Changes from V1:
- Subdevice specific header files now included in its respective patch.
- Introduces pcf50633_register_irq and pcf50633_free_irq for irq
management
- Many changes in how subdevices are created and information is passed
to them. Thanks to Alessandro Zummo for suggestions.
Changes from V2:
- Changed RTC driver to use new alarm/update interfaces.
- Cosmetic changes in ADC driver.
The following series implements support for NXP PCF50633. It's basically
an I2C device with 9 regulators, an ADC, a PMIC, a Battery Charger
and a RTC.
This chip is used in Openmoko Neo Freerunner mobile phone.
The specs are open and are available at
http://people.openmoko.org/tony_tu/GTA02/datasheet/PMU/PCF50633DS_02.pdf
---
Balaji Rao (7):
mfd: PCF50633 core driver
mfd: PCF50633 adc driver
mfd: PCF50633 gpio support
rtc: PCF50633 rtc driver
power_supply: PCF50633 battery charger driver
input: PCF50633 input driver
regulator: PCF50633 pmic driver
drivers/input/misc/Kconfig | 7
drivers/input/misc/Makefile | 1
drivers/input/misc/pcf50633-input.c | 132 ++++++
drivers/mfd/Kconfig | 23 +
drivers/mfd/Makefile | 6
drivers/mfd/pcf50633-adc.c | 277 ++++++++++++
drivers/mfd/pcf50633-core.c | 710 ++++++++++++++++++++++++++++++++
drivers/mfd/pcf50633-gpio.c | 118 +++++
drivers/power/Kconfig | 6
drivers/power/Makefile | 1
drivers/power/pcf50633-charger.c | 358 ++++++++++++++++
drivers/regulator/Kconfig | 7
drivers/regulator/Makefile | 1
drivers/regulator/pcf50633-regulator.c | 329 +++++++++++++++
drivers/rtc/Kconfig | 7
drivers/rtc/Makefile | 1
drivers/rtc/rtc-pcf50633.c | 344 ++++++++++++++++
include/linux/mfd/pcf50633/adc.h | 72 +++
include/linux/mfd/pcf50633/core.h | 218 ++++++++++
include/linux/mfd/pcf50633/gpio.h | 52 ++
include/linux/mfd/pcf50633/mbc.h | 134 ++++++
include/linux/mfd/pcf50633/pmic.h | 67 +++
22 files changed, 2870 insertions(+), 1 deletions(-)
create mode 100644 drivers/input/misc/pcf50633-input.c
create mode 100644 drivers/mfd/pcf50633-adc.c
create mode 100644 drivers/mfd/pcf50633-core.c
create mode 100644 drivers/mfd/pcf50633-gpio.c
create mode 100644 drivers/power/pcf50633-charger.c
create mode 100644 drivers/regulator/pcf50633-regulator.c
create mode 100644 drivers/rtc/rtc-pcf50633.c
create mode 100644 include/linux/mfd/pcf50633/adc.h
create mode 100644 include/linux/mfd/pcf50633/core.h
create mode 100644 include/linux/mfd/pcf50633/gpio.h
create mode 100644 include/linux/mfd/pcf50633/mbc.h
create mode 100644 include/linux/mfd/pcf50633/pmic.h
--
Thanks,
Balaji Rao
This patch implements the core of the PCF50633 driver. This core driver has
generic register read/write functions and does interrupt management for its
sub devices.
Signed-off-by: Balaji Rao <[email protected]>
Cc: Andy Green <[email protected]>
Cc: Samuel Ortiz <[email protected]>
---
drivers/mfd/Kconfig | 9
drivers/mfd/Makefile | 4
drivers/mfd/pcf50633-core.c | 710 +++++++++++++++++++++++++++++++++++++
include/linux/mfd/pcf50633/core.h | 218 +++++++++++
4 files changed, 940 insertions(+), 1 deletions(-)
create mode 100644 drivers/mfd/pcf50633-core.c
create mode 100644 include/linux/mfd/pcf50633/core.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 2572773..73f4aeb 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -153,6 +153,15 @@ config MFD_WM8350_I2C
I2C as the control interface. Additional options must be
selected to enable support for the functionality of the chip.
+config MFD_PCF50633
+ tristate "Support for NXP PCF50633"
+ depends on I2C
+ help
+ Say yes here if you have NXP PCF50633 chip on your board.
+ This core driver provides register access and IRQ handling
+ facilities, and registers devices for the various functions
+ so that function-specific drivers can bind to them.
+
endmenu
menu "Multimedia Capabilities Port drivers"
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 9a5ad8a..6a4add8 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -31,4 +31,6 @@ obj-$(CONFIG_MCP_UCB1200) += ucb1x00-assabet.o
endif
obj-$(CONFIG_UCB1400_CORE) += ucb1400_core.o
-obj-$(CONFIG_PMIC_DA903X) += da903x.o
\ No newline at end of file
+obj-$(CONFIG_PMIC_DA903X) += da903x.o
+
+obj-$(CONFIG_MFD_PCF50633) += pcf50633-core.o
diff --git a/drivers/mfd/pcf50633-core.c b/drivers/mfd/pcf50633-core.c
new file mode 100644
index 0000000..24508e2
--- /dev/null
+++ b/drivers/mfd/pcf50633-core.c
@@ -0,0 +1,710 @@
+/* NXP PCF50633 Power Management Unit (PMU) driver
+ *
+ * (C) 2006-2008 by Openmoko, Inc.
+ * Author: Harald Welte <[email protected]>
+ * Balaji Rao <[email protected]>
+ * All rights reserved.
+ *
+ * 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; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/sysfs.h>
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/workqueue.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/irq.h>
+
+#include <linux/mfd/pcf50633/core.h>
+
+/* Two MBCS registers used during cold start */
+#define PCF50633_REG_MBCS1 0x4b
+#define PCF50633_REG_MBCS2 0x4c
+#define PCF50633_MBCS1_USBPRES 0x01
+#define PCF50633_MBCS1_ADAPTPRES 0x01
+
+static int __pcf50633_read(struct pcf50633 *pcf, u8 reg, int num, u8 *data)
+{
+ int ret;
+
+ ret = i2c_smbus_read_i2c_block_data(pcf->i2c_client, reg,
+ num, data);
+ if (ret < 0)
+ dev_err(pcf->dev, "Error reading %d regs at %d\n", num, reg);
+
+ return ret;
+}
+
+static int __pcf50633_write(struct pcf50633 *pcf, u8 reg, int num, u8 *data)
+{
+ int ret;
+
+ ret = i2c_smbus_write_i2c_block_data(pcf->i2c_client, reg,
+ num, data);
+ if (ret < 0)
+ dev_err(pcf->dev, "Error writing %d regs at %d\n", num, reg);
+
+ return ret;
+
+}
+
+/* Read a block of upto 32 regs */
+int pcf50633_read_block(struct pcf50633 *pcf, u8 reg,
+ int nr_regs, u8 *data)
+{
+ int ret;
+
+ mutex_lock(&pcf->lock);
+ ret = __pcf50633_read(pcf, reg, nr_regs, data);
+ mutex_unlock(&pcf->lock);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(pcf50633_read_block);
+
+/* Write a block of upto 32 regs */
+int pcf50633_write_block(struct pcf50633 *pcf , u8 reg,
+ int nr_regs, u8 *data)
+{
+ int ret;
+
+ mutex_lock(&pcf->lock);
+ ret = __pcf50633_write(pcf, reg, nr_regs, data);
+ mutex_unlock(&pcf->lock);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(pcf50633_write_block);
+
+u8 pcf50633_reg_read(struct pcf50633 *pcf, u8 reg)
+{
+ u8 val;
+
+ mutex_lock(&pcf->lock);
+ __pcf50633_read(pcf, reg, 1, &val);
+ mutex_unlock(&pcf->lock);
+
+ return val;
+}
+EXPORT_SYMBOL_GPL(pcf50633_reg_read);
+
+int pcf50633_reg_write(struct pcf50633 *pcf, u8 reg, u8 val)
+{
+ int ret;
+
+ mutex_lock(&pcf->lock);
+ ret = __pcf50633_write(pcf, reg, 1, &val);
+ mutex_unlock(&pcf->lock);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(pcf50633_reg_write);
+
+int pcf50633_reg_set_bit_mask(struct pcf50633 *pcf, u8 reg, u8 mask, u8 val)
+{
+ int ret;
+ u8 tmp;
+
+ val &= mask;
+
+ mutex_lock(&pcf->lock);
+ ret = __pcf50633_read(pcf, reg, 1, &tmp);
+ if (ret < 0)
+ goto out;
+
+ tmp &= ~mask;
+ tmp |= val;
+ ret = __pcf50633_write(pcf, reg, 1, &tmp);
+
+out:
+ mutex_unlock(&pcf->lock);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(pcf50633_reg_set_bit_mask);
+
+int pcf50633_reg_clear_bits(struct pcf50633 *pcf, u8 reg, u8 val)
+{
+ int ret;
+ u8 tmp;
+
+ mutex_lock(&pcf->lock);
+ ret = __pcf50633_read(pcf, reg, 1, &tmp);
+ if (ret < 0)
+ goto out;
+
+ tmp &= ~val;
+ ret = __pcf50633_write(pcf, reg, 1, &tmp);
+
+out:
+ mutex_unlock(&pcf->lock);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(pcf50633_reg_clear_bits);
+
+/* sysfs attributes */
+static ssize_t show_dump_regs(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct pcf50633 *pcf = dev_get_drvdata(dev);
+ u8 dump[16];
+ int n, n1, idx = 0;
+ char *buf1 = buf;
+ static u8 address_no_read[] = { /* must be ascending */
+ PCF50633_REG_INT1,
+ PCF50633_REG_INT2,
+ PCF50633_REG_INT3,
+ PCF50633_REG_INT4,
+ PCF50633_REG_INT5,
+ 0 /* terminator */
+ };
+
+ for (n = 0; n < 256; n += sizeof(dump)) {
+ for (n1 = 0; n1 < sizeof(dump); n1++)
+ if (n == address_no_read[idx]) {
+ idx++;
+ dump[n1] = 0x00;
+ } else
+ dump[n1] = pcf50633_reg_read(pcf, n + n1);
+
+ hex_dump_to_buffer(dump, sizeof(dump), 16, 1, buf1, 128, 0);
+ buf1 += strlen(buf1);
+ *buf1++ = '\n';
+ *buf1 = '\0';
+ }
+
+ return buf1 - buf;
+}
+static DEVICE_ATTR(dump_regs, 0400, show_dump_regs, NULL);
+
+static ssize_t show_resume_reason(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct pcf50633 *pcf = dev_get_drvdata(dev);
+ int n;
+
+ n = sprintf(buf, "%02x%02x%02x%02x%02x\n",
+ pcf->resume_reason[0],
+ pcf->resume_reason[1],
+ pcf->resume_reason[2],
+ pcf->resume_reason[3],
+ pcf->resume_reason[4]);
+
+ return n;
+}
+static DEVICE_ATTR(resume_reason, 0400, show_resume_reason, NULL);
+
+static struct attribute *pcf_sysfs_entries[] = {
+ &dev_attr_dump_regs.attr,
+ &dev_attr_resume_reason.attr,
+ NULL,
+};
+
+static struct attribute_group pcf_attr_group = {
+ .name = NULL, /* put in device directory */
+ .attrs = pcf_sysfs_entries,
+};
+
+int pcf50633_register_irq(struct pcf50633 *pcf, int irq,
+ void (*handler) (int, void *), void *data)
+{
+ if (irq < 0 || irq > PCF50633_NUM_IRQ || !handler)
+ return -EINVAL;
+
+ if (WARN_ON(pcf->irq_handler[irq].handler))
+ return -EBUSY;
+
+ mutex_lock(&pcf->lock);
+ pcf->irq_handler[irq].handler = handler;
+ pcf->irq_handler[irq].data = data;
+ mutex_unlock(&pcf->lock);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(pcf50633_register_irq);
+
+int pcf50633_free_irq(struct pcf50633 *pcf, int irq)
+{
+ if (irq < 0 || irq > PCF50633_NUM_IRQ)
+ return -EINVAL;
+
+ mutex_lock(&pcf->lock);
+ pcf->irq_handler[irq].handler = NULL;
+ mutex_unlock(&pcf->lock);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(pcf50633_free_irq);
+
+static int __pcf50633_irq_mask_set(struct pcf50633 *pcf, int irq, u8 mask)
+{
+ u8 reg, bits, tmp;
+ int ret = 0, idx;
+
+ idx = irq >> 3;
+ reg = PCF50633_REG_INT1M + idx;
+ bits = 1 << (irq & 0x07);
+
+ mutex_lock(&pcf->lock);
+
+ if (mask) {
+ ret = __pcf50633_read(pcf, reg, 1, &tmp);
+ if (ret < 0)
+ goto out;
+
+ tmp |= bits;
+
+ ret = __pcf50633_write(pcf, reg, 1, &tmp);
+ if (ret < 0)
+ goto out;
+
+ pcf->mask_regs[idx] &= ~bits;
+ pcf->mask_regs[idx] |= bits;
+ } else {
+ ret = __pcf50633_read(pcf, reg, 1, &tmp);
+ if (ret < 0)
+ goto out;
+
+ tmp &= ~bits;
+
+ ret = __pcf50633_write(pcf, reg, 1, &tmp);
+ if (ret < 0)
+ goto out;
+
+ pcf->mask_regs[idx] &= ~bits;
+ }
+out:
+ mutex_unlock(&pcf->lock);
+
+ return ret;
+}
+
+int pcf50633_irq_mask(struct pcf50633 *pcf, int irq)
+{
+ dev_info(pcf->dev, "Masking IRQ %d\n", irq);
+
+ return __pcf50633_irq_mask_set(pcf, irq, 1);
+}
+EXPORT_SYMBOL_GPL(pcf50633_irq_mask);
+
+int pcf50633_irq_unmask(struct pcf50633 *pcf, int irq)
+{
+ dev_info(pcf->dev, "Unmasking IRQ %d\n", irq);
+
+ return __pcf50633_irq_mask_set(pcf, irq, 0);
+}
+EXPORT_SYMBOL_GPL(pcf50633_irq_unmask);
+
+int pcf50633_irq_mask_get(struct pcf50633 *pcf, int irq)
+{
+ u8 reg, bits;
+
+ reg = irq >> 3;
+ bits = 1 << (irq & 0x07);
+
+ return pcf->mask_regs[reg] & bits;
+}
+EXPORT_SYMBOL_GPL(pcf50633_irq_mask_get);
+
+static void pcf50633_irq_call_handler(struct pcf50633 *pcf, int irq)
+{
+ if (pcf->irq_handler[irq].handler)
+ pcf->irq_handler[irq].handler(irq, pcf->irq_handler[irq].data);
+}
+
+/* Maximum amount of time ONKEY is held before emergency action is taken */
+#define PCF50633_ONKEY1S_TIMEOUT 8
+
+static void pcf50633_irq_worker(struct work_struct *work)
+{
+ struct pcf50633 *pcf;
+ int ret, i, j;
+ u8 pcf_int[5], chgstat;
+
+ pcf = container_of(work, struct pcf50633, irq_work);
+
+ /* Read the 5 INT regs in one transaction */
+ ret = pcf50633_read_block(pcf, PCF50633_REG_INT1,
+ ARRAY_SIZE(pcf_int), pcf_int);
+ if (ret != ARRAY_SIZE(pcf_int)) {
+ dev_err(pcf->dev, "Error reading INT registers\n");
+
+ /*
+ * If this doesn't ACK the interrupt to the chip, we'll be
+ * called once again as we're level triggered.
+ */
+ goto out;
+ }
+
+ /* We immediately read the usb and adapter status. We thus make sure
+ * only of USBINS/USBREM IRQ handlers are called */
+ if (pcf_int[0] & (PCF50633_INT1_USBINS | PCF50633_INT1_USBREM)) {
+ chgstat = pcf50633_reg_read(pcf, PCF50633_REG_MBCS2);
+ if (chgstat & (0x3 << 4))
+ pcf_int[0] &= ~(1 << PCF50633_INT1_USBREM);
+ else
+ pcf_int[0] &= ~(1 << PCF50633_INT1_USBINS);
+ }
+
+ /* Make sure only one of ADPINS or ADPREM is set */
+ if (pcf_int[0] & (PCF50633_INT1_ADPINS | PCF50633_INT1_ADPREM)) {
+ chgstat = pcf50633_reg_read(pcf, PCF50633_REG_MBCS2);
+ if (chgstat & (0x3 << 4))
+ pcf_int[0] &= ~(1 << PCF50633_INT1_ADPREM);
+ else
+ pcf_int[0] &= ~(1 << PCF50633_INT1_ADPINS);
+ }
+
+ dev_dbg(pcf->dev, "INT1=0x%02x INT2=0x%02x INT3=0x%02x "
+ "INT4=0x%02x INT5=0x%02x\n", pcf_int[0],
+ pcf_int[1], pcf_int[2], pcf_int[3], pcf_int[4]);
+
+ /* Some revisions of the chip don't have a 8s standby mode on
+ * ONKEY1S press. We try to manually do it in such cases. */
+ if ((pcf_int[0] & PCF50633_INT1_SECOND) && pcf->onkey1s_held) {
+ dev_info(pcf->dev, "ONKEY1S held for %d secs\n",
+ pcf->onkey1s_held);
+ if (pcf->onkey1s_held++ == PCF50633_ONKEY1S_TIMEOUT)
+ if (pcf->pdata->force_shutdown)
+ pcf->pdata->force_shutdown(pcf);
+ }
+
+ if (pcf_int[2] & PCF50633_INT3_ONKEY1S) {
+ dev_info(pcf->dev, "ONKEY1S held\n");
+ pcf->onkey1s_held = 1 ;
+
+ /* Unmask IRQ_SECOND */
+ pcf50633_reg_clear_bits(pcf, PCF50633_REG_INT1M,
+ PCF50633_INT1_SECOND);
+
+ /* Unmask IRQ_ONKEYR */
+ pcf50633_reg_clear_bits(pcf, PCF50633_REG_INT2M,
+ PCF50633_INT2_ONKEYR);
+ }
+
+ if ((pcf_int[1] & PCF50633_INT2_ONKEYR) && pcf->onkey1s_held) {
+ pcf->onkey1s_held = 0;
+
+ /* Mask SECOND and ONKEYR interrupts */
+ if (pcf->mask_regs[0] & PCF50633_INT1_SECOND)
+ pcf50633_reg_set_bit_mask(pcf,
+ PCF50633_REG_INT1M,
+ PCF50633_INT1_SECOND,
+ PCF50633_INT1_SECOND);
+
+ if (pcf->mask_regs[1] & PCF50633_INT2_ONKEYR)
+ pcf50633_reg_set_bit_mask(pcf,
+ PCF50633_REG_INT2M,
+ PCF50633_INT2_ONKEYR,
+ PCF50633_INT2_ONKEYR);
+ }
+
+ /* Have we just resumed ? */
+ if (pcf->is_suspended) {
+ pcf->is_suspended = 0;
+
+ /* Set the resume reason filtering out non resumers */
+ for (i = 0; i < ARRAY_SIZE(pcf_int); i++)
+ pcf->resume_reason[i] = pcf_int[i] &
+ pcf->pdata->resumers[i];
+
+ /* Make sure we don't pass on any ONKEY events to
+ * userspace now */
+ pcf_int[1] &= ~(PCF50633_INT2_ONKEYR | PCF50633_INT2_ONKEYF);
+ }
+
+ for (i = 0; i < ARRAY_SIZE(pcf_int); i++) {
+ /* Unset masked interrupts */
+ pcf_int[i] &= ~pcf->mask_regs[i];
+
+ for (j = 0; j < 8 ; j++)
+ if (pcf_int[i] & (1 << j))
+ pcf50633_irq_call_handler(pcf, (i * 8) + j);
+ }
+
+out:
+ put_device(pcf->dev);
+ enable_irq(pcf->irq);
+}
+
+static irqreturn_t pcf50633_irq(int irq, void *data)
+{
+ struct pcf50633 *pcf = data;
+
+ dev_dbg(pcf->dev, "pcf50633_irq\n");
+
+ get_device(pcf->dev);
+ disable_irq(pcf->irq);
+ schedule_work(&pcf->irq_work);
+
+ return IRQ_HANDLED;
+}
+
+static void
+pcf50633_client_dev_register(struct pcf50633 *pcf, const char *name,
+ struct platform_device **pdev)
+{
+ struct pcf50633_subdev_pdata *subdev_pdata;
+ int ret;
+
+ *pdev = platform_device_alloc(name, -1);
+ if (!*pdev) {
+ dev_err(pcf->dev, "Falied to allocate %s\n", name);
+ return;
+ }
+
+ subdev_pdata = kmalloc(sizeof(*subdev_pdata), GFP_KERNEL);
+ if (!subdev_pdata) {
+ dev_err(pcf->dev, "Error allocating subdev pdata\n");
+ platform_device_put(*pdev);
+ }
+
+ subdev_pdata->pcf = pcf;
+ platform_device_add_data(*pdev, subdev_pdata, sizeof(*subdev_pdata));
+
+ (*pdev)->dev.parent = pcf->dev;
+
+ ret = platform_device_add(*pdev);
+ if (ret) {
+ dev_err(pcf->dev, "Failed to register %s: %d\n", name, ret);
+ platform_device_put(*pdev);
+ *pdev = NULL;
+ }
+}
+
+#ifdef CONFIG_PM
+static int pcf50633_suspend(struct device *dev, pm_message_t state)
+{
+ struct pcf50633 *pcf;
+ int ret = 0, i;
+ u8 res[5];
+
+ pcf = dev_get_drvdata(dev);
+
+ /* Make sure our interrupt handlers are not called
+ * henceforth */
+ disable_irq(pcf->irq);
+
+ /* Make sure that any running IRQ worker has quit */
+ cancel_work_sync(&pcf->irq_work);
+
+ /* Save the masks */
+ ret = pcf50633_read_block(pcf, PCF50633_REG_INT1M,
+ ARRAY_SIZE(pcf->suspend_irq_masks),
+ pcf->suspend_irq_masks);
+ if (ret < 0) {
+ dev_err(pcf->dev, "error saving irq masks\n");
+ goto out;
+ }
+
+ /* Write wakeup irq masks */
+ for (i = 0; i < ARRAY_SIZE(res); i++)
+ res[i] = ~pcf->pdata->resumers[i];
+
+ ret = pcf50633_write_block(pcf, PCF50633_REG_INT1M,
+ ARRAY_SIZE(res), &res[0]);
+ if (ret < 0) {
+ dev_err(pcf->dev, "error writing wakeup irq masks\n");
+ goto out;
+ }
+
+ pcf->is_suspended = 1;
+
+out:
+ return ret;
+}
+
+static int pcf50633_resume(struct device *dev)
+{
+ struct pcf50633 *pcf;
+ int ret;
+
+ pcf = dev_get_drvdata(dev);
+
+ /* Write the saved mask registers */
+ ret = pcf50633_write_block(pcf, PCF50633_REG_INT1M,
+ ARRAY_SIZE(pcf->suspend_irq_masks),
+ pcf->suspend_irq_masks);
+ if (ret < 0)
+ dev_err(pcf->dev, "Error restoring saved suspend masks\n");
+
+ /* Restore regulators' state */
+
+
+ get_device(pcf->dev);
+
+ /*
+ * Clear any pending interrupts and set resume reason if any.
+ * This will leave with enable_irq()
+ */
+ pcf50633_irq_worker(&pcf->irq_work);
+
+ return 0;
+}
+#else
+#define pcf50633_suspend NULL
+#define pcf50633_resume NULL
+#endif
+
+static int __devinit pcf50633_probe(struct i2c_client *client,
+ const struct i2c_device_id *ids)
+{
+ struct pcf50633 *pcf;
+ struct pcf50633_platform_data *pdata = client->dev.platform_data;
+ int i, ret = 0;
+ int version, variant;
+
+ pcf = kzalloc(sizeof(*pcf), GFP_KERNEL);
+ if (!pcf)
+ return -ENOMEM;
+
+ pcf->pdata = pdata;
+
+ mutex_init(&pcf->lock);
+
+ i2c_set_clientdata(client, pcf);
+ pcf->dev = &client->dev;
+ pcf->i2c_client = client;
+ pcf->irq = client->irq;
+
+ INIT_WORK(&pcf->irq_work, pcf50633_irq_worker);
+
+ version = pcf50633_reg_read(pcf, 0);
+ variant = pcf50633_reg_read(pcf, 1);
+ if (version < 0 || variant < 0) {
+ dev_err(pcf->dev, "Unable to probe pcf50633\n");
+ ret = -ENODEV;
+ goto err;
+ }
+
+ dev_info(pcf->dev, "Probed device version %d variant %d\n",
+ version, variant);
+
+ /* Enable all interrupts except RTC SECOND */
+ pcf->mask_regs[0] = 0x80;
+ pcf50633_reg_write(pcf, PCF50633_REG_INT1M, pcf->mask_regs[0]);
+ pcf50633_reg_write(pcf, PCF50633_REG_INT2M, 0x00);
+ pcf50633_reg_write(pcf, PCF50633_REG_INT3M, 0x00);
+ pcf50633_reg_write(pcf, PCF50633_REG_INT4M, 0x00);
+ pcf50633_reg_write(pcf, PCF50633_REG_INT5M, 0x00);
+
+ /* Create sub devices */
+ pcf50633_client_dev_register(pcf, "pcf50633-input",
+ &pcf->input_pdev);
+ pcf50633_client_dev_register(pcf, "pcf50633-rtc",
+ &pcf->rtc_pdev);
+ pcf50633_client_dev_register(pcf, "pcf50633-mbc",
+ &pcf->mbc_pdev);
+ pcf50633_client_dev_register(pcf, "pcf50633-adc",
+ &pcf->adc_pdev);
+
+ for (i = 0; i < PCF50633_NUM_REGULATORS; i++) {
+ struct platform_device *pdev;
+
+ pdev = platform_device_alloc("pcf50633-regltr", i);
+ if (!pdev) {
+ dev_err(pcf->dev, "Cannot create regulator\n");
+ continue;
+ }
+
+ pdev->dev.parent = pcf->dev;
+ pdev->dev.platform_data = &pdata->reg_init_data[i];
+ pdev->dev.driver_data = pcf;
+ pcf->regulator_pdev[i] = pdev;
+
+ platform_device_add(pdev);
+ }
+
+ if (client->irq) {
+ set_irq_handler(client->irq, handle_level_irq);
+ ret = request_irq(client->irq, pcf50633_irq,
+ IRQF_TRIGGER_LOW, "pcf50633", pcf);
+
+ if (ret) {
+ dev_err(pcf->dev, "Failed to request IRQ %d\n", ret);
+ goto err;
+ }
+ } else {
+ dev_err(pcf->dev, "No IRQ configured\n");
+ goto err;
+ }
+
+ if (enable_irq_wake(client->irq) < 0)
+ dev_err(pcf->dev, "IRQ %u cannot be enabled as wake-up source"
+ "in this hardware revision", client->irq);
+
+ ret = sysfs_create_group(&client->dev.kobj, &pcf_attr_group);
+ if (ret)
+ dev_err(pcf->dev, "error creating sysfs entries\n");
+
+ if (pdata->probe_done)
+ pdata->probe_done(pcf);
+
+ return 0;
+
+err:
+ kfree(pcf);
+ return ret;
+}
+
+static int __devexit pcf50633_remove(struct i2c_client *client)
+{
+ struct pcf50633 *pcf = i2c_get_clientdata(client);
+ int i;
+
+ free_irq(pcf->irq, pcf);
+
+ platform_device_unregister(pcf->input_pdev);
+ platform_device_unregister(pcf->rtc_pdev);
+ platform_device_unregister(pcf->mbc_pdev);
+ platform_device_unregister(pcf->adc_pdev);
+
+ for (i = 0; i < PCF50633_NUM_REGULATORS; i++)
+ platform_device_unregister(pcf->regulator_pdev[i]);
+
+ kfree(pcf);
+
+ return 0;
+}
+
+static struct i2c_device_id pcf50633_id_table[] = {
+ {"pcf50633", 0x73},
+};
+
+static struct i2c_driver pcf50633_driver = {
+ .driver = {
+ .name = "pcf50633",
+ .suspend = pcf50633_suspend,
+ .resume = pcf50633_resume,
+ },
+ .id_table = pcf50633_id_table,
+ .probe = pcf50633_probe,
+ .remove = __devexit_p(pcf50633_remove),
+};
+
+static int __init pcf50633_init(void)
+{
+ return i2c_add_driver(&pcf50633_driver);
+}
+
+static void __exit pcf50633_exit(void)
+{
+ i2c_del_driver(&pcf50633_driver);
+}
+
+MODULE_DESCRIPTION("I2C chip driver for NXP PCF50633 PMU");
+MODULE_AUTHOR("Harald Welte <[email protected]>");
+MODULE_LICENSE("GPL");
+
+module_init(pcf50633_init);
+module_exit(pcf50633_exit);
diff --git a/include/linux/mfd/pcf50633/core.h b/include/linux/mfd/pcf50633/core.h
new file mode 100644
index 0000000..4455b21
--- /dev/null
+++ b/include/linux/mfd/pcf50633/core.h
@@ -0,0 +1,218 @@
+/*
+ * core.h -- Core driver for NXP PCF50633
+ *
+ * (C) 2006-2008 by Openmoko, Inc.
+ * All rights reserved.
+ *
+ * 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; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __LINUX_MFD_PCF50633_CORE_H
+#define __LINUX_MFD_PCF50633_CORE_H
+
+#include <linux/i2c.h>
+#include <linux/workqueue.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/power_supply.h>
+
+struct pcf50633;
+
+#define PCF50633_NUM_REGULATORS 11
+
+struct pcf50633_platform_data {
+ struct regulator_init_data reg_init_data[PCF50633_NUM_REGULATORS];
+
+ char **batteries;
+ int num_batteries;
+
+ /* Callbacks */
+ void (*probe_done)(struct pcf50633 *);
+ void (*mbc_event_callback)(struct pcf50633 *, int);
+ void (*regulator_registered)(struct pcf50633 *, int);
+ void (*force_shutdown)(struct pcf50633 *);
+
+ u8 resumers[5];
+};
+
+struct pcf50633_subdev_pdata {
+ struct pcf50633 *pcf;
+};
+
+struct pcf50633_irq {
+ void (*handler) (int, void *);
+ void *data;
+};
+
+int pcf50633_register_irq(struct pcf50633 *pcf, int irq,
+ void (*handler) (int, void *), void *data);
+int pcf50633_free_irq(struct pcf50633 *pcf, int irq);
+
+int pcf50633_irq_mask(struct pcf50633 *pcf, int irq);
+int pcf50633_irq_unmask(struct pcf50633 *pcf, int irq);
+int pcf50633_irq_mask_get(struct pcf50633 *pcf, int irq);
+
+int pcf50633_read_block(struct pcf50633 *, u8 reg,
+ int nr_regs, u8 *data);
+int pcf50633_write_block(struct pcf50633 *pcf, u8 reg,
+ int nr_regs, u8 *data);
+u8 pcf50633_reg_read(struct pcf50633 *, u8 reg);
+int pcf50633_reg_write(struct pcf50633 *pcf, u8 reg, u8 val);
+
+int pcf50633_reg_set_bit_mask(struct pcf50633 *pcf, u8 reg, u8 mask, u8 val);
+int pcf50633_reg_clear_bits(struct pcf50633 *pcf, u8 reg, u8 bits);
+
+/* Interrupt registers */
+
+#define PCF50633_REG_INT1 0x02
+#define PCF50633_REG_INT2 0x03
+#define PCF50633_REG_INT3 0x04
+#define PCF50633_REG_INT4 0x05
+#define PCF50633_REG_INT5 0x06
+
+#define PCF50633_REG_INT1M 0x07
+#define PCF50633_REG_INT2M 0x08
+#define PCF50633_REG_INT3M 0x09
+#define PCF50633_REG_INT4M 0x0a
+#define PCF50633_REG_INT5M 0x0b
+
+enum {
+ /* Chip IRQs */
+ PCF50633_IRQ_ADPINS,
+ PCF50633_IRQ_ADPREM,
+ PCF50633_IRQ_USBINS,
+ PCF50633_IRQ_USBREM,
+ PCF50633_IRQ_RESERVED1,
+ PCF50633_IRQ_RESERVED2,
+ PCF50633_IRQ_ALARM,
+ PCF50633_IRQ_SECOND,
+ PCF50633_IRQ_ONKEYR,
+ PCF50633_IRQ_ONKEYF,
+ PCF50633_IRQ_EXTON1R,
+ PCF50633_IRQ_EXTON1F,
+ PCF50633_IRQ_EXTON2R,
+ PCF50633_IRQ_EXTON2F,
+ PCF50633_IRQ_EXTON3R,
+ PCF50633_IRQ_EXTON3F,
+ PCF50633_IRQ_BATFULL,
+ PCF50633_IRQ_CHGHALT,
+ PCF50633_IRQ_THLIMON,
+ PCF50633_IRQ_THLIMOFF,
+ PCF50633_IRQ_USBLIMON,
+ PCF50633_IRQ_USBLIMOFF,
+ PCF50633_IRQ_ADCRDY,
+ PCF50633_IRQ_ONKEY1S,
+ PCF50633_IRQ_LOWSYS,
+ PCF50633_IRQ_LOWBAT,
+ PCF50633_IRQ_HIGHTMP,
+ PCF50633_IRQ_AUTOPWRFAIL,
+ PCF50633_IRQ_DWN1PWRFAIL,
+ PCF50633_IRQ_DWN2PWRFAIL,
+ PCF50633_IRQ_LEDPWRFAIL,
+ PCF50633_IRQ_LEDOVP,
+ PCF50633_IRQ_LDO1PWRFAIL,
+ PCF50633_IRQ_LDO2PWRFAIL,
+ PCF50633_IRQ_LDO3PWRFAIL,
+ PCF50633_IRQ_LDO4PWRFAIL,
+ PCF50633_IRQ_LDO5PWRFAIL,
+ PCF50633_IRQ_LDO6PWRFAIL,
+ PCF50633_IRQ_HCLDOPWRFAIL,
+ PCF50633_IRQ_HCLDOOVL,
+
+ /* Always last */
+ PCF50633_NUM_IRQ,
+};
+
+struct pcf50633 {
+ struct device *dev;
+ struct i2c_client *i2c_client;
+
+ struct pcf50633_platform_data *pdata;
+ int irq;
+ struct pcf50633_irq irq_handler[PCF50633_NUM_IRQ];
+ struct work_struct irq_work;
+ struct mutex lock;
+
+ u8 mask_regs[5];
+
+ u8 suspend_irq_masks[5];
+ u8 resume_reason[5];
+ int is_suspended;
+
+ int onkey1s_held;
+
+ struct platform_device *rtc_pdev;
+ struct platform_device *mbc_pdev;
+ struct platform_device *adc_pdev;
+ struct platform_device *input_pdev;
+ struct platform_device *regulator_pdev[PCF50633_NUM_REGULATORS];
+};
+
+enum pcf50633_reg_int1 {
+ PCF50633_INT1_ADPINS = 0x01, /* Adapter inserted */
+ PCF50633_INT1_ADPREM = 0x02, /* Adapter removed */
+ PCF50633_INT1_USBINS = 0x04, /* USB inserted */
+ PCF50633_INT1_USBREM = 0x08, /* USB removed */
+ /* reserved */
+ PCF50633_INT1_ALARM = 0x40, /* RTC alarm time is reached */
+ PCF50633_INT1_SECOND = 0x80, /* RTC periodic second interrupt */
+};
+
+enum pcf50633_reg_int2 {
+ PCF50633_INT2_ONKEYR = 0x01, /* ONKEY rising edge */
+ PCF50633_INT2_ONKEYF = 0x02, /* ONKEY falling edge */
+ PCF50633_INT2_EXTON1R = 0x04, /* EXTON1 rising edge */
+ PCF50633_INT2_EXTON1F = 0x08, /* EXTON1 falling edge */
+ PCF50633_INT2_EXTON2R = 0x10, /* EXTON2 rising edge */
+ PCF50633_INT2_EXTON2F = 0x20, /* EXTON2 falling edge */
+ PCF50633_INT2_EXTON3R = 0x40, /* EXTON3 rising edge */
+ PCF50633_INT2_EXTON3F = 0x80, /* EXTON3 falling edge */
+};
+
+enum pcf50633_reg_int3 {
+ PCF50633_INT3_BATFULL = 0x01, /* Battery full */
+ PCF50633_INT3_CHGHALT = 0x02, /* Charger halt */
+ PCF50633_INT3_THLIMON = 0x04,
+ PCF50633_INT3_THLIMOFF = 0x08,
+ PCF50633_INT3_USBLIMON = 0x10,
+ PCF50633_INT3_USBLIMOFF = 0x20,
+ PCF50633_INT3_ADCRDY = 0x40, /* ADC result ready */
+ PCF50633_INT3_ONKEY1S = 0x80, /* ONKEY pressed 1 second */
+};
+
+enum pcf50633_reg_int4 {
+ PCF50633_INT4_LOWSYS = 0x01,
+ PCF50633_INT4_LOWBAT = 0x02,
+ PCF50633_INT4_HIGHTMP = 0x04,
+ PCF50633_INT4_AUTOPWRFAIL = 0x08,
+ PCF50633_INT4_DWN1PWRFAIL = 0x10,
+ PCF50633_INT4_DWN2PWRFAIL = 0x20,
+ PCF50633_INT4_LEDPWRFAIL = 0x40,
+ PCF50633_INT4_LEDOVP = 0x80,
+};
+
+enum pcf50633_reg_int5 {
+ PCF50633_INT5_LDO1PWRFAIL = 0x01,
+ PCF50633_INT5_LDO2PWRFAIL = 0x02,
+ PCF50633_INT5_LDO3PWRFAIL = 0x04,
+ PCF50633_INT5_LDO4PWRFAIL = 0x08,
+ PCF50633_INT5_LDO5PWRFAIL = 0x10,
+ PCF50633_INT5_LDO6PWRFAIL = 0x20,
+ PCF50633_INT5_HCLDOPWRFAIL = 0x40,
+ PCF50633_INT5_HCLDOOVL = 0x80,
+};
+
+/* misc. registers */
+#define PCF50633_REG_OOCSHDWN 0x0c
+
+/* LED registers */
+#define PCF50633_REG_LEDOUT 0x28
+#define PCF50633_REG_LEDENA 0x29
+#define PCF50633_REG_LEDCTL 0x2a
+#define PCF50633_REG_LEDDIM 0x2b
+
+#endif
+
This patch adds basic support for the PCF50633 ADC. The subtractive mode
is not supported yet.
Since we don't have adc subsystem, it currently lives in drivers/mfd.
Signed-off-by: Balaji Rao <[email protected]>
Cc: Andy Green <[email protected]>
Cc: Samuel Ortiz <[email protected]>
Acked-by: Jonathan Cameron <[email protected]>
---
drivers/mfd/Kconfig | 7 +
drivers/mfd/Makefile | 1
drivers/mfd/pcf50633-adc.c | 277 ++++++++++++++++++++++++++++++++++++++
include/linux/mfd/pcf50633/adc.h | 72 ++++++++++
4 files changed, 357 insertions(+), 0 deletions(-)
create mode 100644 drivers/mfd/pcf50633-adc.c
create mode 100644 include/linux/mfd/pcf50633/adc.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 73f4aeb..3af4cd1 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -162,6 +162,13 @@ config MFD_PCF50633
facilities, and registers devices for the various functions
so that function-specific drivers can bind to them.
+config PCF50633_ADC
+ tristate "Support for NXP PCF50633 ADC"
+ depends on MFD_PCF50633
+ help
+ Say yes here if you want to include support for ADC in the
+ NXP PCF50633 chip.
+
endmenu
menu "Multimedia Capabilities Port drivers"
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 6a4add8..7a12b09 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -34,3 +34,4 @@ obj-$(CONFIG_UCB1400_CORE) += ucb1400_core.o
obj-$(CONFIG_PMIC_DA903X) += da903x.o
obj-$(CONFIG_MFD_PCF50633) += pcf50633-core.o
+obj-$(CONFIG_PCF50633_ADC) += pcf50633-adc.o
diff --git a/drivers/mfd/pcf50633-adc.c b/drivers/mfd/pcf50633-adc.c
new file mode 100644
index 0000000..c2d05be
--- /dev/null
+++ b/drivers/mfd/pcf50633-adc.c
@@ -0,0 +1,277 @@
+/* NXP PCF50633 ADC Driver
+ *
+ * (C) 2006-2008 by Openmoko, Inc.
+ * Author: Balaji Rao <[email protected]>
+ * All rights reserved.
+ *
+ * Broken down from monstrous PCF50633 driver mainly by
+ * Harald Welte, Andy Green and Werner Almesberger
+ *
+ * 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; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * NOTE: This driver does not yet support subtractive ADC mode, which means
+ * you can do only one measurement per read request.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/completion.h>
+
+#include <linux/mfd/pcf50633/core.h>
+#include <linux/mfd/pcf50633/adc.h>
+
+struct pcf50633_adc_request {
+ int mux;
+ int avg;
+ int result;
+ void (*callback)(struct pcf50633 *, void *, int);
+ void *callback_param;
+
+ /* Used in case of sync requests */
+ struct completion completion;
+
+};
+
+#define PCF50633_MAX_ADC_FIFO_DEPTH 8
+
+struct pcf50633_adc {
+ struct pcf50633 *pcf;
+
+ /* Private stuff */
+ struct pcf50633_adc_request *queue[PCF50633_MAX_ADC_FIFO_DEPTH];
+ int queue_head;
+ int queue_tail;
+ struct mutex queue_mutex;
+};
+
+static inline struct pcf50633_adc *__to_adc(struct pcf50633 *pcf)
+{
+ return platform_get_drvdata(pcf->adc_pdev);
+}
+
+static void adc_setup(struct pcf50633 *pcf, int channel, int avg)
+{
+ channel &= PCF50633_ADCC1_ADCMUX_MASK;
+
+ /* kill ratiometric, but enable ACCSW biasing */
+ pcf50633_reg_write(pcf, PCF50633_REG_ADCC2, 0x00);
+ pcf50633_reg_write(pcf, PCF50633_REG_ADCC3, 0x01);
+
+ /* start ADC conversion on selected channel */
+ pcf50633_reg_write(pcf, PCF50633_REG_ADCC1, channel | avg |
+ PCF50633_ADCC1_ADCSTART | PCF50633_ADCC1_RES_10BIT);
+}
+
+static void trigger_next_adc_job_if_any(struct pcf50633 *pcf)
+{
+ struct pcf50633_adc *adc = __to_adc(pcf);
+ int head;
+
+ mutex_lock(&adc->queue_mutex);
+
+ head = adc->queue_head;
+
+ if (!adc->queue[head]) {
+ mutex_unlock(&adc->queue_mutex);
+ return;
+ }
+ mutex_unlock(&adc->queue_mutex);
+
+ adc_setup(pcf, adc->queue[head]->mux, adc->queue[head]->avg);
+}
+
+static int
+adc_enqueue_request(struct pcf50633 *pcf, struct pcf50633_adc_request *req)
+{
+ struct pcf50633_adc *adc = __to_adc(pcf);
+ int head, tail;
+
+ mutex_lock(&adc->queue_mutex);
+
+ head = adc->queue_head;
+ tail = adc->queue_tail;
+
+ if (adc->queue[tail]) {
+ mutex_unlock(&adc->queue_mutex);
+ return -EBUSY;
+ }
+
+ adc->queue[tail] = req;
+ adc->queue_tail = (tail + 1) & (PCF50633_MAX_ADC_FIFO_DEPTH - 1);
+
+ mutex_unlock(&adc->queue_mutex);
+
+ trigger_next_adc_job_if_any(pcf);
+
+ return 0;
+}
+
+static void
+pcf50633_adc_sync_read_callback(struct pcf50633 *pcf, void *param, int result)
+{
+ struct pcf50633_adc_request *req = param;
+
+ req->result = result;
+ complete(&req->completion);
+}
+
+int pcf50633_adc_sync_read(struct pcf50633 *pcf, int mux, int avg)
+{
+ struct pcf50633_adc_request *req;
+
+ /* req is freed when the result is ready, in interrupt handler */
+ req = kzalloc(sizeof(*req), GFP_KERNEL);
+ if (!req)
+ return -ENOMEM;
+
+ req->mux = mux;
+ req->avg = avg;
+ req->callback = pcf50633_adc_sync_read_callback;
+ req->callback_param = req;
+
+ init_completion(&req->completion);
+ adc_enqueue_request(pcf, req);
+ wait_for_completion(&req->completion);
+
+ return req->result;
+}
+EXPORT_SYMBOL_GPL(pcf50633_adc_sync_read);
+
+int pcf50633_adc_async_read(struct pcf50633 *pcf, int mux, int avg,
+ void (*callback)(struct pcf50633 *, void *, int),
+ void *callback_param)
+{
+ struct pcf50633_adc_request *req;
+
+ /* req is freed when the result is ready, in interrupt handler */
+ req = kmalloc(sizeof(*req), GFP_KERNEL);
+ if (!req)
+ return -ENOMEM;
+
+ req->mux = mux;
+ req->avg = avg;
+ req->callback = callback;
+ req->callback_param = callback_param;
+
+ adc_enqueue_request(pcf, req);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(pcf50633_adc_async_read);
+
+static int adc_result(struct pcf50633 *pcf)
+{
+ u8 adcs1, adcs3;
+ u16 result;
+
+ adcs1 = pcf50633_reg_read(pcf, PCF50633_REG_ADCS1);
+ adcs3 = pcf50633_reg_read(pcf, PCF50633_REG_ADCS3);
+ result = (adcs1 << 2) | (adcs3 & PCF50633_ADCS3_ADCDAT1L_MASK);
+
+ dev_dbg(pcf->dev, "adc result = %d\n", result);
+
+ return result;
+}
+
+static void pcf50633_adc_irq(int irq, void *data)
+{
+ struct pcf50633_adc *adc = data;
+ struct pcf50633 *pcf = adc->pcf;
+ struct pcf50633_adc_request *req;
+ int head;
+
+ mutex_lock(&adc->queue_mutex);
+ head = adc->queue_head;
+
+ req = adc->queue[head];
+ if (WARN_ON(!req)) {
+ dev_err(pcf->dev, "pcf50633-adc irq: ADC queue empty!\n");
+ mutex_unlock(&adc->queue_mutex);
+ return;
+ }
+ adc->queue[head] = NULL;
+ adc->queue_head = (head + 1) &
+ (PCF50633_MAX_ADC_FIFO_DEPTH - 1);
+
+ mutex_unlock(&adc->queue_mutex);
+
+ req->callback(pcf, req->callback_param, adc_result(pcf));
+ kfree(req);
+
+ trigger_next_adc_job_if_any(pcf);
+}
+
+static int __devinit pcf50633_adc_probe(struct platform_device *pdev)
+{
+ struct pcf50633_subdev_pdata *pdata = pdev->dev.platform_data;
+ struct pcf50633_adc *adc;
+
+ adc = kzalloc(sizeof(*adc), GFP_KERNEL);
+ if (!adc)
+ return -ENOMEM;
+
+ adc->pcf = pdata->pcf;
+ platform_set_drvdata(pdev, adc);
+
+ pcf50633_register_irq(pdata->pcf, PCF50633_IRQ_ADCRDY,
+ pcf50633_adc_irq, adc);
+
+ mutex_init(&adc->queue_mutex);
+
+ return 0;
+}
+
+static int __devexit pcf50633_adc_remove(struct platform_device *pdev)
+{
+ struct pcf50633_adc *adc = platform_get_drvdata(pdev);
+ int i, head;
+
+ pcf50633_free_irq(adc->pcf, PCF50633_IRQ_ADCRDY);
+
+ mutex_lock(&adc->queue_mutex);
+ head = adc->queue_head;
+
+ if (WARN_ON(adc->queue[head]))
+ dev_err(adc->pcf->dev,
+ "adc driver removed with request pending\n");
+
+ for (i = 0; i < PCF50633_MAX_ADC_FIFO_DEPTH; i++)
+ kfree(adc->queue[i]);
+
+ mutex_unlock(&adc->queue_mutex);
+ kfree(adc);
+
+ return 0;
+}
+
+static struct platform_driver pcf50633_adc_driver = {
+ .driver = {
+ .name = "pcf50633-adc",
+ },
+ .probe = pcf50633_adc_probe,
+ .remove = __devexit_p(pcf50633_adc_remove),
+};
+
+static int __init pcf50633_adc_init(void)
+{
+ return platform_driver_register(&pcf50633_adc_driver);
+}
+module_init(pcf50633_adc_init);
+
+static void __exit pcf50633_adc_exit(void)
+{
+ platform_driver_unregister(&pcf50633_adc_driver);
+}
+module_exit(pcf50633_adc_exit);
+
+MODULE_AUTHOR("Balaji Rao <[email protected]>");
+MODULE_DESCRIPTION("PCF50633 adc driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pcf50633-adc");
+
diff --git a/include/linux/mfd/pcf50633/adc.h b/include/linux/mfd/pcf50633/adc.h
new file mode 100644
index 0000000..56669b4
--- /dev/null
+++ b/include/linux/mfd/pcf50633/adc.h
@@ -0,0 +1,72 @@
+/*
+ * adc.h -- Driver for NXP PCF50633 ADC
+ *
+ * (C) 2006-2008 by Openmoko, Inc.
+ * All rights reserved.
+ *
+ * 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; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __LINUX_MFD_PCF50633_ADC_H
+#define __LINUX_MFD_PCF50633_ADC_H
+
+#include <linux/mfd/pcf50633/core.h>
+#include <linux/platform_device.h>
+
+/* ADC Registers */
+#define PCF50633_REG_ADCC3 0x52
+#define PCF50633_REG_ADCC2 0x53
+#define PCF50633_REG_ADCC1 0x54
+#define PCF50633_REG_ADCS1 0x55
+#define PCF50633_REG_ADCS2 0x56
+#define PCF50633_REG_ADCS3 0x57
+
+#define PCF50633_ADCC1_ADCSTART 0x01
+#define PCF50633_ADCC1_RES_10BIT 0x02
+#define PCF50633_ADCC1_AVERAGE_NO 0x00
+#define PCF50633_ADCC1_AVERAGE_4 0x04
+#define PCF50633_ADCC1_AVERAGE_8 0x08
+#define PCF50633_ADCC1_AVERAGE_16 0x0c
+#define PCF50633_ADCC1_MUX_BATSNS_RES 0x00
+#define PCF50633_ADCC1_MUX_BATSNS_SUBTR 0x10
+#define PCF50633_ADCC1_MUX_ADCIN2_RES 0x20
+#define PCF50633_ADCC1_MUX_ADCIN2_SUBTR 0x30
+#define PCF50633_ADCC1_MUX_BATTEMP 0x60
+#define PCF50633_ADCC1_MUX_ADCIN1 0x70
+#define PCF50633_ADCC1_AVERAGE_MASK 0x0c
+#define PCF50633_ADCC1_ADCMUX_MASK 0xf0
+
+#define PCF50633_ADCC2_RATIO_NONE 0x00
+#define PCF50633_ADCC2_RATIO_BATTEMP 0x01
+#define PCF50633_ADCC2_RATIO_ADCIN1 0x02
+#define PCF50633_ADCC2_RATIO_BOTH 0x03
+#define PCF50633_ADCC2_RATIOSETTL_100US 0x04
+
+#define PCF50633_ADCC3_ACCSW_EN 0x01
+#define PCF50633_ADCC3_NTCSW_EN 0x04
+#define PCF50633_ADCC3_RES_DIV_TWO 0x10
+#define PCF50633_ADCC3_RES_DIV_THREE 0x00
+
+#define PCF50633_ADCS3_REF_NTCSW 0x00
+#define PCF50633_ADCS3_REF_ACCSW 0x10
+#define PCF50633_ADCS3_REF_2V0 0x20
+#define PCF50633_ADCS3_REF_VISA 0x30
+#define PCF50633_ADCS3_REF_2V0_2 0x70
+#define PCF50633_ADCS3_ADCRDY 0x80
+
+#define PCF50633_ADCS3_ADCDAT1L_MASK 0x03
+#define PCF50633_ADCS3_ADCDAT2L_MASK 0x0c
+#define PCF50633_ADCS3_ADCDAT2L_SHIFT 2
+#define PCF50633_ASCS3_REF_MASK 0x70
+
+extern int
+pcf50633_adc_async_read(struct pcf50633 *pcf, int mux, int avg,
+ void (*callback)(struct pcf50633 *, void *, int),
+ void *callback_param);
+extern int
+pcf50633_adc_sync_read(struct pcf50633 *pcf, int mux, int avg);
+
+#endif /* __LINUX_PCF50633_ADC_H */
What the PCF05633 calls as a 'GPIO' is much more than the GPIO in the linux
sense and there are only 4 of them - which means, the gpiolib is not used
here.
Signed-off-by: Balaji Rao <[email protected]>
Cc: Andy Green <[email protected]>
Cc: Samuel Ortiz <[email protected]>
---
drivers/mfd/Kconfig | 7 ++
drivers/mfd/Makefile | 1
drivers/mfd/pcf50633-gpio.c | 118 +++++++++++++++++++++++++++++++++++++
include/linux/mfd/pcf50633/gpio.h | 52 ++++++++++++++++
4 files changed, 178 insertions(+), 0 deletions(-)
create mode 100644 drivers/mfd/pcf50633-gpio.c
create mode 100644 include/linux/mfd/pcf50633/gpio.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 3af4cd1..8d8c8df 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -169,6 +169,13 @@ config PCF50633_ADC
Say yes here if you want to include support for ADC in the
NXP PCF50633 chip.
+config PCF50633_GPIO
+ tristate "Support for NXP PCF50633 GPIO"
+ depends on MFD_PCF50633
+ help
+ Say yes here if you want to include support GPIO for pins on
+ the PCF50633 chip.
+
endmenu
menu "Multimedia Capabilities Port drivers"
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 7a12b09..5bc7c9f 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -35,3 +35,4 @@ obj-$(CONFIG_PMIC_DA903X) += da903x.o
obj-$(CONFIG_MFD_PCF50633) += pcf50633-core.o
obj-$(CONFIG_PCF50633_ADC) += pcf50633-adc.o
+obj-$(CONFIG_PCF50633_GPIO) += pcf50633-gpio.o
diff --git a/drivers/mfd/pcf50633-gpio.c b/drivers/mfd/pcf50633-gpio.c
new file mode 100644
index 0000000..2fa2eca
--- /dev/null
+++ b/drivers/mfd/pcf50633-gpio.c
@@ -0,0 +1,118 @@
+/* NXP PCF50633 GPIO Driver
+ *
+ * (C) 2006-2008 by Openmoko, Inc.
+ * Author: Balaji Rao <[email protected]>
+ * All rights reserved.
+ *
+ * Broken down from monstrous PCF50633 driver mainly by
+ * Harald Welte, Andy Green and Werner Almesberger
+ *
+ * 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; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/kernel.h>
+
+#include <linux/mfd/pcf50633/core.h>
+#include <linux/mfd/pcf50633/gpio.h>
+
+enum pcf50633_regulator_id {
+ PCF50633_REGULATOR_AUTO,
+ PCF50633_REGULATOR_DOWN1,
+ PCF50633_REGULATOR_DOWN2,
+ PCF50633_REGULATOR_LDO1,
+ PCF50633_REGULATOR_LDO2,
+ PCF50633_REGULATOR_LDO3,
+ PCF50633_REGULATOR_LDO4,
+ PCF50633_REGULATOR_LDO5,
+ PCF50633_REGULATOR_LDO6,
+ PCF50633_REGULATOR_HCLDO,
+ PCF50633_REGULATOR_MEMLDO,
+};
+
+#define PCF50633_REG_AUTOOUT 0x1a
+#define PCF50633_REG_DOWN1OUT 0x1e
+#define PCF50633_REG_DOWN2OUT 0x22
+#define PCF50633_REG_MEMLDOOUT 0x26
+#define PCF50633_REG_LDO1OUT 0x2d
+#define PCF50633_REG_LDO2OUT 0x2f
+#define PCF50633_REG_LDO3OUT 0x31
+#define PCF50633_REG_LDO4OUT 0x33
+#define PCF50633_REG_LDO5OUT 0x35
+#define PCF50633_REG_LDO6OUT 0x37
+#define PCF50633_REG_HCLDOOUT 0x39
+
+static const u8 pcf50633_regulator_registers[PCF50633_NUM_REGULATORS] = {
+ [PCF50633_REGULATOR_AUTO] = PCF50633_REG_AUTOOUT,
+ [PCF50633_REGULATOR_DOWN1] = PCF50633_REG_DOWN1OUT,
+ [PCF50633_REGULATOR_DOWN2] = PCF50633_REG_DOWN2OUT,
+ [PCF50633_REGULATOR_MEMLDO] = PCF50633_REG_MEMLDOOUT,
+ [PCF50633_REGULATOR_LDO1] = PCF50633_REG_LDO1OUT,
+ [PCF50633_REGULATOR_LDO2] = PCF50633_REG_LDO2OUT,
+ [PCF50633_REGULATOR_LDO3] = PCF50633_REG_LDO3OUT,
+ [PCF50633_REGULATOR_LDO4] = PCF50633_REG_LDO4OUT,
+ [PCF50633_REGULATOR_LDO5] = PCF50633_REG_LDO5OUT,
+ [PCF50633_REGULATOR_LDO6] = PCF50633_REG_LDO6OUT,
+ [PCF50633_REGULATOR_HCLDO] = PCF50633_REG_HCLDOOUT,
+};
+
+int pcf50633_gpio_set(struct pcf50633 *pcf, int gpio, u8 val)
+{
+ u8 reg;
+
+ reg = gpio - PCF50633_GPIO1 + PCF50633_REG_GPIO1CFG;
+
+ return pcf50633_reg_set_bit_mask(pcf, reg, 0x07, val);
+}
+EXPORT_SYMBOL_GPL(pcf50633_gpio_set);
+
+u8 pcf50633_gpio_get(struct pcf50633 *pcf, int gpio)
+{
+ u8 reg, val;
+
+ reg = gpio - PCF50633_GPIO1 + PCF50633_REG_GPIO1CFG;
+ val = pcf50633_reg_read(pcf, reg) & 0x07;
+
+ return val;
+}
+EXPORT_SYMBOL_GPL(pcf50633_gpio_get);
+
+int pcf50633_gpio_invert_set(struct pcf50633 *pcf, int gpio, int invert)
+{
+ u8 val, reg;
+
+ reg = gpio - PCF50633_GPIO1 + PCF50633_REG_GPIO1CFG;
+ val = !!invert << 3;
+
+ return pcf50633_reg_set_bit_mask(pcf, reg, 1 << 3, val);
+}
+EXPORT_SYMBOL_GPL(pcf50633_gpio_invert_set);
+
+int pcf50633_gpio_invert_get(struct pcf50633 *pcf, int gpio)
+{
+ u8 reg, val;
+
+ reg = gpio - PCF50633_GPIO1 + PCF50633_REG_GPIO1CFG;
+ val = pcf50633_reg_read(pcf, reg);
+
+ return val & (1 << 3);
+}
+EXPORT_SYMBOL_GPL(pcf50633_gpio_invert_get);
+
+int pcf50633_gpio_power_supply_set(struct pcf50633 *pcf,
+ int gpio, int regulator, int on)
+{
+ u8 reg, val, mask;
+
+ /* the *ENA register is always one after the *OUT register */
+ reg = pcf50633_regulator_registers[regulator] + 1;
+
+ val = !!on << (gpio - PCF50633_GPIO1);
+ mask = 1 << (gpio - PCF50633_GPIO1);
+
+ return pcf50633_reg_set_bit_mask(pcf, reg, mask, val);
+}
+EXPORT_SYMBOL_GPL(pcf50633_gpio_power_supply_set);
diff --git a/include/linux/mfd/pcf50633/gpio.h b/include/linux/mfd/pcf50633/gpio.h
new file mode 100644
index 0000000..a42b845
--- /dev/null
+++ b/include/linux/mfd/pcf50633/gpio.h
@@ -0,0 +1,52 @@
+/*
+ * gpio.h -- GPIO driver for NXP PCF50633
+ *
+ * (C) 2006-2008 by Openmoko, Inc.
+ * All rights reserved.
+ *
+ * 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; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __LINUX_MFD_PCF50633_GPIO_H
+#define __LINUX_MFD_PCF50633_GPIO_H
+
+#include <linux/mfd/pcf50633/core.h>
+
+#define PCF50633_GPIO1 1
+#define PCF50633_GPIO2 2
+#define PCF50633_GPIO3 3
+#define PCF50633_GPO 4
+
+#define PCF50633_REG_GPIO1CFG 0x14
+#define PCF50633_REG_GPIO2CFG 0x15
+#define PCF50633_REG_GPIO3CFG 0x16
+#define PCF50633_REG_GPOCFG 0x17
+
+#define PCF50633_GPOCFG_GPOSEL_MASK 0x07
+
+enum pcf50633_reg_gpocfg {
+ PCF50633_GPOCFG_GPOSEL_0 = 0x00,
+ PCF50633_GPOCFG_GPOSEL_LED_NFET = 0x01,
+ PCF50633_GPOCFG_GPOSEL_SYSxOK = 0x02,
+ PCF50633_GPOCFG_GPOSEL_CLK32K = 0x03,
+ PCF50633_GPOCFG_GPOSEL_ADAPUSB = 0x04,
+ PCF50633_GPOCFG_GPOSEL_USBxOK = 0x05,
+ PCF50633_GPOCFG_GPOSEL_ACTPH4 = 0x06,
+ PCF50633_GPOCFG_GPOSEL_1 = 0x07,
+ PCF50633_GPOCFG_GPOSEL_INVERSE = 0x08,
+};
+
+int pcf50633_gpio_set(struct pcf50633 *pcf, int gpio, u8 val);
+u8 pcf50633_gpio_get(struct pcf50633 *pcf, int gpio);
+
+int pcf50633_gpio_invert_set(struct pcf50633 *, int gpio, int invert);
+int pcf50633_gpio_invert_get(struct pcf50633 *pcf, int gpio);
+
+int pcf50633_gpio_power_supply_set(struct pcf50633 *,
+ int gpio, int regulator, int on);
+#endif /* __LINUX_MFD_PCF50633_GPIO_H */
+
+
Signed-off-by: Balaji Rao <[email protected]>
Cc: Andy Green <[email protected]>
Cc: Alessandro Zummo <[email protected]>
Cc: Paul Gortmaker <[email protected]>
Cc: [email protected]
---
Changes from V1:
- Removed include/linux/mfd/pcf50633/rtc.h and moved defenitions into
the source file.
- Remove PIE and introduce UIE support. UIE being the one actually
supported in the chip.
Changes from V2:
- Updated the driver to use new interfaces for alarm/update.
---
drivers/rtc/Kconfig | 7 +
drivers/rtc/Makefile | 1
drivers/rtc/rtc-pcf50633.c | 344 ++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 352 insertions(+), 0 deletions(-)
create mode 100644 drivers/rtc/rtc-pcf50633.c
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 165a818..63b1fea 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -501,6 +501,13 @@ config RTC_DRV_WM8350
This driver can also be built as a module. If so, the module
will be called "rtc-wm8350".
+config RTC_DRV_PCF50633
+ depends on MFD_PCF50633
+ tristate "NXP PCF50633 RTC"
+ help
+ If you say yes here you get support for the RTC subsystem of the
+ NXP PCF50633 used in embedded systems.
+
comment "on-CPU RTC drivers"
config RTC_DRV_OMAP
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index 6e79c91..a717fec 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -70,3 +70,4 @@ obj-$(CONFIG_RTC_DRV_V3020) += rtc-v3020.o
obj-$(CONFIG_RTC_DRV_VR41XX) += rtc-vr41xx.o
obj-$(CONFIG_RTC_DRV_WM8350) += rtc-wm8350.o
obj-$(CONFIG_RTC_DRV_X1205) += rtc-x1205.o
+obj-$(CONFIG_RTC_DRV_PCF50633) += rtc-pcf50633.o
diff --git a/drivers/rtc/rtc-pcf50633.c b/drivers/rtc/rtc-pcf50633.c
new file mode 100644
index 0000000..f4dd87e
--- /dev/null
+++ b/drivers/rtc/rtc-pcf50633.c
@@ -0,0 +1,344 @@
+/* NXP PCF50633 RTC Driver
+ *
+ * (C) 2006-2008 by Openmoko, Inc.
+ * Author: Balaji Rao <[email protected]>
+ * All rights reserved.
+ *
+ * Broken down from monstrous PCF50633 driver mainly by
+ * Harald Welte, Andy Green and Werner Almesberger
+ *
+ * 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; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/rtc.h>
+#include <linux/bcd.h>
+#include <linux/err.h>
+
+#include <linux/mfd/pcf50633/core.h>
+
+#define PCF50633_REG_RTCSC 0x59 /* Second */
+#define PCF50633_REG_RTCMN 0x5a /* Minute */
+#define PCF50633_REG_RTCHR 0x5b /* Hour */
+#define PCF50633_REG_RTCWD 0x5c /* Weekday */
+#define PCF50633_REG_RTCDT 0x5d /* Day */
+#define PCF50633_REG_RTCMT 0x5e /* Month */
+#define PCF50633_REG_RTCYR 0x5f /* Year */
+#define PCF50633_REG_RTCSCA 0x60 /* Alarm Second */
+#define PCF50633_REG_RTCMNA 0x61 /* Alarm Minute */
+#define PCF50633_REG_RTCHRA 0x62 /* Alarm Hour */
+#define PCF50633_REG_RTCWDA 0x63 /* Alarm Weekday */
+#define PCF50633_REG_RTCDTA 0x64 /* Alarm Day */
+#define PCF50633_REG_RTCMTA 0x65 /* Alarm Month */
+#define PCF50633_REG_RTCYRA 0x66 /* Alarm Year */
+
+enum pcf50633_time_indexes {
+ PCF50633_TI_SEC,
+ PCF50633_TI_MIN,
+ PCF50633_TI_HOUR,
+ PCF50633_TI_WKDAY,
+ PCF50633_TI_DAY,
+ PCF50633_TI_MONTH,
+ PCF50633_TI_YEAR,
+ PCF50633_TI_EXTENT /* always last */
+};
+
+struct pcf50633_time {
+ u_int8_t time[PCF50633_TI_EXTENT];
+};
+
+struct pcf50633_rtc {
+ int alarm_enabled;
+ int second_enabled;
+
+ struct pcf50633 *pcf;
+ struct rtc_device *rtc_dev;
+};
+
+static void pcf2rtc_time(struct rtc_time *rtc, struct pcf50633_time *pcf)
+{
+ rtc->tm_sec = bcd2bin(pcf->time[PCF50633_TI_SEC]);
+ rtc->tm_min = bcd2bin(pcf->time[PCF50633_TI_MIN]);
+ rtc->tm_hour = bcd2bin(pcf->time[PCF50633_TI_HOUR]);
+ rtc->tm_wday = bcd2bin(pcf->time[PCF50633_TI_WKDAY]);
+ rtc->tm_mday = bcd2bin(pcf->time[PCF50633_TI_DAY]);
+ rtc->tm_mon = bcd2bin(pcf->time[PCF50633_TI_MONTH]);
+ rtc->tm_year = bcd2bin(pcf->time[PCF50633_TI_YEAR]) + 100;
+}
+
+static void rtc2pcf_time(struct pcf50633_time *pcf, struct rtc_time *rtc)
+{
+ pcf->time[PCF50633_TI_SEC] = bin2bcd(rtc->tm_sec);
+ pcf->time[PCF50633_TI_MIN] = bin2bcd(rtc->tm_min);
+ pcf->time[PCF50633_TI_HOUR] = bin2bcd(rtc->tm_hour);
+ pcf->time[PCF50633_TI_WKDAY] = bin2bcd(rtc->tm_wday);
+ pcf->time[PCF50633_TI_DAY] = bin2bcd(rtc->tm_mday);
+ pcf->time[PCF50633_TI_MONTH] = bin2bcd(rtc->tm_mon);
+ pcf->time[PCF50633_TI_YEAR] = bin2bcd(rtc->tm_year % 100);
+}
+
+static int
+pcf50633_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
+{
+ struct pcf50633_rtc *rtc = dev_get_drvdata(dev);
+ int err;
+
+ if (enabled)
+ err = pcf50633_irq_unmask(rtc->pcf, PCF50633_IRQ_ALARM);
+ else
+ err = pcf50633_irq_mask(rtc->pcf, PCF50633_IRQ_ALARM);
+
+ if (err < 0)
+ return err;
+
+ rtc->alarm_enabled = enabled;
+
+ return 0;
+}
+
+static int
+pcf50633_rtc_update_irq_enable(struct device *dev, unsigned int enabled)
+{
+ struct pcf50633_rtc *rtc = dev_get_drvdata(dev);
+ int err;
+
+ if (enabled)
+ err = pcf50633_irq_unmask(rtc->pcf, PCF50633_IRQ_SECOND);
+ else
+ err = pcf50633_irq_mask(rtc->pcf, PCF50633_IRQ_SECOND);
+
+ if (err < 0)
+ return err;
+
+ rtc->second_enabled = enabled;
+
+ return 0;
+}
+
+static int pcf50633_rtc_read_time(struct device *dev, struct rtc_time *tm)
+{
+ struct pcf50633_rtc *rtc;
+ struct pcf50633_time pcf_tm;
+ int ret;
+
+ rtc = dev_get_drvdata(dev);
+
+ ret = pcf50633_read_block(rtc->pcf, PCF50633_REG_RTCSC,
+ PCF50633_TI_EXTENT,
+ &pcf_tm.time[0]);
+ if (ret != PCF50633_TI_EXTENT) {
+ dev_err(dev, "Failed to read time\n");
+ return -EIO;
+ }
+
+ dev_dbg(dev, "PCF_TIME: %02x.%02x.%02x %02x:%02x:%02x\n",
+ pcf_tm.time[PCF50633_TI_DAY],
+ pcf_tm.time[PCF50633_TI_MONTH],
+ pcf_tm.time[PCF50633_TI_YEAR],
+ pcf_tm.time[PCF50633_TI_HOUR],
+ pcf_tm.time[PCF50633_TI_MIN],
+ pcf_tm.time[PCF50633_TI_SEC]);
+
+ pcf2rtc_time(tm, &pcf_tm);
+
+ dev_dbg(dev, "RTC_TIME: %u.%u.%u %u:%u:%u\n",
+ tm->tm_mday, tm->tm_mon, tm->tm_year,
+ tm->tm_hour, tm->tm_min, tm->tm_sec);
+
+ return rtc_valid_tm(tm);
+}
+
+static int pcf50633_rtc_set_time(struct device *dev, struct rtc_time *tm)
+{
+ struct pcf50633_rtc *rtc;
+ struct pcf50633_time pcf_tm;
+ int second_masked, alarm_masked, ret = 0;
+
+ rtc = dev_get_drvdata(dev);
+
+ dev_dbg(dev, "RTC_TIME: %u.%u.%u %u:%u:%u\n",
+ tm->tm_mday, tm->tm_mon, tm->tm_year,
+ tm->tm_hour, tm->tm_min, tm->tm_sec);
+
+ rtc2pcf_time(&pcf_tm, tm);
+
+ dev_dbg(dev, "PCF_TIME: %02x.%02x.%02x %02x:%02x:%02x\n",
+ pcf_tm.time[PCF50633_TI_DAY],
+ pcf_tm.time[PCF50633_TI_MONTH],
+ pcf_tm.time[PCF50633_TI_YEAR],
+ pcf_tm.time[PCF50633_TI_HOUR],
+ pcf_tm.time[PCF50633_TI_MIN],
+ pcf_tm.time[PCF50633_TI_SEC]);
+
+
+ second_masked = pcf50633_irq_mask_get(rtc->pcf, PCF50633_IRQ_SECOND);
+ alarm_masked = pcf50633_irq_mask_get(rtc->pcf, PCF50633_IRQ_ALARM);
+
+ if (!second_masked)
+ pcf50633_irq_mask(rtc->pcf, PCF50633_IRQ_SECOND);
+ if (!alarm_masked)
+ pcf50633_irq_mask(rtc->pcf, PCF50633_IRQ_ALARM);
+
+ /* Returns 0 on success */
+ ret = pcf50633_write_block(rtc->pcf, PCF50633_REG_RTCSC,
+ PCF50633_TI_EXTENT,
+ &pcf_tm.time[0]);
+
+ if (!second_masked)
+ pcf50633_irq_unmask(rtc->pcf, PCF50633_IRQ_SECOND);
+ if (!alarm_masked)
+ pcf50633_irq_unmask(rtc->pcf, PCF50633_IRQ_ALARM);
+
+ return ret;
+}
+
+static int pcf50633_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+ struct pcf50633_rtc *rtc;
+ struct pcf50633_time pcf_tm;
+ int ret = 0;
+
+ rtc = dev_get_drvdata(dev);
+
+ alrm->enabled = rtc->alarm_enabled;
+
+ ret = pcf50633_read_block(rtc->pcf, PCF50633_REG_RTCSCA,
+ PCF50633_TI_EXTENT, &pcf_tm.time[0]);
+ if (ret != PCF50633_TI_EXTENT) {
+ dev_err(dev, "Failed to read time\n");
+ return -EIO;
+ }
+
+ pcf2rtc_time(&alrm->time, &pcf_tm);
+
+ return rtc_valid_tm(&alrm->time);
+}
+
+static int pcf50633_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+ struct pcf50633_rtc *rtc;
+ struct pcf50633_time pcf_tm;
+ int alarm_masked, ret = 0;
+
+ rtc = dev_get_drvdata(dev);
+
+ rtc2pcf_time(&pcf_tm, &alrm->time);
+
+ /* do like mktime does and ignore tm_wday */
+ pcf_tm.time[PCF50633_TI_WKDAY] = 7;
+
+ alarm_masked = pcf50633_irq_mask_get(rtc->pcf, PCF50633_IRQ_ALARM);
+
+ /* disable alarm interrupt */
+ if (!alarm_masked)
+ pcf50633_irq_mask(rtc->pcf, PCF50633_IRQ_ALARM);
+
+ /* Returns 0 on success */
+ ret = pcf50633_write_block(rtc->pcf, PCF50633_REG_RTCSCA,
+ PCF50633_TI_EXTENT, &pcf_tm.time[0]);
+
+ if (!alarm_masked)
+ pcf50633_irq_unmask(rtc->pcf, PCF50633_IRQ_ALARM);
+
+ return ret;
+}
+
+static struct rtc_class_ops pcf50633_rtc_ops = {
+ .read_time = pcf50633_rtc_read_time,
+ .set_time = pcf50633_rtc_set_time,
+ .read_alarm = pcf50633_rtc_read_alarm,
+ .set_alarm = pcf50633_rtc_set_alarm,
+ .alarm_irq_enable = pcf50633_rtc_alarm_irq_enable,
+ .update_irq_enable = pcf50633_rtc_update_irq_enable,
+};
+
+static void pcf50633_rtc_irq(int irq, void *data)
+{
+ struct pcf50633_rtc *rtc = data;
+
+ switch (irq) {
+ case PCF50633_IRQ_ALARM:
+ rtc_update_irq(rtc->rtc_dev, 1, RTC_AF | RTC_IRQF);
+ break;
+ case PCF50633_IRQ_SECOND:
+ rtc_update_irq(rtc->rtc_dev, 1, RTC_UF | RTC_IRQF);
+ break;
+ }
+}
+
+static int __devinit pcf50633_rtc_probe(struct platform_device *pdev)
+{
+ struct pcf50633_subdev_pdata *pdata;
+ struct pcf50633_rtc *rtc;
+
+
+ rtc = kzalloc(sizeof(*rtc), GFP_KERNEL);
+ if (!rtc)
+ return -ENOMEM;
+
+ pdata = pdev->dev.platform_data;
+ rtc->pcf = pdata->pcf;
+ platform_set_drvdata(pdev, rtc);
+ rtc->rtc_dev = rtc_device_register("pcf50633-rtc", &pdev->dev,
+ &pcf50633_rtc_ops, THIS_MODULE);
+
+ if (IS_ERR(rtc->rtc_dev)) {
+ kfree(rtc);
+ return PTR_ERR(rtc->rtc_dev);
+ }
+
+ pcf50633_register_irq(rtc->pcf, PCF50633_IRQ_ALARM,
+ pcf50633_rtc_irq, rtc);
+ pcf50633_register_irq(rtc->pcf, PCF50633_IRQ_SECOND,
+ pcf50633_rtc_irq, rtc);
+
+ return 0;
+}
+
+static int __devexit pcf50633_rtc_remove(struct platform_device *pdev)
+{
+ struct pcf50633_rtc *rtc;
+
+ rtc = platform_get_drvdata(pdev);
+
+ pcf50633_free_irq(rtc->pcf, PCF50633_IRQ_ALARM);
+ pcf50633_free_irq(rtc->pcf, PCF50633_IRQ_SECOND);
+
+ rtc_device_unregister(rtc->rtc_dev);
+ kfree(rtc);
+
+ return 0;
+}
+
+static struct platform_driver pcf50633_rtc_driver = {
+ .driver = {
+ .name = "pcf50633-rtc",
+ },
+ .probe = pcf50633_rtc_probe,
+ .remove = __devexit_p(pcf50633_rtc_remove),
+};
+
+static int __init pcf50633_rtc_init(void)
+{
+ return platform_driver_register(&pcf50633_rtc_driver);
+}
+module_init(pcf50633_rtc_init);
+
+static void __exit pcf50633_rtc_exit(void)
+{
+ platform_driver_unregister(&pcf50633_rtc_driver);
+}
+module_exit(pcf50633_rtc_exit);
+
+MODULE_DESCRIPTION("PCF50633 RTC driver");
+MODULE_AUTHOR("Balaji Rao <[email protected]>");
+MODULE_LICENSE("GPL");
+
Signed-off-by: Balaji Rao <[email protected]>
Cc: Andy Green <[email protected]>
Cc: David Woodhouse <[email protected]>
Acked-by: Anton Vorontsov <[email protected]>
---
drivers/power/Kconfig | 6 +
drivers/power/Makefile | 1
drivers/power/pcf50633-charger.c | 358 ++++++++++++++++++++++++++++++++++++++
include/linux/mfd/pcf50633/mbc.h | 134 ++++++++++++++
4 files changed, 499 insertions(+), 0 deletions(-)
create mode 100644 drivers/power/pcf50633-charger.c
create mode 100644 include/linux/mfd/pcf50633/mbc.h
diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index 8e0c2b4..3240b9c 100644
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -68,4 +68,10 @@ config BATTERY_BQ27x00
help
Say Y here to enable support for batteries with BQ27200(I2C) chip.
+config CHARGER_PCF50633
+ tristate "NXP PCF50633 MBC"
+ depends on MFD_PCF50633
+ help
+ Say Y to include support for NXP PCF50633 Main Battery Charger.
+
endif # POWER_SUPPLY
diff --git a/drivers/power/Makefile b/drivers/power/Makefile
index e8f1ece..a15739a 100644
--- a/drivers/power/Makefile
+++ b/drivers/power/Makefile
@@ -23,3 +23,4 @@ obj-$(CONFIG_BATTERY_OLPC) += olpc_battery.o
obj-$(CONFIG_BATTERY_TOSA) += tosa_battery.o
obj-$(CONFIG_BATTERY_WM97XX) += wm97xx_battery.o
obj-$(CONFIG_BATTERY_BQ27x00) += bq27x00_battery.o
+obj-$(CONFIG_CHARGER_PCF50633) += pcf50633-charger.o
diff --git a/drivers/power/pcf50633-charger.c b/drivers/power/pcf50633-charger.c
new file mode 100644
index 0000000..e988ec1
--- /dev/null
+++ b/drivers/power/pcf50633-charger.c
@@ -0,0 +1,358 @@
+/* NXP PCF50633 Main Battery Charger Driver
+ *
+ * (C) 2006-2008 by Openmoko, Inc.
+ * Author: Balaji Rao <[email protected]>
+ * All rights reserved.
+ *
+ * Broken down from monstrous PCF50633 driver mainly by
+ * Harald Welte, Andy Green and Werner Almesberger
+ *
+ * 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; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/device.h>
+#include <linux/sysfs.h>
+#include <linux/platform_device.h>
+#include <linux/power_supply.h>
+
+#include <linux/mfd/pcf50633/core.h>
+#include <linux/mfd/pcf50633/mbc.h>
+
+struct pcf50633_mbc {
+ struct pcf50633 *pcf;
+
+ int adapter_active;
+ int adapter_online;
+ int usb_active;
+ int usb_online;
+
+ struct power_supply usb;
+ struct power_supply adapter;
+};
+
+int pcf50633_mbc_usb_curlim_set(struct pcf50633 *pcf, int ma)
+{
+ struct pcf50633_mbc *mbc = platform_get_drvdata(pcf->mbc_pdev);
+ int ret = 0;
+ u8 bits;
+
+ if (ma >= 1000)
+ bits = PCF50633_MBCC7_USB_1000mA;
+ else if (ma >= 500)
+ bits = PCF50633_MBCC7_USB_500mA;
+ else if (ma >= 100)
+ bits = PCF50633_MBCC7_USB_100mA;
+ else
+ bits = PCF50633_MBCC7_USB_SUSPEND;
+
+ ret = pcf50633_reg_set_bit_mask(pcf, PCF50633_REG_MBCC7,
+ PCF50633_MBCC7_USB_MASK, bits);
+ if (ret)
+ dev_err(pcf->dev, "error setting usb curlim to %d mA\n", ma);
+ else
+ dev_info(pcf->dev, "usb curlim to %d mA\n", ma);
+
+ power_supply_changed(&mbc->usb);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(pcf50633_mbc_usb_curlim_set);
+
+int pcf50633_mbc_get_status(struct pcf50633 *pcf)
+{
+ struct pcf50633_mbc *mbc = platform_get_drvdata(pcf->mbc_pdev);
+ int status = 0;
+
+ if (mbc->usb_online)
+ status |= PCF50633_MBC_USB_ONLINE;
+ if (mbc->usb_active)
+ status |= PCF50633_MBC_USB_ACTIVE;
+ if (mbc->adapter_online)
+ status |= PCF50633_MBC_ADAPTER_ONLINE;
+ if (mbc->adapter_active)
+ status |= PCF50633_MBC_ADAPTER_ACTIVE;
+
+ return status;
+}
+EXPORT_SYMBOL_GPL(pcf50633_mbc_get_status);
+
+void pcf50633_mbc_set_status(struct pcf50633 *pcf, int what, int status)
+{
+ struct pcf50633_mbc *mbc = platform_get_drvdata(pcf->mbc_pdev);
+
+ if (what & PCF50633_MBC_USB_ONLINE)
+ mbc->usb_online = !!status;
+ if (what & PCF50633_MBC_USB_ACTIVE)
+ mbc->usb_active = !!status;
+ if (what & PCF50633_MBC_ADAPTER_ONLINE)
+ mbc->adapter_online = !!status;
+ if (what & PCF50633_MBC_ADAPTER_ACTIVE)
+ mbc->adapter_active = !!status;
+}
+EXPORT_SYMBOL_GPL(pcf50633_mbc_set_status);
+
+static ssize_t
+show_chgmode(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct pcf50633_mbc *mbc = dev_get_drvdata(dev);
+
+ u8 mbcs2 = pcf50633_reg_read(mbc->pcf, PCF50633_REG_MBCS2);
+ u8 chgmod = (mbcs2 & PCF50633_MBCS2_MBC_MASK);
+
+ return sprintf(buf, "%d\n", chgmod);
+}
+static DEVICE_ATTR(chgmode, S_IRUGO, show_chgmode, NULL);
+
+static ssize_t
+show_usblim(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct pcf50633_mbc *mbc = dev_get_drvdata(dev);
+ u8 usblim = pcf50633_reg_read(mbc->pcf, PCF50633_REG_MBCC7) &
+ PCF50633_MBCC7_USB_MASK;
+ unsigned int ma;
+
+ if (usblim == PCF50633_MBCC7_USB_1000mA)
+ ma = 1000;
+ else if (usblim == PCF50633_MBCC7_USB_500mA)
+ ma = 500;
+ else if (usblim == PCF50633_MBCC7_USB_100mA)
+ ma = 100;
+ else
+ ma = 0;
+
+ return sprintf(buf, "%u\n", ma);
+}
+
+static ssize_t set_usblim(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct pcf50633_mbc *mbc = dev_get_drvdata(dev);
+ unsigned long ma;
+ int ret;
+
+ ret = strict_strtoul(buf, 10, &ma);
+ if (ret)
+ return -EINVAL;
+
+ pcf50633_mbc_usb_curlim_set(mbc->pcf, ma);
+
+ return count;
+}
+
+static DEVICE_ATTR(usb_curlim, S_IRUGO | S_IWUSR, show_usblim, set_usblim);
+
+static struct attribute *pcf50633_mbc_sysfs_entries[] = {
+ &dev_attr_chgmode.attr,
+ &dev_attr_usb_curlim.attr,
+ NULL,
+};
+
+static struct attribute_group mbc_attr_group = {
+ .name = NULL, /* put in device directory */
+ .attrs = pcf50633_mbc_sysfs_entries,
+};
+
+static void
+pcf50633_mbc_irq_handler(int irq, void *data)
+{
+ struct pcf50633_mbc *mbc = data;
+
+ /* USB */
+ if (irq == PCF50633_IRQ_USBINS) {
+ mbc->usb_online = 1;
+ } else if (irq == PCF50633_IRQ_USBREM) {
+ mbc->usb_online = 0;
+ mbc->usb_active = 0;
+ pcf50633_mbc_usb_curlim_set(mbc->pcf, 0);
+ }
+
+ /* Adapter */
+ if (irq == PCF50633_IRQ_ADPINS) {
+ mbc->adapter_online = 1;
+ mbc->adapter_active = 1;
+ } else if (irq == PCF50633_IRQ_ADPREM) {
+ mbc->adapter_online = 0;
+ mbc->adapter_active = 0;
+ }
+
+ if (irq == PCF50633_IRQ_BATFULL) {
+ mbc->usb_active = 0;
+ mbc->adapter_active = 0;
+ }
+
+ power_supply_changed(&mbc->usb);
+ power_supply_changed(&mbc->adapter);
+
+ if (mbc->pcf->pdata->mbc_event_callback)
+ mbc->pcf->pdata->mbc_event_callback(mbc->pcf, irq);
+}
+
+static int adapter_get_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ struct pcf50633_mbc *mbc = container_of(psy, struct pcf50633_mbc, usb);
+ int ret = 0;
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_ONLINE:
+ val->intval = mbc->adapter_online;
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+ return ret;
+}
+
+static int usb_get_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ struct pcf50633_mbc *mbc = container_of(psy, struct pcf50633_mbc, usb);
+ int ret = 0;
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_ONLINE:
+ val->intval = mbc->usb_online;
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+ return ret;
+}
+
+static enum power_supply_property power_props[] = {
+ POWER_SUPPLY_PROP_ONLINE,
+};
+
+static const u8 mbc_irq_handlers[] = {
+ PCF50633_IRQ_ADPINS,
+ PCF50633_IRQ_ADPREM,
+ PCF50633_IRQ_USBINS,
+ PCF50633_IRQ_USBREM,
+ PCF50633_IRQ_BATFULL,
+ PCF50633_IRQ_CHGHALT,
+ PCF50633_IRQ_THLIMON,
+ PCF50633_IRQ_THLIMOFF,
+ PCF50633_IRQ_USBLIMON,
+ PCF50633_IRQ_USBLIMOFF,
+ PCF50633_IRQ_LOWSYS,
+ PCF50633_IRQ_LOWBAT,
+};
+
+static int __devinit pcf50633_mbc_probe(struct platform_device *pdev)
+{
+ struct pcf50633_mbc *mbc;
+ struct pcf50633_subdev_pdata *pdata = pdev->dev.platform_data;
+ int ret;
+ int i;
+ u8 mbcs1;
+
+ mbc = kzalloc(sizeof(*mbc), GFP_KERNEL);
+ if (!mbc)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, mbc);
+ mbc->pcf = pdata->pcf;
+
+ /* Set up IRQ handlers */
+ for (i = 0; i < ARRAY_SIZE(mbc_irq_handlers); i++)
+ pcf50633_register_irq(mbc->pcf, mbc_irq_handlers[i],
+ pcf50633_mbc_irq_handler, mbc);
+
+ /* Create power supplies */
+ mbc->adapter.name = "adapter";
+ mbc->adapter.type = POWER_SUPPLY_TYPE_MAINS;
+ mbc->adapter.properties = power_props;
+ mbc->adapter.num_properties = ARRAY_SIZE(power_props);
+ mbc->adapter.get_property = &adapter_get_property;
+ mbc->adapter.supplied_to = mbc->pcf->pdata->batteries;
+ mbc->adapter.num_supplicants = mbc->pcf->pdata->num_batteries;
+
+ mbc->usb.name = "usb";
+ mbc->usb.type = POWER_SUPPLY_TYPE_USB;
+ mbc->usb.properties = power_props;
+ mbc->usb.num_properties = ARRAY_SIZE(power_props);
+ mbc->usb.get_property = usb_get_property;
+ mbc->usb.supplied_to = mbc->pcf->pdata->batteries;
+ mbc->usb.num_supplicants = mbc->pcf->pdata->num_batteries;
+
+ ret = power_supply_register(&pdev->dev, &mbc->adapter);
+ if (ret) {
+ dev_err(mbc->pcf->dev, "failed to register adapter\n");
+ kfree(mbc);
+ return ret;
+ }
+
+ ret = power_supply_register(&pdev->dev, &mbc->usb);
+ if (ret) {
+ dev_err(mbc->pcf->dev, "failed to register usb\n");
+ power_supply_unregister(&mbc->adapter);
+ kfree(mbc);
+ return ret;
+ }
+
+ ret = sysfs_create_group(&pdev->dev.kobj, &mbc_attr_group);
+ if (ret)
+ dev_err(mbc->pcf->dev, "failed to create sysfs entries\n");
+
+ mbcs1 = pcf50633_reg_read(mbc->pcf, PCF50633_REG_MBCS1);
+ if (mbcs1 & PCF50633_MBCS1_USBPRES)
+ pcf50633_mbc_irq_handler(PCF50633_IRQ_USBINS, mbc);
+ if (mbcs1 & PCF50633_MBCS1_ADAPTPRES)
+ pcf50633_mbc_irq_handler(PCF50633_IRQ_ADPINS, mbc);
+
+ return 0;
+}
+
+static int __devexit pcf50633_mbc_remove(struct platform_device *pdev)
+{
+ struct pcf50633_mbc *mbc = platform_get_drvdata(pdev);
+ int i;
+
+ /* Remove IRQ handlers */
+ for (i = 0; i < ARRAY_SIZE(mbc_irq_handlers); i++)
+ pcf50633_free_irq(mbc->pcf, mbc_irq_handlers[i]);
+
+ power_supply_unregister(&mbc->usb);
+ power_supply_unregister(&mbc->adapter);
+
+ kfree(mbc);
+
+ return 0;
+}
+
+static struct platform_driver pcf50633_mbc_driver = {
+ .driver = {
+ .name = "pcf50633-mbc",
+ },
+ .probe = pcf50633_mbc_probe,
+ .remove = __devexit_p(pcf50633_mbc_remove),
+};
+
+static int __init pcf50633_mbc_init(void)
+{
+ return platform_driver_register(&pcf50633_mbc_driver);
+}
+module_init(pcf50633_mbc_init);
+
+static void __exit pcf50633_mbc_exit(void)
+{
+ platform_driver_unregister(&pcf50633_mbc_driver);
+}
+module_exit(pcf50633_mbc_exit);
+
+MODULE_AUTHOR("Balaji Rao <[email protected]>");
+MODULE_DESCRIPTION("PCF50633 mbc driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pcf50633-mbc");
diff --git a/include/linux/mfd/pcf50633/mbc.h b/include/linux/mfd/pcf50633/mbc.h
new file mode 100644
index 0000000..6e17619
--- /dev/null
+++ b/include/linux/mfd/pcf50633/mbc.h
@@ -0,0 +1,134 @@
+/*
+ * mbc.h -- Driver for NXP PCF50633 Main Battery Charger
+ *
+ * (C) 2006-2008 by Openmoko, Inc.
+ * All rights reserved.
+ *
+ * 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; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __LINUX_MFD_PCF50633_MBC_H
+#define __LINUX_MFD_PCF50633_MBC_H
+
+#include <linux/mfd/pcf50633/core.h>
+#include <linux/platform_device.h>
+
+#define PCF50633_REG_MBCC1 0x43
+#define PCF50633_REG_MBCC2 0x44
+#define PCF50633_REG_MBCC3 0x45
+#define PCF50633_REG_MBCC4 0x46
+#define PCF50633_REG_MBCC5 0x47
+#define PCF50633_REG_MBCC6 0x48
+#define PCF50633_REG_MBCC7 0x49
+#define PCF50633_REG_MBCC8 0x4a
+#define PCF50633_REG_MBCS1 0x4b
+#define PCF50633_REG_MBCS2 0x4c
+#define PCF50633_REG_MBCS3 0x4d
+
+enum pcf50633_reg_mbcc1 {
+ PCF50633_MBCC1_CHGENA = 0x01, /* Charger enable */
+ PCF50633_MBCC1_AUTOSTOP = 0x02,
+ PCF50633_MBCC1_AUTORES = 0x04, /* automatic resume */
+ PCF50633_MBCC1_RESUME = 0x08, /* explicit resume cmd */
+ PCF50633_MBCC1_RESTART = 0x10, /* restart charging */
+ PCF50633_MBCC1_PREWDTIME_60M = 0x20, /* max. precharging time */
+ PCF50633_MBCC1_WDTIME_1H = 0x00,
+ PCF50633_MBCC1_WDTIME_2H = 0x40,
+ PCF50633_MBCC1_WDTIME_4H = 0x80,
+ PCF50633_MBCC1_WDTIME_6H = 0xc0,
+};
+#define PCF50633_MBCC1_WDTIME_MASK 0xc0
+
+enum pcf50633_reg_mbcc2 {
+ PCF50633_MBCC2_VBATCOND_2V7 = 0x00,
+ PCF50633_MBCC2_VBATCOND_2V85 = 0x01,
+ PCF50633_MBCC2_VBATCOND_3V0 = 0x02,
+ PCF50633_MBCC2_VBATCOND_3V15 = 0x03,
+ PCF50633_MBCC2_VMAX_4V = 0x00,
+ PCF50633_MBCC2_VMAX_4V20 = 0x28,
+ PCF50633_MBCC2_VRESDEBTIME_64S = 0x80, /* debounce time (32/64sec) */
+};
+
+enum pcf50633_reg_mbcc7 {
+ PCF50633_MBCC7_USB_100mA = 0x00,
+ PCF50633_MBCC7_USB_500mA = 0x01,
+ PCF50633_MBCC7_USB_1000mA = 0x02,
+ PCF50633_MBCC7_USB_SUSPEND = 0x03,
+ PCF50633_MBCC7_BATTEMP_EN = 0x04,
+ PCF50633_MBCC7_BATSYSIMAX_1A6 = 0x00,
+ PCF50633_MBCC7_BATSYSIMAX_1A8 = 0x40,
+ PCF50633_MBCC7_BATSYSIMAX_2A0 = 0x80,
+ PCF50633_MBCC7_BATSYSIMAX_2A2 = 0xc0,
+};
+#define PCF50633_MBCC7_USB_MASK 0x03
+
+enum pcf50633_reg_mbcc8 {
+ PCF50633_MBCC8_USBENASUS = 0x10,
+};
+
+enum pcf50633_reg_mbcs1 {
+ PCF50633_MBCS1_USBPRES = 0x01,
+ PCF50633_MBCS1_USBOK = 0x02,
+ PCF50633_MBCS1_ADAPTPRES = 0x04,
+ PCF50633_MBCS1_ADAPTOK = 0x08,
+ PCF50633_MBCS1_TBAT_OK = 0x00,
+ PCF50633_MBCS1_TBAT_ABOVE = 0x10,
+ PCF50633_MBCS1_TBAT_BELOW = 0x20,
+ PCF50633_MBCS1_TBAT_UNDEF = 0x30,
+ PCF50633_MBCS1_PREWDTEXP = 0x40,
+ PCF50633_MBCS1_WDTEXP = 0x80,
+};
+
+enum pcf50633_reg_mbcs2_mbcmod {
+ PCF50633_MBCS2_MBC_PLAY = 0x00,
+ PCF50633_MBCS2_MBC_USB_PRE = 0x01,
+ PCF50633_MBCS2_MBC_USB_PRE_WAIT = 0x02,
+ PCF50633_MBCS2_MBC_USB_FAST = 0x03,
+ PCF50633_MBCS2_MBC_USB_FAST_WAIT = 0x04,
+ PCF50633_MBCS2_MBC_USB_SUSPEND = 0x05,
+ PCF50633_MBCS2_MBC_ADP_PRE = 0x06,
+ PCF50633_MBCS2_MBC_ADP_PRE_WAIT = 0x07,
+ PCF50633_MBCS2_MBC_ADP_FAST = 0x08,
+ PCF50633_MBCS2_MBC_ADP_FAST_WAIT = 0x09,
+ PCF50633_MBCS2_MBC_BAT_FULL = 0x0a,
+ PCF50633_MBCS2_MBC_HALT = 0x0b,
+};
+#define PCF50633_MBCS2_MBC_MASK 0x0f
+enum pcf50633_reg_mbcs2_chgstat {
+ PCF50633_MBCS2_CHGS_NONE = 0x00,
+ PCF50633_MBCS2_CHGS_ADAPTER = 0x10,
+ PCF50633_MBCS2_CHGS_USB = 0x20,
+ PCF50633_MBCS2_CHGS_BOTH = 0x30,
+};
+#define PCF50633_MBCS2_RESSTAT_AUTO 0x40
+
+enum pcf50633_reg_mbcs3 {
+ PCF50633_MBCS3_USBLIM_PLAY = 0x01,
+ PCF50633_MBCS3_USBLIM_CGH = 0x02,
+ PCF50633_MBCS3_TLIM_PLAY = 0x04,
+ PCF50633_MBCS3_TLIM_CHG = 0x08,
+ PCF50633_MBCS3_ILIM = 0x10, /* 1: Ibat > Icutoff */
+ PCF50633_MBCS3_VLIM = 0x20, /* 1: Vbat == Vmax */
+ PCF50633_MBCS3_VBATSTAT = 0x40, /* 1: Vbat > Vbatcond */
+ PCF50633_MBCS3_VRES = 0x80, /* 1: Vbat > Vth(RES) */
+};
+
+#define PCF50633_MBCC2_VBATCOND_MASK 0x03
+#define PCF50633_MBCC2_VMAX_MASK 0x3c
+
+/* Charger status */
+#define PCF50633_MBC_USB_ONLINE 0x01
+#define PCF50633_MBC_USB_ACTIVE 0x02
+#define PCF50633_MBC_ADAPTER_ONLINE 0x04
+#define PCF50633_MBC_ADAPTER_ACTIVE 0x08
+
+int pcf50633_mbc_usb_curlim_set(struct pcf50633 *pcf, int ma);
+
+int pcf50633_mbc_get_status(struct pcf50633 *);
+void pcf50633_mbc_set_status(struct pcf50633 *, int what, int status);
+
+#endif
+
Signed-off-by: Balaji Rao <[email protected]>
Cc: Andy Green <[email protected]>
Cc: Dmitry Torokhov <[email protected]>
Acked-by: Dmitry Torokhov <[email protected]>
---
drivers/input/misc/Kconfig | 7 ++
drivers/input/misc/Makefile | 1
drivers/input/misc/pcf50633-input.c | 132 +++++++++++++++++++++++++++++++++++
3 files changed, 140 insertions(+), 0 deletions(-)
create mode 100644 drivers/input/misc/pcf50633-input.c
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index 199055d..67e5553 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -220,4 +220,11 @@ config HP_SDC_RTC
Say Y here if you want to support the built-in real time clock
of the HP SDC controller.
+config INPUT_PCF50633_PMU
+ tristate "PCF50633 PMU events"
+ depends on MFD_PCF50633
+ help
+ Say Y to include support for delivering PMU events via input
+ layer on NXP PCF50633.
+
endif
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index d7db2ae..bb62e6e 100644
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -21,3 +21,4 @@ obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o
obj-$(CONFIG_INPUT_UINPUT) += uinput.o
obj-$(CONFIG_INPUT_APANEL) += apanel.o
obj-$(CONFIG_INPUT_SGI_BTNS) += sgi_btns.o
+obj-$(CONFIG_INPUT_PCF50633_PMU) += pcf50633-input.o
diff --git a/drivers/input/misc/pcf50633-input.c b/drivers/input/misc/pcf50633-input.c
new file mode 100644
index 0000000..039dcb0
--- /dev/null
+++ b/drivers/input/misc/pcf50633-input.c
@@ -0,0 +1,132 @@
+/* NXP PCF50633 Input Driver
+ *
+ * (C) 2006-2008 by Openmoko, Inc.
+ * Author: Balaji Rao <[email protected]>
+ * All rights reserved.
+ *
+ * Broken down from monstrous PCF50633 driver mainly by
+ * Harald Welte, Andy Green and Werner Almesberger
+ *
+ * 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; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+
+#include <linux/mfd/pcf50633/core.h>
+
+#define PCF50633_OOCSTAT_ONKEY 0x01
+#define PCF50633_REG_OOCSTAT 0x12
+#define PCF50633_REG_OOCMODE 0x10
+
+struct pcf50633_input {
+ struct pcf50633 *pcf;
+ struct input_dev *input_dev;
+};
+
+static void
+pcf50633_input_irq(int irq, void *data)
+{
+ struct pcf50633_input *input;
+ int onkey_released;
+
+ input = data;
+
+ /* We report only one event depending on the key press status */
+ onkey_released = pcf50633_reg_read(input->pcf, PCF50633_REG_OOCSTAT)
+ & PCF50633_OOCSTAT_ONKEY;
+
+ if (irq == PCF50633_IRQ_ONKEYF && !onkey_released)
+ input_report_key(input->input_dev, KEY_POWER, 1);
+ else if (irq == PCF50633_IRQ_ONKEYR && onkey_released)
+ input_report_key(input->input_dev, KEY_POWER, 0);
+
+ input_sync(input->input_dev);
+}
+
+static int __devinit pcf50633_input_probe(struct platform_device *pdev)
+{
+ struct pcf50633_input *input;
+ struct pcf50633_subdev_pdata *pdata = pdev->dev.platform_data;
+ struct input_dev *input_dev;
+ int ret;
+
+
+ input = kzalloc(sizeof(*input), GFP_KERNEL);
+ if (!input)
+ return -ENOMEM;
+
+ input_dev = input_allocate_device();
+ if (!input_dev) {
+ kfree(input);
+ return -ENOMEM;
+ }
+
+ platform_set_drvdata(pdev, input);
+ input->pcf = pdata->pcf;
+ input->input_dev = input_dev;
+
+ input_dev->name = "PCF50633 PMU events";
+ input_dev->id.bustype = BUS_I2C;
+ input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_PWR);
+ set_bit(KEY_POWER, input_dev->keybit);
+
+ ret = input_register_device(input_dev);
+ if (ret) {
+ input_free_device(input_dev);
+ kfree(input);
+ return ret;
+ }
+ pcf50633_register_irq(pdata->pcf, PCF50633_IRQ_ONKEYR,
+ pcf50633_input_irq, input);
+ pcf50633_register_irq(pdata->pcf, PCF50633_IRQ_ONKEYF,
+ pcf50633_input_irq, input);
+
+ return 0;
+}
+
+static int __devexit pcf50633_input_remove(struct platform_device *pdev)
+{
+ struct pcf50633_input *input = platform_get_drvdata(pdev);
+
+ pcf50633_free_irq(input->pcf, PCF50633_IRQ_ONKEYR);
+ pcf50633_free_irq(input->pcf, PCF50633_IRQ_ONKEYF);
+
+ input_unregister_device(input->input_dev);
+ kfree(input);
+
+ return 0;
+}
+
+static struct platform_driver pcf50633_input_driver = {
+ .driver = {
+ .name = "pcf50633-input",
+ },
+ .probe = pcf50633_input_probe,
+ .remove = __devexit_p(pcf50633_input_remove),
+};
+
+static int __init pcf50633_input_init(void)
+{
+ return platform_driver_register(&pcf50633_input_driver);
+}
+module_init(pcf50633_input_init);
+
+static void __exit pcf50633_input_exit(void)
+{
+ platform_driver_unregister(&pcf50633_input_driver);
+}
+module_exit(pcf50633_input_exit);
+
+MODULE_AUTHOR("Balaji Rao <[email protected]>");
+MODULE_DESCRIPTION("PCF50633 input driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pcf50633-input");
Changes from V1:
- Removed support for suspend_enable & suspend_disable functions.
Signed-off-by: Balaji Rao <[email protected]>
Cc: Andy Green <[email protected]>
Cc: Liam Girdwood <[email protected]>
Acked-by: Mark Brown <[email protected]>
---
drivers/regulator/Kconfig | 7 +
drivers/regulator/Makefile | 1
drivers/regulator/pcf50633-regulator.c | 329 ++++++++++++++++++++++++++++++++
include/linux/mfd/pcf50633/pmic.h | 67 +++++++
4 files changed, 404 insertions(+), 0 deletions(-)
create mode 100644 drivers/regulator/pcf50633-regulator.c
create mode 100644 include/linux/mfd/pcf50633/pmic.h
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 39360e2..e7e0cf1 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -73,4 +73,11 @@ config REGULATOR_DA903X
Say y here to support the BUCKs and LDOs regulators found on
Dialog Semiconductor DA9030/DA9034 PMIC.
+config REGULATOR_PCF50633
+ tristate "PCF50633 regulator driver"
+ depends on MFD_PCF50633
+ help
+ Say Y here to support the voltage regulators and convertors
+ on PCF50633
+
endif
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index 254d40c..61b30c6 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -11,5 +11,6 @@ obj-$(CONFIG_REGULATOR_BQ24022) += bq24022.o
obj-$(CONFIG_REGULATOR_WM8350) += wm8350-regulator.o
obj-$(CONFIG_REGULATOR_WM8400) += wm8400-regulator.o
obj-$(CONFIG_REGULATOR_DA903X) += da903x.o
+obj-$(CONFIG_REGULATOR_PCF50633) += pcf50633-regulator.o
ccflags-$(CONFIG_REGULATOR_DEBUG) += -DDEBUG
diff --git a/drivers/regulator/pcf50633-regulator.c b/drivers/regulator/pcf50633-regulator.c
new file mode 100644
index 0000000..4cc85ec
--- /dev/null
+++ b/drivers/regulator/pcf50633-regulator.c
@@ -0,0 +1,329 @@
+/* NXP PCF50633 PMIC Driver
+ *
+ * (C) 2006-2008 by Openmoko, Inc.
+ * Author: Balaji Rao <[email protected]>
+ * All rights reserved.
+ *
+ * Broken down from monstrous PCF50633 driver mainly by
+ * Harald Welte and Andy Green and Werner Almesberger
+ *
+ * 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; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+
+#include <linux/mfd/pcf50633/core.h>
+#include <linux/mfd/pcf50633/pmic.h>
+
+#define PCF50633_REGULATOR(_name, _id) \
+ { \
+ .name = _name, \
+ .id = _id, \
+ .ops = &pcf50633_regulator_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+ }
+
+static const u8 pcf50633_regulator_registers[PCF50633_NUM_REGULATORS] = {
+ [PCF50633_REGULATOR_AUTO] = PCF50633_REG_AUTOOUT,
+ [PCF50633_REGULATOR_DOWN1] = PCF50633_REG_DOWN1OUT,
+ [PCF50633_REGULATOR_DOWN2] = PCF50633_REG_DOWN2OUT,
+ [PCF50633_REGULATOR_MEMLDO] = PCF50633_REG_MEMLDOOUT,
+ [PCF50633_REGULATOR_LDO1] = PCF50633_REG_LDO1OUT,
+ [PCF50633_REGULATOR_LDO2] = PCF50633_REG_LDO2OUT,
+ [PCF50633_REGULATOR_LDO3] = PCF50633_REG_LDO3OUT,
+ [PCF50633_REGULATOR_LDO4] = PCF50633_REG_LDO4OUT,
+ [PCF50633_REGULATOR_LDO5] = PCF50633_REG_LDO5OUT,
+ [PCF50633_REGULATOR_LDO6] = PCF50633_REG_LDO6OUT,
+ [PCF50633_REGULATOR_HCLDO] = PCF50633_REG_HCLDOOUT,
+};
+
+/* Bits from voltage value */
+static u8 auto_voltage_bits(unsigned int millivolts)
+{
+ if (millivolts < 1800)
+ return 0;
+ if (millivolts > 3800)
+ return 0xff;
+
+ millivolts -= 625;
+
+ return millivolts / 25;
+}
+
+static u8 down_voltage_bits(unsigned int millivolts)
+{
+ if (millivolts < 625)
+ return 0;
+ else if (millivolts > 3000)
+ return 0xff;
+
+ millivolts -= 625;
+
+ return millivolts / 25;
+}
+
+static u8 ldo_voltage_bits(unsigned int millivolts)
+{
+ if (millivolts < 900)
+ return 0;
+ else if (millivolts > 3600)
+ return 0x1f;
+
+ millivolts -= 900;
+ return millivolts / 100;
+}
+
+/* Obtain voltage value from bits */
+static unsigned int auto_voltage_value(u8 bits)
+{
+ if (bits < 0x2f)
+ return 0;
+
+ return 625 + (bits * 25);
+}
+
+
+static unsigned int down_voltage_value(u8 bits)
+{
+ return 625 + (bits * 25);
+}
+
+
+static unsigned int ldo_voltage_value(u8 bits)
+{
+ bits &= 0x1f;
+
+ return 900 + (bits * 100);
+}
+
+static int pcf50633_regulator_set_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV)
+{
+ struct pcf50633 *pcf;
+ int regulator_id, millivolts;
+ u8 volt_bits, regnr;
+
+ pcf = rdev_get_drvdata(rdev);
+
+ regulator_id = rdev_get_id(rdev);
+ if (regulator_id >= PCF50633_NUM_REGULATORS)
+ return -EINVAL;
+
+ millivolts = min_uV / 1000;
+
+ regnr = pcf50633_regulator_registers[regulator_id];
+
+ switch (regulator_id) {
+ case PCF50633_REGULATOR_AUTO:
+ volt_bits = auto_voltage_bits(millivolts);
+ break;
+ case PCF50633_REGULATOR_DOWN1:
+ volt_bits = down_voltage_bits(millivolts);
+ break;
+ case PCF50633_REGULATOR_DOWN2:
+ volt_bits = down_voltage_bits(millivolts);
+ break;
+ case PCF50633_REGULATOR_LDO1:
+ case PCF50633_REGULATOR_LDO2:
+ case PCF50633_REGULATOR_LDO3:
+ case PCF50633_REGULATOR_LDO4:
+ case PCF50633_REGULATOR_LDO5:
+ case PCF50633_REGULATOR_LDO6:
+ case PCF50633_REGULATOR_HCLDO:
+ volt_bits = ldo_voltage_bits(millivolts);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return pcf50633_reg_write(pcf, regnr, volt_bits);
+}
+
+static int pcf50633_regulator_get_voltage(struct regulator_dev *rdev)
+{
+ struct pcf50633 *pcf;
+ int regulator_id, millivolts, volt_bits;
+ u8 regnr;
+
+ pcf = rdev_get_drvdata(rdev);;
+
+ regulator_id = rdev_get_id(rdev);
+ if (regulator_id >= PCF50633_NUM_REGULATORS)
+ return -EINVAL;
+
+ regnr = pcf50633_regulator_registers[regulator_id];
+
+ volt_bits = pcf50633_reg_read(pcf, regnr);
+ if (volt_bits < 0)
+ return -1;
+
+ switch (regulator_id) {
+ case PCF50633_REGULATOR_AUTO:
+ millivolts = auto_voltage_value(volt_bits);
+ break;
+ case PCF50633_REGULATOR_DOWN1:
+ millivolts = down_voltage_value(volt_bits);
+ break;
+ case PCF50633_REGULATOR_DOWN2:
+ millivolts = down_voltage_value(volt_bits);
+ break;
+ case PCF50633_REGULATOR_LDO1:
+ case PCF50633_REGULATOR_LDO2:
+ case PCF50633_REGULATOR_LDO3:
+ case PCF50633_REGULATOR_LDO4:
+ case PCF50633_REGULATOR_LDO5:
+ case PCF50633_REGULATOR_LDO6:
+ case PCF50633_REGULATOR_HCLDO:
+ millivolts = ldo_voltage_value(volt_bits);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return millivolts * 1000;
+}
+
+static int pcf50633_regulator_enable(struct regulator_dev *rdev)
+{
+ struct pcf50633 *pcf = rdev_get_drvdata(rdev);
+ int regulator_id;
+ u8 regnr;
+
+ regulator_id = rdev_get_id(rdev);
+ if (regulator_id >= PCF50633_NUM_REGULATORS)
+ return -EINVAL;
+
+ /* The *ENA register is always one after the *OUT register */
+ regnr = pcf50633_regulator_registers[regulator_id] + 1;
+
+ return pcf50633_reg_set_bit_mask(pcf, regnr, PCF50633_REGULATOR_ON,
+ PCF50633_REGULATOR_ON);
+}
+
+static int pcf50633_regulator_disable(struct regulator_dev *rdev)
+{
+ struct pcf50633 *pcf = rdev_get_drvdata(rdev);
+ int regulator_id;
+ u8 regnr;
+
+ regulator_id = rdev_get_id(rdev);
+ if (regulator_id >= PCF50633_NUM_REGULATORS)
+ return -EINVAL;
+
+ /* the *ENA register is always one after the *OUT register */
+ regnr = pcf50633_regulator_registers[regulator_id] + 1;
+
+ return pcf50633_reg_set_bit_mask(pcf, regnr,
+ PCF50633_REGULATOR_ON, 0);
+}
+
+static int pcf50633_regulator_is_enabled(struct regulator_dev *rdev)
+{
+ struct pcf50633 *pcf = rdev_get_drvdata(rdev);
+ int regulator_id = rdev_get_id(rdev);
+ u8 regnr;
+
+ regulator_id = rdev_get_id(rdev);
+ if (regulator_id >= PCF50633_NUM_REGULATORS)
+ return -EINVAL;
+
+ /* the *ENA register is always one after the *OUT register */
+ regnr = pcf50633_regulator_registers[regulator_id] + 1;
+
+ return pcf50633_reg_read(pcf, regnr) & PCF50633_REGULATOR_ON;
+}
+
+static struct regulator_ops pcf50633_regulator_ops = {
+ .set_voltage = pcf50633_regulator_set_voltage,
+ .get_voltage = pcf50633_regulator_get_voltage,
+ .enable = pcf50633_regulator_enable,
+ .disable = pcf50633_regulator_disable,
+ .is_enabled = pcf50633_regulator_is_enabled,
+};
+
+static struct regulator_desc regulators[] = {
+ [PCF50633_REGULATOR_AUTO] =
+ PCF50633_REGULATOR("auto", PCF50633_REGULATOR_AUTO),
+ [PCF50633_REGULATOR_DOWN1] =
+ PCF50633_REGULATOR("down1", PCF50633_REGULATOR_DOWN1),
+ [PCF50633_REGULATOR_DOWN2] =
+ PCF50633_REGULATOR("down2", PCF50633_REGULATOR_DOWN2),
+ [PCF50633_REGULATOR_LDO1] =
+ PCF50633_REGULATOR("ldo1", PCF50633_REGULATOR_LDO1),
+ [PCF50633_REGULATOR_LDO2] =
+ PCF50633_REGULATOR("ldo2", PCF50633_REGULATOR_LDO2),
+ [PCF50633_REGULATOR_LDO3] =
+ PCF50633_REGULATOR("ldo3", PCF50633_REGULATOR_LDO3),
+ [PCF50633_REGULATOR_LDO4] =
+ PCF50633_REGULATOR("ldo4", PCF50633_REGULATOR_LDO4),
+ [PCF50633_REGULATOR_LDO5] =
+ PCF50633_REGULATOR("ldo5", PCF50633_REGULATOR_LDO5),
+ [PCF50633_REGULATOR_LDO6] =
+ PCF50633_REGULATOR("ldo6", PCF50633_REGULATOR_LDO6),
+ [PCF50633_REGULATOR_HCLDO] =
+ PCF50633_REGULATOR("hcldo", PCF50633_REGULATOR_HCLDO),
+ [PCF50633_REGULATOR_MEMLDO] =
+ PCF50633_REGULATOR("memldo", PCF50633_REGULATOR_MEMLDO),
+};
+
+static int __devinit pcf50633_regulator_probe(struct platform_device *pdev)
+{
+ struct regulator_dev *rdev;
+ struct pcf50633 *pcf;
+
+ /* Already set by core driver */
+ pcf = platform_get_drvdata(pdev);
+
+ rdev = regulator_register(®ulators[pdev->id], &pdev->dev, pcf);
+ if (IS_ERR(rdev))
+ return PTR_ERR(rdev);
+
+ if (pcf->pdata->regulator_registered)
+ pcf->pdata->regulator_registered(pcf, pdev->id);
+
+ return 0;
+}
+
+static int __devexit pcf50633_regulator_remove(struct platform_device *pdev)
+{
+ struct regulator_dev *rdev = platform_get_drvdata(pdev);
+
+ regulator_unregister(rdev);
+
+ return 0;
+}
+
+static struct platform_driver pcf50633_regulator_driver = {
+ .driver = {
+ .name = "pcf50633-regltr",
+ },
+ .probe = pcf50633_regulator_probe,
+ .remove = __devexit_p(pcf50633_regulator_remove),
+};
+
+static int __init pcf50633_regulator_init(void)
+{
+ return platform_driver_register(&pcf50633_regulator_driver);
+}
+module_init(pcf50633_regulator_init);
+
+static void __exit pcf50633_regulator_exit(void)
+{
+ platform_driver_unregister(&pcf50633_regulator_driver);
+}
+module_exit(pcf50633_regulator_exit);
+
+MODULE_AUTHOR("Balaji Rao <[email protected]>");
+MODULE_DESCRIPTION("PCF50633 regulator driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pcf50633-regulator");
diff --git a/include/linux/mfd/pcf50633/pmic.h b/include/linux/mfd/pcf50633/pmic.h
new file mode 100644
index 0000000..2d3dbe5
--- /dev/null
+++ b/include/linux/mfd/pcf50633/pmic.h
@@ -0,0 +1,67 @@
+#ifndef __LINUX_MFD_PCF50633_PMIC_H
+#define __LINUX_MFD_PCF50633_PMIC_H
+
+#include <linux/mfd/pcf50633/core.h>
+#include <linux/platform_device.h>
+
+#define PCF50633_REG_AUTOOUT 0x1a
+#define PCF50633_REG_AUTOENA 0x1b
+#define PCF50633_REG_AUTOCTL 0x1c
+#define PCF50633_REG_AUTOMXC 0x1d
+#define PCF50633_REG_DOWN1OUT 0x1e
+#define PCF50633_REG_DOWN1ENA 0x1f
+#define PCF50633_REG_DOWN1CTL 0x20
+#define PCF50633_REG_DOWN1MXC 0x21
+#define PCF50633_REG_DOWN2OUT 0x22
+#define PCF50633_REG_DOWN2ENA 0x23
+#define PCF50633_REG_DOWN2CTL 0x24
+#define PCF50633_REG_DOWN2MXC 0x25
+#define PCF50633_REG_MEMLDOOUT 0x26
+#define PCF50633_REG_MEMLDOENA 0x27
+#define PCF50633_REG_LDO1OUT 0x2d
+#define PCF50633_REG_LDO1ENA 0x2e
+#define PCF50633_REG_LDO2OUT 0x2f
+#define PCF50633_REG_LDO2ENA 0x30
+#define PCF50633_REG_LDO3OUT 0x31
+#define PCF50633_REG_LDO3ENA 0x32
+#define PCF50633_REG_LDO4OUT 0x33
+#define PCF50633_REG_LDO4ENA 0x34
+#define PCF50633_REG_LDO5OUT 0x35
+#define PCF50633_REG_LDO5ENA 0x36
+#define PCF50633_REG_LDO6OUT 0x37
+#define PCF50633_REG_LDO6ENA 0x38
+#define PCF50633_REG_HCLDOOUT 0x39
+#define PCF50633_REG_HCLDOENA 0x3a
+#define PCF50633_REG_HCLDOOVL 0x40
+
+enum pcf50633_regulator_enable {
+ PCF50633_REGULATOR_ON = 0x01,
+ PCF50633_REGULATOR_ON_GPIO1 = 0x02,
+ PCF50633_REGULATOR_ON_GPIO2 = 0x04,
+ PCF50633_REGULATOR_ON_GPIO3 = 0x08,
+};
+#define PCF50633_REGULATOR_ON_MASK 0x0f
+
+enum pcf50633_regulator_phase {
+ PCF50633_REGULATOR_ACTPH1 = 0x00,
+ PCF50633_REGULATOR_ACTPH2 = 0x10,
+ PCF50633_REGULATOR_ACTPH3 = 0x20,
+ PCF50633_REGULATOR_ACTPH4 = 0x30,
+};
+#define PCF50633_REGULATOR_ACTPH_MASK 0x30
+
+enum pcf50633_regulator_id {
+ PCF50633_REGULATOR_AUTO,
+ PCF50633_REGULATOR_DOWN1,
+ PCF50633_REGULATOR_DOWN2,
+ PCF50633_REGULATOR_LDO1,
+ PCF50633_REGULATOR_LDO2,
+ PCF50633_REGULATOR_LDO3,
+ PCF50633_REGULATOR_LDO4,
+ PCF50633_REGULATOR_LDO5,
+ PCF50633_REGULATOR_LDO6,
+ PCF50633_REGULATOR_HCLDO,
+ PCF50633_REGULATOR_MEMLDO,
+};
+#endif
+
On Mon, 05 Jan 2009 23:44:31 +0530
Balaji Rao <[email protected]> wrote:
> Signed-off-by: Balaji Rao <[email protected]>
> Cc: Andy Green <[email protected]>
> Cc: Alessandro Zummo <[email protected]>
> Cc: Paul Gortmaker <[email protected]>
> Cc: [email protected]
Acked-by: Alessandro Zummo <[email protected]>
--
Best regards,
Alessandro Zummo,
Tower Technologies - Torino, Italy
http://www.towertech.it
On Mon, 05 Jan 2009 23:42:42 +0530
Balaji Rao <[email protected]> wrote:
> The following series implements support for NXP PCF50633. It's basically
> an I2C device with 9 regulators, an ADC, a PMIC, a Battery Charger
> and a RTC.
>
> This chip is used in Openmoko Neo Freerunner mobile phone.
>
> The specs are open and are available at
> http://people.openmoko.org/tony_tu/GTA02/datasheet/PMU/PCF50633DS_02.pdf
>
> ---
> Balaji Rao (7):
> mfd: PCF50633 core driver
> mfd: PCF50633 adc driver
> mfd: PCF50633 gpio support
> rtc: PCF50633 rtc driver
> power_supply: PCF50633 battery charger driver
> input: PCF50633 input driver
> regulator: PCF50633 pmic driver
You have patches here which should strictly be merged by various
different subsystem trees. That gets tricky because presumably there
are dependencies.
What _are_ the dependencies here? Do patches 2-7 depend upon #1, perhaps?
If so, then one approach would be to merge the first patch into
mainline now then trickle the rest out into subsystem trees.
Or, with suitable acks, I can merge the lot. Perhaps into 2.6.29..
On Mon, Jan 12, 2009 at 02:44:34PM -0800, Andrew Morton wrote:
> On Mon, 05 Jan 2009 23:42:42 +0530
> Balaji Rao <[email protected]> wrote:
>
> > The following series implements support for NXP PCF50633. It's basically
> > an I2C device with 9 regulators, an ADC, a PMIC, a Battery Charger
> > and a RTC.
> >
> > This chip is used in Openmoko Neo Freerunner mobile phone.
> >
> > The specs are open and are available at
> > http://people.openmoko.org/tony_tu/GTA02/datasheet/PMU/PCF50633DS_02.pdf
> >
> > ---
> > Balaji Rao (7):
> > mfd: PCF50633 core driver
> > mfd: PCF50633 adc driver
> > mfd: PCF50633 gpio support
> > rtc: PCF50633 rtc driver
> > power_supply: PCF50633 battery charger driver
> > input: PCF50633 input driver
> > regulator: PCF50633 pmic driver
>
> You have patches here which should strictly be merged by various
> different subsystem trees. That gets tricky because presumably there
> are dependencies.
>
> What _are_ the dependencies here? Do patches 2-7 depend upon #1, perhaps?
>
yes, patches 2-7 depend on the first one.
> If so, then one approach would be to merge the first patch into
> mainline now then trickle the rest out into subsystem trees.
>
> Or, with suitable acks, I can merge the lot. Perhaps into 2.6.29..
>
Andrew,
Samuel had sent a git-pull for the linux-mfd tree containing this series a couple
of days ago and now I see that it's merged. So, I think you can remove
these from -mm.
Thanks,
Balaji