.h>
+#include <linux/init.h>
+#include <linux/sfi.h>
+#include <asm/intel-mid.h>
+#include <linux/intel_pmic_gpio.h>
+#include "platform_pmic_gpio.h"
+
+void __init *pmic_gpio_platform_data(void *info)
+{
+ static struct intel_pmic_gpio_platform_data pmic_gpio_pdata;
+ int gpio_base = get_gpio_by_name("pmic_gpio_base");
+
+ if (gpio_base == -1)
+ gpio_base = 64;
+ pmic_gpio_pdata.gpio_base = gpio_base;
+ pmic_gpio_pdata.irq_base = gpio_base + INTEL_MID_IRQ_OFFSET;
+ pmic_gpio_pdata.gpiointr = 0xffffeff8;
+
+ return &pmic_gpio_pdata;
+}
+
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_pmic_gpio.h b/arch/x86/platform/intel-mid/device_libs/platform_pmic_gpio.h
new file mode 100644
index 0000000..e35d359
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_pmic_gpio.h
@@ -0,0 +1,16 @@
+/*
+ * platform_pmic_gpio.h: PMIC GPIO platform data header file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+#ifndef _PLATFORM_PMIC_GPIO_H_
+#define _PLATFORM_PMIC_GPIO_H_
+
+extern void __init *pmic_gpio_platform_data(void *info) __attribute__((weak));
+#endif
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_tc35876x.c b/arch/x86/platform/intel-mid/device_libs/platform_tc35876x.c
new file mode 100644
index 0000000..dd9ef63
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_tc35876x.c
@@ -0,0 +1,29 @@
+/*
+ * platform_tc35876x.c: tc35876x platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/gpio.h>
+#include <linux/i2c/tc35876x.h>
+#include <asm/intel-mid.h>
+#include "platform_tc35876x.h"
+
+/*tc35876x DSI_LVDS bridge chip and panel platform data*/
+void *tc35876x_platform_data(void *data)
+{
+ static struct tc35876x_platform_data pdata;
+
+ /* gpio pins set to -1 will not be used by the driver */
+ pdata.gpio_bridge_reset = get_gpio_by_name("LCMB_RXEN");
+ pdata.gpio_panel_bl_en = get_gpio_by_name("6S6P_BL_EN");
+ pdata.gpio_panel_vadd = get_gpio_by_name("EN_VREG_LCD_V3P3");
+
+ return &pdata;
+}
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_tc35876x.h b/arch/x86/platform/intel-mid/device_libs/platform_tc35876x.h
new file mode 100644
index 0000000..21ccf23
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_tc35876x.h
@@ -0,0 +1,16 @@
+/*
+ * platform_tc35876x.h: tc35876x platform data header file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+#ifndef _PLATFORM_TC35876X_H_
+#define _PLATFORM_TC35876X_H_
+
+extern void *tc35876x_platform_data(void *info) __attribute__((weak));
+#endif
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_tca6416.c b/arch/x86/platform/intel-mid/device_libs/platform_tca6416.c
new file mode 100644
index 0000000..79fccdd
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_tca6416.c
@@ -0,0 +1,45 @@
+/*
+ * platform_tca6416.c: tca6416 platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/i2c/pca953x.h>
+#include <linux/i2c.h>
+#include <linux/gpio.h>
+#include <asm/intel-mid.h>
+#include "platform_tca6416.h"
+
+void *tca6416_platform_data(void *info)
+{
+ static struct pca953x_platform_data tca6416;
+ struct i2c_board_info *i2c_info = info;
+ int gpio_base, intr;
+ char base_pin_name[SFI_NAME_LEN + 1];
+ char intr_pin_name[SFI_NAME_LEN + 1];
+
+ strcpy(i2c_info->type, TCA6416_NAME);
+ strcpy(base_pin_name, TCA6416_BASE);
+ strcpy(intr_pin_name, TCA6416_INTR);
+
+ gpio_base = get_gpio_by_name(base_pin_name);
+ intr = get_gpio_by_name(intr_pin_name);
+
+ if (gpio_base == -1)
+ return NULL;
+ tca6416.gpio_base = gpio_base;
+ if (intr != -1) {
+ i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET;
+ tca6416.irq_base = gpio_base + INTEL_MID_IRQ_OFFSET;
+ } else {
+ i2c_info->irq = -1;
+ tca6416.irq_base = -1;
+ }
+ return &tca6416;
+}
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_tca6416.h b/arch/x86/platform/intel-mid/device_libs/platform_tca6416.h
new file mode 100644
index 0000000..fe9c041
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_tca6416.h
@@ -0,0 +1,20 @@
+/*
+ * platform_tca6416.h: tca6416 platform data header file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+#ifndef _PLATFORM_TCA6416_H_
+#define _PLATFORM_TCA6416_H_
+
+#define TCA6416_NAME "tca6416"
+#define TCA6416_BASE "tca6416_base"
+#define TCA6416_INTR "tca6416_int"
+
+extern void *tca6416_platform_data(void *info) __attribute__((weak));
+#endif
diff --git a/arch/x86/platform/intel-mid/intel-mid.c b/arch/x86/platform/intel-mid/intel-mid.c
index 1018ee8..e770028 100644
--- a/arch/x86/platform/intel-mid/intel-mid.c
+++ b/arch/x86/platform/intel-mid/intel-mid.c
@@ -44,6 +44,7 @@
#include <asm/intel_scu_ipc.h>
#include <asm/apb_timer.h>
#include <asm/reboot.h>
+#include "intel_mid_weak_decls.h"

/*
* the clockevent devices on Moorestown/Medfield can be APBT or LAPIC clock,
@@ -78,8 +79,6 @@ int sfi_mtimer_num;
struct sfi_rtc_table_entry sfi_mrtc_array[SFI_MRTC_MAX];
EXPORT_SYMBOL_GPL(sfi_mrtc_array);
int sfi_mrtc_num;
-static void __init ipc_device_handler(struct sfi_device_table_entry *pentry,
- struct devs_id *dev);

static void intel_mid_power_off(void)
{
@@ -374,7 +373,7 @@ static int __init sfi_parse_gpio(struct sfi_table_header *table)
return 0;
}

-static int get_gpio_by_name(const char *name)
+int get_gpio_by_name(const char *name)
{
struct sfi_gpio_table_entry *pentry = gpio_table;
int i;
@@ -388,329 +387,6 @@ static int get_gpio_by_name(const char *name)
return -1;
}

-/* the offset for the mapping of global gpio pin to irq */
-#define INTEL_MID_IRQ_OFFSET 0x100
-
-static void __init *pmic_gpio_platform_data(void *info)
-{
- static struct intel_pmic_gpio_platform_data pmic_gpio_pdata;
- int gpio_base = get_gpio_by_name("pmic_gpio_base");
-
- if (gpio_base == -1)
- gpio_base = 64;
- pmic_gpio_pdata.gpio_base = gpio_base;
- pmic_gpio_pdata.irq_base = gpio_base + INTEL_MID_IRQ_OFFSET;
- pmic_gpio_pdata.gpiointr = 0xffffeff8;
-
- return &pmic_gpio_pdata;
-}
-
-static void __init *max3111_platform_data(void *info)
-{
- struct spi_board_info *spi_info = info;
- int intr = get_gpio_by_name("max3111_int");
-
- spi_info->mode = SPI_MODE_0;
- if (intr == -1)
- return NULL;
- spi_info->irq = intr + INTEL_MID_IRQ_OFFSET;
- return NULL;
-}
-
-/* we have multiple max7315 on the board ... */
-#define MAX7315_NUM 2
-static void __init *max7315_platform_data(void *info)
-{
- static struct pca953x_platform_data max7315_pdata[MAX7315_NUM];
- static int nr;
- struct pca953x_platform_data *max7315 = &max7315_pdata[nr];
- struct i2c_board_info *i2c_info = info;
- int gpio_base, intr;
- char base_pin_name[SFI_NAME_LEN + 1];
- char intr_pin_name[SFI_NAME_LEN + 1];
-
- if (nr == MAX7315_NUM) {
- pr_err("too many max7315s, we only support %d\n",
- MAX7315_NUM);
- return NULL;
- }
- /* we have several max7315 on the board, we only need load several
- * instances of the same pca953x driver to cover them
- */
- strcpy(i2c_info->type, "max7315");
- if (nr++) {
- sprintf(base_pin_name, "max7315_%d_base", nr);
- sprintf(intr_pin_name, "max7315_%d_int", nr);
- } else {
- strcpy(base_pin_name, "max7315_base");
- strcpy(intr_pin_name, "max7315_int");
- }
-
- gpio_base = get_gpio_by_name(base_pin_name);
- intr = get_gpio_by_name(intr_pin_name);
-
- if (gpio_base == -1)
- return NULL;
- max7315->gpio_base = gpio_base;
- if (intr != -1) {
- i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET;
- max7315->irq_base = gpio_base + INTEL_MID_IRQ_OFFSET;
- } else {
- i2c_info->irq = -1;
- max7315->irq_base = -1;
- }
- return max7315;
-}
-
-static void *tca6416_platform_data(void *info)
-{
- static struct pca953x_platform_data tca6416;
- struct i2c_board_info *i2c_info = info;
- int gpio_base, intr;
- char base_pin_name[SFI_NAME_LEN + 1];
- char intr_pin_name[SFI_NAME_LEN + 1];
-
- strcpy(i2c_info->type, "tca6416");
- strcpy(base_pin_name, "tca6416_base");
- strcpy(intr_pin_name, "tca6416_int");
-
- gpio_base = get_gpio_by_name(base_pin_name);
- intr = get_gpio_by_name(intr_pin_name);
-
- if (gpio_base == -1)
- return NULL;
- tca6416.gpio_base = gpio_base;
- if (intr != -1) {
- i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET;
- tca6416.irq_base = gpio_base + INTEL_MID_IRQ_OFFSET;
- } else {
- i2c_info->irq = -1;
- tca6416.irq_base = -1;
- }
- return &tca6416;
-}
-
-static void *mpu3050_platform_data(void *info)
-{
- struct i2c_board_info *i2c_info = info;
- int intr = get_gpio_by_name("mpu3050_int");
-
- if (intr == -1)
- return NULL;
-
- i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET;
- return NULL;
-}
-
-static void __init *emc1403_platform_data(void *info)
-{
- static short intr2nd_pdata;
- struct i2c_board_info *i2c_info = info;
- int intr = get_gpio_by_name("thermal_int");
- int intr2nd = get_gpio_by_name("thermal_alert");
-
- if (intr == -1 || intr2nd == -1)
- return NULL;
-
- i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET;
- intr2nd_pdata = intr2nd + INTEL_MID_IRQ_OFFSET;
-
- return &intr2nd_pdata;
-}
-
-static void __init *lis331dl_platform_data(void *info)
-{
- static short intr2nd_pdata;
- struct i2c_board_info *i2c_info = info;
- int intr = get_gpio_by_name("accel_int");
- int intr2nd = get_gpio_by_name("accel_2");
-
- if (intr == -1 || intr2nd == -1)
- return NULL;
-
- i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET;
- intr2nd_pdata = intr2nd + INTEL_MID_IRQ_OFFSET;
-
- return &intr2nd_pdata;
-}
-
-static void __init *no_platform_data(void *info)
-{
- return NULL;
-}
-
-static struct resource msic_resources[] = {
- {
- .start = INTEL_MSIC_IRQ_PHYS_BASE,
- .end = INTEL_MSIC_IRQ_PHYS_BASE + 64 - 1,
- .flags = IORESOURCE_MEM,
- },
-};
-
-static struct intel_msic_platform_data msic_pdata;
-
-static struct platform_device msic_device = {
- .name = "intel_msic",
- .id = -1,
- .dev = {
- .platform_data = &msic_pdata,
- },
- .num_resources = ARRAY_SIZE(msic_resources),
- .resource = msic_resources,
-};
-
-static inline bool intel_mid_has_msic(void)
-{
- return intel_mid_identify_cpu() == INTEL_MID_CPU_CHIP_PENWELL;
-}
-
-static int msic_scu_status_change(struct notifier_block *nb,
- unsigned long code, void *data)
-{
- if (code == SCU_DOWN) {
- platform_device_unregister(&msic_device);
- return 0;
- }
-
- return platform_device_register(&msic_device);
-}
-
-static int __init msic_init(void)
-{
- static struct notifier_block msic_scu_notifier = {
- .notifier_call = msic_scu_status_change,
- };
-
- /*
- * We need to be sure that the SCU IPC is ready before MSIC device
- * can be registered.
- */
- if (intel_mid_has_msic())
- intel_scu_notifier_add(&msic_scu_notifier);
-
- return 0;
-}
-arch_initcall(msic_init);
-
-/*
- * msic_generic_platform_data - sets generic platform data for the block
- * @info: pointer to the SFI device table entry for this block
- * @block: MSIC block
- *
- * Function sets IRQ number from the SFI table entry for given device to
- * the MSIC platform data.
- */
-static void *msic_generic_platform_data(void *info, enum intel_msic_block block)
-{
- struct sfi_device_table_entry *entry = info;
-
- BUG_ON(block < 0 || block >= INTEL_MSIC_BLOCK_LAST);
- msic_pdata.irq[block] = entry->irq;
-
- return no_platform_data(info);
-}
-
-static void *msic_battery_platform_data(void *info)
-{
- return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_BATTERY);
-}
-
-static void *msic_gpio_platform_data(void *info)
-{
- static struct intel_msic_gpio_pdata pdata;
- int gpio = get_gpio_by_name("msic_gpio_base");
-
- if (gpio < 0)
- return NULL;
-
- pdata.gpio_base = gpio;
- msic_pdata.gpio = &pdata;
-
- return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_GPIO);
-}
-
-static void *msic_audio_platform_data(void *info)
-{
- struct platform_device *pdev;
-
- pdev = platform_device_register_simple("sst-platform", -1, NULL, 0);
- if (IS_ERR(pdev)) {
- pr_err("failed to create audio platform device\n");
- return NULL;
- }
-
- return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_AUDIO);
-}
-
-static void *msic_power_btn_platform_data(void *info)
-{
- return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_POWER_BTN);
-}
-
-static void *msic_ocd_platform_data(void *info)
-{
- static struct intel_msic_ocd_pdata pdata;
- int gpio = get_gpio_by_name("ocd_gpio");
-
- if (gpio < 0)
- return NULL;
-
- pdata.gpio = gpio;
- msic_pdata.ocd = &pdata;
-
- return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_OCD);
-}
-
-static void *msic_thermal_platform_data(void *info)
-{
- return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_THERMAL);
-}
-
-/* tc35876x DSI-LVDS bridge chip and panel platform data */
-static void *tc35876x_platform_data(void *data)
-{
- static struct tc35876x_platform_data pdata;
-
- /* gpio pins set to -1 will not be used by the driver */
- pdata.gpio_bridge_reset = get_gpio_by_name("LCMB_RXEN");
- pdata.gpio_panel_bl_en = get_gpio_by_name("6S6P_BL_EN");
- pdata.gpio_panel_vadd = get_gpio_by_name("EN_VREG_LCD_V3P3");
-
- return &pdata;
-}
-
-static const struct devs_id __initconst device_ids[] = {
- {"bma023", SFI_DEV_TYPE_I2C, 1, &no_platform_data, NULL},
- {"pmic_gpio", SFI_DEV_TYPE_SPI, 1, &pmic_gpio_platform_data, NULL},
- {"pmic_gpio", SFI_DEV_TYPE_IPC, 1, &pmic_gpio_platform_data,
- &ipc_device_handler},
- {"spi_max3111", SFI_DEV_TYPE_SPI, 0, &max3111_platform_data, NULL},
- {"i2c_max7315", SFI_DEV_TYPE_I2C, 1, &max7315_platform_data, NULL},
- {"i2c_max7315_2", SFI_DEV_TYPE_I2C, 1, &max7315_platform_data, NULL},
- {"tca6416", SFI_DEV_TYPE_I2C, 1, &tca6416_platform_data, NULL},
- {"emc1403", SFI_DEV_TYPE_I2C, 1, &emc1403_platform_data, NULL},
- {"i2c_accel", SFI_DEV_TYPE_I2C, 0, &lis331dl_platform_data, NULL},
- {"pmic_audio", SFI_DEV_TYPE_IPC, 1, &no_platform_data,
- &ipc_device_handler},
- {"mpu3050", SFI_DEV_TYPE_I2C, 1, &mpu3050_platform_data, NULL},
- {"i2c_disp_brig", SFI_DEV_TYPE_I2C, 0, &tc35876x_platform_data, NULL},
-
- /* MSIC subdevices */
- {"msic_battery", SFI_DEV_TYPE_IPC, 1, &msic_battery_platform_data,
- &ipc_device_handler},
- {"msic_gpio", SFI_DEV_TYPE_IPC, 1, &msic_gpio_platform_data,
- &ipc_device_handler},
- {"msic_audio", SFI_DEV_TYPE_IPC, 1, &msic_audio_platform_data,
- &ipc_device_handler},
- {"msic_power_btn", SFI_DEV_TYPE_IPC, 1, &msic_power_btn_platform_data,
- &ipc_device_handler},
- {"msic_ocd", SFI_DEV_TYPE_IPC, 1, &msic_ocd_platform_data,
- &ipc_device_handler},
- {"msic_thermal", SFI_DEV_TYPE_IPC, 1, &msic_thermal_platform_data,
- &ipc_device_handler},
- {},
-};
-
#define MAX_IPCDEVS 24
static struct platform_device *ipc_devs[MAX_IPCDEVS];
static int ipc_next_dev;
@@ -724,7 +400,7 @@ static struct i2c_board_info *i2c_devs[MAX_SCU_I2C];
static int i2c_bus[MAX_SCU_I2C];
static int i2c_next_dev;

-static void __init intel_scu_device_register(struct platform_device *pdev)
+void __init intel_scu_device_register(struct platform_device *pdev)
{
if (ipc_next_dev == MAX_IPCDEVS)
pr_err("too many SCU IPC devices");
@@ -902,46 +578,6 @@ static void __init sfi_handle_i2c_dev(struct sfi_device_table_entry *pentry,
i2c_register_board_info(pentry->host_num, &i2c_info, 1);
}

-static void __init ipc_device_handler(struct sfi_device_table_entry *pentry,
- struct devs_id *dev)
-{
- struct platform_device *pdev;
- void *pdata = NULL;
- static struct resource __initdata res = {
- .name = "IRQ",
- .flags = IORESOURCE_IRQ,
- };
-
- pr_debug("IPC bus, name = %16.16s, irq = 0x%2x\n",
- pentry->name, pentry->irq);
-
- /*
- * We need to call platform init of IPC devices to fill misc_pdata
- * structure. It will be used in msic_init for initialization.
- */
- if (dev != NULL)
- pdata = dev->get_platform_data(pentry);
-
- /*
- * On Medfield the platform device creation is handled by the MSIC
- * MFD driver so we don't need to do it here.
- */
- if (intel_mid_has_msic())
- return;
-
- pdev = platform_device_alloc(pentry->name, 0);
- if (pdev == NULL) {
- pr_err("out of memory for SFI platform device '%s'.\n",
- pentry->name);
- return;
- }
- res.start = pentry->irq;
- platform_device_add_resources(pdev, &res, 1);
-
- pdev->dev.platform_data = pdata;
- intel_scu_device_register(pdev);
-}
-
static struct devs_id __init *get_device_id(u8 type, char *name)
{
struct devs_id *dev = device_ids;
@@ -1025,65 +661,3 @@ static int __init intel_mid_platform_init(void)
return 0;
}
arch_initcall(intel_mid_platform_init);
-
-/*
- * we will search these buttons in SFI GPIO table (by name)
- * and register them dynamically. Please add all possible
- * buttons here, we will shrink them if no GPIO found.
- */
-static struct gpio_keys_button gpio_button[] = {
- {KEY_POWER, -1, 1, "power_btn", EV_KEY, 0, 3000},
- {KEY_PROG1, -1, 1, "prog_btn1", EV_KEY, 0, 20},
- {KEY_PROG2, -1, 1, "prog_btn2", EV_KEY, 0, 20},
- {SW_LID, -1, 1, "lid_switch", EV_SW, 0, 20},
- {KEY_VOLUMEUP, -1, 1, "vol_up", EV_KEY, 0, 20},
- {KEY_VOLUMEDOWN, -1, 1, "vol_down", EV_KEY, 0, 20},
- {KEY_CAMERA, -1, 1, "camera_full", EV_KEY, 0, 20},
- {KEY_CAMERA_FOCUS, -1, 1, "camera_half", EV_KEY, 0, 20},
- {SW_KEYPAD_SLIDE, -1, 1, "MagSw1", EV_SW, 0, 20},
- {SW_KEYPAD_SLIDE, -1, 1, "MagSw2", EV_SW, 0, 20},
-};
-
-static struct gpio_keys_platform_data intel_mid_gpio_keys = {
- .buttons = gpio_button,
- .rep = 1,
- .nbuttons = -1, /* will fill it after search */
-};
-
-static struct platform_device pb_device = {
- .name = "gpio-keys",
- .id = -1,
- .dev = {
- .platform_data = &intel_mid_gpio_keys,
- },
-};
-
-/*
- * Shrink the non-existent buttons, register the gpio button
- * device if there is some
- */
-static int __init pb_keys_init(void)
-{
- struct gpio_keys_button *gb = gpio_button;
- int i, num, good = 0;
-
- num = sizeof(gpio_button) / sizeof(struct gpio_keys_button);
- for (i = 0; i < num; i++) {
- gb[i].gpio = get_gpio_by_name(gb[i].desc);
- pr_debug("info[%2d]: name = %s, gpio = %d\n", i, gb[i].desc,
- gb[i].gpio);
- if (gb[i].gpio == -1)
- continue;
-
- if (i != good)
- gb[good] = gb[i];
- good++;
- }
-
- if (good) {
- intel_mid_gpio_keys.nbuttons = good;
- return platform_device_register(&pb_device);
- }
- return 0;
-}
-late_initcall(pb_keys_init);
diff --git a/arch/x86/platform/intel-mid/intel_mid_weak_decls.h b/arch/x86/platform/intel-mid/intel_mid_weak_decls.h
new file mode 100644
index 0000000..dcbe643
--- /dev/null
+++ b/arch/x86/platform/intel-mid/intel_mid_weak_decls.h
@@ -0,0 +1,15 @@
+/*
+ * intel_mid_weak_decls.h: Weak declarations of intel-mid.c
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+
+/* __attribute__((weak)) makes these declarations overridable */
+extern struct devs_id __initconst device_ids[] __attribute__((weak));
--
1.7.9.5

2013-05-30 03:04:59

by Kuppuswamy, Sathyanarayanan

Subject: [PATCH v1 12/13] gpiolib: append SFI helpers for GPIO API

From: Andy Shevchenko <[email protected]>

To support some (legacy) firmwares and platforms let's make life easier for
their customers.

Change-Id: I39a0e3e0ed4e04a0d733801f59d46d76189195e8
Signed-off-by: Andy Shevchenko <[email protected]>
---
drivers/gpio/Kconfig | 4 +++
drivers/gpio/Makefile | 1 +
drivers/gpio/gpiolib-sfi.c | 76 ++++++++++++++++++++++++++++++++++++++++++++
drivers/sfi/sfi_core.c | 7 ++++
include/linux/sfi_gpio.h | 27 ++++++++++++++++
5 files changed, 115 insertions(+)
create mode 100644 drivers/gpio/gpiolib-sfi.c
create mode 100644 include/linux/sfi_gpio.h

diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 573c449..8e4b0b8 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -51,6 +51,10 @@ config OF_GPIO
def_bool y
depends on OF

+config GPIO_SFI
+ def_bool y
+ depends on SFI
+
config GPIO_ACPI
def_bool y
depends on ACPI
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index 0cb2d65..63d2abd 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -5,6 +5,7 @@ ccflags-$(CONFIG_DEBUG_GPIO) += -DDEBUG
obj-$(CONFIG_GPIO_DEVRES) += devres.o
obj-$(CONFIG_GPIOLIB) += gpiolib.o
obj-$(CONFIG_OF_GPIO) += gpiolib-of.o
+obj-$(CONFIG_GPIO_SFI) += gpiolib-sfi.o
obj-$(CONFIG_GPIO_ACPI) += gpiolib-acpi.o

# Device drivers. Generally keep list sorted alphabetically
diff --git a/drivers/gpio/gpiolib-sfi.c b/drivers/gpio/gpiolib-sfi.c
new file mode 100644
index 0000000..2f15a81
--- /dev/null
+++ b/drivers/gpio/gpiolib-sfi.c
@@ -0,0 +1,76 @@
+/*
+ * SFI helpers for GPIO API
+ *
+ * Copyright (C) 2013, Intel Corporation
+ * Author: Andy Shevchenko <[email protected]>
+ *
+ * Based on work done for Intel MID platforms (mrst.c)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#define pr_fmt(fmt) "SFI: GPIO: " fmt
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/gpio.h>
+#include <linux/export.h>
+#include <linux/sfi_gpio.h>
+#include <linux/sfi.h>
+
+static struct sfi_gpio_table_entry *sfi_gpio_table;
+static int sfi_gpio_num_entry;
+
+int sfi_get_gpio_by_name(const char *name)
+{
+ struct sfi_gpio_table_entry *pentry = sfi_gpio_table;
+ int i;
+
+ if (!pentry)
+ return -1;
+
+ for (i = 0; i < sfi_gpio_num_entry; i++, pentry++) {
+ if (!strncmp(name, pentry->pin_name, SFI_NAME_LEN))
+ return pentry->pin_no;
+ }
+
+ return -1;
+}
+EXPORT_SYMBOL_GPL(sfi_get_gpio_by_name);
+
+static int __init sfi_gpio_parse(struct sfi_table_header *table)
+{
+ struct sfi_table_simple *sb = (struct sfi_table_simple *)table;
+ struct sfi_gpio_table_entry *pentry;
+ int num, i;
+
+ if (sfi_gpio_table)
+ return 0;
+
+ num = SFI_GET_NUM_ENTRIES(sb, struct sfi_gpio_table_entry);
+ pentry = (struct sfi_gpio_table_entry *)sb->pentry;
+
+ sfi_gpio_table = kmalloc(num * sizeof(*pentry), GFP_KERNEL);
+ if (!sfi_gpio_table)
+ return -ENOMEM;
+
+ memcpy(sfi_gpio_table, pentry, num * sizeof(*pentry));
+ sfi_gpio_num_entry = num;
+
+ pr_debug("Pin info:\n");
+ for (i = 0; i < num; i++, pentry++)
+ pr_debug("[%2d] chip = %16.16s, name = %16.16s, pin=%d\n", i,
+ pentry->controller_name, pentry->pin_name,
+ pentry->pin_no);
+
+ return 0;
+}
+
+int __init sfi_gpio_init(void)
+{
+ return sfi_table_parse(SFI_SIG_GPIO, NULL, NULL, sfi_gpio_parse);
+}
diff --git a/drivers/sfi/sfi_core.c b/drivers/sfi/sfi_core.c
index 296db7a..2828da0 100644
--- a/drivers/sfi/sfi_core.c
+++ b/drivers/sfi/sfi_core.c
@@ -67,6 +67,7 @@
#include <linux/acpi.h>
#include <linux/init.h>
#include <linux/sfi.h>
+#include <linux/sfi_gpio.h>
#include <linux/slab.h>

#include "sfi_core.h"
@@ -512,6 +513,12 @@ void __init sfi_init_late(void)
syst_va = sfi_map_memory(syst_pa, length);

sfi_acpi_init();
+
+ /*
+ * Parsing GPIO table first, since the DEVS table will need this table
+ * to map the pin name to the actual pin.
+ */
+ sfi_gpio_init();
}

/*
diff --git a/include/linux/sfi_gpio.h b/include/linux/sfi_gpio.h
new file mode 100644
index 0000000..ef7e497
--- /dev/null
+++ b/include/linux/sfi_gpio.h
@@ -0,0 +1,27 @@
+#ifndef _LINUX_SFI_GPIO_H_
+#define _LINUX_SFI_GPIO_H_
+
+#include <linux/errno.h>
+#include <linux/gpio.h>
+#include <linux/sfi.h>
+
+#ifdef CONFIG_GPIO_SFI
+
+int sfi_get_gpio_by_name(const char *name);
+int __init sfi_gpio_init(void);
+
+#else /* CONFIG_GPIO_SFI */
+
+static inline int sfi_get_gpio_by_name(const char *name);
+{
+ return -1;
+}
+
+static inline int __init sfi_gpio_init(void)
+{
+ return -ENODEV;
+}
+
+#endif /* CONFIG_GPIO_SFI */
+
+#endif /* _LINUX_SFI_GPIO_H_ */
--
1.7.9.5

2013-05-30 03:05:44

by Kuppuswamy, Sathyanarayanan

Subject: [PATCH v1 05/13] intel_mid: Renamed *mrst* to *intel_mid*

mrst is used as common name to represent all intel_mid type
soc's. But moorsetwon is just one of the intel_mid soc. So
renamed them to use intel_mid.

This patch mainly renames the variables and related
functions that uses *mrst* prefix with *intel_mid*.

To ensure that there are no functional changes, I have compared
the objdump of related files before and after rename and found
the only difference is symbol and name changes.

Change-Id: I86729b45c653def052d8275edd50cdae76edb18d
Signed-off-by: Sathyanarayanan Kuppuswamy <[email protected]>
---
Documentation/kernel-parameters.txt | 6 +-
arch/x86/include/asm/intel-mid.h | 26 ++---
arch/x86/include/asm/setup.h | 4 +-
arch/x86/include/uapi/asm/bootparam.h | 2 +-
arch/x86/kernel/apb_timer.c | 8 +-
arch/x86/kernel/head32.c | 4 +-
arch/x86/kernel/rtc.c | 2 +-
arch/x86/pci/intel_mid_pci.c | 12 +--
.../platform/intel-mid/early_printk_intel_mid.c | 2 +-
arch/x86/platform/intel-mid/intel-mid.c | 109 ++++++++++----------
arch/x86/platform/intel-mid/intel_mid_vrtc.c | 8 +-
drivers/platform/x86/intel_scu_ipc.c | 2 +-
drivers/watchdog/intel_scu_watchdog.c | 2 +-
13 files changed, 93 insertions(+), 94 deletions(-)

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 6e3b18a..667408b 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -3345,11 +3345,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
default x2apic cluster mode on platforms
supporting x2apic.

- x86_mrst_timer= [X86-32,APBT]
- Choose timer option for x86 Moorestown MID platform.
+ x86_intel_mid_timer= [X86-32,APBT]
+ Choose timer option for x86 Intel MID platform.
Two valid options are apbt timer only and lapic timer
plus one apbt timer for broadcast timer.
- x86_mrst_timer=apbt_only | lapic_and_apbt
+ x86_intel_mid_timer=apbt_only | lapic_and_apbt

xd= [HW,XT] Original XT pre-IDE (RLL encoded) disks.
xd_geo= See header of drivers/block/xd.c.
diff --git a/arch/x86/include/asm/intel-mid.h b/arch/x86/include/asm/intel-mid.h
index cc79a4f..beb7a5f 100644
--- a/arch/x86/include/asm/intel-mid.h
+++ b/arch/x86/include/asm/intel-mid.h
@@ -13,7 +13,7 @@

#include <linux/sfi.h>

-extern int pci_mrst_init(void);
+extern int intel_mid_pci_init(void);
extern int __init sfi_parse_mrtc(struct sfi_table_header *table);
extern int sfi_mrtc_num;
extern struct sfi_rtc_table_entry sfi_mrtc_array[];
@@ -25,33 +25,33 @@ extern struct sfi_rtc_table_entry sfi_mrtc_array[];
* we treat Medfield/Penwell as a variant of Moorestown. Penwell can be
* identified via MSRs.
*/
-enum mrst_cpu_type {
+enum intel_mid_cpu_type {
/* 1 was Moorestown */
- MRST_CPU_CHIP_PENWELL = 2,
+ INTEL_MID_CPU_CHIP_PENWELL = 2,
};

-extern enum mrst_cpu_type __mrst_cpu_chip;
+extern enum intel_mid_cpu_type __intel_mid_cpu_chip;

#ifdef CONFIG_X86_INTEL_MID

-static inline enum mrst_cpu_type mrst_identify_cpu(void)
+static inline enum intel_mid_cpu_type intel_mid_identify_cpu(void)
{
- return __mrst_cpu_chip;
+ return __intel_mid_cpu_chip;
}

#else /* !CONFIG_X86_INTEL_MID */

-#define mrst_identify_cpu() (0)
+#define intel_mid_identify_cpu() (0)

#endif /* !CONFIG_X86_INTEL_MID */

-enum mrst_timer_options {
- MRST_TIMER_DEFAULT,
- MRST_TIMER_APBT_ONLY,
- MRST_TIMER_LAPIC_APBT,
+enum intel_mid_timer_options {
+ INTEL_MID_TIMER_DEFAULT,
+ INTEL_MID_TIMER_APBT_ONLY,
+ INTEL_MID_TIMER_LAPIC_APBT,
};

-extern enum mrst_timer_options mrst_timer_options;
+extern enum intel_mid_timer_options intel_mid_timer_options;

/*
* Penwell uses spread spectrum clock, so the freq number is not exactly
@@ -76,6 +76,6 @@ extern void intel_scu_devices_destroy(void);
#define MRST_VRTC_MAP_SZ (1024)
/*#define MRST_VRTC_PGOFFSET (0xc00) */

-extern void mrst_rtc_init(void);
+extern void intel_mid_rtc_init(void);

#endif /* _ASM_X86_INTEL_MID_H */
diff --git a/arch/x86/include/asm/setup.h b/arch/x86/include/asm/setup.h
index b7bf350..cafa665 100644
--- a/arch/x86/include/asm/setup.h
+++ b/arch/x86/include/asm/setup.h
@@ -49,9 +49,9 @@ extern void i386_reserve_resources(void);
extern void setup_default_timer_irq(void);

#ifdef CONFIG_X86_INTEL_MID
-extern void x86_mrst_early_setup(void);
+extern void x86_intel_mid_early_setup(void);
#else
-static inline void x86_mrst_early_setup(void) { }
+static inline void x86_intel_mid_early_setup(void) { }
#endif

#ifdef CONFIG_X86_INTEL_CE
diff --git a/arch/x86/include/uapi/asm/bootparam.h b/arch/x86/include/uapi/asm/bootparam.h
index 0874424..f7e0070 100644
--- a/arch/x86/include/uapi/asm/bootparam.h
+++ b/arch/x86/include/uapi/asm/bootparam.h
@@ -159,7 +159,7 @@ enum {
X86_SUBARCH_PC = 0,
X86_SUBARCH_LGUEST,
X86_SUBARCH_XEN,
- X86_SUBARCH_MRST,
+ X86_SUBARCH_INTEL_MID,
X86_SUBARCH_CE4100,
X86_NR_SUBARCHS,
};
diff --git a/arch/x86/kernel/apb_timer.c b/arch/x86/kernel/apb_timer.c
index 9154836..af5b08a 100644
--- a/arch/x86/kernel/apb_timer.c
+++ b/arch/x86/kernel/apb_timer.c
@@ -157,13 +157,13 @@ static int __init apbt_clockevent_register(void)

adev->num = smp_processor_id();
adev->timer = dw_apb_clockevent_init(smp_processor_id(), "apbt0",
- mrst_timer_options == MRST_TIMER_LAPIC_APBT ?
+ intel_mid_timer_options == INTEL_MID_TIMER_LAPIC_APBT ?
APBT_CLOCKEVENT_RATING - 100 : APBT_CLOCKEVENT_RATING,
adev_virt_addr(adev), 0, apbt_freq);
/* Firmware does EOI handling for us. */
adev->timer->eoi = NULL;

- if (mrst_timer_options == MRST_TIMER_LAPIC_APBT) {
+ if (intel_mid_timer_options == INTEL_MID_TIMER_LAPIC_APBT) {
global_clock_event = &adev->timer->ced;
printk(KERN_DEBUG "%s clockevent registered as global\n",
global_clock_event->name);
@@ -253,7 +253,7 @@ static int apbt_cpuhp_notify(struct notifier_block *n,

static __init int apbt_late_init(void)
{
- if (mrst_timer_options == MRST_TIMER_LAPIC_APBT ||
+ if (intel_mid_timer_options == INTEL_MID_TIMER_LAPIC_APBT ||
!apb_timer_block_enabled)
return 0;
/* This notifier should be called after workqueue is ready */
@@ -340,7 +340,7 @@ void __init apbt_time_init(void)
}
#ifdef CONFIG_SMP
/* kernel cmdline disable apb timer, so we will use lapic timers */
- if (mrst_timer_options == MRST_TIMER_LAPIC_APBT) {
+ if (intel_mid_timer_options == INTEL_MID_TIMER_LAPIC_APBT) {
printk(KERN_INFO "apbt: disabled per cpu timer\n");
return;
}
diff --git a/arch/x86/kernel/head32.c b/arch/x86/kernel/head32.c
index 138463a..8f344e7 100644
--- a/arch/x86/kernel/head32.c
+++ b/arch/x86/kernel/head32.c
@@ -35,8 +35,8 @@ void __init i386_start_kernel(void)

/* Call the subarch specific early setup function */
switch (boot_params.hdr.hardware_subarch) {
- case X86_SUBARCH_MRST:
- x86_mrst_early_setup();
+ case X86_SUBARCH_INTEL_MID:
+ x86_intel_mid_early_setup();
break;
case X86_SUBARCH_CE4100:
x86_ce4100_early_setup();
diff --git a/arch/x86/kernel/rtc.c b/arch/x86/kernel/rtc.c
index 7a9ed8f..9651d5e 100644
--- a/arch/x86/kernel/rtc.c
+++ b/arch/x86/kernel/rtc.c
@@ -192,7 +192,7 @@ static __init int add_rtc_cmos(void)
return 0;

/* Intel MID platforms don't have ioport rtc */
- if (mrst_identify_cpu())
+ if (intel_mid_identify_cpu())
return -ENODEV;

platform_device_register(&rtc_device);
diff --git a/arch/x86/pci/intel_mid_pci.c b/arch/x86/pci/intel_mid_pci.c
index 5001003..caeda96 100644
--- a/arch/x86/pci/intel_mid_pci.c
+++ b/arch/x86/pci/intel_mid_pci.c
@@ -203,7 +203,7 @@ static int pci_write(struct pci_bus *bus, unsigned int devfn, int where,
where, size, value);
}

-static int mrst_pci_irq_enable(struct pci_dev *dev)
+static int intel_mid_pci_irq_enable(struct pci_dev *dev)
{
u8 pin;
struct io_apic_irq_attr irq_attr;
@@ -222,23 +222,23 @@ static int mrst_pci_irq_enable(struct pci_dev *dev)
return 0;
}

-struct pci_ops pci_mrst_ops = {
+struct pci_ops intel_mid_pci_ops = {
.read = pci_read,
.write = pci_write,
};

/**
- * pci_mrst_init - installs pci_mrst_ops
+ * intel_mid_pci_init - installs intel_mid_pci_ops
*
* Moorestown has an interesting PCI implementation (see above).
* Called when the early platform detection installs it.
*/
-int __init pci_mrst_init(void)
+int __init intel_mid_pci_init(void)
{
pr_info("Intel MID platform detected, using MID PCI ops\n");
pci_mmcfg_late_init();
- pcibios_enable_irq = mrst_pci_irq_enable;
- pci_root_ops = pci_mrst_ops;
+ pcibios_enable_irq = intel_mid_pci_irq_enable;
+ pci_root_ops = intel_mid_pci_ops;
pci_soc_mode = 1;
/* Continue with standard init */
return 1;
diff --git a/arch/x86/platform/intel-mid/early_printk_intel_mid.c b/arch/x86/platform/intel-mid/early_printk_intel_mid.c
index 7c56e70..4f702f5 100644
--- a/arch/x86/platform/intel-mid/early_printk_intel_mid.c
+++ b/arch/x86/platform/intel-mid/early_printk_intel_mid.c
@@ -152,7 +152,7 @@ void mrst_early_console_init(void)
spi0_cdiv = ((*pclk_spi0) & 0xe00) >> 9;
freq = 100000000 / (spi0_cdiv + 1);

- if (mrst_identify_cpu() == MRST_CPU_CHIP_PENWELL)
+ if (intel_mid_identify_cpu() == INTEL_MID_CPU_CHIP_PENWELL)
mrst_spi_paddr = MRST_REGBASE_SPI1;

pspi = (void *)set_fixmap_offset_nocache(FIX_EARLYCON_MEM_BASE,
diff --git a/arch/x86/platform/intel-mid/intel-mid.c b/arch/x86/platform/intel-mid/intel-mid.c
index ef1d6c1..38071c1 100644
--- a/arch/x86/platform/intel-mid/intel-mid.c
+++ b/arch/x86/platform/intel-mid/intel-mid.c
@@ -11,7 +11,7 @@
* of the License.
*/

-#define pr_fmt(fmt) "mrst: " fmt
+#define pr_fmt(fmt) "intel_mid: " fmt

#include <linux/init.h>
#include <linux/kernel.h>
@@ -47,7 +47,7 @@

/*
* the clockevent devices on Moorestown/Medfield can be APBT or LAPIC clock,
- * cmdline option x86_mrst_timer can be used to override the configuration
+ * cmdline option x86_intel_mid_timer can be used to override the configuration
* to prefer one or the other.
* at runtime, there are basically three timer configurations:
* 1. per cpu apbt clock only
@@ -66,12 +66,12 @@
* lapic (always-on,ARAT) ------ 150
*/

-__cpuinitdata enum mrst_timer_options mrst_timer_options;
+__cpuinitdata enum intel_mid_timer_options intel_mid_timer_options;

static u32 sfi_mtimer_usage[SFI_MTMR_MAX_NUM];
static struct sfi_timer_table_entry sfi_mtimer_array[SFI_MTMR_MAX_NUM];
-enum mrst_cpu_type __mrst_cpu_chip;
-EXPORT_SYMBOL_GPL(__mrst_cpu_chip);
+enum intel_mid_cpu_type __intel_mid_cpu_chip;
+EXPORT_SYMBOL_GPL(__intel_mid_cpu_chip);

int sfi_mtimer_num;

@@ -79,11 +79,11 @@ struct sfi_rtc_table_entry sfi_mrtc_array[SFI_MRTC_MAX];
EXPORT_SYMBOL_GPL(sfi_mrtc_array);
int sfi_mrtc_num;

-static void mrst_power_off(void)
+static void intel_mid_power_off(void)
{
}

-static void mrst_reboot(void)
+static void intel_mid_reboot(void)
{
intel_scu_ipc_simple_command(IPCMSG_COLD_BOOT, 0);
}
@@ -196,7 +196,7 @@ int __init sfi_parse_mrtc(struct sfi_table_header *table)
return 0;
}

-static unsigned long __init mrst_calibrate_tsc(void)
+static unsigned long __init intel_mid_calibrate_tsc(void)
{
unsigned long fast_calibrate;
u32 lo, hi, ratio, fsb;
@@ -227,13 +227,13 @@ static unsigned long __init mrst_calibrate_tsc(void)
return 0;
}

-static void __init mrst_time_init(void)
+static void __init intel_mid_time_init(void)
{
sfi_table_parse(SFI_SIG_MTMR, NULL, NULL, sfi_parse_mtmr);
- switch (mrst_timer_options) {
- case MRST_TIMER_APBT_ONLY:
+ switch (intel_mid_timer_options) {
+ case INTEL_MID_TIMER_APBT_ONLY:
break;
- case MRST_TIMER_LAPIC_APBT:
+ case INTEL_MID_TIMER_LAPIC_APBT:
x86_init.timers.setup_percpu_clockev = setup_boot_APIC_clock;
x86_cpuinit.setup_percpu_clockev = setup_secondary_APIC_clock;
break;
@@ -249,19 +249,19 @@ static void __init mrst_time_init(void)
apbt_time_init();
}

-static void __cpuinit mrst_arch_setup(void)
+static void __cpuinit intel_mid_arch_setup(void)
{
if (boot_cpu_data.x86 == 6 && boot_cpu_data.x86_model == 0x27)
- __mrst_cpu_chip = MRST_CPU_CHIP_PENWELL;
+ __intel_mid_cpu_chip = INTEL_MID_CPU_CHIP_PENWELL;
else {
pr_err("Unknown Intel MID CPU (%d:%d), default to Penwell\n",
boot_cpu_data.x86, boot_cpu_data.x86_model);
- __mrst_cpu_chip = MRST_CPU_CHIP_PENWELL;
+ __intel_mid_cpu_chip = INTEL_MID_CPU_CHIP_PENWELL;
}
}

/* MID systems don't have i8042 controller */
-static int mrst_i8042_detect(void)
+static int intel_mid_i8042_detect(void)
{
return 0;
}
@@ -272,7 +272,7 @@ static int mrst_i8042_detect(void)
* watchdog or lock debug. Reading io port 0x61 results in 0xff which
* misled NMI handler.
*/
-static unsigned char mrst_get_nmi_reason(void)
+static unsigned char intel_mid_get_nmi_reason(void)
{
return 0;
}
@@ -281,33 +281,32 @@ static unsigned char mrst_get_nmi_reason(void)
* Moorestown specific x86_init function overrides and early setup
* calls.
*/
-void __init x86_mrst_early_setup(void)
+void __init x86_intel_mid_early_setup(void)
{
x86_init.resources.probe_roms = x86_init_noop;
x86_init.resources.reserve_resources = x86_init_noop;

- x86_init.timers.timer_init = mrst_time_init;
+ x86_init.timers.timer_init = intel_mid_time_init;
x86_init.timers.setup_percpu_clockev = x86_init_noop;

x86_init.irqs.pre_vector_init = x86_init_noop;

- x86_init.oem.arch_setup = mrst_arch_setup;
+ x86_init.oem.arch_setup = intel_mid_arch_setup;

x86_cpuinit.setup_percpu_clockev = apbt_setup_secondary_clock;

- x86_platform.calibrate_tsc = mrst_calibrate_tsc;
- x86_platform.i8042_detect = mrst_i8042_detect;
- x86_init.timers.wallclock_init = mrst_rtc_init;
- x86_platform.get_nmi_reason = mrst_get_nmi_reason;
+ x86_platform.calibrate_tsc = intel_mid_calibrate_tsc;
+ x86_platform.i8042_detect = intel_mid_i8042_detect;
+ x86_init.timers.wallclock_init = intel_mid_rtc_init;
+ x86_platform.get_nmi_reason = intel_mid_get_nmi_reason;

- x86_init.pci.init = pci_mrst_init;
+ x86_init.pci.init = intel_mid_pci_init;
x86_init.pci.fixup_irqs = x86_init_noop;

legacy_pic = &null_legacy_pic;

- /* Moorestown specific power_off/restart method */
- pm_power_off = mrst_power_off;
- machine_ops.emergency_restart = mrst_reboot;
+ pm_power_off = intel_mid_power_off;
+ machine_ops.emergency_restart = intel_mid_reboot;

/* Avoid searching for BIOS MP tables */
x86_init.mpparse.find_smp_config = x86_init_noop;
@@ -319,24 +318,24 @@ void __init x86_mrst_early_setup(void)
* if user does not want to use per CPU apb timer, just give it a lower rating
* than local apic timer and skip the late per cpu timer init.
*/
-static inline int __init setup_x86_mrst_timer(char *arg)
+static inline int __init setup_x86_intel_mid_timer(char *arg)
{
if (!arg)
return -EINVAL;

if (strcmp("apbt_only", arg) == 0)
- mrst_timer_options = MRST_TIMER_APBT_ONLY;
+ intel_mid_timer_options = INTEL_MID_TIMER_APBT_ONLY;
else if (strcmp("lapic_and_apbt", arg) == 0)
- mrst_timer_options = MRST_TIMER_LAPIC_APBT;
+ intel_mid_timer_options = INTEL_MID_TIMER_LAPIC_APBT;
else {
- pr_warn("X86 MRST timer option %s not recognised"
- " use x86_mrst_timer=apbt_only or lapic_and_apbt\n",
+ pr_warn("X86 INTEL_MID timer option %s not recognised"
+ " use x86_intel_mid_timer=apbt_only or lapic_and_apbt\n",
arg);
return -EINVAL;
}
return 0;
}
-__setup("x86_mrst_timer=", setup_x86_mrst_timer);
+__setup("x86_intel_mid_timer=", setup_x86_intel_mid_timer);

/*
* Parsing GPIO table first, since the DEVS table will need this table
@@ -400,7 +399,7 @@ struct devs_id {
};

/* the offset for the mapping of global gpio pin to irq */
-#define MRST_IRQ_OFFSET 0x100
+#define INTEL_MID_IRQ_OFFSET 0x100

static void __init *pmic_gpio_platform_data(void *info)
{
@@ -410,7 +409,7 @@ static void __init *pmic_gpio_platform_data(void *info)
if (gpio_base == -1)
gpio_base = 64;
pmic_gpio_pdata.gpio_base = gpio_base;
- pmic_gpio_pdata.irq_base = gpio_base + MRST_IRQ_OFFSET;
+ pmic_gpio_pdata.irq_base = gpio_base + INTEL_MID_IRQ_OFFSET;
pmic_gpio_pdata.gpiointr = 0xffffeff8;

return &pmic_gpio_pdata;
@@ -424,7 +423,7 @@ static void __init *max3111_platform_data(void *info)
spi_info->mode = SPI_MODE_0;
if (intr == -1)
return NULL;
- spi_info->irq = intr + MRST_IRQ_OFFSET;
+ spi_info->irq = intr + INTEL_MID_IRQ_OFFSET;
return NULL;
}

@@ -464,8 +463,8 @@ static void __init *max7315_platform_data(void *info)
return NULL;
max7315->gpio_base = gpio_base;
if (intr != -1) {
- i2c_info->irq = intr + MRST_IRQ_OFFSET;
- max7315->irq_base = gpio_base + MRST_IRQ_OFFSET;
+ i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET;
+ max7315->irq_base = gpio_base + INTEL_MID_IRQ_OFFSET;
} else {
i2c_info->irq = -1;
max7315->irq_base = -1;
@@ -492,8 +491,8 @@ static void *tca6416_platform_data(void *info)
return NULL;
tca6416.gpio_base = gpio_base;
if (intr != -1) {
- i2c_info->irq = intr + MRST_IRQ_OFFSET;
- tca6416.irq_base = gpio_base + MRST_IRQ_OFFSET;
+ i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET;
+ tca6416.irq_base = gpio_base + INTEL_MID_IRQ_OFFSET;
} else {
i2c_info->irq = -1;
tca6416.irq_base = -1;
@@ -509,7 +508,7 @@ static void *mpu3050_platform_data(void *info)
if (intr == -1)
return NULL;

- i2c_info->irq = intr + MRST_IRQ_OFFSET;
+ i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET;
return NULL;
}

@@ -523,8 +522,8 @@ static void __init *emc1403_platform_data(void *info)
if (intr == -1 || intr2nd == -1)
return NULL;

- i2c_info->irq = intr + MRST_IRQ_OFFSET;
- intr2nd_pdata = intr2nd + MRST_IRQ_OFFSET;
+ i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET;
+ intr2nd_pdata = intr2nd + INTEL_MID_IRQ_OFFSET;

return &intr2nd_pdata;
}
@@ -539,8 +538,8 @@ static void __init *lis331dl_platform_data(void *info)
if (intr == -1 || intr2nd == -1)
return NULL;

- i2c_info->irq = intr + MRST_IRQ_OFFSET;
- intr2nd_pdata = intr2nd + MRST_IRQ_OFFSET;
+ i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET;
+ intr2nd_pdata = intr2nd + INTEL_MID_IRQ_OFFSET;

return &intr2nd_pdata;
}
@@ -570,9 +569,9 @@ static struct platform_device msic_device = {
.resource = msic_resources,
};

-static inline bool mrst_has_msic(void)
+static inline bool intel_mid_has_msic(void)
{
- return mrst_identify_cpu() == MRST_CPU_CHIP_PENWELL;
+ return intel_mid_identify_cpu() == INTEL_MID_CPU_CHIP_PENWELL;
}

static int msic_scu_status_change(struct notifier_block *nb,
@@ -596,7 +595,7 @@ static int __init msic_init(void)
* We need to be sure that the SCU IPC is ready before MSIC device
* can be registered.
*/
- if (mrst_has_msic())
+ if (intel_mid_has_msic())
intel_scu_notifier_add(&msic_scu_notifier);

return 0;
@@ -851,7 +850,7 @@ static void __init sfi_handle_ipc_dev(struct sfi_device_table_entry *entry)
* On Medfield the platform device creation is handled by the MSIC
* MFD driver so we don't need to do it here.
*/
- if (mrst_has_msic())
+ if (intel_mid_has_msic())
return;

pdev = platform_device_alloc(entry->name, 0);
@@ -984,13 +983,13 @@ static int __init sfi_parse_devs(struct sfi_table_header *table)
return 0;
}

-static int __init mrst_platform_init(void)
+static int __init intel_mid_platform_init(void)
{
sfi_table_parse(SFI_SIG_GPIO, NULL, NULL, sfi_parse_gpio);
sfi_table_parse(SFI_SIG_DEVS, NULL, NULL, sfi_parse_devs);
return 0;
}
-arch_initcall(mrst_platform_init);
+arch_initcall(intel_mid_platform_init);

/*
* we will search these buttons in SFI GPIO table (by name)
@@ -1010,7 +1009,7 @@ static struct gpio_keys_button gpio_button[] = {
{SW_KEYPAD_SLIDE, -1, 1, "MagSw2", EV_SW, 0, 20},
};

-static struct gpio_keys_platform_data mrst_gpio_keys = {
+static struct gpio_keys_platform_data intel_mid_gpio_keys = {
.buttons = gpio_button,
.rep = 1,
.nbuttons = -1, /* will fill it after search */
@@ -1020,7 +1019,7 @@ static struct platform_device pb_device = {
.name = "gpio-keys",
.id = -1,
.dev = {
- .platform_data = &mrst_gpio_keys,
+ .platform_data = &intel_mid_gpio_keys,
},
};

@@ -1047,7 +1046,7 @@ static int __init pb_keys_init(void)
}

if (good) {
- mrst_gpio_keys.nbuttons = good;
+ intel_mid_gpio_keys.nbuttons = good;
return platform_device_register(&pb_device);
}
return 0;
diff --git a/arch/x86/platform/intel-mid/intel_mid_vrtc.c b/arch/x86/platform/intel-mid/intel_mid_vrtc.c
index c2a5f48..e13a89b 100644
--- a/arch/x86/platform/intel-mid/intel_mid_vrtc.c
+++ b/arch/x86/platform/intel-mid/intel_mid_vrtc.c
@@ -115,7 +115,7 @@ int vrtc_set_mmss(unsigned long nowtime)
return retval;
}

-void __init mrst_rtc_init(void)
+void __init intel_mid_rtc_init(void)
{
unsigned long vrtc_paddr;

@@ -153,10 +153,10 @@ static struct platform_device vrtc_device = {
};

/* Register the RTC device if appropriate */
-static int __init mrst_device_create(void)
+static int __init intel_mid_device_create(void)
{
/* No Moorestown, no device */
- if (!mrst_identify_cpu())
+ if (!intel_mid_identify_cpu())
return -ENODEV;
/* No timer, no device */
if (!sfi_mrtc_num)
@@ -173,4 +173,4 @@ static int __init mrst_device_create(void)
return platform_device_register(&vrtc_device);
}

-module_init(mrst_device_create);
+module_init(intel_mid_device_create);
diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c
index 5f8f6c9..d654f83 100644
--- a/drivers/platform/x86/intel_scu_ipc.c
+++ b/drivers/platform/x86/intel_scu_ipc.c
@@ -579,7 +579,7 @@ static struct pci_driver ipc_driver = {

static int __init intel_scu_ipc_init(void)
{
- platform = mrst_identify_cpu();
+ platform = intel_mid_identify_cpu();
if (platform == 0)
return -ENODEV;
return pci_register_driver(&ipc_driver);
diff --git a/drivers/watchdog/intel_scu_watchdog.c b/drivers/watchdog/intel_scu_watchdog.c
index 07964d8..8ced256 100644
--- a/drivers/watchdog/intel_scu_watchdog.c
+++ b/drivers/watchdog/intel_scu_watchdog.c
@@ -445,7 +445,7 @@ static int __init intel_scu_watchdog_init(void)
*
* If it isn't an intel MID device then it doesn't have this watchdog
*/
- if (!mrst_identify_cpu())
+ if (!intel_mid_identify_cpu())
return -ENODEV;

/* Check boot parameters to verify that their initial values */
--
1.7.9.5

2013-05-30 03:05:55

by Kuppuswamy, Sathyanarayanan

Subject: [PATCH v1 04/13] intel_mid: Renamed *mrst* to *intel_mid*

Following files contains code that is common to all intel mid
soc's. So renamed them as below.

mrst/mrst.c -> intel-mid/intel-mid.c
mrst/vrtc.c -> intel-mid/intel_mid_vrtc.c
mrst/early_printk_mrst.c -> intel-mid/intel_mid_vrtc.c
pci/mrst.c -> pci/intel_mid_pci.c

Also, renamed the corresponding header files and made changes
to the driver files that included these header files.

To ensure that there are no functional changes, I have compared
the objdump of renamed files before and after rename and found
that the only difference is file name change.

Change-Id: I33f23d7d662eda6e33ecead26fb3fe453ab66345
Signed-off-by: Sathyanarayanan Kuppuswamy <[email protected]>
---
arch/x86/include/asm/{mrst.h => intel-mid.h} | 8 ++++----
.../include/asm/{mrst-vrtc.h => intel_mid_vrtc.h} | 4 ++--
arch/x86/kernel/apb_timer.c | 2 +-
arch/x86/kernel/early_printk.c | 2 +-
arch/x86/kernel/rtc.c | 2 +-
arch/x86/pci/Makefile | 2 +-
arch/x86/pci/{mrst.c => intel_mid_pci.c} | 2 +-
arch/x86/platform/Makefile | 2 +-
arch/x86/platform/intel-mid/Makefile | 3 +++
.../early_printk_intel_mid.c} | 4 ++--
.../{mrst/mrst.c => intel-mid/intel-mid.c} | 11 ++++++-----
.../{mrst/vrtc.c => intel-mid/intel_mid_vrtc.c} | 6 +++---
arch/x86/platform/mrst/Makefile | 3 ---
drivers/gpu/drm/gma500/mdfld_dsi_output.h | 2 +-
drivers/gpu/drm/gma500/oaktrail_device.c | 2 +-
drivers/gpu/drm/gma500/oaktrail_lvds.c | 2 +-
drivers/platform/x86/intel_scu_ipc.c | 2 +-
drivers/rtc/rtc-mrst.c | 4 ++--
drivers/watchdog/intel_scu_watchdog.c | 2 +-
19 files changed, 33 insertions(+), 32 deletions(-)
rename arch/x86/include/asm/{mrst.h => intel-mid.h} (93%)
rename arch/x86/include/asm/{mrst-vrtc.h => intel_mid_vrtc.h} (81%)
rename arch/x86/pci/{mrst.c => intel_mid_pci.c} (99%)
create mode 100644 arch/x86/platform/intel-mid/Makefile
rename arch/x86/platform/{mrst/early_printk_mrst.c => intel-mid/early_printk_intel_mid.c} (98%)
rename arch/x86/platform/{mrst/mrst.c => intel-mid/intel-mid.c} (99%)
rename arch/x86/platform/{mrst/vrtc.c => intel-mid/intel_mid_vrtc.c} (96%)
delete mode 100644 arch/x86/platform/mrst/Makefile

diff --git a/arch/x86/include/asm/mrst.h b/arch/x86/include/asm/intel-mid.h
similarity index 93%
rename from arch/x86/include/asm/mrst.h
rename to arch/x86/include/asm/intel-mid.h
index fc18bf3..cc79a4f 100644
--- a/arch/x86/include/asm/mrst.h
+++ b/arch/x86/include/asm/intel-mid.h
@@ -1,5 +1,5 @@
/*
- * mrst.h: Intel Moorestown platform specific setup code
+ * intel-mid.h: Intel MID specific setup code
*
* (C) Copyright 2009 Intel Corporation
*
@@ -8,8 +8,8 @@
* as published by the Free Software Foundation; version 2
* of the License.
*/
-#ifndef _ASM_X86_MRST_H
-#define _ASM_X86_MRST_H
+#ifndef _ASM_X86_INTEL_MID_H
+#define _ASM_X86_INTEL_MID_H

#include <linux/sfi.h>

@@ -78,4 +78,4 @@ extern void intel_scu_devices_destroy(void);

extern void mrst_rtc_init(void);

-#endif /* _ASM_X86_MRST_H */
+#endif /* _ASM_X86_INTEL_MID_H */
diff --git a/arch/x86/include/asm/mrst-vrtc.h b/arch/x86/include/asm/intel_mid_vrtc.h
similarity index 81%
rename from arch/x86/include/asm/mrst-vrtc.h
rename to arch/x86/include/asm/intel_mid_vrtc.h
index 73668ab..11ababf 100644
--- a/arch/x86/include/asm/mrst-vrtc.h
+++ b/arch/x86/include/asm/intel_mid_vrtc.h
@@ -1,5 +1,5 @@
-#ifndef _MRST_VRTC_H
-#define _MRST_VRTC_H
+#ifndef _INTEL_MID_VRTC_H
+#define _INTEL_MID_VRTC_H

extern unsigned char vrtc_cmos_read(unsigned char reg);
extern void vrtc_cmos_write(unsigned char val, unsigned char reg);
diff --git a/arch/x86/kernel/apb_timer.c b/arch/x86/kernel/apb_timer.c
index c9876ef..9154836 100644
--- a/arch/x86/kernel/apb_timer.c
+++ b/arch/x86/kernel/apb_timer.c
@@ -40,7 +40,7 @@

#include <asm/fixmap.h>
#include <asm/apb_timer.h>
-#include <asm/mrst.h>
+#include <asm/intel-mid.h>
#include <asm/time.h>

#define APBT_CLOCKEVENT_RATING 110
diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c
index d15f575..38ca398 100644
--- a/arch/x86/kernel/early_printk.c
+++ b/arch/x86/kernel/early_printk.c
@@ -14,7 +14,7 @@
#include <xen/hvc-console.h>
#include <asm/pci-direct.h>
#include <asm/fixmap.h>
-#include <asm/mrst.h>
+#include <asm/intel-mid.h>
#include <asm/pgtable.h>
#include <linux/usb/ehci_def.h>

diff --git a/arch/x86/kernel/rtc.c b/arch/x86/kernel/rtc.c
index 198eb20..7a9ed8f 100644
--- a/arch/x86/kernel/rtc.c
+++ b/arch/x86/kernel/rtc.c
@@ -12,7 +12,7 @@
#include <asm/vsyscall.h>
#include <asm/x86_init.h>
#include <asm/time.h>
-#include <asm/mrst.h>
+#include <asm/intel-mid.h>
#include <asm/rtc.h>

#ifdef CONFIG_X86_32
diff --git a/arch/x86/pci/Makefile b/arch/x86/pci/Makefile
index ee0af58..e063eed 100644
--- a/arch/x86/pci/Makefile
+++ b/arch/x86/pci/Makefile
@@ -18,7 +18,7 @@ obj-$(CONFIG_X86_VISWS) += visws.o
obj-$(CONFIG_X86_NUMAQ) += numaq_32.o
obj-$(CONFIG_X86_NUMACHIP) += numachip.o

-obj-$(CONFIG_X86_INTEL_MID) += mrst.o
+obj-$(CONFIG_X86_INTEL_MID) += intel_mid_pci.o

obj-y += common.o early.o
obj-y += bus_numa.o
diff --git a/arch/x86/pci/mrst.c b/arch/x86/pci/intel_mid_pci.c
similarity index 99%
rename from arch/x86/pci/mrst.c
rename to arch/x86/pci/intel_mid_pci.c
index d5d222e..5001003 100644
--- a/arch/x86/pci/mrst.c
+++ b/arch/x86/pci/intel_mid_pci.c
@@ -1,5 +1,5 @@
/*
- * Moorestown PCI support
+ * Intel MID PCI support
* Copyright (c) 2008 Intel Corporation
* Jesse Barnes <[email protected]>
*
diff --git a/arch/x86/platform/Makefile b/arch/x86/platform/Makefile
index 01e0231..20342d4 100644
--- a/arch/x86/platform/Makefile
+++ b/arch/x86/platform/Makefile
@@ -4,7 +4,7 @@ obj-y += efi/
obj-y += geode/
obj-y += goldfish/
obj-y += iris/
-obj-y += mrst/
+obj-y += intel-mid/
obj-y += olpc/
obj-y += scx200/
obj-y += sfi/
diff --git a/arch/x86/platform/intel-mid/Makefile b/arch/x86/platform/intel-mid/Makefile
new file mode 100644
index 0000000..de29635
--- /dev/null
+++ b/arch/x86/platform/intel-mid/Makefile
@@ -0,0 +1,3 @@
+obj-$(CONFIG_X86_INTEL_MID) += intel-mid.o
+obj-$(CONFIG_X86_INTEL_MID) += intel_mid_vrtc.o
+obj-$(CONFIG_EARLY_PRINTK_INTEL_MID) += early_printk_intel_mid.o
diff --git a/arch/x86/platform/mrst/early_printk_mrst.c b/arch/x86/platform/intel-mid/early_printk_intel_mid.c
similarity index 98%
rename from arch/x86/platform/mrst/early_printk_mrst.c
rename to arch/x86/platform/intel-mid/early_printk_intel_mid.c
index 39ecc27..7c56e70 100644
--- a/arch/x86/platform/mrst/early_printk_mrst.c
+++ b/arch/x86/platform/intel-mid/early_printk_intel_mid.c
@@ -1,5 +1,5 @@
/*
- * early_printk_mrst.c - early consoles for Intel MID platforms
+ * early_printk_intel_mid.c - early consoles for Intel MID platforms
*
* Copyright (c) 2008-2010, Intel Corporation
*
@@ -27,7 +27,7 @@

#include <asm/fixmap.h>
#include <asm/pgtable.h>
-#include <asm/mrst.h>
+#include <asm/intel-mid.h>

#define MRST_SPI_TIMEOUT 0x200000
#define MRST_REGBASE_SPI0 0xff128000
diff --git a/arch/x86/platform/mrst/mrst.c b/arch/x86/platform/intel-mid/intel-mid.c
similarity index 99%
rename from arch/x86/platform/mrst/mrst.c
rename to arch/x86/platform/intel-mid/intel-mid.c
index 4784c33..ef1d6c1 100644
--- a/arch/x86/platform/mrst/mrst.c
+++ b/arch/x86/platform/intel-mid/intel-mid.c
@@ -1,8 +1,9 @@
/*
- * mrst.c: Intel Moorestown platform specific setup code
+ * intel-mid.c: Intel MID platform setup code
*
- * (C) Copyright 2008 Intel Corporation
+ * (C) Copyright 2008, 2012 Intel Corporation
* Author: Jacob Pan ([email protected])
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@@ -36,8 +37,8 @@
#include <asm/hw_irq.h>
#include <asm/apic.h>
#include <asm/io_apic.h>
-#include <asm/mrst.h>
-#include <asm/mrst-vrtc.h>
+#include <asm/intel-mid.h>
+#include <asm/intel_mid_vrtc.h>
#include <asm/io.h>
#include <asm/i8259.h>
#include <asm/intel_scu_ipc.h>
@@ -219,7 +220,7 @@ static unsigned long __init mrst_calibrate_tsc(void)
lapic_timer_frequency = fsb * 1000 / HZ;
/* mark tsc clocksource as reliable */
set_cpu_cap(&boot_cpu_data, X86_FEATURE_TSC_RELIABLE);
-
+
if (fast_calibrate)
return fast_calibrate;

diff --git a/arch/x86/platform/mrst/vrtc.c b/arch/x86/platform/intel-mid/intel_mid_vrtc.c
similarity index 96%
rename from arch/x86/platform/mrst/vrtc.c
rename to arch/x86/platform/intel-mid/intel_mid_vrtc.c
index 05191dc..c2a5f48 100644
--- a/arch/x86/platform/mrst/vrtc.c
+++ b/arch/x86/platform/intel-mid/intel_mid_vrtc.c
@@ -1,5 +1,5 @@
/*
- * vrtc.c: Driver for virtual RTC device on Intel MID platform
+ * intel_mid_vrtc.c: Driver for virtual RTC device on Intel MID platform
*
* (C) Copyright 2009 Intel Corporation
*
@@ -23,8 +23,8 @@
#include <linux/sfi.h>
#include <linux/platform_device.h>

-#include <asm/mrst.h>
-#include <asm/mrst-vrtc.h>
+#include <asm/intel-mid.h>
+#include <asm/intel_mid_vrtc.h>
#include <asm/time.h>
#include <asm/fixmap.h>

diff --git a/arch/x86/platform/mrst/Makefile b/arch/x86/platform/mrst/Makefile
deleted file mode 100644
index af1da7e..0000000
--- a/arch/x86/platform/mrst/Makefile
+++ /dev/null
@@ -1,3 +0,0 @@
-obj-$(CONFIG_X86_INTEL_MID) += mrst.o
-obj-$(CONFIG_X86_INTEL_MID) += vrtc.o
-obj-$(CONFIG_EARLY_PRINTK_INTEL_MID) += early_printk_mrst.o
diff --git a/drivers/gpu/drm/gma500/mdfld_dsi_output.h b/drivers/gpu/drm/gma500/mdfld_dsi_output.h
index 36eb074..61cea74 100644
--- a/drivers/gpu/drm/gma500/mdfld_dsi_output.h
+++ b/drivers/gpu/drm/gma500/mdfld_dsi_output.h
@@ -39,7 +39,7 @@
#include "psb_intel_reg.h"
#include "mdfld_output.h"

-#include <asm/mrst.h>
+#include <asm/intel-mid.h>

#define FLD_MASK(start, end) (((1 << ((start) - (end) + 1)) - 1) << (end))
#define FLD_VAL(val, start, end) (((val) << (end)) & FLD_MASK(start, end))
diff --git a/drivers/gpu/drm/gma500/oaktrail_device.c b/drivers/gpu/drm/gma500/oaktrail_device.c
index 08747fd..7a9ce00 100644
--- a/drivers/gpu/drm/gma500/oaktrail_device.c
+++ b/drivers/gpu/drm/gma500/oaktrail_device.c
@@ -26,7 +26,7 @@
#include "psb_drv.h"
#include "psb_reg.h"
#include "psb_intel_reg.h"
-#include <asm/mrst.h>
+#include <asm/intel-mid.h>
#include <asm/intel_scu_ipc.h>
#include "mid_bios.h"
#include "intel_bios.h"
diff --git a/drivers/gpu/drm/gma500/oaktrail_lvds.c b/drivers/gpu/drm/gma500/oaktrail_lvds.c
index 325013a..d011e91 100644
--- a/drivers/gpu/drm/gma500/oaktrail_lvds.c
+++ b/drivers/gpu/drm/gma500/oaktrail_lvds.c
@@ -22,7 +22,7 @@

#include <linux/i2c.h>
#include <drm/drmP.h>
-#include <asm/mrst.h>
+#include <asm/intel-mid.h>

#include "intel_bios.h"
#include "psb_drv.h"
diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c
index 9215ed7..5f8f6c9 100644
--- a/drivers/platform/x86/intel_scu_ipc.c
+++ b/drivers/platform/x86/intel_scu_ipc.c
@@ -25,7 +25,7 @@
#include <linux/interrupt.h>
#include <linux/sfi.h>
#include <linux/module.h>
-#include <asm/mrst.h>
+#include <asm/intel-mid.h>
#include <asm/intel_scu_ipc.h>

/* IPC defines the following message types */
diff --git a/drivers/rtc/rtc-mrst.c b/drivers/rtc/rtc-mrst.c
index 578baf9..315209d9 100644
--- a/drivers/rtc/rtc-mrst.c
+++ b/drivers/rtc/rtc-mrst.c
@@ -38,8 +38,8 @@

#include <asm-generic/rtc.h>
#include <asm/intel_scu_ipc.h>
-#include <asm/mrst.h>
-#include <asm/mrst-vrtc.h>
+#include <asm/intel-mid.h>
+#include <asm/intel_mid_vrtc.h>

struct mrst_rtc {
struct rtc_device *rtc;
diff --git a/drivers/watchdog/intel_scu_watchdog.c b/drivers/watchdog/intel_scu_watchdog.c
index 9dda2d0..07964d8 100644
--- a/drivers/watchdog/intel_scu_watchdog.c
+++ b/drivers/watchdog/intel_scu_watchdog.c
@@ -48,7 +48,7 @@
#include <linux/atomic.h>
#include <asm/intel_scu_ipc.h>
#include <asm/apb_timer.h>
-#include <asm/mrst.h>
+#include <asm/intel-mid.h>

#include "intel_scu_watchdog.h"

--
1.7.9.5

2013-05-30 03:06:05

by Kuppuswamy, Sathyanarayanan

Subject: [PATCH v1 03/13] mrst: Fixed checkpatch warnings

Fixed checkpatch warnings in mrst related files.

Change-Id: I4aa558a1b1c261444ae6b63b0da6273923d0afaa
Signed-off-by: Sathyanarayanan Kuppuswamy <[email protected]>
---
arch/x86/pci/mrst.c | 2 +-
arch/x86/platform/mrst/mrst.c | 2 +-
arch/x86/platform/mrst/vrtc.c | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/pci/mrst.c b/arch/x86/pci/mrst.c
index 66a672e..d5d222e 100644
--- a/arch/x86/pci/mrst.c
+++ b/arch/x86/pci/mrst.c
@@ -43,7 +43,7 @@
#define PCI_FIXED_BAR_4_SIZE 0x14
#define PCI_FIXED_BAR_5_SIZE 0x1c

-static int pci_soc_mode = 0;
+static int pci_soc_mode;

/**
* fixed_bar_cap - return the offset of the fixed BAR cap if found
diff --git a/arch/x86/platform/mrst/mrst.c b/arch/x86/platform/mrst/mrst.c
index 58cdfd1..4784c33 100644
--- a/arch/x86/platform/mrst/mrst.c
+++ b/arch/x86/platform/mrst/mrst.c
@@ -977,7 +977,7 @@ static int __init sfi_parse_devs(struct sfi_table_header *table)
case SFI_DEV_TYPE_UART:
case SFI_DEV_TYPE_HSI:
default:
- ;
+ break;
}
}
return 0;
diff --git a/arch/x86/platform/mrst/vrtc.c b/arch/x86/platform/mrst/vrtc.c
index d735deb..05191dc 100644
--- a/arch/x86/platform/mrst/vrtc.c
+++ b/arch/x86/platform/mrst/vrtc.c
@@ -109,7 +109,7 @@ int vrtc_set_mmss(unsigned long nowtime)
spin_unlock_irqrestore(&rtc_lock, flags);
} else {
pr_err("%s: Invalid vRTC value: write of %lx to vRTC failed\n",
- __FUNCTION__, nowtime);
+ __func__, nowtime);
retval = -EINVAL;
}
return retval;
--
1.7.9.5

2013-05-30 03:06:11

by Kuppuswamy, Sathyanarayanan

Subject: [PATCH v1 08/13] intel_mid: Added custom handler for ipc devices

Added a custom handler for medfield based ipc devices and
moved devs_id structure defintion to header file.

Change-Id: Ib34d12e0f70da9b0890972d286072369bebf349d
Signed-off-by: Sathyanarayanan Kuppuswamy <[email protected]>
---
arch/x86/include/asm/intel-mid.h | 15 ++++++
arch/x86/platform/intel-mid/intel-mid.c | 87 ++++++++++++++++++++-----------
2 files changed, 71 insertions(+), 31 deletions(-)

diff --git a/arch/x86/include/asm/intel-mid.h b/arch/x86/include/asm/intel-mid.h
index beb7a5f..ad236ae 100644
--- a/arch/x86/include/asm/intel-mid.h
+++ b/arch/x86/include/asm/intel-mid.h
@@ -19,6 +19,21 @@ extern int sfi_mrtc_num;
extern struct sfi_rtc_table_entry sfi_mrtc_array[];

/*
+ * Here defines the array of devices platform data that IAFW would export
+ * through SFI "DEVS" table, we use name and type to match the device and
+ * its platform data.
+ */
+struct devs_id {
+ char name[SFI_NAME_LEN + 1];
+ u8 type;
+ u8 delay;
+ void *(*get_platform_data)(void *info);
+ /* Custom handler for devices */
+ void (*device_handler)(struct sfi_device_table_entry *pentry,
+ struct devs_id *dev);
+};
+
+/*
* Medfield is the follow-up of Moorestown, it combines two chip solution into
* one. Other than that it also added always-on and constant tsc and lapic
* timers. Medfield is the platform name, and the chip name is called Penwell
diff --git a/arch/x86/platform/intel-mid/intel-mid.c b/arch/x86/platform/intel-mid/intel-mid.c
index f3abd75..1018ee8 100644
--- a/arch/x86/platform/intel-mid/intel-mid.c
+++ b/arch/x86/platform/intel-mid/intel-mid.c
@@ -78,6 +78,8 @@ int sfi_mtimer_num;
struct sfi_rtc_table_entry sfi_mrtc_array[SFI_MRTC_MAX];
EXPORT_SYMBOL_GPL(sfi_mrtc_array);
int sfi_mrtc_num;
+static void __init ipc_device_handler(struct sfi_device_table_entry *pentry,
+ struct devs_id *dev);

static void intel_mid_power_off(void)
{
@@ -386,21 +388,6 @@ static int get_gpio_by_name(const char *name)
return -1;
}

-/*
- * Here defines the array of devices platform data that IAFW would export
- * through SFI "DEVS" table, we use name and type to match the device and
- * its platform data.
- */
-struct devs_id {
- char name[SFI_NAME_LEN + 1];
- u8 type;
- u8 delay;
- void *(*get_platform_data)(void *info);
- /* Custom handler for devices */
- void (*device_handler)(struct sfi_device_table_entry *pentry,
- struct devs_id *dev);
-};
-
/* the offset for the mapping of global gpio pin to irq */
#define INTEL_MID_IRQ_OFFSET 0x100

@@ -695,27 +682,32 @@ static void *tc35876x_platform_data(void *data)
static const struct devs_id __initconst device_ids[] = {
{"bma023", SFI_DEV_TYPE_I2C, 1, &no_platform_data, NULL},
{"pmic_gpio", SFI_DEV_TYPE_SPI, 1, &pmic_gpio_platform_data, NULL},
- {"pmic_gpio", SFI_DEV_TYPE_IPC, 1, &pmic_gpio_platform_data, NULL},
+ {"pmic_gpio", SFI_DEV_TYPE_IPC, 1, &pmic_gpio_platform_data,
+ &ipc_device_handler},
{"spi_max3111", SFI_DEV_TYPE_SPI, 0, &max3111_platform_data, NULL},
{"i2c_max7315", SFI_DEV_TYPE_I2C, 1, &max7315_platform_data, NULL},
{"i2c_max7315_2", SFI_DEV_TYPE_I2C, 1, &max7315_platform_data, NULL},
{"tca6416", SFI_DEV_TYPE_I2C, 1, &tca6416_platform_data, NULL},
{"emc1403", SFI_DEV_TYPE_I2C, 1, &emc1403_platform_data, NULL},
{"i2c_accel", SFI_DEV_TYPE_I2C, 0, &lis331dl_platform_data, NULL},
- {"pmic_audio", SFI_DEV_TYPE_IPC, 1, &no_platform_data, NULL},
+ {"pmic_audio", SFI_DEV_TYPE_IPC, 1, &no_platform_data,
+ &ipc_device_handler},
{"mpu3050", SFI_DEV_TYPE_I2C, 1, &mpu3050_platform_data, NULL},
{"i2c_disp_brig", SFI_DEV_TYPE_I2C, 0, &tc35876x_platform_data, NULL},

/* MSIC subdevices */
{"msic_battery", SFI_DEV_TYPE_IPC, 1, &msic_battery_platform_data,
- NULL},
- {"msic_gpio", SFI_DEV_TYPE_IPC, 1, &msic_gpio_platform_data, NULL},
- {"msic_audio", SFI_DEV_TYPE_IPC, 1, &msic_audio_platform_data, NULL},
+ &ipc_device_handler},
+ {"msic_gpio", SFI_DEV_TYPE_IPC, 1, &msic_gpio_platform_data,
+ &ipc_device_handler},
+ {"msic_audio", SFI_DEV_TYPE_IPC, 1, &msic_audio_platform_data,
+ &ipc_device_handler},
{"msic_power_btn", SFI_DEV_TYPE_IPC, 1, &msic_power_btn_platform_data,
- NULL},
- {"msic_ocd", SFI_DEV_TYPE_IPC, 1, &msic_ocd_platform_data, NULL},
+ &ipc_device_handler},
+ {"msic_ocd", SFI_DEV_TYPE_IPC, 1, &msic_ocd_platform_data,
+ &ipc_device_handler},
{"msic_thermal", SFI_DEV_TYPE_IPC, 1, &msic_thermal_platform_data,
- NULL},
+ &ipc_device_handler},
{},
};

@@ -846,13 +838,6 @@ static void __init sfi_handle_ipc_dev(struct sfi_device_table_entry *pentry,
pentry->name, pentry->irq);
pdata = dev->get_platform_data(pentry);

- /*
- * On Medfield the platform device creation is handled by the MSIC
- * MFD driver so we don't need to do it here.
- */
- if (intel_mid_has_msic())
- return;
-
pdev = platform_device_alloc(pentry->name, 0);
if (pdev == NULL) {
pr_err("out of memory for SFI platform device '%s'.\n",
@@ -862,7 +847,7 @@ static void __init sfi_handle_ipc_dev(struct sfi_device_table_entry *pentry,
install_irq_resource(pdev, pentry->irq);

pdev->dev.platform_data = pdata;
- intel_scu_device_register(pdev);
+ platform_device_add(pdev);
}

static void __init sfi_handle_spi_dev(struct sfi_device_table_entry *pentry,
@@ -917,6 +902,46 @@ static void __init sfi_handle_i2c_dev(struct sfi_device_table_entry *pentry,
i2c_register_board_info(pentry->host_num, &i2c_info, 1);
}

+static void __init ipc_device_handler(struct sfi_device_table_entry *pentry,
+ struct devs_id *dev)
+{
+ struct platform_device *pdev;
+ void *pdata = NULL;
+ static struct resource __initdata res = {
+ .name = "IRQ",
+ .flags = IORESOURCE_IRQ,
+ };
+
+ pr_debug("IPC bus, name = %16.16s, irq = 0x%2x\n",
+ pentry->name, pentry->irq);
+
+ /*
+ * We need to call platform init of IPC devices to fill misc_pdata
+ * structure. It will be used in msic_init for initialization.
+ */
+ if (dev != NULL)
+ pdata = dev->get_platform_data(pentry);
+
+ /*
+ * On Medfield the platform device creation is handled by the MSIC
+ * MFD driver so we don't need to do it here.
+ */
+ if (intel_mid_has_msic())
+ return;
+
+ pdev = platform_device_alloc(pentry->name, 0);
+ if (pdev == NULL) {
+ pr_err("out of memory for SFI platform device '%s'.\n",
+ pentry->name);
+ return;
+ }
+ res.start = pentry->irq;
+ platform_device_add_resources(pdev, &res, 1);
+
+ pdev->dev.platform_data = pdata;
+ intel_scu_device_register(pdev);
+}
+
static struct devs_id __init *get_device_id(u8 type, char *name)
{
struct devs_id *dev = device_ids;
--
1.7.9.5

2013-05-30 03:06:19

by Kuppuswamy, Sathyanarayanan

Subject: [PATCH v1 02/13] mrst: Fixed indentation issues

Fixed indentation issues reported by checkpatch script in
mrst related files.

Change-Id: I4deceed3ff2fc92bdb8118300f18eed963b9b988
Signed-off-by: Sathyanarayanan Kuppuswamy <[email protected]>
---
arch/x86/pci/mrst.c | 4 ++--
arch/x86/platform/mrst/early_printk_mrst.c | 3 ++-
arch/x86/platform/mrst/mrst.c | 24 +++++++++++++-----------
3 files changed, 17 insertions(+), 14 deletions(-)

diff --git a/arch/x86/pci/mrst.c b/arch/x86/pci/mrst.c
index a08cf1b..66a672e 100644
--- a/arch/x86/pci/mrst.c
+++ b/arch/x86/pci/mrst.c
@@ -251,8 +251,8 @@ static void pci_d3delay_fixup(struct pci_dev *dev)
{
/* PCI fixups are effectively decided compile time. If we have a dual
SoC/non-SoC kernel we don't want to mangle d3 on non SoC devices */
- if (!pci_soc_mode)
- return;
+ if (!pci_soc_mode)
+ return;
/* true pci devices in lincroft should allow type 1 access, the rest
* are langwell fake pci devices.
*/
diff --git a/arch/x86/platform/mrst/early_printk_mrst.c b/arch/x86/platform/mrst/early_printk_mrst.c
index 95880f7..39ecc27 100644
--- a/arch/x86/platform/mrst/early_printk_mrst.c
+++ b/arch/x86/platform/mrst/early_printk_mrst.c
@@ -219,7 +219,8 @@ static void early_mrst_spi_putc(char c)
}

/* Early SPI only uses polling mode */
-static void early_mrst_spi_write(struct console *con, const char *str, unsigned n)
+static void early_mrst_spi_write(struct console *con, const char *str,
+ unsigned n)
{
int i;

diff --git a/arch/x86/platform/mrst/mrst.c b/arch/x86/platform/mrst/mrst.c
index fbfbe36..58cdfd1 100644
--- a/arch/x86/platform/mrst/mrst.c
+++ b/arch/x86/platform/mrst/mrst.c
@@ -131,7 +131,7 @@ struct sfi_timer_table_entry *sfi_get_mtmr(int hint)
int i;
if (hint < sfi_mtimer_num) {
if (!sfi_mtimer_usage[hint]) {
- pr_debug("hint taken for timer %d irq %d\n",\
+ pr_debug("hint taken for timer %d irq %d\n",
hint, sfi_mtimer_array[hint].irq);
sfi_mtimer_usage[hint] = 1;
return &sfi_mtimer_array[hint];
@@ -679,14 +679,14 @@ static void *msic_thermal_platform_data(void *info)
/* tc35876x DSI-LVDS bridge chip and panel platform data */
static void *tc35876x_platform_data(void *data)
{
- static struct tc35876x_platform_data pdata;
+ static struct tc35876x_platform_data pdata;

- /* gpio pins set to -1 will not be used by the driver */
- pdata.gpio_bridge_reset = get_gpio_by_name("LCMB_RXEN");
- pdata.gpio_panel_bl_en = get_gpio_by_name("6S6P_BL_EN");
- pdata.gpio_panel_vadd = get_gpio_by_name("EN_VREG_LCD_V3P3");
+ /* gpio pins set to -1 will not be used by the driver */
+ pdata.gpio_bridge_reset = get_gpio_by_name("LCMB_RXEN");
+ pdata.gpio_panel_bl_en = get_gpio_by_name("6S6P_BL_EN");
+ pdata.gpio_panel_vadd = get_gpio_by_name("EN_VREG_LCD_V3P3");

- return &pdata;
+ return &pdata;
}

static const struct devs_id __initconst device_ids[] = {
@@ -729,7 +729,7 @@ static int i2c_next_dev;

static void __init intel_scu_device_register(struct platform_device *pdev)
{
- if(ipc_next_dev == MAX_IPCDEVS)
+ if (ipc_next_dev == MAX_IPCDEVS)
pr_err("too many SCU IPC devices");
else
ipc_devs[ipc_next_dev++] = pdev;
@@ -872,7 +872,8 @@ static void __init sfi_handle_spi_dev(struct spi_board_info *spi_info)

while (dev->name[0]) {
if (dev->type == SFI_DEV_TYPE_SPI &&
- !strncmp(dev->name, spi_info->modalias, SFI_NAME_LEN)) {
+ !strncmp(dev->name, spi_info->modalias,
+ SFI_NAME_LEN)) {
pdata = dev->get_platform_data(spi_info);
break;
}
@@ -904,7 +905,7 @@ static void __init sfi_handle_i2c_dev(int bus, struct i2c_board_info *i2c_info)
intel_scu_i2c_device_register(bus, i2c_info);
else
i2c_register_board_info(bus, i2c_info, 1);
- }
+}


static int __init sfi_parse_devs(struct sfi_table_header *table)
@@ -1034,7 +1035,8 @@ static int __init pb_keys_init(void)
num = sizeof(gpio_button) / sizeof(struct gpio_keys_button);
for (i = 0; i < num; i++) {
gb[i].gpio = get_gpio_by_name(gb[i].desc);
- pr_debug("info[%2d]: name = %s, gpio = %d\n", i, gb[i].desc, gb[i].gpio);
+ pr_debug("info[%2d]: name = %s, gpio = %d\n", i, gb[i].desc,
+ gb[i].gpio);
if (gb[i].gpio == -1)
continue;

--
1.7.9.5

2013-05-30 03:05:42

by Kuppuswamy, Sathyanarayanan

Subject: [PATCH v1 10/13] intel_mid: Moved SFI related code to intel_mid_sfi.c

Moved SFI specific parsing/handling code to intel_mid_sfi.c. This will enable
us to reuse our intel-mid code for platforms that supports firmware interfaces
other than SFI (like ACPI).

Change-Id: I95f6c233914c949fda8a7d14715a7e954fe7512e
Signed-off-by: Sathyanarayanan Kuppuswamy <[email protected]>
---
arch/x86/include/asm/intel-mid.h | 1 +
arch/x86/platform/intel-mid/Makefile | 5 +-
arch/x86/platform/intel-mid/intel-mid.c | 450 -------------------------
arch/x86/platform/intel-mid/intel_mid_sfi.c | 485 +++++++++++++++++++++++++++
4 files changed, 489 insertions(+), 452 deletions(-)
create mode 100644 arch/x86/platform/intel-mid/intel_mid_sfi.c

diff --git a/arch/x86/include/asm/intel-mid.h b/arch/x86/include/asm/intel-mid.h
index afc282a..358e0d2 100644
--- a/arch/x86/include/asm/intel-mid.h
+++ b/arch/x86/include/asm/intel-mid.h
@@ -18,6 +18,7 @@ extern int intel_mid_pci_init(void);
extern int get_gpio_by_name(const char *name);
extern void intel_scu_device_register(struct platform_device *pdev);
extern int __init sfi_parse_mrtc(struct sfi_table_header *table);
+extern int __init sfi_parse_mtmr(struct sfi_table_header *table);
extern int sfi_mrtc_num;
extern struct sfi_rtc_table_entry sfi_mrtc_array[];

diff --git a/arch/x86/platform/intel-mid/Makefile b/arch/x86/platform/intel-mid/Makefile
index 36323ee..9a6b6c3 100644
--- a/arch/x86/platform/intel-mid/Makefile
+++ b/arch/x86/platform/intel-mid/Makefile
@@ -1,8 +1,9 @@
obj-$(CONFIG_X86_INTEL_MID) += intel-mid.o
obj-$(CONFIG_X86_INTEL_MID) += intel_mid_vrtc.o
obj-$(CONFIG_EARLY_PRINTK_INTEL_MID) += early_printk_intel_mid.o
-
+# SFI specific code
+obj-$(CONFIG_SFI) += intel_mid_sfi.o
# BOARD files
obj-$(CONFIG_X86_INTEL_MID) += board.o
# platform configuration for board devices
-obj-y += device_libs/
\ No newline at end of file
+obj-y += device_libs/
diff --git a/arch/x86/platform/intel-mid/intel-mid.c b/arch/x86/platform/intel-mid/intel-mid.c
index e770028..7a98e9d 100644
--- a/arch/x86/platform/intel-mid/intel-mid.c
+++ b/arch/x86/platform/intel-mid/intel-mid.c
@@ -18,19 +18,9 @@
#include <linux/interrupt.h>
#include <linux/scatterlist.h>
#include <linux/sfi.h>
-#include <linux/intel_pmic_gpio.h>
-#include <linux/spi/spi.h>
-#include <linux/i2c.h>
-#include <linux/i2c/pca953x.h>
-#include <linux/gpio_keys.h>
-#include <linux/input.h>
-#include <linux/platform_device.h>
#include <linux/irq.h>
#include <linux/module.h>
#include <linux/notifier.h>
-#include <linux/mfd/intel_msic.h>
-#include <linux/gpio.h>
-#include <linux/i2c/tc35876x.h>

#include <asm/setup.h>
#include <asm/mpspec_def.h>
@@ -69,17 +59,9 @@

__cpuinitdata enum intel_mid_timer_options intel_mid_timer_options;

-static u32 sfi_mtimer_usage[SFI_MTMR_MAX_NUM];
-static struct sfi_timer_table_entry sfi_mtimer_array[SFI_MTMR_MAX_NUM];
enum intel_mid_cpu_type __intel_mid_cpu_chip;
EXPORT_SYMBOL_GPL(__intel_mid_cpu_chip);

-int sfi_mtimer_num;
-
-struct sfi_rtc_table_entry sfi_mrtc_array[SFI_MRTC_MAX];
-EXPORT_SYMBOL_GPL(sfi_mrtc_array);
-int sfi_mrtc_num;
-
static void intel_mid_power_off(void)
{
}
@@ -89,114 +71,6 @@ static void intel_mid_reboot(void)
intel_scu_ipc_simple_command(IPCMSG_COLD_BOOT, 0);
}

-/* parse all the mtimer info to a static mtimer array */
-static int __init sfi_parse_mtmr(struct sfi_table_header *table)
-{
- struct sfi_table_simple *sb;
- struct sfi_timer_table_entry *pentry;
- struct mpc_intsrc mp_irq;
- int totallen;
-
- sb = (struct sfi_table_simple *)table;
- if (!sfi_mtimer_num) {
- sfi_mtimer_num = SFI_GET_NUM_ENTRIES(sb,
- struct sfi_timer_table_entry);
- pentry = (struct sfi_timer_table_entry *) sb->pentry;
- totallen = sfi_mtimer_num * sizeof(*pentry);
- memcpy(sfi_mtimer_array, pentry, totallen);
- }
-
- pr_debug("SFI MTIMER info (num = %d):\n", sfi_mtimer_num);
- pentry = sfi_mtimer_array;
- for (totallen = 0; totallen < sfi_mtimer_num; totallen++, pentry++) {
- pr_debug("timer[%d]: paddr = 0x%08x, freq = %dHz,"
- " irq = %d\n", totallen, (u32)pentry->phys_addr,
- pentry->freq_hz, pentry->irq);
- if (!pentry->irq)
- continue;
- mp_irq.type = MP_INTSRC;
- mp_irq.irqtype = mp_INT;
-/* triggering mode edge bit 2-3, active high polarity bit 0-1 */
- mp_irq.irqflag = 5;
- mp_irq.srcbus = MP_BUS_ISA;
- mp_irq.srcbusirq = pentry->irq; /* IRQ */
- mp_irq.dstapic = MP_APIC_ALL;
- mp_irq.dstirq = pentry->irq;
- mp_save_irq(&mp_irq);
- }
-
- return 0;
-}
-
-struct sfi_timer_table_entry *sfi_get_mtmr(int hint)
-{
- int i;
- if (hint < sfi_mtimer_num) {
- if (!sfi_mtimer_usage[hint]) {
- pr_debug("hint taken for timer %d irq %d\n",
- hint, sfi_mtimer_array[hint].irq);
- sfi_mtimer_usage[hint] = 1;
- return &sfi_mtimer_array[hint];
- }
- }
- /* take the first timer available */
- for (i = 0; i < sfi_mtimer_num;) {
- if (!sfi_mtimer_usage[i]) {
- sfi_mtimer_usage[i] = 1;
- return &sfi_mtimer_array[i];
- }
- i++;
- }
- return NULL;
-}
-
-void sfi_free_mtmr(struct sfi_timer_table_entry *mtmr)
-{
- int i;
- for (i = 0; i < sfi_mtimer_num;) {
- if (mtmr->irq == sfi_mtimer_array[i].irq) {
- sfi_mtimer_usage[i] = 0;
- return;
- }
- i++;
- }
-}
-
-/* parse all the mrtc info to a global mrtc array */
-int __init sfi_parse_mrtc(struct sfi_table_header *table)
-{
- struct sfi_table_simple *sb;
- struct sfi_rtc_table_entry *pentry;
- struct mpc_intsrc mp_irq;
-
- int totallen;
-
- sb = (struct sfi_table_simple *)table;
- if (!sfi_mrtc_num) {
- sfi_mrtc_num = SFI_GET_NUM_ENTRIES(sb,
- struct sfi_rtc_table_entry);
- pentry = (struct sfi_rtc_table_entry *)sb->pentry;
- totallen = sfi_mrtc_num * sizeof(*pentry);
- memcpy(sfi_mrtc_array, pentry, totallen);
- }
-
- pr_debug("SFI RTC info (num = %d):\n", sfi_mrtc_num);
- pentry = sfi_mrtc_array;
- for (totallen = 0; totallen < sfi_mrtc_num; totallen++, pentry++) {
- pr_debug("RTC[%d]: paddr = 0x%08x, irq = %d\n",
- totallen, (u32)pentry->phys_addr, pentry->irq);
- mp_irq.type = MP_INTSRC;
- mp_irq.irqtype = mp_INT;
- mp_irq.irqflag = 0xf; /* level trigger and active low */
- mp_irq.srcbus = MP_BUS_ISA;
- mp_irq.srcbusirq = pentry->irq; /* IRQ */
- mp_irq.dstapic = MP_APIC_ALL;
- mp_irq.dstirq = pentry->irq;
- mp_save_irq(&mp_irq);
- }
- return 0;
-}
-
static unsigned long __init intel_mid_calibrate_tsc(void)
{
unsigned long fast_calibrate;
@@ -337,327 +211,3 @@ static inline int __init setup_x86_intel_mid_timer(char *arg)
return 0;
}
__setup("x86_intel_mid_timer=", setup_x86_intel_mid_timer);
-
-/*
- * Parsing GPIO table first, since the DEVS table will need this table
- * to map the pin name to the actual pin.
- */
-static struct sfi_gpio_table_entry *gpio_table;
-static int gpio_num_entry;
-
-static int __init sfi_parse_gpio(struct sfi_table_header *table)
-{
- struct sfi_table_simple *sb;
- struct sfi_gpio_table_entry *pentry;
- int num, i;
-
- if (gpio_table)
- return 0;
- sb = (struct sfi_table_simple *)table;
- num = SFI_GET_NUM_ENTRIES(sb, struct sfi_gpio_table_entry);
- pentry = (struct sfi_gpio_table_entry *)sb->pentry;
-
- gpio_table = kmalloc(num * sizeof(*pentry), GFP_KERNEL);
- if (!gpio_table)
- return -1;
- memcpy(gpio_table, pentry, num * sizeof(*pentry));
- gpio_num_entry = num;
-
- pr_debug("GPIO pin info:\n");
- for (i = 0; i < num; i++, pentry++)
- pr_debug("info[%2d]: controller = %16.16s, pin_name = %16.16s,"
- " pin = %d\n", i,
- pentry->controller_name,
- pentry->pin_name,
- pentry->pin_no);
- return 0;
-}
-
-int get_gpio_by_name(const char *name)
-{
- struct sfi_gpio_table_entry *pentry = gpio_table;
- int i;
-
- if (!pentry)
- return -1;
- for (i = 0; i < gpio_num_entry; i++, pentry++) {
- if (!strncmp(name, pentry->pin_name, SFI_NAME_LEN))
- return pentry->pin_no;
- }
- return -1;
-}
-
-#define MAX_IPCDEVS 24
-static struct platform_device *ipc_devs[MAX_IPCDEVS];
-static int ipc_next_dev;
-
-#define MAX_SCU_SPI 24
-static struct spi_board_info *spi_devs[MAX_SCU_SPI];
-static int spi_next_dev;
-
-#define MAX_SCU_I2C 24
-static struct i2c_board_info *i2c_devs[MAX_SCU_I2C];
-static int i2c_bus[MAX_SCU_I2C];
-static int i2c_next_dev;
-
-void __init intel_scu_device_register(struct platform_device *pdev)
-{
- if (ipc_next_dev == MAX_IPCDEVS)
- pr_err("too many SCU IPC devices");
- else
- ipc_devs[ipc_next_dev++] = pdev;
-}
-
-static void __init intel_scu_spi_device_register(struct spi_board_info *sdev)
-{
- struct spi_board_info *new_dev;
-
- if (spi_next_dev == MAX_SCU_SPI) {
- pr_err("too many SCU SPI devices");
- return;
- }
-
- new_dev = kzalloc(sizeof(*sdev), GFP_KERNEL);
- if (!new_dev) {
- pr_err("failed to alloc mem for delayed spi dev %s\n",
- sdev->modalias);
- return;
- }
- memcpy(new_dev, sdev, sizeof(*sdev));
-
- spi_devs[spi_next_dev++] = new_dev;
-}
-
-static void __init intel_scu_i2c_device_register(int bus,
- struct i2c_board_info *idev)
-{
- struct i2c_board_info *new_dev;
-
- if (i2c_next_dev == MAX_SCU_I2C) {
- pr_err("too many SCU I2C devices");
- return;
- }
-
- new_dev = kzalloc(sizeof(*idev), GFP_KERNEL);
- if (!new_dev) {
- pr_err("failed to alloc mem for delayed i2c dev %s\n",
- idev->type);
- return;
- }
- memcpy(new_dev, idev, sizeof(*idev));
-
- i2c_bus[i2c_next_dev] = bus;
- i2c_devs[i2c_next_dev++] = new_dev;
-}
-
-BLOCKING_NOTIFIER_HEAD(intel_scu_notifier);
-EXPORT_SYMBOL_GPL(intel_scu_notifier);
-
-/* Called by IPC driver */
-void intel_scu_devices_create(void)
-{
- int i;
-
- for (i = 0; i < ipc_next_dev; i++)
- platform_device_add(ipc_devs[i]);
-
- for (i = 0; i < spi_next_dev; i++)
- spi_register_board_info(spi_devs[i], 1);
-
- for (i = 0; i < i2c_next_dev; i++) {
- struct i2c_adapter *adapter;
- struct i2c_client *client;
-
- adapter = i2c_get_adapter(i2c_bus[i]);
- if (adapter) {
- client = i2c_new_device(adapter, i2c_devs[i]);
- if (!client)
- pr_err("can't create i2c device %s\n",
- i2c_devs[i]->type);
- } else
- i2c_register_board_info(i2c_bus[i], i2c_devs[i], 1);
- }
- intel_scu_notifier_post(SCU_AVAILABLE, NULL);
-}
-EXPORT_SYMBOL_GPL(intel_scu_devices_create);
-
-/* Called by IPC driver */
-void intel_scu_devices_destroy(void)
-{
- int i;
-
- intel_scu_notifier_post(SCU_DOWN, NULL);
-
- for (i = 0; i < ipc_next_dev; i++)
- platform_device_del(ipc_devs[i]);
-}
-EXPORT_SYMBOL_GPL(intel_scu_devices_destroy);
-
-static void __init install_irq_resource(struct platform_device *pdev, int irq)
-{
- /* Single threaded */
- static struct resource __initdata res = {
- .name = "IRQ",
- .flags = IORESOURCE_IRQ,
- };
- res.start = irq;
- platform_device_add_resources(pdev, &res, 1);
-}
-
-static void __init sfi_handle_ipc_dev(struct sfi_device_table_entry *pentry,
- struct devs_id *dev)
-{
- struct platform_device *pdev;
- void *pdata = NULL;
-
- pr_debug("IPC bus, name = %16.16s, irq = 0x%2x\n",
- pentry->name, pentry->irq);
- pdata = dev->get_platform_data(pentry);
-
- pdev = platform_device_alloc(pentry->name, 0);
- if (pdev == NULL) {
- pr_err("out of memory for SFI platform device '%s'.\n",
- pentry->name);
- return;
- }
- install_irq_resource(pdev, pentry->irq);
-
- pdev->dev.platform_data = pdata;
- platform_device_add(pdev);
-}
-
-static void __init sfi_handle_spi_dev(struct sfi_device_table_entry *pentry,
- struct devs_id *dev)
-{
- struct spi_board_info spi_info;
- void *pdata = NULL;
-
- memset(&spi_info, 0, sizeof(spi_info));
- strncpy(spi_info.modalias, pentry->name, SFI_NAME_LEN);
- spi_info.irq = ((pentry->irq == (u8)0xff) ? 0 : pentry->irq);
- spi_info.bus_num = pentry->host_num;
- spi_info.chip_select = pentry->addr;
- spi_info.max_speed_hz = pentry->max_freq;
- pr_debug("SPI bus=%d, name=%16.16s, irq=0x%2x, max_freq=%d, cs=%d\n",
- spi_info.bus_num,
- spi_info.modalias,
- spi_info.irq,
- spi_info.max_speed_hz,
- spi_info.chip_select);
-
- pdata = dev->get_platform_data(&spi_info);
-
- spi_info.platform_data = pdata;
- if (dev->delay)
- intel_scu_spi_device_register(&spi_info);
- else
- spi_register_board_info(&spi_info, 1);
-}
-
-static void __init sfi_handle_i2c_dev(struct sfi_device_table_entry *pentry,
- struct devs_id *dev)
-{
- struct i2c_board_info i2c_info;
- void *pdata = NULL;
-
- memset(&i2c_info, 0, sizeof(i2c_info));
- strncpy(i2c_info.type, pentry->name, SFI_NAME_LEN);
- i2c_info.irq = ((pentry->irq == (u8)0xff) ? 0 : pentry->irq);
- i2c_info.addr = pentry->addr;
- pr_debug("I2C bus = %d, name = %16.16s, irq = 0x%2x, addr = 0x%x\n",
- pentry->host_num,
- i2c_info.type,
- i2c_info.irq,
- i2c_info.addr);
- pdata = dev->get_platform_data(&i2c_info);
- i2c_info.platform_data = pdata;
-
- if (dev->delay)
- intel_scu_i2c_device_register(pentry->host_num, &i2c_info);
- else
- i2c_register_board_info(pentry->host_num, &i2c_info, 1);
-}
-
-static struct devs_id __init *get_device_id(u8 type, char *name)
-{
- struct devs_id *dev = device_ids;
-
- if (device_ids == NULL)
- return NULL;
-
- while (dev->name[0]) {
- if (dev->type == type &&
- !strncmp(dev->name, name, SFI_NAME_LEN)) {
- return dev;
- }
- dev++;
- }
-
- return NULL;
-}
-
-static int __init sfi_parse_devs(struct sfi_table_header *table)
-{
- struct sfi_table_simple *sb;
- struct sfi_device_table_entry *pentry;
- struct devs_id *dev = NULL;
- int num, i;
- int ioapic;
- struct io_apic_irq_attr irq_attr;
-
- sb = (struct sfi_table_simple *)table;
- num = SFI_GET_NUM_ENTRIES(sb, struct sfi_device_table_entry);
- pentry = (struct sfi_device_table_entry *)sb->pentry;
-
- for (i = 0; i < num; i++, pentry++) {
- int irq = pentry->irq;
-
- if (irq != (u8)0xff) { /* native RTE case */
- /* these SPI2 devices are not exposed to system as PCI
- * devices, but they have separate RTE entry in IOAPIC
- * so we have to enable them one by one here
- */
- ioapic = mp_find_ioapic(irq);
- irq_attr.ioapic = ioapic;
- irq_attr.ioapic_pin = irq;
- irq_attr.trigger = 1;
- irq_attr.polarity = 1;
- io_apic_set_pci_routing(NULL, irq, &irq_attr);
- } else
- irq = 0; /* No irq */
-
- dev = get_device_id(pentry->type, pentry->name);
-
- if ((dev == NULL) || (dev->get_platform_data == NULL))
- continue;
-
- if (dev->device_handler) {
- dev->device_handler(pentry, dev);
- } else {
- switch (pentry->type) {
- case SFI_DEV_TYPE_IPC:
- sfi_handle_ipc_dev(pentry, dev);
- break;
- case SFI_DEV_TYPE_SPI:
- sfi_handle_spi_dev(pentry, dev);
- break;
- case SFI_DEV_TYPE_I2C:
- sfi_handle_i2c_dev(pentry, dev);
- break;
- case SFI_DEV_TYPE_UART:
- case SFI_DEV_TYPE_HSI:
- default:
- break;
- }
- }
- }
- return 0;
-}
-
-static int __init intel_mid_platform_init(void)
-{
- sfi_table_parse(SFI_SIG_GPIO, NULL, NULL, sfi_parse_gpio);
- sfi_table_parse(SFI_SIG_DEVS, NULL, NULL, sfi_parse_devs);
- return 0;
-}
-arch_initcall(intel_mid_platform_init);
diff --git a/arch/x86/platform/intel-mid/intel_mid_sfi.c b/arch/x86/platform/intel-mid/intel_mid_sfi.c
new file mode 100644
index 0000000..c4a10de
--- /dev/null
+++ b/arch/x86/platform/intel-mid/intel_mid_sfi.c
@@ -0,0 +1,485 @@
+/*
+ * intel_mid_sfi.c: Intel MID SFI initialization code
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/scatterlist.h>
+#include <linux/sfi.h>
+#include <linux/intel_pmic_gpio.h>
+#include <linux/spi/spi.h>
+#include <linux/i2c.h>
+#include <linux/skbuff.h>
+#include <linux/gpio.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
+#include <linux/platform_device.h>
+#include <linux/irq.h>
+#include <linux/module.h>
+#include <linux/notifier.h>
+#include <linux/mmc/core.h>
+#include <linux/mmc/card.h>
+#include <linux/blkdev.h>
+
+#include <asm/setup.h>
+#include <asm/mpspec_def.h>
+#include <asm/hw_irq.h>
+#include <asm/apic.h>
+#include <asm/io_apic.h>
+#include <asm/intel-mid.h>
+#include <asm/intel_mid_vrtc.h>
+#include <asm/io.h>
+#include <asm/i8259.h>
+#include <asm/intel_scu_ipc.h>
+#include <asm/apb_timer.h>
+#include <asm/reboot.h>
+#include "intel_mid_weak_decls.h"
+
+#define SFI_SIG_OEM0 "OEM0"
+#define MAX_IPCDEVS 24
+#define MAX_SCU_SPI 24
+#define MAX_SCU_I2C 24
+
+static struct platform_device *ipc_devs[MAX_IPCDEVS];
+static struct spi_board_info *spi_devs[MAX_SCU_SPI];
+static struct i2c_board_info *i2c_devs[MAX_SCU_I2C];
+static struct sfi_gpio_table_entry *gpio_table;
+static struct sfi_timer_table_entry sfi_mtimer_array[SFI_MTMR_MAX_NUM];
+static int ipc_next_dev;
+static int spi_next_dev;
+static int i2c_next_dev;
+static int i2c_bus[MAX_SCU_I2C];
+static int gpio_num_entry;
+static u32 sfi_mtimer_usage[SFI_MTMR_MAX_NUM];
+int sfi_mrtc_num;
+int sfi_mtimer_num;
+
+struct sfi_rtc_table_entry sfi_mrtc_array[SFI_MRTC_MAX];
+EXPORT_SYMBOL_GPL(sfi_mrtc_array);
+
+struct blocking_notifier_head intel_scu_notifier =
+ BLOCKING_NOTIFIER_INIT(intel_scu_notifier);
+EXPORT_SYMBOL_GPL(intel_scu_notifier);
+
+/* parse all the mtimer info to a static mtimer array */
+int __init sfi_parse_mtmr(struct sfi_table_header *table)
+{
+ struct sfi_table_simple *sb;
+ struct sfi_timer_table_entry *pentry;
+ struct mpc_intsrc mp_irq;
+ int totallen;
+
+ sb = (struct sfi_table_simple *)table;
+ if (!sfi_mtimer_num) {
+ sfi_mtimer_num = SFI_GET_NUM_ENTRIES(sb,
+ struct sfi_timer_table_entry);
+ pentry = (struct sfi_timer_table_entry *) sb->pentry;
+ totallen = sfi_mtimer_num * sizeof(*pentry);
+ memcpy(sfi_mtimer_array, pentry, totallen);
+ }
+
+ pr_debug("SFI MTIMER info (num = %d):\n", sfi_mtimer_num);
+ pentry = sfi_mtimer_array;
+ for (totallen = 0; totallen < sfi_mtimer_num; totallen++, pentry++) {
+ pr_debug("timer[%d]: paddr = 0x%08x, freq = %dHz, irq = %d\n",
+ totallen, (u32)pentry->phys_addr,
+ pentry->freq_hz, pentry->irq);
+ if (!pentry->irq)
+ continue;
+ mp_irq.type = MP_INTSRC;
+ mp_irq.irqtype = mp_INT;
+/* triggering mode edge bit 2-3, active high polarity bit 0-1 */
+ mp_irq.irqflag = 5;
+ mp_irq.srcbus = MP_BUS_ISA;
+ mp_irq.srcbusirq = pentry->irq; /* IRQ */
+ mp_irq.dstapic = MP_APIC_ALL;
+ mp_irq.dstirq = pentry->irq;
+ mp_save_irq(&mp_irq);
+ }
+
+ return 0;
+}
+
+struct sfi_timer_table_entry *sfi_get_mtmr(int hint)
+{
+ int i;
+ if (hint < sfi_mtimer_num) {
+ if (!sfi_mtimer_usage[hint]) {
+ pr_debug("hint taken for timer %d irq %d\n",
+ hint, sfi_mtimer_array[hint].irq);
+ sfi_mtimer_usage[hint] = 1;
+ return &sfi_mtimer_array[hint];
+ }
+ }
+ /* take the first timer available */
+ for (i = 0; i < sfi_mtimer_num;) {
+ if (!sfi_mtimer_usage[i]) {
+ sfi_mtimer_usage[i] = 1;
+ return &sfi_mtimer_array[i];
+ }
+ i++;
+ }
+ return NULL;
+}
+
+void sfi_free_mtmr(struct sfi_timer_table_entry *mtmr)
+{
+ int i;
+ for (i = 0; i < sfi_mtimer_num;) {
+ if (mtmr->irq == sfi_mtimer_array[i].irq) {
+ sfi_mtimer_usage[i] = 0;
+ return;
+ }
+ i++;
+ }
+}
+
+/* parse all the mrtc info to a global mrtc array */
+int __init sfi_parse_mrtc(struct sfi_table_header *table)
+{
+ struct sfi_table_simple *sb;
+ struct sfi_rtc_table_entry *pentry;
+ struct mpc_intsrc mp_irq;
+
+ int totallen;
+
+ sb = (struct sfi_table_simple *)table;
+ if (!sfi_mrtc_num) {
+ sfi_mrtc_num = SFI_GET_NUM_ENTRIES(sb,
+ struct sfi_rtc_table_entry);
+ pentry = (struct sfi_rtc_table_entry *)sb->pentry;
+ totallen = sfi_mrtc_num * sizeof(*pentry);
+ memcpy(sfi_mrtc_array, pentry, totallen);
+ }
+
+ pr_debug("SFI RTC info (num = %d):\n", sfi_mrtc_num);
+ pentry = sfi_mrtc_array;
+ for (totallen = 0; totallen < sfi_mrtc_num; totallen++, pentry++) {
+ pr_debug("RTC[%d]: paddr = 0x%08x, irq = %d\n",
+ totallen, (u32)pentry->phys_addr, pentry->irq);
+ mp_irq.type = MP_INTSRC;
+ mp_irq.irqtype = mp_INT;
+ mp_irq.irqflag = 0xf; /* level trigger and active low */
+ mp_irq.srcbus = MP_BUS_ISA;
+ mp_irq.srcbusirq = pentry->irq; /* IRQ */
+ mp_irq.dstapic = MP_APIC_ALL;
+ mp_irq.dstirq = pentry->irq;
+ mp_save_irq(&mp_irq);
+ }
+ return 0;
+}
+
+
+/*
+ * Parsing GPIO table first, since the DEVS table will need this table
+ * to map the pin name to the actual pin.
+ */
+static int __init sfi_parse_gpio(struct sfi_table_header *table)
+{
+ struct sfi_table_simple *sb;
+ struct sfi_gpio_table_entry *pentry;
+ int num, i;
+
+ if (gpio_table)
+ return 0;
+ sb = (struct sfi_table_simple *)table;
+ num = SFI_GET_NUM_ENTRIES(sb, struct sfi_gpio_table_entry);
+ pentry = (struct sfi_gpio_table_entry *)sb->pentry;
+
+ gpio_table = kmalloc(num * sizeof(*pentry), GFP_KERNEL);
+ if (!gpio_table)
+ return -1;
+ memcpy(gpio_table, pentry, num * sizeof(*pentry));
+ gpio_num_entry = num;
+
+ pr_debug("GPIO pin info:\n");
+ for (i = 0; i < num; i++, pentry++)
+ pr_debug("info[%2d]: controller = %16.16s, pin_name = %16.16s,"
+ " pin = %d\n", i,
+ pentry->controller_name,
+ pentry->pin_name,
+ pentry->pin_no);
+ return 0;
+}
+
+int get_gpio_by_name(const char *name)
+{
+ struct sfi_gpio_table_entry *pentry = gpio_table;
+ int i;
+
+ if (!pentry)
+ return -1;
+ for (i = 0; i < gpio_num_entry; i++, pentry++) {
+ if (!strncmp(name, pentry->pin_name, SFI_NAME_LEN))
+ return pentry->pin_no;
+ }
+ return -1;
+}
+
+void __init intel_scu_device_register(struct platform_device *pdev)
+{
+ if (ipc_next_dev == MAX_IPCDEVS)
+ pr_err("too many SCU IPC devices");
+ else
+ ipc_devs[ipc_next_dev++] = pdev;
+}
+
+static void __init intel_scu_spi_device_register(struct spi_board_info *sdev)
+{
+ struct spi_board_info *new_dev;
+
+ if (spi_next_dev == MAX_SCU_SPI) {
+ pr_err("too many SCU SPI devices");
+ return;
+ }
+
+ new_dev = kzalloc(sizeof(*sdev), GFP_KERNEL);
+ if (!new_dev) {
+ pr_err("failed to alloc mem for delayed spi dev %s\n",
+ sdev->modalias);
+ return;
+ }
+ memcpy(new_dev, sdev, sizeof(*sdev));
+
+ spi_devs[spi_next_dev++] = new_dev;
+}
+
+static void __init intel_scu_i2c_device_register(int bus,
+ struct i2c_board_info *idev)
+{
+ struct i2c_board_info *new_dev;
+
+ if (i2c_next_dev == MAX_SCU_I2C) {
+ pr_err("too many SCU I2C devices");
+ return;
+ }
+
+ new_dev = kzalloc(sizeof(*idev), GFP_KERNEL);
+ if (!new_dev) {
+ pr_err("failed to alloc mem for delayed i2c dev %s\n",
+ idev->type);
+ return;
+ }
+ memcpy(new_dev, idev, sizeof(*idev));
+
+ i2c_bus[i2c_next_dev] = bus;
+ i2c_devs[i2c_next_dev++] = new_dev;
+}
+
+/* Called by IPC driver */
+void intel_scu_devices_create(void)
+{
+ int i;
+
+ for (i = 0; i < ipc_next_dev; i++)
+ platform_device_add(ipc_devs[i]);
+
+ for (i = 0; i < spi_next_dev; i++)
+ spi_register_board_info(spi_devs[i], 1);
+
+ for (i = 0; i < i2c_next_dev; i++) {
+ struct i2c_adapter *adapter;
+ struct i2c_client *client;
+
+ adapter = i2c_get_adapter(i2c_bus[i]);
+ if (adapter) {
+ client = i2c_new_device(adapter, i2c_devs[i]);
+ if (!client)
+ pr_err("can't create i2c device %s\n",
+ i2c_devs[i]->type);
+ } else
+ i2c_register_board_info(i2c_bus[i], i2c_devs[i], 1);
+ }
+ intel_scu_notifier_post(SCU_AVAILABLE, NULL);
+}
+EXPORT_SYMBOL_GPL(intel_scu_devices_create);
+
+/* Called by IPC driver */
+void intel_scu_devices_destroy(void)
+{
+ int i;
+
+ intel_scu_notifier_post(SCU_DOWN, NULL);
+
+ for (i = 0; i < ipc_next_dev; i++)
+ platform_device_del(ipc_devs[i]);
+}
+EXPORT_SYMBOL_GPL(intel_scu_devices_destroy);
+
+static void __init install_irq_resource(struct platform_device *pdev, int irq)
+{
+ /* Single threaded */
+ static struct resource __initdata res = {
+ .name = "IRQ",
+ .flags = IORESOURCE_IRQ,
+ };
+ res.start = irq;
+ platform_device_add_resources(pdev, &res, 1);
+}
+
+static void __init sfi_handle_ipc_dev(struct sfi_device_table_entry *pentry,
+ struct devs_id *dev)
+{
+ struct platform_device *pdev;
+ void *pdata = NULL;
+
+ pr_debug("IPC bus, name = %16.16s, irq = 0x%2x\n",
+ pentry->name, pentry->irq);
+ pdata = dev->get_platform_data(pentry);
+
+ pdev = platform_device_alloc(pentry->name, 0);
+ if (pdev == NULL) {
+ pr_err("out of memory for SFI platform device '%s'.\n",
+ pentry->name);
+ return;
+ }
+ install_irq_resource(pdev, pentry->irq);
+
+ pdev->dev.platform_data = pdata;
+ platform_device_add(pdev);
+}
+
+static void __init sfi_handle_spi_dev(struct sfi_device_table_entry *pentry,
+ struct devs_id *dev)
+{
+ struct spi_board_info spi_info;
+ void *pdata = NULL;
+
+ memset(&spi_info, 0, sizeof(spi_info));
+ strncpy(spi_info.modalias, pentry->name, SFI_NAME_LEN);
+ spi_info.irq = ((pentry->irq == (u8)0xff) ? 0 : pentry->irq);
+ spi_info.bus_num = pentry->host_num;
+ spi_info.chip_select = pentry->addr;
+ spi_info.max_speed_hz = pentry->max_freq;
+ pr_debug("SPI bus=%d, name=%16.16s, irq=0x%2x, max_freq=%d, cs=%d\n",
+ spi_info.bus_num,
+ spi_info.modalias,
+ spi_info.irq,
+ spi_info.max_speed_hz,
+ spi_info.chip_select);
+
+ pdata = dev->get_platform_data(&spi_info);
+
+ spi_info.platform_data = pdata;
+ if (dev->delay)
+ intel_scu_spi_device_register(&spi_info);
+ else
+ spi_register_board_info(&spi_info, 1);
+}
+
+static void __init sfi_handle_i2c_dev(struct sfi_device_table_entry *pentry,
+ struct devs_id *dev)
+{
+ struct i2c_board_info i2c_info;
+ void *pdata = NULL;
+
+ memset(&i2c_info, 0, sizeof(i2c_info));
+ strncpy(i2c_info.type, pentry->name, SFI_NAME_LEN);
+ i2c_info.irq = ((pentry->irq == (u8)0xff) ? 0 : pentry->irq);
+ i2c_info.addr = pentry->addr;
+ pr_debug("I2C bus = %d, name = %16.16s, irq = 0x%2x, addr = 0x%x\n",
+ pentry->host_num,
+ i2c_info.type,
+ i2c_info.irq,
+ i2c_info.addr);
+ pdata = dev->get_platform_data(&i2c_info);
+ i2c_info.platform_data = pdata;
+
+ if (dev->delay)
+ intel_scu_i2c_device_register(pentry->host_num, &i2c_info);
+ else
+ i2c_register_board_info(pentry->host_num, &i2c_info, 1);
+}
+
+static struct devs_id __init *get_device_id(u8 type, char *name)
+{
+ struct devs_id *dev = device_ids;
+
+ if (device_ids == NULL)
+ return NULL;
+
+ while (dev->name[0]) {
+ if (dev->type == type &&
+ !strncmp(dev->name, name, SFI_NAME_LEN)) {
+ return dev;
+ }
+ dev++;
+ }
+
+ return NULL;
+}
+
+static int __init sfi_parse_devs(struct sfi_table_header *table)
+{
+ struct sfi_table_simple *sb;
+ struct sfi_device_table_entry *pentry;
+ struct devs_id *dev = NULL;
+ int num, i;
+ int ioapic;
+ struct io_apic_irq_attr irq_attr;
+
+ sb = (struct sfi_table_simple *)table;
+ num = SFI_GET_NUM_ENTRIES(sb, struct sfi_device_table_entry);
+ pentry = (struct sfi_device_table_entry *)sb->pentry;
+
+ for (i = 0; i < num; i++, pentry++) {
+ int irq = pentry->irq;
+
+ if (irq != (u8)0xff) { /* native RTE case */
+ /* these SPI2 devices are not exposed to system as PCI
+ * devices, but they have separate RTE entry in IOAPIC
+ * so we have to enable them one by one here
+ */
+ ioapic = mp_find_ioapic(irq);
+ irq_attr.ioapic = ioapic;
+ irq_attr.ioapic_pin = irq;
+ irq_attr.trigger = 1;
+ irq_attr.polarity = 1;
+ io_apic_set_pci_routing(NULL, irq, &irq_attr);
+ } else
+ irq = 0; /* No irq */
+
+ dev = get_device_id(pentry->type, pentry->name);
+
+ if ((dev == NULL) || (dev->get_platform_data == NULL))
+ continue;
+
+ if (dev->device_handler) {
+ dev->device_handler(pentry, dev);
+ } else {
+ switch (pentry->type) {
+ case SFI_DEV_TYPE_IPC:
+ sfi_handle_ipc_dev(pentry, dev);
+ break;
+ case SFI_DEV_TYPE_SPI:
+ sfi_handle_spi_dev(pentry, dev);
+ break;
+ case SFI_DEV_TYPE_I2C:
+ sfi_handle_i2c_dev(pentry, dev);
+ break;
+ case SFI_DEV_TYPE_UART:
+ case SFI_DEV_TYPE_HSI:
+ default:
+ break;
+ }
+ }
+ }
+ return 0;
+}
+
+static int __init intel_mid_platform_init(void)
+{
+ sfi_table_parse(SFI_SIG_GPIO, NULL, NULL, sfi_parse_gpio);
+ sfi_table_parse(SFI_SIG_DEVS, NULL, NULL, sfi_parse_devs);
+ return 0;
+}
+arch_initcall(intel_mid_platform_init);
--
1.7.9.5

2013-05-30 18:44:24

by Linus Walleij

Subject: Re: [PATCH v1 12/13] gpiolib: append SFI helpers for GPIO API

On Thu, May 30, 2013 at 4:45 AM, Sathyanarayanan Kuppuswamy
<[email protected]> wrote:

> From: Andy Shevchenko <[email protected]>
>
> To support some (legacy) firmwares and platforms let's make life easier for
> their customers.

I'd like Grant to have a look at this too, if possible.

> Change-Id: I39a0e3e0ed4e04a0d733801f59d46d76189195e8

We don't put Google Gerrit change-IDs into the kernel log.
But fun to know you're using it...

(...)
> +++ b/drivers/gpio/gpiolib-sfi.c
> @@ -0,0 +1,76 @@
> +/*
> + * SFI helpers for GPIO API

Spell out "Simple Firmware Interface helpers..." it's not like
everyone knows.

> +static struct sfi_gpio_table_entry *sfi_gpio_table;
> +static int sfi_gpio_num_entry;
> +
> +int sfi_get_gpio_by_name(const char *name)
> +{
> + struct sfi_gpio_table_entry *pentry = sfi_gpio_table;
> + int i;
> +
> + if (!pentry)
> + return -1;

Don't you want to return a serious error code?

> +
> + for (i = 0; i < sfi_gpio_num_entry; i++, pentry++) {
> + if (!strncmp(name, pentry->pin_name, SFI_NAME_LEN))
> + return pentry->pin_no;
> + }
> +
> + return -1;

Dito.

> +}
> +EXPORT_SYMBOL_GPL(sfi_get_gpio_by_name);

(...)
> diff --git a/include/linux/sfi_gpio.h b/include/linux/sfi_gpio.h
> new file mode 100644
> index 0000000..ef7e497
> --- /dev/null
> +++ b/include/linux/sfi_gpio.h
> @@ -0,0 +1,27 @@
> +#ifndef _LINUX_SFI_GPIO_H_
> +#define _LINUX_SFI_GPIO_H_
> +
> +#include <linux/errno.h>
> +#include <linux/gpio.h>
> +#include <linux/sfi.h>
> +
> +#ifdef CONFIG_GPIO_SFI
> +
> +int sfi_get_gpio_by_name(const char *name);
> +int __init sfi_gpio_init(void);

IIRC you do not need to tag things with __init in header files.

> +
> +#else /* CONFIG_GPIO_SFI */
> +
> +static inline int sfi_get_gpio_by_name(const char *name);
> +{
> + return -1;

Why -1? -ENOTSUPP? Or some other error code?

> +}
> +
> +static inline int __init sfi_gpio_init(void)

Do not tag inline functions with __init.

Yours,
Linus Walleij

2013-05-31 08:24:29

by Andy Shevchenko

Subject: Re: [PATCH v1 11/13] sfi: fix compiler warnings

On Thu, May 30, 2013 at 5:45 AM, Sathyanarayanan Kuppuswamy
<[email protected]> wrote:
> From: Andy Shevchenko <[email protected]>

Can you use newer version [1] of this patch?

[1] https://lkml.org/lkml/2013/5/28/83

--
With Best Regards,
Andy Shevchenko

2013-05-31 08:40:07

by Andy Shevchenko

Subject: Re: [PATCH v1 00/13] mrst refactoring patches

On Thu, May 30, 2013 at 5:45 AM, Sathyanarayanan Kuppuswamy
<[email protected]> wrote:
> As Intel rolling out more SoC's after Moorestown, we need to re-structure
> the code in a way that is backward compatible and easy to expand.This
> patch set implements a flexible way to support multiple boards and devices.
>
> Patch 1 - 5 fixes some indentation issue, compiler warnings and renames.
> Patch 6 - 13 refactors mrst code.

First of all, please, remove Gerrit IDs from the commit messages.

> Andy Shevchenko (2):
> sfi: fix compiler warnings
> gpiolib: append SFI helpers for GPIO API

I still insist you may move my patches before you do split to the device_lib.

Now you do some cleaning up, than split, than move to new GPIO API.
In proposed case you will have one step less.

Other comments are provided by patch.

P.S. There are new versions of my patches. One of them was published
already, I put a link in the comment, the other will be ready soon
(addressing Linus' comments).

--
With Best Regards,
Andy Shevchenko

2013-05-31 09:28:05

by Andy Shevchenko

Subject: [PATCH v1.1] gpiolib: append SFI helpers for GPIO API

To support some (legacy) firmwares and platforms let's make life easier for
their customers.

This patch extracts SFI GPIO API from arch/x86/platform/mrst/mrst.c.

Signed-off-by: Andy Shevchenko <[email protected]>
Acked-by: Len Brown <[email protected]>
Cc: Grant Likely <[email protected]>
Cc: Linus Walleij <[email protected]>
---
Since v1:
- address Linus' comments: self-descriptive error codes, removal of __init in
header, better title in c-file.

drivers/gpio/Kconfig | 4 +++
drivers/gpio/Makefile | 1 +
drivers/gpio/gpiolib-sfi.c | 76 ++++++++++++++++++++++++++++++++++++++++++++++
drivers/sfi/sfi_core.c | 7 +++++
include/linux/sfi_gpio.h | 27 ++++++++++++++++
5 files changed, 115 insertions(+)
create mode 100644 drivers/gpio/gpiolib-sfi.c
create mode 100644 include/linux/sfi_gpio.h

diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index f471fe8..a615d47 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -51,6 +51,10 @@ config OF_GPIO
def_bool y
depends on OF

+config GPIO_SFI
+ def_bool y
+ depends on SFI
+
config GPIO_ACPI
def_bool y
depends on ACPI
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index 0cb2d65..63d2abd 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -5,6 +5,7 @@ ccflags-$(CONFIG_DEBUG_GPIO) += -DDEBUG
obj-$(CONFIG_GPIO_DEVRES) += devres.o
obj-$(CONFIG_GPIOLIB) += gpiolib.o
obj-$(CONFIG_OF_GPIO) += gpiolib-of.o
+obj-$(CONFIG_GPIO_SFI) += gpiolib-sfi.o
obj-$(CONFIG_GPIO_ACPI) += gpiolib-acpi.o

# Device drivers. Generally keep list sorted alphabetically
diff --git a/drivers/gpio/gpiolib-sfi.c b/drivers/gpio/gpiolib-sfi.c
new file mode 100644
index 0000000..cccdc0f
--- /dev/null
+++ b/drivers/gpio/gpiolib-sfi.c
@@ -0,0 +1,76 @@
+/*
+ * Simple Firmware Interface (SFI) helpers for GPIO API
+ *
+ * Copyright (C) 2013, Intel Corporation
+ * Author: Andy Shevchenko <[email protected]>
+ *
+ * Based on work done for Intel MID platforms (mrst.c)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#define pr_fmt(fmt) "SFI: GPIO: " fmt
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/gpio.h>
+#include <linux/export.h>
+#include <linux/sfi_gpio.h>
+#include <linux/sfi.h>
+
+static struct sfi_gpio_table_entry *sfi_gpio_table;
+static int sfi_gpio_num_entry;
+
+int sfi_get_gpio_by_name(const char *name)
+{
+ struct sfi_gpio_table_entry *pentry = sfi_gpio_table;
+ int i;
+
+ if (!pentry)
+ return -EINVAL;
+
+ for (i = 0; i < sfi_gpio_num_entry; i++, pentry++) {
+ if (!strncmp(name, pentry->pin_name, SFI_NAME_LEN))
+ return pentry->pin_no;
+ }
+
+ return -ENODEV;
+}
+EXPORT_SYMBOL_GPL(sfi_get_gpio_by_name);
+
+static int __init sfi_gpio_parse(struct sfi_table_header *table)
+{
+ struct sfi_table_simple *sb = (struct sfi_table_simple *)table;
+ struct sfi_gpio_table_entry *pentry;
+ int num, i;
+
+ if (sfi_gpio_table)
+ return 0;
+
+ num = SFI_GET_NUM_ENTRIES(sb, struct sfi_gpio_table_entry);
+ pentry = (struct sfi_gpio_table_entry *)sb->pentry;
+
+ sfi_gpio_table = kmalloc(num * sizeof(*pentry), GFP_KERNEL);
+ if (!sfi_gpio_table)
+ return -ENOMEM;
+
+ memcpy(sfi_gpio_table, pentry, num * sizeof(*pentry));
+ sfi_gpio_num_entry = num;
+
+ pr_debug("Pin info:\n");
+ for (i = 0; i < num; i++, pentry++)
+ pr_debug("[%2d] chip = %16.16s, name = %16.16s, pin=%d\n", i,
+ pentry->controller_name, pentry->pin_name,
+ pentry->pin_no);
+
+ return 0;
+}
+
+int __init sfi_gpio_init(void)
+{
+ return sfi_table_parse(SFI_SIG_GPIO, NULL, NULL, sfi_gpio_parse);
+}
diff --git a/drivers/sfi/sfi_core.c b/drivers/sfi/sfi_core.c
index 296db7a..2828da0 100644
--- a/drivers/sfi/sfi_core.c
+++ b/drivers/sfi/sfi_core.c
@@ -67,6 +67,7 @@
#include <linux/acpi.h>
#include <linux/init.h>
#include <linux/sfi.h>
+#include <linux/sfi_gpio.h>
#include <linux/slab.h>

#include "sfi_core.h"
@@ -512,6 +513,12 @@ void __init sfi_init_late(void)
syst_va = sfi_map_memory(syst_pa, length);

sfi_acpi_init();
+
+ /*
+ * Parsing GPIO table first, since the DEVS table will need this table
+ * to map the pin name to the actual pin.
+ */
+ sfi_gpio_init();
}

/*
diff --git a/include/linux/sfi_gpio.h b/include/linux/sfi_gpio.h
new file mode 100644
index 0000000..02ae6df
--- /dev/null
+++ b/include/linux/sfi_gpio.h
@@ -0,0 +1,27 @@
+#ifndef _LINUX_SFI_GPIO_H_
+#define _LINUX_SFI_GPIO_H_
+
+#include <linux/errno.h>
+#include <linux/gpio.h>
+#include <linux/sfi.h>
+
+#ifdef CONFIG_GPIO_SFI
+
+int sfi_get_gpio_by_name(const char *name);
+int sfi_gpio_init(void);
+
+#else /* CONFIG_GPIO_SFI */
+
+static inline int sfi_get_gpio_by_name(const char *name);
+{
+ return -ENODEV;
+}
+
+static inline int sfi_gpio_init(void)
+{
+ return -ENODEV;
+}
+
+#endif /* CONFIG_GPIO_SFI */
+
+#endif /* _LINUX_SFI_GPIO_H_ */
--
1.8.2.rc0.22.gb3600c3

2013-06-03 01:59:35

by Ryan Mallon

Subject: Re: [PATCH v1.1] gpiolib: append SFI helpers for GPIO API

On 31/05/13 19:27, Andy Shevchenko wrote:
> To support some (legacy) firmwares and platforms let's make life easier for
> their customers.
>
> This patch extracts SFI GPIO API from arch/x86/platform/mrst/mrst.c.
>
> Signed-off-by: Andy Shevchenko <[email protected]>
> Acked-by: Len Brown <[email protected]>
> Cc: Grant Likely <[email protected]>
> Cc: Linus Walleij <[email protected]>
> ---
> Since v1:
> - address Linus' comments: self-descriptive error codes, removal of __init in
> header, better title in c-file.

Hi Andy,

Some trivial coding style comment below.

~Ryan

>
> drivers/gpio/Kconfig | 4 +++
> drivers/gpio/Makefile | 1 +
> drivers/gpio/gpiolib-sfi.c | 76 ++++++++++++++++++++++++++++++++++++++++++++++
> drivers/sfi/sfi_core.c | 7 +++++
> include/linux/sfi_gpio.h | 27 ++++++++++++++++
> 5 files changed, 115 insertions(+)
> create mode 100644 drivers/gpio/gpiolib-sfi.c
> create mode 100644 include/linux/sfi_gpio.h
>
> diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
> index f471fe8..a615d47 100644
> --- a/drivers/gpio/Kconfig
> +++ b/drivers/gpio/Kconfig
> @@ -51,6 +51,10 @@ config OF_GPIO
> def_bool y
> depends on OF
>
> +config GPIO_SFI
> + def_bool y
> + depends on SFI
> +
> config GPIO_ACPI
> def_bool y
> depends on ACPI
> diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
> index 0cb2d65..63d2abd 100644
> --- a/drivers/gpio/Makefile
> +++ b/drivers/gpio/Makefile
> @@ -5,6 +5,7 @@ ccflags-$(CONFIG_DEBUG_GPIO) += -DDEBUG
> obj-$(CONFIG_GPIO_DEVRES) += devres.o
> obj-$(CONFIG_GPIOLIB) += gpiolib.o
> obj-$(CONFIG_OF_GPIO) += gpiolib-of.o
> +obj-$(CONFIG_GPIO_SFI) += gpiolib-sfi.o
> obj-$(CONFIG_GPIO_ACPI) += gpiolib-acpi.o
>
> # Device drivers. Generally keep list sorted alphabetically
> diff --git a/drivers/gpio/gpiolib-sfi.c b/drivers/gpio/gpiolib-sfi.c
> new file mode 100644
> index 0000000..cccdc0f
> --- /dev/null
> +++ b/drivers/gpio/gpiolib-sfi.c
> @@ -0,0 +1,76 @@
> +/*
> + * Simple Firmware Interface (SFI) helpers for GPIO API
> + *
> + * Copyright (C) 2013, Intel Corporation
> + * Author: Andy Shevchenko <[email protected]>
> + *
> + * Based on work done for Intel MID platforms (mrst.c)
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + */
> +
> +#define pr_fmt(fmt) "SFI: GPIO: " fmt
> +
> +#include <linux/errno.h>
> +#include <linux/kernel.h>
> +#include <linux/string.h>
> +#include <linux/slab.h>
> +#include <linux/gpio.h>
> +#include <linux/export.h>
> +#include <linux/sfi_gpio.h>
> +#include <linux/sfi.h>
> +
> +static struct sfi_gpio_table_entry *sfi_gpio_table;
> +static int sfi_gpio_num_entry;
> +
> +int sfi_get_gpio_by_name(const char *name)
> +{
> + struct sfi_gpio_table_entry *pentry = sfi_gpio_table;
> + int i;
> +
> + if (!pentry)
> + return -EINVAL;
> +
> + for (i = 0; i < sfi_gpio_num_entry; i++, pentry++) {
> + if (!strncmp(name, pentry->pin_name, SFI_NAME_LEN))
> + return pentry->pin_no;
> + }

Nitpick - Don't need the braces on the for loop.

> +
> + return -ENODEV;
> +}
> +EXPORT_SYMBOL_GPL(sfi_get_gpio_by_name);
> +
> +static int __init sfi_gpio_parse(struct sfi_table_header *table)
> +{
> + struct sfi_table_simple *sb = (struct sfi_table_simple *)table;

Using container_of is preferable to casting:

sb = container_of(table, struct sfi_table_simple, header);

> + struct sfi_gpio_table_entry *pentry;
> + int num, i;
> +
> + if (sfi_gpio_table)
> + return 0;
> +
> + num = SFI_GET_NUM_ENTRIES(sb, struct sfi_gpio_table_entry);
> + pentry = (struct sfi_gpio_table_entry *)sb->pentry;
> +
> + sfi_gpio_table = kmalloc(num * sizeof(*pentry), GFP_KERNEL);

Use kcalloc when you have a size and a count.

> + if (!sfi_gpio_table)
> + return -ENOMEM;
> +
> + memcpy(sfi_gpio_table, pentry, num * sizeof(*pentry));
> + sfi_gpio_num_entry = num;
> +
> + pr_debug("Pin info:\n");
> + for (i = 0; i < num; i++, pentry++)
> + pr_debug("[%2d] chip = %16.16s, name = %16.16s, pin=%d\n", i,
> + pentry->controller_name, pentry->pin_name,
> + pentry->pin_no);

Why "%16.16s" here? "%16s" will right justify with leading spaces, or
"%-16s" will left justify with trailing spaces.

> +
> + return 0;
> +}
> +
> +int __init sfi_gpio_init(void)
> +{
> + return sfi_table_parse(SFI_SIG_GPIO, NULL, NULL, sfi_gpio_parse);
> +}
> diff --git a/drivers/sfi/sfi_core.c b/drivers/sfi/sfi_core.c
> index 296db7a..2828da0 100644
> --- a/drivers/sfi/sfi_core.c
> +++ b/drivers/sfi/sfi_core.c
> @@ -67,6 +67,7 @@
> #include <linux/acpi.h>
> #include <linux/init.h>
> #include <linux/sfi.h>
> +#include <linux/sfi_gpio.h>
> #include <linux/slab.h>
>
> #include "sfi_core.h"
> @@ -512,6 +513,12 @@ void __init sfi_init_late(void)
> syst_va = sfi_map_memory(syst_pa, length);
>
> sfi_acpi_init();
> +
> + /*
> + * Parsing GPIO table first, since the DEVS table will need this table
> + * to map the pin name to the actual pin.
> + */
> + sfi_gpio_init();
> }
>
> /*
> diff --git a/include/linux/sfi_gpio.h b/include/linux/sfi_gpio.h
> new file mode 100644
> index 0000000..02ae6df
> --- /dev/null
> +++ b/include/linux/sfi_gpio.h
> @@ -0,0 +1,27 @@
> +#ifndef _LINUX_SFI_GPIO_H_
> +#define _LINUX_SFI_GPIO_H_
> +
> +#include <linux/errno.h>
> +#include <linux/gpio.h>
> +#include <linux/sfi.h>
> +
> +#ifdef CONFIG_GPIO_SFI
> +
> +int sfi_get_gpio_by_name(const char *name);
> +int sfi_gpio_init(void);
> +
> +#else /* CONFIG_GPIO_SFI */
> +
> +static inline int sfi_get_gpio_by_name(const char *name);
> +{
> + return -ENODEV;
> +}
> +
> +static inline int sfi_gpio_init(void)
> +{
> + return -ENODEV;
> +}
> +
> +#endif /* CONFIG_GPIO_SFI */
> +
> +#endif /* _LINUX_SFI_GPIO_H_ */
>

2013-06-03 02:06:23

by Joe Perches

Subject: Re: [PATCH v1.1] gpiolib: append SFI helpers for GPIO API

On Mon, 2013-06-03 at 11:59 +1000, Ryan Mallon wrote:
> On 31/05/13 19:27, Andy Shevchenko wrote:
> Some trivial coding style comment below.
[]
> > + for (i = 0; i < sfi_gpio_num_entry; i++, pentry++) {
> > + if (!strncmp(name, pentry->pin_name, SFI_NAME_LEN))
> > + return pentry->pin_no;
> > + }
>
> Nitpick - Don't need the braces on the for loop.

I'm not Andy but I think it's preferable to keep the braces
when there's an if in the for loop.

> > + sfi_gpio_table = kmalloc(num * sizeof(*pentry), GFP_KERNEL);
>
> Use kcalloc when you have a size and a count.

kmalloc_array unless you want zero'ed memory

> > + for (i = 0; i < num; i++, pentry++)
> > + pr_debug("[%2d] chip = %16.16s, name = %16.16s, pin=%d\n", i,
> > + pentry->controller_name, pentry->pin_name,
> > + pentry->pin_no);
>
> Why "%16.16s" here? "%16s" will right justify with leading spaces, or
> "%-16s" will left justify with trailing spaces.

This limits the emitted length to 16 regardless of
strlen(pentry->controller_name) / strlen(pentry->pin_name)

2013-06-03 07:04:01

by Linus Walleij

Subject: Re: [PATCH v1.1] gpiolib: append SFI helpers for GPIO API

On Fri, May 31, 2013 at 11:27 AM, Andy Shevchenko
<[email protected]> wrote:

> To support some (legacy) firmwares and platforms let's make life easier for
> their customers.
>
> This patch extracts SFI GPIO API from arch/x86/platform/mrst/mrst.c.
>
> Signed-off-by: Andy Shevchenko <[email protected]>
> Acked-by: Len Brown <[email protected]>
> Cc: Grant Likely <[email protected]>
> Cc: Linus Walleij <[email protected]>
> ---
> Since v1:
> - address Linus' comments: self-descriptive error codes, removal of __init in
> header, better title in c-file.

I'm happy with this.

Acked-by: Linus Walleij <[email protected]>

Yours,
Linus Walleij

2013-06-03 08:16:32

by Andy Shevchenko

Subject: Re: [PATCH v1.1] gpiolib: append SFI helpers for GPIO API

On Sun, 2013-06-02 at 19:06 -0700, Joe Perches wrote:
> On Mon, 2013-06-03 at 11:59 +1000, Ryan Mallon wrote:
> > On 31/05/13 19:27, Andy Shevchenko wrote:
> > Some trivial coding style comment below.

Thank you, Joe, for commenting this.

> > > + for (i = 0; i < sfi_gpio_num_entry; i++, pentry++) {
> > > + if (!strncmp(name, pentry->pin_name, SFI_NAME_LEN))
> > > + return pentry->pin_no;
> > > + }
> >
> > Nitpick - Don't need the braces on the for loop.
>
> I'm not Andy but I think it's preferable to keep the braces
> when there's an if in the for loop.

This is my point too.

> > > + sfi_gpio_table = kmalloc(num * sizeof(*pentry), GFP_KERNEL);
> >
> > Use kcalloc when you have a size and a count.
>
> kmalloc_array unless you want zero'ed memory

One proposed to use kmemdup to clean up a bit. What do you think?

--
Andy Shevchenko <[email protected]>
Intel Finland Oy

2013-06-03 12:26:33

by Joe Perches

Subject: Re: [PATCH v1.1] gpiolib: append SFI helpers for GPIO API

On Mon, 2013-06-03 at 11:16 +0300, Andy Shevchenko wrote:
> On Sun, 2013-06-02 at 19:06 -0700, Joe Perches wrote:
> > On Mon, 2013-06-03 at 11:59 +1000, Ryan Mallon wrote:
> > > On 31/05/13 19:27, Andy Shevchenko wrote:
> > > > + sfi_gpio_table = kmalloc(num * sizeof(*pentry), GFP_KERNEL);
> > > Use kcalloc when you have a size and a count.
> > kmalloc_array unless you want zero'ed memory
> One proposed to use kmemdup to clean up a bit. What do you think?

Seems correct to use kmemdup but what validates num?

It seems like a possible error path exists there regardless
of whether kmemdup is used or not.

2013-06-05 13:41:46

by Andy Shevchenko

Subject: Re: [PATCH v1.1] gpiolib: append SFI helpers for GPIO API

On Mon, Jun 3, 2013 at 3:26 PM, Joe Perches <[email protected]> wrote:
> On Mon, 2013-06-03 at 11:16 +0300, Andy Shevchenko wrote:
>> On Sun, 2013-06-02 at 19:06 -0700, Joe Perches wrote:
>> > On Mon, 2013-06-03 at 11:59 +1000, Ryan Mallon wrote:
>> > > On 31/05/13 19:27, Andy Shevchenko wrote:
>> > > > + sfi_gpio_table = kmalloc(num * sizeof(*pentry), GFP_KERNEL);
>> > > Use kcalloc when you have a size and a count.
>> > kmalloc_array unless you want zero'ed memory
>> One proposed to use kmemdup to clean up a bit. What do you think?
>
> Seems correct to use kmemdup but what validates num?

num comes from SFI firmware. We only could rely on what kmalloc/kmemdup returns.

> It seems like a possible error path exists there regardless
> of whether kmemdup is used or not.

That's true. The advantage of kmemdup is an implicit memcpy. Thus, we
could drop away that line.

--
With Best Regards,
Andy Shevchenko