From: "Ivan T. Ivanov" <[email protected]>
Hi,
This is third version of MSM OTG clean up patches.
v3
--
* In patch 1 - functions for reseting PHY and LINK controller just
call platform code if available.
* New stuff is: cleaning up unneeded/unused driver state variables
* Simplified regulator names. There is no references to these names
in tree, so there should not be a problem with this.
* Replace the USB specific clock names with the more standard 'core'
and 'iface' ... names.
* Added devicetree support
v2
--
* Fix compilation issue in patch 1
* Separate regulator changes
* Merge devm_ related changes to one commit
* Drop Lindent patch
v1
--
Following patches make initial cleanup of usb phy found in the Qualcomm
chipsets. Changes include:
* Build time error fix.
* Move driver to Managed Device Resource allocation.
* Checkpatch warnings and error fixes
* Removed usage of global regulators variables.
Ivan T. Ivanov (13):
usb: phy: msm: Move mach depndend code to platform data
usb: phy: msm: Move global regulators variables to driver state
usb: phy: msm: Migrate to Managed Device Resource allocation
usb: phy: msm: Remove unnecessarily check for valid regulators.
usb: phy: msm: Fix WARNING: quoted string split across lines
usb: phy: msm: Fix WARNING: Prefer seq_puts to seq_printf
usb: phy: msm: Replace custom enum usb_mode_type with enum
usb_dr_mode
usb: phy: msm: Drop default usb_dr_mode from platform data.
usb: phy: msm: Remove unused pclk_src_name
usb: phy: msm: Switch clock consumer strings
usb: phy: msm: Remove HSUSB prefix from requlator names
usb: phy: msm: Properly check core interrupt number
usb: phy: msm: Add device tree support and binding information
.../devicetree/bindings/usb/msm-hsusb.txt | 58 +++
arch/arm/mach-msm/board-msm7x30.c | 37 +-
arch/arm/mach-msm/board-qsd8x50.c | 37 +-
arch/arm/mach-msm/devices-msm7x00.c | 4 +-
arch/arm/mach-msm/devices-msm7x30.c | 8 +-
arch/arm/mach-msm/devices-qsd8x50.c | 6 +-
drivers/usb/phy/phy-msm-usb.c | 470 +++++++++-----------
include/linux/usb/msm_hsusb.h | 45 +-
8 files changed, 362 insertions(+), 303 deletions(-)
--
1.7.9.5
From: "Ivan T. Ivanov" <[email protected]>
Whether regulators are available or not is checked at driver
probe. If they are not available driver will refuse to load,
so no need to check them again.
Signed-off-by: Ivan T. Ivanov <[email protected]>
---
drivers/usb/phy/phy-msm-usb.c | 10 ----------
1 file changed, 10 deletions(-)
diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
index 136f063..b77441b 100644
--- a/drivers/usb/phy/phy-msm-usb.c
+++ b/drivers/usb/phy/phy-msm-usb.c
@@ -159,16 +159,6 @@ static int msm_hsusb_ldo_set_mode(struct msm_otg *motg, int on)
{
int ret = 0;
- if (!motg->v1p8 || IS_ERR(motg->v1p8)) {
- pr_err("%s: HSUSB_1p8 is not initialized\n", __func__);
- return -ENODEV;
- }
-
- if (!motg->v3p3 || IS_ERR(motg->v3p3)) {
- pr_err("%s: HSUSB_3p3 is not initialized\n", __func__);
- return -ENODEV;
- }
-
if (on) {
ret = regulator_set_optimum_mode(motg->v1p8,
USB_PHY_1P8_HPM_LOAD);
--
1.7.9.5
From: "Ivan T. Ivanov" <[email protected]>
This patch fix compilation error and is an intermediate step
before the addition of DeviceTree support for newer targets.
Cc: David Brown <[email protected]>
Cc: Daniel Walker <[email protected]>
Cc: Felipe Balbi <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Ivan T. Ivanov <[email protected]>
---
arch/arm/mach-msm/board-msm7x30.c | 35 +++++++++++++++++++++++++++++++++++
arch/arm/mach-msm/board-qsd8x50.c | 35 +++++++++++++++++++++++++++++++++++
drivers/usb/phy/phy-msm-usb.c | 34 ++++++++++++++--------------------
include/linux/usb/msm_hsusb.h | 3 +++
4 files changed, 87 insertions(+), 20 deletions(-)
diff --git a/arch/arm/mach-msm/board-msm7x30.c b/arch/arm/mach-msm/board-msm7x30.c
index f9af5a4..46de789 100644
--- a/arch/arm/mach-msm/board-msm7x30.c
+++ b/arch/arm/mach-msm/board-msm7x30.c
@@ -30,6 +30,7 @@
#include <asm/memory.h>
#include <asm/setup.h>
+#include <mach/clk.h>
#include <mach/msm_iomap.h>
#include <mach/dma.h>
@@ -60,10 +61,44 @@ static int hsusb_phy_init_seq[] = {
-1
};
+static int hsusb_link_clk_reset(struct clk *link_clk, bool assert)
+{
+ int ret;
+
+ if (assert) {
+ ret = clk_reset(link_clk, CLK_RESET_ASSERT);
+ if (ret)
+ pr_err("usb hs_clk assert failed\n");
+ } else {
+ ret = clk_reset(link_clk, CLK_RESET_DEASSERT);
+ if (ret)
+ pr_err("usb hs_clk deassert failed\n");
+ }
+ return ret;
+}
+
+static int hsusb_phy_clk_reset(struct clk *phy_clk)
+{
+ int ret;
+
+ ret = clk_reset(phy_clk, CLK_RESET_ASSERT);
+ if (ret) {
+ pr_err("usb phy clk assert failed\n");
+ return ret;
+ }
+ usleep_range(10000, 12000);
+ ret = clk_reset(phy_clk, CLK_RESET_DEASSERT);
+ if (ret)
+ pr_err("usb phy clk deassert failed\n");
+ return ret;
+}
+
static struct msm_otg_platform_data msm_otg_pdata = {
.phy_init_seq = hsusb_phy_init_seq,
.mode = USB_PERIPHERAL,
.otg_control = OTG_PHY_CONTROL,
+ .link_clk_reset = hsusb_link_clk_reset,
+ .phy_clk_reset = hsusb_phy_clk_reset,
};
struct msm_gpiomux_config msm_gpiomux_configs[GPIOMUX_NGPIOS] = {
diff --git a/arch/arm/mach-msm/board-qsd8x50.c b/arch/arm/mach-msm/board-qsd8x50.c
index 5f933bc..9169ec3 100644
--- a/arch/arm/mach-msm/board-qsd8x50.c
+++ b/arch/arm/mach-msm/board-qsd8x50.c
@@ -31,6 +31,7 @@
#include <mach/irqs.h>
#include <mach/sirc.h>
#include <mach/vreg.h>
+#include <mach/clk.h>
#include <linux/platform_data/mmc-msm_sdcc.h>
#include "devices.h"
@@ -81,10 +82,44 @@ static int hsusb_phy_init_seq[] = {
-1
};
+static int hsusb_link_clk_reset(struct clk *link_clk, bool assert)
+{
+ int ret;
+
+ if (assert) {
+ ret = clk_reset(link_clk, CLK_RESET_ASSERT);
+ if (ret)
+ pr_err("usb hs_clk assert failed\n");
+ } else {
+ ret = clk_reset(link_clk, CLK_RESET_DEASSERT);
+ if (ret)
+ pr_err("usb hs_clk deassert failed\n");
+ }
+ return ret;
+}
+
+static int hsusb_phy_clk_reset(struct clk *phy_clk)
+{
+ int ret;
+
+ ret = clk_reset(phy_clk, CLK_RESET_ASSERT);
+ if (ret) {
+ pr_err("usb phy clk assert failed\n");
+ return ret;
+ }
+ usleep_range(10000, 12000);
+ ret = clk_reset(phy_clk, CLK_RESET_DEASSERT);
+ if (ret)
+ pr_err("usb phy clk deassert failed\n");
+ return ret;
+}
+
static struct msm_otg_platform_data msm_otg_pdata = {
.phy_init_seq = hsusb_phy_init_seq,
.mode = USB_PERIPHERAL,
.otg_control = OTG_PHY_CONTROL,
+ .link_clk_reset = hsusb_link_clk_reset,
+ .phy_clk_reset = hsusb_phy_clk_reset,
};
static struct platform_device *devices[] __initdata = {
diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
index e9d4cd9..118798d 100644
--- a/drivers/usb/phy/phy-msm-usb.c
+++ b/drivers/usb/phy/phy-msm-usb.c
@@ -40,8 +40,6 @@
#include <linux/usb/msm_hsusb_hw.h>
#include <linux/regulator/consumer.h>
-#include <mach/clk.h>
-
#define MSM_USB_BASE (motg->regs)
#define DRIVER_NAME "msm_otg"
@@ -308,33 +306,29 @@ static void ulpi_init(struct msm_otg *motg)
static int msm_otg_link_clk_reset(struct msm_otg *motg, bool assert)
{
- int ret;
+ int ret = 0;
+
+ if (!motg->pdata->link_clk_reset)
+ return ret;
+
+ ret = motg->pdata->link_clk_reset(motg->clk, assert);
+ if (ret)
+ dev_err(motg->phy.dev, "usb link clk reset failed\n");
- if (assert) {
- ret = clk_reset(motg->clk, CLK_RESET_ASSERT);
- if (ret)
- dev_err(motg->phy.dev, "usb hs_clk assert failed\n");
- } else {
- ret = clk_reset(motg->clk, CLK_RESET_DEASSERT);
- if (ret)
- dev_err(motg->phy.dev, "usb hs_clk deassert failed\n");
- }
return ret;
}
static int msm_otg_phy_clk_reset(struct msm_otg *motg)
{
- int ret;
+ int ret = 0;
- ret = clk_reset(motg->phy_reset_clk, CLK_RESET_ASSERT);
- if (ret) {
- dev_err(motg->phy.dev, "usb phy clk assert failed\n");
+ if (!motg->pdata->phy_clk_reset)
return ret;
- }
- usleep_range(10000, 12000);
- ret = clk_reset(motg->phy_reset_clk, CLK_RESET_DEASSERT);
+
+ ret = motg->pdata->phy_clk_reset(motg->phy_reset_clk);
if (ret)
- dev_err(motg->phy.dev, "usb phy clk deassert failed\n");
+ dev_err(motg->phy.dev, "usb phy clk assert failed\n");
+
return ret;
}
diff --git a/include/linux/usb/msm_hsusb.h b/include/linux/usb/msm_hsusb.h
index 22a396c..3275483 100644
--- a/include/linux/usb/msm_hsusb.h
+++ b/include/linux/usb/msm_hsusb.h
@@ -20,6 +20,7 @@
#include <linux/types.h>
#include <linux/usb/otg.h>
+#include <linux/clk.h>
/**
* Supported USB modes
@@ -135,6 +136,8 @@ struct msm_otg_platform_data {
enum msm_usb_phy_type phy_type;
void (*setup_gpio)(enum usb_otg_state state);
char *pclk_src_name;
+ int (*link_clk_reset)(struct clk *link_clk, bool assert);
+ int (*phy_clk_reset)(struct clk *phy_clk);
};
/**
--
1.7.9.5
From: "Ivan T. Ivanov" <[email protected]>
Allows MSM OTG controller to be specified via device tree.
Signed-off-by: Ivan T. Ivanov <[email protected]>
---
.../devicetree/bindings/usb/msm-hsusb.txt | 58 +++++++++++++++++++
drivers/usb/phy/phy-msm-usb.c | 59 ++++++++++++++++++--
2 files changed, 112 insertions(+), 5 deletions(-)
diff --git a/Documentation/devicetree/bindings/usb/msm-hsusb.txt b/Documentation/devicetree/bindings/usb/msm-hsusb.txt
index 5ea26c6..4ed8d1a 100644
--- a/Documentation/devicetree/bindings/usb/msm-hsusb.txt
+++ b/Documentation/devicetree/bindings/usb/msm-hsusb.txt
@@ -15,3 +15,61 @@ Example EHCI controller device node:
usb-phy = <&usb_otg>;
};
+
+OTG:
+
+Required properties:
+- compatible: should contain "qcom,hsusb-otg"
+- regs: offset and length of the register set in the memory map
+- interrupts: interrupt-specifier for the OTG interrupt.
+
+- clocks: A list of phandle + clock-specifier pairs for the
+ clocks listed in clock-names
+- clock-names: Should contain the following:
+ "phy" USB PHY reference clock
+ "core" Protocol engine clock
+ "iface" Interface bus clock
+ "alt_core" Optional: Protocol engine clock for targets with asynchronous
+ reset methodology.
+
+- dr_mode: One of "host", "peripheral" or "otg". Defaults to "otg"
+
+- vdccx-supply: phandle to the regulator for the vdd supply for
+ digital circuit operation.
+- v1p8-supply: phandle to the regulator for the 1.8V supply
+- v3p3-supply: phandle to the regulator for the 3.3V supply
+
+- qcom,phy-type: PHY type can be one of
+ 1 - Chipidea 45nm PHY
+ 2 - Synopsis 28nm PHY
+
+- qcom,otg-control: OTG control (VBUS and ID notifications) can be one of
+ 1 - PHY control
+ 2 - PMIC control
+ 3 - User control (via debugfs)
+
+Optional properties:
+- qcom,phy-init-sequence: PHY configuration sequence. val, reg pairs
+ terminate with -1
+
+Example HSUSB OTG controller device node:
+
+ usb@f9a55000 {
+ compatible = "qcom,hsusb-otg";
+ reg = <0xf9a55000 0x400>;
+ interrupts = <0 134 0>;;
+ dr_mode = "peripheral";
+
+ clocks = <&gcc GCC_XO_CLK>, <&gcc GCC_USB_HS_SYSTEM_CLK>,
+ <&gcc GCC_USB_HS_AHB_CLK>;
+
+ clock-names = "phy", "core", "iface";
+
+ vddcx-supply = <&pm8841_s2_corner>;
+ v1p8-supply = <&pm8941_l6>;
+ v3p3-supply = <&pm8941_l24>;
+
+ qcom,otg-control = <1>;
+ qcom,phy-type = <2>;
+ qcom,phy-init-sequence = <0x01 0x90 0xffffffff>;
+ };
diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
index f34c8a9..1ecea6f 100644
--- a/drivers/usb/phy/phy-msm-usb.c
+++ b/drivers/usb/phy/phy-msm-usb.c
@@ -30,9 +30,11 @@
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/pm_runtime.h>
+#include <linux/of.h>
#include <linux/usb.h>
#include <linux/usb/otg.h>
+#include <linux/usb/of.h>
#include <linux/usb/ulpi.h>
#include <linux/usb/gadget.h>
#include <linux/usb/hcd.h>
@@ -1342,17 +1344,57 @@ static void msm_otg_debugfs_cleanup(void)
debugfs_remove(msm_otg_dbg_root);
}
+struct msm_otg_platform_data *msm_otg_dt_to_pdata(struct platform_device *pdev)
+{
+ struct msm_otg_platform_data *pdata;
+ struct device_node *node = pdev->dev.of_node;
+ int len = 0;
+ u32 val;
+
+ pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata) {
+ dev_err(&pdev->dev, "unable to allocate platform data\n");
+ return NULL;
+ }
+
+ pdata->mode = of_usb_get_dr_mode(node);
+ if (pdata->mode == USB_DR_MODE_UNKNOWN)
+ pdata->mode = USB_DR_MODE_OTG;
+
+ pdata->otg_control = OTG_PHY_CONTROL;
+ if (!of_property_read_u32(node, "qcom,otg-control", &val))
+ pdata->otg_control = val;
+
+ pdata->phy_type = CI_45NM_INTEGRATED_PHY;
+ if (!of_property_read_u32(node, "qcom,phy-type", &val))
+ pdata->phy_type = val;
+
+ if (!of_get_property(node, "qcom,phy-init-sequence", &len) || !len)
+ return pdata;
+
+ pdata->phy_init_seq = devm_kzalloc(&pdev->dev, len, GFP_KERNEL);
+ if (!pdata->phy_init_seq)
+ return pdata;
+
+ of_property_read_u32_array(node, "qcom,phy-init-sequence",
+ pdata->phy_init_seq,
+ len / sizeof(*pdata->phy_init_seq));
+ return pdata;
+}
+
static int __init msm_otg_probe(struct platform_device *pdev)
{
int ret = 0;
+ struct msm_otg_platform_data *pdata;
struct resource *res;
struct msm_otg *motg;
struct usb_phy *phy;
- dev_info(&pdev->dev, "msm_otg probe\n");
- if (!dev_get_platdata(&pdev->dev)) {
- dev_err(&pdev->dev, "No platform data given. Bailing out\n");
- return -ENODEV;
+ pdata = dev_get_platdata(&pdev->dev);
+ if (!pdata) {
+ pdata = msm_otg_dt_to_pdata(pdev);
+ if (!pdata)
+ return -ENOMEM;
}
motg = devm_kzalloc(&pdev->dev, sizeof(struct msm_otg), GFP_KERNEL);
@@ -1368,7 +1410,7 @@ static int __init msm_otg_probe(struct platform_device *pdev)
return -ENOMEM;
}
- motg->pdata = dev_get_platdata(&pdev->dev);
+ motg->pdata = pdata;
phy = &motg->phy;
phy->dev = &pdev->dev;
@@ -1643,6 +1685,12 @@ static const struct dev_pm_ops msm_otg_dev_pm_ops = {
};
#endif
+static struct of_device_id msm_otg_dt_match[] = {
+ { .compatible = "qcom,hsusb-otg", },
+ {}
+};
+MODULE_DEVICE_TABLE(of, msm_otg_dt_match);
+
static struct platform_driver msm_otg_driver = {
.probe = msm_otg_probe,
.remove = msm_otg_remove,
@@ -1652,6 +1700,7 @@ static struct platform_driver msm_otg_driver = {
#ifdef CONFIG_PM
.pm = &msm_otg_dev_pm_ops,
#endif
+ .of_match_table = msm_otg_dt_match,
},
};
--
1.7.9.5
From: "Ivan T. Ivanov" <[email protected]>
IRQ with number 0 is valid case, so check for negative
numbers instead.
Signed-off-by: Ivan T. Ivanov <[email protected]>
---
drivers/usb/phy/phy-msm-usb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
index ca2abe6..f34c8a9 100644
--- a/drivers/usb/phy/phy-msm-usb.c
+++ b/drivers/usb/phy/phy-msm-usb.c
@@ -1415,7 +1415,7 @@ static int __init msm_otg_probe(struct platform_device *pdev)
dev_info(&pdev->dev, "OTG regs = %p\n", motg->regs);
motg->irq = platform_get_irq(pdev, 0);
- if (!motg->irq) {
+ if (motg->irq < 0) {
dev_err(&pdev->dev, "platform_get_irq failed\n");
return motg->irq;
}
--
1.7.9.5
From: "Ivan T. Ivanov" <[email protected]>
Prefix did not bring any useful information.
Signed-off-by: Ivan T. Ivanov <[email protected]>
---
drivers/usb/phy/phy-msm-usb.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
index 0bd3ba5..ca2abe6 100644
--- a/drivers/usb/phy/phy-msm-usb.c
+++ b/drivers/usb/phy/phy-msm-usb.c
@@ -1420,19 +1420,19 @@ static int __init msm_otg_probe(struct platform_device *pdev)
return motg->irq;
}
- motg->vddcx = devm_regulator_get(motg->phy.dev, "HSUSB_VDDCX");
+ motg->vddcx = devm_regulator_get(motg->phy.dev, "vddcx");
if (IS_ERR(motg->vddcx)) {
dev_err(motg->phy.dev, "unable to get hsusb vddcx\n");
return PTR_ERR(motg->vddcx);
}
- motg->v3p3 = devm_regulator_get(motg->phy.dev, "HSUSB_3p3");
+ motg->v3p3 = devm_regulator_get(motg->phy.dev, "v3p3");
if (IS_ERR(motg->v3p3)) {
dev_err(motg->phy.dev, "unable to get hsusb 3p3\n");
return PTR_ERR(motg->v3p3);
}
- motg->v1p8 = devm_regulator_get(motg->phy.dev, "HSUSB_1p8");
+ motg->v1p8 = devm_regulator_get(motg->phy.dev, "v1p8");
if (IS_ERR(motg->v1p8)) {
dev_err(motg->phy.dev, "unable to get hsusb 1p8\n");
return PTR_ERR(motg->v1p8);
--
1.7.9.5
From: "Ivan T. Ivanov" <[email protected]>
Replace the USB specific clock names in driver
with the more standard 'core' and 'iface' ... names.
Cc: David Brown <[email protected]>
Cc: Stephen Boyd <[email protected]>
Signed-off-by: Ivan T. Ivanov <[email protected]>
---
arch/arm/mach-msm/devices-msm7x00.c | 4 +-
arch/arm/mach-msm/devices-msm7x30.c | 8 ++--
arch/arm/mach-msm/devices-qsd8x50.c | 6 +--
drivers/usb/phy/phy-msm-usb.c | 79 +++++++++++++++++++----------------
include/linux/usb/msm_hsusb.h | 14 +++----
5 files changed, 58 insertions(+), 53 deletions(-)
diff --git a/arch/arm/mach-msm/devices-msm7x00.c b/arch/arm/mach-msm/devices-msm7x00.c
index d83404d..e7274e1 100644
--- a/arch/arm/mach-msm/devices-msm7x00.c
+++ b/arch/arm/mach-msm/devices-msm7x00.c
@@ -461,8 +461,8 @@ static struct clk_pcom_desc msm_clocks_7x01a[] = {
CLK_PCOM("core", UART3_CLK, "msm_serial.2", OFF),
CLK_PCOM("uart1dm_clk", UART1DM_CLK, NULL, OFF),
CLK_PCOM("uart2dm_clk", UART2DM_CLK, NULL, 0),
- CLK_PCOM("usb_hs_clk", USB_HS_CLK, "msm_hsusb", OFF),
- CLK_PCOM("usb_hs_pclk", USB_HS_P_CLK, "msm_hsusb", OFF),
+ CLK_PCOM("core", USB_HS_CLK, "msm_hsusb", OFF),
+ CLK_PCOM("iface", USB_HS_P_CLK, "msm_hsusb", OFF),
CLK_PCOM("usb_otg_clk", USB_OTG_CLK, NULL, 0),
CLK_PCOM("vdc_clk", VDC_CLK, NULL, OFF ),
CLK_PCOM("vfe_clk", VFE_CLK, NULL, OFF),
diff --git a/arch/arm/mach-msm/devices-msm7x30.c b/arch/arm/mach-msm/devices-msm7x30.c
index c15ea8a..b7d00fa 100644
--- a/arch/arm/mach-msm/devices-msm7x30.c
+++ b/arch/arm/mach-msm/devices-msm7x30.c
@@ -212,10 +212,10 @@ static struct clk_pcom_desc msm_clocks_7x30[] = {
CLK_PCOM("tv_dac_clk", TV_DAC_CLK, NULL, 0),
CLK_PCOM("tv_enc_clk", TV_ENC_CLK, NULL, 0),
CLK_PCOM("core", UART2_CLK, "msm_serial.1", 0),
- CLK_PCOM("usb_phy_clk", USB_PHY_CLK, NULL, 0),
- CLK_PCOM("usb_hs_clk", USB_HS_CLK, NULL, OFF),
- CLK_PCOM("usb_hs_pclk", USB_HS_P_CLK, NULL, OFF),
- CLK_PCOM("usb_hs_core_clk", USB_HS_CORE_CLK, NULL, OFF),
+ CLK_PCOM("phy", USB_PHY_CLK, NULL, 0),
+ CLK_PCOM("core", USB_HS_CLK, NULL, OFF),
+ CLK_PCOM("iface", USB_HS_P_CLK, NULL, OFF),
+ CLK_PCOM("alt_core", USB_HS_CORE_CLK, NULL, OFF),
CLK_PCOM("usb_hs2_clk", USB_HS2_CLK, NULL, OFF),
CLK_PCOM("usb_hs2_pclk", USB_HS2_P_CLK, NULL, OFF),
CLK_PCOM("usb_hs2_core_clk", USB_HS2_CORE_CLK, NULL, OFF),
diff --git a/arch/arm/mach-msm/devices-qsd8x50.c b/arch/arm/mach-msm/devices-qsd8x50.c
index 9e1e9ce..c9614b8 100644
--- a/arch/arm/mach-msm/devices-qsd8x50.c
+++ b/arch/arm/mach-msm/devices-qsd8x50.c
@@ -363,8 +363,8 @@ static struct clk_pcom_desc msm_clocks_8x50[] = {
CLK_PCOM("core", UART3_CLK, "msm_serial.2", OFF),
CLK_PCOM("uartdm_clk", UART1DM_CLK, NULL, OFF),
CLK_PCOM("uartdm_clk", UART2DM_CLK, NULL, 0),
- CLK_PCOM("usb_hs_clk", USB_HS_CLK, NULL, OFF),
- CLK_PCOM("usb_hs_pclk", USB_HS_P_CLK, NULL, OFF),
+ CLK_PCOM("core", USB_HS_CLK, NULL, OFF),
+ CLK_PCOM("iface", USB_HS_P_CLK, NULL, OFF),
CLK_PCOM("usb_otg_clk", USB_OTG_CLK, NULL, 0),
CLK_PCOM("vdc_clk", VDC_CLK, NULL, OFF | CLK_MIN),
CLK_PCOM("vfe_clk", VFE_CLK, NULL, OFF),
@@ -374,7 +374,7 @@ static struct clk_pcom_desc msm_clocks_8x50[] = {
CLK_PCOM("usb_hs2_pclk", USB_HS2_P_CLK, NULL, OFF),
CLK_PCOM("usb_hs3_clk", USB_HS3_CLK, NULL, OFF),
CLK_PCOM("usb_hs3_pclk", USB_HS3_P_CLK, NULL, OFF),
- CLK_PCOM("usb_phy_clk", USB_PHY_CLK, NULL, 0),
+ CLK_PCOM("phy", USB_PHY_CLK, NULL, 0),
};
static struct pcom_clk_pdata msm_clock_8x50_pdata = {
diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
index c1020d9..0bd3ba5 100644
--- a/drivers/usb/phy/phy-msm-usb.c
+++ b/drivers/usb/phy/phy-msm-usb.c
@@ -262,7 +262,7 @@ static int msm_otg_link_clk_reset(struct msm_otg *motg, bool assert)
if (!motg->pdata->link_clk_reset)
return ret;
- ret = motg->pdata->link_clk_reset(motg->clk, assert);
+ ret = motg->pdata->link_clk_reset(motg->core_clk, assert);
if (ret)
dev_err(motg->phy.dev, "usb link clk reset failed\n");
@@ -276,7 +276,7 @@ static int msm_otg_phy_clk_reset(struct msm_otg *motg)
if (!motg->pdata->phy_clk_reset)
return ret;
- ret = motg->pdata->phy_clk_reset(motg->phy_reset_clk);
+ ret = motg->pdata->phy_clk_reset(motg->phy_clk);
if (ret)
dev_err(motg->phy.dev, "usb phy clk assert failed\n");
@@ -459,10 +459,10 @@ static int msm_otg_suspend(struct msm_otg *motg)
motg->pdata->otg_control == OTG_PMIC_CONTROL)
writel(readl(USB_PHY_CTRL) | PHY_RETEN, USB_PHY_CTRL);
- clk_disable_unprepare(motg->pclk);
- clk_disable_unprepare(motg->clk);
- if (!IS_ERR(motg->core_clk))
- clk_disable_unprepare(motg->core_clk);
+ clk_disable_unprepare(motg->iface_clk);
+ clk_disable_unprepare(motg->core_clk);
+ if (!IS_ERR(motg->alt_core_clk))
+ clk_disable_unprepare(motg->alt_core_clk);
if (motg->pdata->phy_type == SNPS_28NM_INTEGRATED_PHY &&
motg->pdata->otg_control == OTG_PMIC_CONTROL) {
@@ -493,10 +493,10 @@ static int msm_otg_resume(struct msm_otg *motg)
if (!atomic_read(&motg->in_lpm))
return 0;
- clk_prepare_enable(motg->pclk);
- clk_prepare_enable(motg->clk);
- if (!IS_ERR(motg->core_clk))
- clk_prepare_enable(motg->core_clk);
+ clk_prepare_enable(motg->iface_clk);
+ clk_prepare_enable(motg->core_clk);
+ if (!IS_ERR(motg->alt_core_clk))
+ clk_prepare_enable(motg->alt_core_clk);
if (motg->pdata->phy_type == SNPS_28NM_INTEGRATED_PHY &&
motg->pdata->otg_control == OTG_PMIC_CONTROL) {
@@ -1372,16 +1372,16 @@ static int __init msm_otg_probe(struct platform_device *pdev)
phy = &motg->phy;
phy->dev = &pdev->dev;
- motg->phy_reset_clk = devm_clk_get(&pdev->dev, "usb_phy_clk");
- if (IS_ERR(motg->phy_reset_clk)) {
- dev_err(&pdev->dev, "failed to get usb_phy_clk\n");
- return PTR_ERR(motg->phy_reset_clk);
+ motg->phy_clk = devm_clk_get(&pdev->dev, "phy");
+ if (IS_ERR(motg->phy_clk)) {
+ dev_err(&pdev->dev, "failed to get phy clock\n");
+ return PTR_ERR(motg->phy_clk);
}
- motg->clk = devm_clk_get(&pdev->dev, "usb_hs_clk");
- if (IS_ERR(motg->clk)) {
- dev_err(&pdev->dev, "failed to get usb_hs_clk\n");
- return PTR_ERR(motg->clk);
+ motg->core_clk = devm_clk_get(&pdev->dev, "core");
+ if (IS_ERR(motg->core_clk)) {
+ dev_err(&pdev->dev, "failed to get core clock\n");
+ return PTR_ERR(motg->core_clk);
}
/*
@@ -1390,18 +1390,22 @@ static int __init msm_otg_probe(struct platform_device *pdev)
* operation and USB core cannot tolerate frequency changes on
* CORE CLK.
*/
- motg->pclk = devm_clk_get(&pdev->dev, "usb_hs_pclk");
- if (IS_ERR(motg->pclk)) {
- dev_err(&pdev->dev, "failed to get usb_hs_pclk\n");
- return PTR_ERR(motg->pclk);
+
+ motg->iface_clk = devm_clk_get(&pdev->dev, "iface");
+ if (IS_ERR(motg->iface_clk)) {
+ dev_err(&pdev->dev, "failed to get iface clock\n");
+ return PTR_ERR(motg->iface_clk);
}
/*
- * USB core clock is not present on all MSM chips. This
+ * USB alt_core clock is not present on all MSM chips. This
* clock is introduced to remove the dependency on AXI
* bus frequency.
+ *
+ * Targets on which link uses asynchronous reset methodology,
+ * free running clock is not required during the reset.
*/
- motg->core_clk = devm_clk_get(&pdev->dev, "usb_hs_core_clk");
+ motg->alt_core_clk = devm_clk_get(&pdev->dev, "alt_core");
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
motg->regs = devm_ioremap_resource(&pdev->dev, res);
@@ -1434,13 +1438,13 @@ static int __init msm_otg_probe(struct platform_device *pdev)
return PTR_ERR(motg->v1p8);
}
- clk_set_rate(motg->clk, 60000000);
+ clk_set_rate(motg->core_clk, 60000000);
- clk_prepare_enable(motg->clk);
- clk_prepare_enable(motg->pclk);
+ clk_prepare_enable(motg->core_clk);
+ clk_prepare_enable(motg->iface_clk);
- if (!IS_ERR(motg->core_clk))
- clk_prepare_enable(motg->core_clk);
+ if (!IS_ERR(motg->alt_core_clk))
+ clk_prepare_enable(motg->alt_core_clk);
ret = msm_hsusb_init_vddcx(motg, 1);
if (ret) {
@@ -1506,10 +1510,10 @@ disable_ldo:
disable_vddcx:
msm_hsusb_init_vddcx(motg, 0);
disable_clks:
- clk_disable_unprepare(motg->pclk);
- clk_disable_unprepare(motg->clk);
- if (!IS_ERR(motg->core_clk))
- clk_disable_unprepare(motg->core_clk);
+ clk_disable_unprepare(motg->iface_clk);
+ clk_disable_unprepare(motg->core_clk);
+ if (!IS_ERR(motg->alt_core_clk))
+ clk_disable_unprepare(motg->alt_core_clk);
return ret;
}
@@ -1550,10 +1554,11 @@ static int msm_otg_remove(struct platform_device *pdev)
if (cnt >= PHY_SUSPEND_TIMEOUT_USEC)
dev_err(phy->dev, "Unable to suspend PHY\n");
- clk_disable_unprepare(motg->pclk);
- clk_disable_unprepare(motg->clk);
- if (!IS_ERR(motg->core_clk))
- clk_disable_unprepare(motg->core_clk);
+ clk_disable_unprepare(motg->iface_clk);
+ clk_disable_unprepare(motg->core_clk);
+ if (!IS_ERR(motg->alt_core_clk))
+ clk_disable_unprepare(motg->alt_core_clk);
+
msm_hsusb_ldo_init(motg, 0);
pm_runtime_set_suspended(&pdev->dev);
diff --git a/include/linux/usb/msm_hsusb.h b/include/linux/usb/msm_hsusb.h
index 262ed80..f1b98f2 100644
--- a/include/linux/usb/msm_hsusb.h
+++ b/include/linux/usb/msm_hsusb.h
@@ -124,10 +124,10 @@ struct msm_otg_platform_data {
* @otg: USB OTG Transceiver structure.
* @pdata: otg device platform data.
* @irq: IRQ number assigned for HSUSB controller.
- * @clk: clock struct of usb_hs_clk.
- * @pclk: clock struct of usb_hs_pclk.
- * @phy_reset_clk: clock struct of usb_phy_clk.
- * @core_clk: clock struct of usb_hs_core_clk.
+ * @core_clk: reference to core clock struct.
+ * @iface_clk: reference to interface clock struct.
+ * @phy_clk: reference to PHY clock struct.
+ * @alt_core_clk: reference to alternative clock struct
* @regs: ioremapped register base address.
* @inputs: OTG state machine inputs(Id, SessValid etc).
* @sm_work: OTG state machine work.
@@ -144,10 +144,10 @@ struct msm_otg {
struct usb_phy phy;
struct msm_otg_platform_data *pdata;
int irq;
- struct clk *clk;
- struct clk *pclk;
- struct clk *phy_reset_clk;
struct clk *core_clk;
+ struct clk *iface_clk;
+ struct clk *phy_clk;
+ struct clk *alt_core_clk;
void __iomem *regs;
#define ID 0
#define B_SESS_VLD 1
--
1.7.9.5
From: "Ivan T. Ivanov" <[email protected]>
There are no references to 'pclk_src_name' in plaform code,
so it is unused.
Signed-off-by: Ivan T. Ivanov <[email protected]>
---
drivers/usb/phy/phy-msm-usb.c | 26 +-------------------------
include/linux/usb/msm_hsusb.h | 5 -----
2 files changed, 1 insertion(+), 30 deletions(-)
diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
index 4a23cfa..c1020d9 100644
--- a/drivers/usb/phy/phy-msm-usb.c
+++ b/drivers/usb/phy/phy-msm-usb.c
@@ -464,9 +464,6 @@ static int msm_otg_suspend(struct msm_otg *motg)
if (!IS_ERR(motg->core_clk))
clk_disable_unprepare(motg->core_clk);
- if (!IS_ERR(motg->pclk_src))
- clk_disable_unprepare(motg->pclk_src);
-
if (motg->pdata->phy_type == SNPS_28NM_INTEGRATED_PHY &&
motg->pdata->otg_control == OTG_PMIC_CONTROL) {
msm_hsusb_ldo_set_mode(motg, 0);
@@ -496,9 +493,6 @@ static int msm_otg_resume(struct msm_otg *motg)
if (!atomic_read(&motg->in_lpm))
return 0;
- if (!IS_ERR(motg->pclk_src))
- clk_prepare_enable(motg->pclk_src);
-
clk_prepare_enable(motg->pclk);
clk_prepare_enable(motg->clk);
if (!IS_ERR(motg->core_clk))
@@ -1394,17 +1388,8 @@ static int __init msm_otg_probe(struct platform_device *pdev)
* If USB Core is running its protocol engine based on CORE CLK,
* CORE CLK must be running at >55Mhz for correct HSUSB
* operation and USB core cannot tolerate frequency changes on
- * CORE CLK. For such USB cores, vote for maximum clk frequency
- * on pclk source
+ * CORE CLK.
*/
- motg->pclk_src = ERR_PTR(-ENOENT);
- if (motg->pdata->pclk_src_name) {
- motg->pclk_src = devm_clk_get(&pdev->dev,
- motg->pdata->pclk_src_name);
- if (IS_ERR(motg->pclk_src))
- return PTR_ERR(motg->pclk_src);
- }
-
motg->pclk = devm_clk_get(&pdev->dev, "usb_hs_pclk");
if (IS_ERR(motg->pclk)) {
dev_err(&pdev->dev, "failed to get usb_hs_pclk\n");
@@ -1450,10 +1435,6 @@ static int __init msm_otg_probe(struct platform_device *pdev)
}
clk_set_rate(motg->clk, 60000000);
- if (!IS_ERR(motg->pclk_src)) {
- clk_set_rate(motg->pclk_src, INT_MAX);
- clk_prepare_enable(motg->pclk_src);
- }
clk_prepare_enable(motg->clk);
clk_prepare_enable(motg->pclk);
@@ -1529,8 +1510,6 @@ disable_clks:
clk_disable_unprepare(motg->clk);
if (!IS_ERR(motg->core_clk))
clk_disable_unprepare(motg->core_clk);
- if (!IS_ERR(motg->pclk_src))
- clk_disable_unprepare(motg->pclk_src);
return ret;
}
@@ -1575,9 +1554,6 @@ static int msm_otg_remove(struct platform_device *pdev)
clk_disable_unprepare(motg->clk);
if (!IS_ERR(motg->core_clk))
clk_disable_unprepare(motg->core_clk);
- if (!IS_ERR(motg->pclk_src))
- clk_disable_unprepare(motg->pclk_src);
-
msm_hsusb_ldo_init(motg, 0);
pm_runtime_set_suspended(&pdev->dev);
diff --git a/include/linux/usb/msm_hsusb.h b/include/linux/usb/msm_hsusb.h
index 72c5830..262ed80 100644
--- a/include/linux/usb/msm_hsusb.h
+++ b/include/linux/usb/msm_hsusb.h
@@ -106,8 +106,6 @@ enum usb_chg_type {
* @power_budget: VBUS power budget in mA (0 will be treated as 500mA).
* @mode: Supported mode (OTG/peripheral/host).
* @otg_control: OTG switch controlled by user/Id pin
- * @pclk_src_name: pclk is derived from ebi1_usb_clk in case of 7x27 and 8k
- * dfab_usb_hs_clk in case of 8660 and 8960.
*/
struct msm_otg_platform_data {
int *phy_init_seq;
@@ -117,7 +115,6 @@ struct msm_otg_platform_data {
enum otg_control_type otg_control;
enum msm_usb_phy_type phy_type;
void (*setup_gpio)(enum usb_otg_state state);
- char *pclk_src_name;
int (*link_clk_reset)(struct clk *link_clk, bool assert);
int (*phy_clk_reset)(struct clk *phy_clk);
};
@@ -129,7 +126,6 @@ struct msm_otg_platform_data {
* @irq: IRQ number assigned for HSUSB controller.
* @clk: clock struct of usb_hs_clk.
* @pclk: clock struct of usb_hs_pclk.
- * @pclk_src: pclk source for voting.
* @phy_reset_clk: clock struct of usb_phy_clk.
* @core_clk: clock struct of usb_hs_core_clk.
* @regs: ioremapped register base address.
@@ -150,7 +146,6 @@ struct msm_otg {
int irq;
struct clk *clk;
struct clk *pclk;
- struct clk *pclk_src;
struct clk *phy_reset_clk;
struct clk *core_clk;
void __iomem *regs;
--
1.7.9.5
From: "Ivan T. Ivanov" <[email protected]>
USB DT bindings states: "...In case this attribute isn't
passed via DT, USB DRD controllers should default to OTG...",
so remove redundand field.
Signed-off-by: Ivan T. Ivanov <[email protected]>
---
drivers/usb/phy/phy-msm-usb.c | 7 -------
include/linux/usb/msm_hsusb.h | 3 ---
2 files changed, 10 deletions(-)
diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
index 2aca042..4a23cfa 100644
--- a/drivers/usb/phy/phy-msm-usb.c
+++ b/drivers/usb/phy/phy-msm-usb.c
@@ -1067,15 +1067,8 @@ static void msm_otg_init_sm(struct msm_otg *motg)
else
clear_bit(B_SESS_VLD, &motg->inputs);
} else if (pdata->otg_control == OTG_USER_CONTROL) {
- if (pdata->default_mode == USB_DR_MODE_PERIPHERAL) {
- set_bit(ID, &motg->inputs);
- set_bit(B_SESS_VLD, &motg->inputs);
- } else if (pdata->default_mode == USB_DR_MODE_HOST) {
- clear_bit(ID, &motg->inputs);
- } else {
set_bit(ID, &motg->inputs);
clear_bit(B_SESS_VLD, &motg->inputs);
- }
}
break;
case USB_DR_MODE_HOST:
diff --git a/include/linux/usb/msm_hsusb.h b/include/linux/usb/msm_hsusb.h
index f9d512e..72c5830 100644
--- a/include/linux/usb/msm_hsusb.h
+++ b/include/linux/usb/msm_hsusb.h
@@ -106,8 +106,6 @@ enum usb_chg_type {
* @power_budget: VBUS power budget in mA (0 will be treated as 500mA).
* @mode: Supported mode (OTG/peripheral/host).
* @otg_control: OTG switch controlled by user/Id pin
- * @default_mode: Default operational mode. Applicable only if
- * OTG switch is controller by user.
* @pclk_src_name: pclk is derived from ebi1_usb_clk in case of 7x27 and 8k
* dfab_usb_hs_clk in case of 8660 and 8960.
*/
@@ -117,7 +115,6 @@ struct msm_otg_platform_data {
unsigned power_budget;
enum usb_dr_mode mode;
enum otg_control_type otg_control;
- enum usb_dr_mode default_mode;
enum msm_usb_phy_type phy_type;
void (*setup_gpio)(enum usb_otg_state state);
char *pclk_src_name;
--
1.7.9.5
From: "Ivan T. Ivanov" <[email protected]>
Signed-off-by: Ivan T. Ivanov <[email protected]>
---
arch/arm/mach-msm/board-msm7x30.c | 2 +-
arch/arm/mach-msm/board-qsd8x50.c | 2 +-
drivers/usb/phy/phy-msm-usb.c | 40 ++++++++++++++++++-------------------
include/linux/usb/msm_hsusb.h | 19 ++----------------
4 files changed, 24 insertions(+), 39 deletions(-)
diff --git a/arch/arm/mach-msm/board-msm7x30.c b/arch/arm/mach-msm/board-msm7x30.c
index 46de789..0c4c200 100644
--- a/arch/arm/mach-msm/board-msm7x30.c
+++ b/arch/arm/mach-msm/board-msm7x30.c
@@ -95,7 +95,7 @@ static int hsusb_phy_clk_reset(struct clk *phy_clk)
static struct msm_otg_platform_data msm_otg_pdata = {
.phy_init_seq = hsusb_phy_init_seq,
- .mode = USB_PERIPHERAL,
+ .mode = USB_DR_MODE_PERIPHERAL,
.otg_control = OTG_PHY_CONTROL,
.link_clk_reset = hsusb_link_clk_reset,
.phy_clk_reset = hsusb_phy_clk_reset,
diff --git a/arch/arm/mach-msm/board-qsd8x50.c b/arch/arm/mach-msm/board-qsd8x50.c
index 9169ec3..4c74861 100644
--- a/arch/arm/mach-msm/board-qsd8x50.c
+++ b/arch/arm/mach-msm/board-qsd8x50.c
@@ -116,7 +116,7 @@ static int hsusb_phy_clk_reset(struct clk *phy_clk)
static struct msm_otg_platform_data msm_otg_pdata = {
.phy_init_seq = hsusb_phy_init_seq,
- .mode = USB_PERIPHERAL,
+ .mode = USB_DR_MODE_PERIPHERAL,
.otg_control = OTG_PHY_CONTROL,
.link_clk_reset = hsusb_link_clk_reset,
.phy_clk_reset = hsusb_phy_clk_reset,
diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
index 46800c0..2aca042 100644
--- a/drivers/usb/phy/phy-msm-usb.c
+++ b/drivers/usb/phy/phy-msm-usb.c
@@ -372,10 +372,10 @@ static int msm_otg_reset(struct usb_phy *phy)
if (pdata->otg_control == OTG_PHY_CONTROL) {
val = readl(USB_OTGSC);
- if (pdata->mode == USB_OTG) {
+ if (pdata->mode == USB_DR_MODE_OTG) {
ulpi_val = ULPI_INT_IDGRD | ULPI_INT_SESS_VALID;
val |= OTGSC_IDIE | OTGSC_BSVIE;
- } else if (pdata->mode == USB_PERIPHERAL) {
+ } else if (pdata->mode == USB_DR_MODE_PERIPHERAL) {
ulpi_val = ULPI_INT_SESS_VALID;
val |= OTGSC_BSVIE;
}
@@ -636,7 +636,7 @@ static int msm_otg_set_host(struct usb_otg *otg, struct usb_bus *host)
* Fail host registration if this board can support
* only peripheral configuration.
*/
- if (motg->pdata->mode == USB_PERIPHERAL) {
+ if (motg->pdata->mode == USB_DR_MODE_PERIPHERAL) {
dev_info(otg->phy->dev, "Host mode is not supported\n");
return -ENODEV;
}
@@ -665,7 +665,7 @@ static int msm_otg_set_host(struct usb_otg *otg, struct usb_bus *host)
* Kick the state machine work, if peripheral is not supported
* or peripheral is already registered with us.
*/
- if (motg->pdata->mode == USB_HOST || otg->gadget) {
+ if (motg->pdata->mode == USB_DR_MODE_HOST || otg->gadget) {
pm_runtime_get_sync(otg->phy->dev);
schedule_work(&motg->sm_work);
}
@@ -709,7 +709,7 @@ static int msm_otg_set_peripheral(struct usb_otg *otg,
* Fail peripheral registration if this board can support
* only host configuration.
*/
- if (motg->pdata->mode == USB_HOST) {
+ if (motg->pdata->mode == USB_DR_MODE_HOST) {
dev_info(otg->phy->dev, "Peripheral mode is not supported\n");
return -ENODEV;
}
@@ -734,7 +734,7 @@ static int msm_otg_set_peripheral(struct usb_otg *otg,
* Kick the state machine work, if host is not supported
* or host is already registered with us.
*/
- if (motg->pdata->mode == USB_PERIPHERAL || otg->host) {
+ if (motg->pdata->mode == USB_DR_MODE_PERIPHERAL || otg->host) {
pm_runtime_get_sync(otg->phy->dev);
schedule_work(&motg->sm_work);
}
@@ -1055,7 +1055,7 @@ static void msm_otg_init_sm(struct msm_otg *motg)
u32 otgsc = readl(USB_OTGSC);
switch (pdata->mode) {
- case USB_OTG:
+ case USB_DR_MODE_OTG:
if (pdata->otg_control == OTG_PHY_CONTROL) {
if (otgsc & OTGSC_ID)
set_bit(ID, &motg->inputs);
@@ -1067,21 +1067,21 @@ static void msm_otg_init_sm(struct msm_otg *motg)
else
clear_bit(B_SESS_VLD, &motg->inputs);
} else if (pdata->otg_control == OTG_USER_CONTROL) {
- if (pdata->default_mode == USB_HOST) {
- clear_bit(ID, &motg->inputs);
- } else if (pdata->default_mode == USB_PERIPHERAL) {
+ if (pdata->default_mode == USB_DR_MODE_PERIPHERAL) {
set_bit(ID, &motg->inputs);
set_bit(B_SESS_VLD, &motg->inputs);
+ } else if (pdata->default_mode == USB_DR_MODE_HOST) {
+ clear_bit(ID, &motg->inputs);
} else {
set_bit(ID, &motg->inputs);
clear_bit(B_SESS_VLD, &motg->inputs);
}
}
break;
- case USB_HOST:
+ case USB_DR_MODE_HOST:
clear_bit(ID, &motg->inputs);
break;
- case USB_PERIPHERAL:
+ case USB_DR_MODE_PERIPHERAL:
set_bit(ID, &motg->inputs);
if (otgsc & OTGSC_BSV)
set_bit(B_SESS_VLD, &motg->inputs);
@@ -1257,7 +1257,7 @@ static ssize_t msm_otg_mode_write(struct file *file, const char __user *ubuf,
char buf[16];
struct usb_otg *otg = motg->phy.otg;
int status = count;
- enum usb_mode_type req_mode;
+ enum usb_dr_mode req_mode;
memset(buf, 0x00, sizeof(buf));
@@ -1267,18 +1267,18 @@ static ssize_t msm_otg_mode_write(struct file *file, const char __user *ubuf,
}
if (!strncmp(buf, "host", 4)) {
- req_mode = USB_HOST;
+ req_mode = USB_DR_MODE_HOST;
} else if (!strncmp(buf, "peripheral", 10)) {
- req_mode = USB_PERIPHERAL;
+ req_mode = USB_DR_MODE_PERIPHERAL;
} else if (!strncmp(buf, "none", 4)) {
- req_mode = USB_NONE;
+ req_mode = USB_DR_MODE_UNKNOWN;
} else {
status = -EINVAL;
goto out;
}
switch (req_mode) {
- case USB_NONE:
+ case USB_DR_MODE_UNKNOWN:
switch (otg->phy->state) {
case OTG_STATE_A_HOST:
case OTG_STATE_B_PERIPHERAL:
@@ -1289,7 +1289,7 @@ static ssize_t msm_otg_mode_write(struct file *file, const char __user *ubuf,
goto out;
}
break;
- case USB_PERIPHERAL:
+ case USB_DR_MODE_PERIPHERAL:
switch (otg->phy->state) {
case OTG_STATE_B_IDLE:
case OTG_STATE_A_HOST:
@@ -1300,7 +1300,7 @@ static ssize_t msm_otg_mode_write(struct file *file, const char __user *ubuf,
goto out;
}
break;
- case USB_HOST:
+ case USB_DR_MODE_HOST:
switch (otg->phy->state) {
case OTG_STATE_B_IDLE:
case OTG_STATE_B_PERIPHERAL:
@@ -1515,7 +1515,7 @@ static int __init msm_otg_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, motg);
device_init_wakeup(&pdev->dev, 1);
- if (motg->pdata->mode == USB_OTG &&
+ if (motg->pdata->mode == USB_DR_MODE_OTG &&
motg->pdata->otg_control == OTG_USER_CONTROL) {
ret = msm_otg_debugfs_init(motg);
if (ret)
diff --git a/include/linux/usb/msm_hsusb.h b/include/linux/usb/msm_hsusb.h
index 8705b01..f9d512e 100644
--- a/include/linux/usb/msm_hsusb.h
+++ b/include/linux/usb/msm_hsusb.h
@@ -23,21 +23,6 @@
#include <linux/clk.h>
/**
- * Supported USB modes
- *
- * USB_PERIPHERAL Only peripheral mode is supported.
- * USB_HOST Only host mode is supported.
- * USB_OTG OTG mode is supported.
- *
- */
-enum usb_mode_type {
- USB_NONE = 0,
- USB_PERIPHERAL,
- USB_HOST,
- USB_OTG,
-};
-
-/**
* OTG control
*
* OTG_NO_CONTROL Id/VBUS notifications not required. Useful in host
@@ -130,9 +115,9 @@ struct msm_otg_platform_data {
int *phy_init_seq;
void (*vbus_power)(bool on);
unsigned power_budget;
- enum usb_mode_type mode;
+ enum usb_dr_mode mode;
enum otg_control_type otg_control;
- enum usb_mode_type default_mode;
+ enum usb_dr_mode default_mode;
enum msm_usb_phy_type phy_type;
void (*setup_gpio)(enum usb_otg_state state);
char *pclk_src_name;
--
1.7.9.5
From: "Ivan T. Ivanov" <[email protected]>
This fixes checkpatch.pl warnings.
Signed-off-by: Ivan T. Ivanov <[email protected]>
---
drivers/usb/phy/phy-msm-usb.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
index 28cab03..46800c0 100644
--- a/drivers/usb/phy/phy-msm-usb.c
+++ b/drivers/usb/phy/phy-msm-usb.c
@@ -1231,13 +1231,13 @@ static int msm_otg_mode_show(struct seq_file *s, void *unused)
switch (otg->phy->state) {
case OTG_STATE_A_HOST:
- seq_printf(s, "host\n");
+ seq_puts(s, "host\n");
break;
case OTG_STATE_B_PERIPHERAL:
- seq_printf(s, "peripheral\n");
+ seq_puts(s, "peripheral\n");
break;
default:
- seq_printf(s, "none\n");
+ seq_puts(s, "none\n");
break;
}
--
1.7.9.5
From: "Ivan T. Ivanov" <[email protected]>
This fixes checkpatch.pl warnings.
Signed-off-by: Ivan T. Ivanov <[email protected]>
---
drivers/usb/phy/phy-msm-usb.c | 33 +++++++++++----------------------
1 file changed, 11 insertions(+), 22 deletions(-)
diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
index b77441b..28cab03 100644
--- a/drivers/usb/phy/phy-msm-usb.c
+++ b/drivers/usb/phy/phy-msm-usb.c
@@ -67,8 +67,7 @@ static int msm_hsusb_init_vddcx(struct msm_otg *motg, int init)
USB_PHY_VDD_DIG_VOL_MIN,
USB_PHY_VDD_DIG_VOL_MAX);
if (ret) {
- dev_err(motg->phy.dev, "unable to set the voltage "
- "for hsusb vddcx\n");
+ dev_err(motg->phy.dev, "Cannot set vddcx voltage\n");
return ret;
}
@@ -79,8 +78,7 @@ static int msm_hsusb_init_vddcx(struct msm_otg *motg, int init)
ret = regulator_set_voltage(motg->vddcx, 0,
USB_PHY_VDD_DIG_VOL_MAX);
if (ret)
- dev_err(motg->phy.dev, "unable to set the voltage "
- "for hsusb vddcx\n");
+ dev_err(motg->phy.dev, "Cannot set vddcx voltage\n");
ret = regulator_disable(motg->vddcx);
if (ret)
dev_err(motg->phy.dev, "unable to disable hsusb vddcx\n");
@@ -97,8 +95,7 @@ static int msm_hsusb_ldo_init(struct msm_otg *motg, int init)
rc = regulator_set_voltage(motg->v3p3, USB_PHY_3P3_VOL_MIN,
USB_PHY_3P3_VOL_MAX);
if (rc) {
- dev_err(motg->phy.dev, "unable to set voltage level "
- "for hsusb 3p3\n");
+ dev_err(motg->phy.dev, "Cannot set v3p3 voltage\n");
goto exit;
}
rc = regulator_enable(motg->v3p3);
@@ -109,8 +106,7 @@ static int msm_hsusb_ldo_init(struct msm_otg *motg, int init)
rc = regulator_set_voltage(motg->v1p8, USB_PHY_1P8_VOL_MIN,
USB_PHY_1P8_VOL_MAX);
if (rc) {
- dev_err(motg->phy.dev, "unable to set voltage level "
- "for hsusb 1p8\n");
+ dev_err(motg->phy.dev, "Cannot set v1p8 voltage\n");
goto disable_3p3;
}
rc = regulator_enable(motg->v1p8);
@@ -144,8 +140,7 @@ static int msm_hsusb_config_vddcx(struct msm_otg *motg, int high)
ret = regulator_set_voltage(motg->vddcx, min_vol, max_vol);
if (ret) {
- pr_err("%s: unable to set the voltage for regulator "
- "HSUSB_VDDCX\n", __func__);
+ dev_err(motg->phy.dev, "Cannot set vddcx voltage\n");
return ret;
}
@@ -163,15 +158,13 @@ static int msm_hsusb_ldo_set_mode(struct msm_otg *motg, int on)
ret = regulator_set_optimum_mode(motg->v1p8,
USB_PHY_1P8_HPM_LOAD);
if (ret < 0) {
- pr_err("%s: Unable to set HPM of the regulator "
- "HSUSB_1p8\n", __func__);
+ pr_err("Could not set HPM for v1p8\n");
return ret;
}
ret = regulator_set_optimum_mode(motg->v3p3,
USB_PHY_3P3_HPM_LOAD);
if (ret < 0) {
- pr_err("%s: Unable to set HPM of the regulator "
- "HSUSB_3p3\n", __func__);
+ pr_err("Could not set HPM for v3p3\n");
regulator_set_optimum_mode(motg->v1p8,
USB_PHY_1P8_LPM_LOAD);
return ret;
@@ -180,13 +173,11 @@ static int msm_hsusb_ldo_set_mode(struct msm_otg *motg, int on)
ret = regulator_set_optimum_mode(motg->v1p8,
USB_PHY_1P8_LPM_LOAD);
if (ret < 0)
- pr_err("%s: Unable to set LPM of the regulator "
- "HSUSB_1p8\n", __func__);
+ pr_err("Could not set LPM for v1p8\n");
ret = regulator_set_optimum_mode(motg->v3p3,
USB_PHY_3P3_LPM_LOAD);
if (ret < 0)
- pr_err("%s: Unable to set LPM of the regulator "
- "HSUSB_3p3\n", __func__);
+ pr_err("Could not set LPM for v3p3\n");
}
pr_debug("reg (%s)\n", on ? "HPM" : "LPM");
@@ -546,8 +537,7 @@ static int msm_otg_resume(struct msm_otg *motg)
* PHY. USB state can not be restored. Re-insertion
* of USB cable is the only way to get USB working.
*/
- dev_err(phy->dev, "Unable to resume USB."
- "Re-plugin the cable\n");
+ dev_err(phy->dev, "Unable to resume USB. Re-plugin the cable\n");
msm_otg_reset(phy);
}
@@ -1529,8 +1519,7 @@ static int __init msm_otg_probe(struct platform_device *pdev)
motg->pdata->otg_control == OTG_USER_CONTROL) {
ret = msm_otg_debugfs_init(motg);
if (ret)
- dev_dbg(&pdev->dev, "mode debugfs file is"
- "not available\n");
+ dev_dbg(&pdev->dev, "Can not create mode change file\n");
}
pm_runtime_set_active(&pdev->dev);
--
1.7.9.5
From: "Ivan T. Ivanov" <[email protected]>
Move memory, regulators, clocks and irq allocation to
devm_* variants. Properly check for valid clk handles.
Signed-off-by: Ivan T. Ivanov <[email protected]>
---
drivers/usb/phy/phy-msm-usb.c | 192 ++++++++++++++++-------------------------
1 file changed, 74 insertions(+), 118 deletions(-)
diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
index ab39ecb..136f063 100644
--- a/drivers/usb/phy/phy-msm-usb.c
+++ b/drivers/usb/phy/phy-msm-usb.c
@@ -63,27 +63,18 @@ static int msm_hsusb_init_vddcx(struct msm_otg *motg, int init)
int ret = 0;
if (init) {
- motg->vddcx = regulator_get(motg->phy.dev, "HSUSB_VDDCX");
- if (IS_ERR(motg->vddcx)) {
- dev_err(motg->phy.dev, "unable to get hsusb vddcx\n");
- return PTR_ERR(motg->vddcx);
- }
-
ret = regulator_set_voltage(motg->vddcx,
USB_PHY_VDD_DIG_VOL_MIN,
USB_PHY_VDD_DIG_VOL_MAX);
if (ret) {
dev_err(motg->phy.dev, "unable to set the voltage "
"for hsusb vddcx\n");
- regulator_put(motg->vddcx);
return ret;
}
ret = regulator_enable(motg->vddcx);
- if (ret) {
+ if (ret)
dev_err(motg->phy.dev, "unable to enable hsusb vddcx\n");
- regulator_put(motg->vddcx);
- }
} else {
ret = regulator_set_voltage(motg->vddcx, 0,
USB_PHY_VDD_DIG_VOL_MAX);
@@ -93,8 +84,6 @@ static int msm_hsusb_init_vddcx(struct msm_otg *motg, int init)
ret = regulator_disable(motg->vddcx);
if (ret)
dev_err(motg->phy.dev, "unable to disable hsusb vddcx\n");
-
- regulator_put(motg->vddcx);
}
return ret;
@@ -105,53 +94,38 @@ static int msm_hsusb_ldo_init(struct msm_otg *motg, int init)
int rc = 0;
if (init) {
- motg->v3p3 = regulator_get(motg->phy.dev, "HSUSB_3p3");
- if (IS_ERR(motg->v3p3)) {
- dev_err(motg->phy.dev, "unable to get hsusb 3p3\n");
- return PTR_ERR(motg->v3p3);
- }
-
rc = regulator_set_voltage(motg->v3p3, USB_PHY_3P3_VOL_MIN,
USB_PHY_3P3_VOL_MAX);
if (rc) {
dev_err(motg->phy.dev, "unable to set voltage level "
"for hsusb 3p3\n");
- goto put_3p3;
+ goto exit;
}
rc = regulator_enable(motg->v3p3);
if (rc) {
dev_err(motg->phy.dev, "unable to enable the hsusb 3p3\n");
- goto put_3p3;
- }
- motg->v1p8 = regulator_get(motg->phy.dev, "HSUSB_1p8");
- if (IS_ERR(motg->v1p8)) {
- dev_err(motg->phy.dev, "unable to get hsusb 1p8\n");
- rc = PTR_ERR(motg->v1p8);
- goto disable_3p3;
+ goto exit;
}
rc = regulator_set_voltage(motg->v1p8, USB_PHY_1P8_VOL_MIN,
USB_PHY_1P8_VOL_MAX);
if (rc) {
dev_err(motg->phy.dev, "unable to set voltage level "
"for hsusb 1p8\n");
- goto put_1p8;
+ goto disable_3p3;
}
rc = regulator_enable(motg->v1p8);
if (rc) {
dev_err(motg->phy.dev, "unable to enable the hsusb 1p8\n");
- goto put_1p8;
+ goto disable_3p3;
}
return 0;
}
regulator_disable(motg->v1p8);
-put_1p8:
- regulator_put(motg->v1p8);
disable_3p3:
regulator_disable(motg->v3p3);
-put_3p3:
- regulator_put(motg->v3p3);
+exit:
return rc;
}
@@ -506,7 +480,7 @@ static int msm_otg_suspend(struct msm_otg *motg)
clk_disable_unprepare(motg->pclk);
clk_disable_unprepare(motg->clk);
- if (motg->core_clk)
+ if (!IS_ERR(motg->core_clk))
clk_disable_unprepare(motg->core_clk);
if (!IS_ERR(motg->pclk_src))
@@ -546,7 +520,7 @@ static int msm_otg_resume(struct msm_otg *motg)
clk_prepare_enable(motg->pclk);
clk_prepare_enable(motg->clk);
- if (motg->core_clk)
+ if (!IS_ERR(motg->core_clk))
clk_prepare_enable(motg->core_clk);
if (motg->pdata->phy_type == SNPS_28NM_INTEGRATED_PHY &&
@@ -1414,13 +1388,14 @@ static int __init msm_otg_probe(struct platform_device *pdev)
return -ENODEV;
}
- motg = kzalloc(sizeof(struct msm_otg), GFP_KERNEL);
+ motg = devm_kzalloc(&pdev->dev, sizeof(struct msm_otg), GFP_KERNEL);
if (!motg) {
dev_err(&pdev->dev, "unable to allocate msm_otg\n");
return -ENOMEM;
}
- motg->phy.otg = kzalloc(sizeof(struct usb_otg), GFP_KERNEL);
+ motg->phy.otg = devm_kzalloc(&pdev->dev, sizeof(struct usb_otg),
+ GFP_KERNEL);
if (!motg->phy.otg) {
dev_err(&pdev->dev, "unable to allocate msm_otg\n");
return -ENOMEM;
@@ -1430,20 +1405,17 @@ static int __init msm_otg_probe(struct platform_device *pdev)
phy = &motg->phy;
phy->dev = &pdev->dev;
- motg->phy_reset_clk = clk_get(&pdev->dev, "usb_phy_clk");
+ motg->phy_reset_clk = devm_clk_get(&pdev->dev, "usb_phy_clk");
if (IS_ERR(motg->phy_reset_clk)) {
dev_err(&pdev->dev, "failed to get usb_phy_clk\n");
- ret = PTR_ERR(motg->phy_reset_clk);
- goto free_motg;
+ return PTR_ERR(motg->phy_reset_clk);
}
- motg->clk = clk_get(&pdev->dev, "usb_hs_clk");
+ motg->clk = devm_clk_get(&pdev->dev, "usb_hs_clk");
if (IS_ERR(motg->clk)) {
dev_err(&pdev->dev, "failed to get usb_hs_clk\n");
- ret = PTR_ERR(motg->clk);
- goto put_phy_reset_clk;
+ return PTR_ERR(motg->clk);
}
- clk_set_rate(motg->clk, 60000000);
/*
* If USB Core is running its protocol engine based on CORE CLK,
@@ -1452,22 +1424,18 @@ static int __init msm_otg_probe(struct platform_device *pdev)
* CORE CLK. For such USB cores, vote for maximum clk frequency
* on pclk source
*/
+ motg->pclk_src = ERR_PTR(-ENOENT);
if (motg->pdata->pclk_src_name) {
- motg->pclk_src = clk_get(&pdev->dev,
- motg->pdata->pclk_src_name);
+ motg->pclk_src = devm_clk_get(&pdev->dev,
+ motg->pdata->pclk_src_name);
if (IS_ERR(motg->pclk_src))
- goto put_clk;
- clk_set_rate(motg->pclk_src, INT_MAX);
- clk_prepare_enable(motg->pclk_src);
- } else
- motg->pclk_src = ERR_PTR(-ENOENT);
-
+ return PTR_ERR(motg->pclk_src);
+ }
- motg->pclk = clk_get(&pdev->dev, "usb_hs_pclk");
+ motg->pclk = devm_clk_get(&pdev->dev, "usb_hs_pclk");
if (IS_ERR(motg->pclk)) {
dev_err(&pdev->dev, "failed to get usb_hs_pclk\n");
- ret = PTR_ERR(motg->pclk);
- goto put_pclk_src;
+ return PTR_ERR(motg->pclk);
}
/*
@@ -1475,65 +1443,78 @@ static int __init msm_otg_probe(struct platform_device *pdev)
* clock is introduced to remove the dependency on AXI
* bus frequency.
*/
- motg->core_clk = clk_get(&pdev->dev, "usb_hs_core_clk");
- if (IS_ERR(motg->core_clk))
- motg->core_clk = NULL;
+ motg->core_clk = devm_clk_get(&pdev->dev, "usb_hs_core_clk");
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_err(&pdev->dev, "failed to get platform resource mem\n");
- ret = -ENODEV;
- goto put_core_clk;
- }
+ motg->regs = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(motg->regs))
+ return PTR_ERR(motg->regs);
- motg->regs = ioremap(res->start, resource_size(res));
- if (!motg->regs) {
- dev_err(&pdev->dev, "ioremap failed\n");
- ret = -ENOMEM;
- goto put_core_clk;
- }
dev_info(&pdev->dev, "OTG regs = %p\n", motg->regs);
motg->irq = platform_get_irq(pdev, 0);
if (!motg->irq) {
dev_err(&pdev->dev, "platform_get_irq failed\n");
- ret = -ENODEV;
- goto free_regs;
+ return motg->irq;
+ }
+
+ motg->vddcx = devm_regulator_get(motg->phy.dev, "HSUSB_VDDCX");
+ if (IS_ERR(motg->vddcx)) {
+ dev_err(motg->phy.dev, "unable to get hsusb vddcx\n");
+ return PTR_ERR(motg->vddcx);
+ }
+
+ motg->v3p3 = devm_regulator_get(motg->phy.dev, "HSUSB_3p3");
+ if (IS_ERR(motg->v3p3)) {
+ dev_err(motg->phy.dev, "unable to get hsusb 3p3\n");
+ return PTR_ERR(motg->v3p3);
+ }
+
+ motg->v1p8 = devm_regulator_get(motg->phy.dev, "HSUSB_1p8");
+ if (IS_ERR(motg->v1p8)) {
+ dev_err(motg->phy.dev, "unable to get hsusb 1p8\n");
+ return PTR_ERR(motg->v1p8);
+ }
+
+ clk_set_rate(motg->clk, 60000000);
+ if (!IS_ERR(motg->pclk_src)) {
+ clk_set_rate(motg->pclk_src, INT_MAX);
+ clk_prepare_enable(motg->pclk_src);
}
clk_prepare_enable(motg->clk);
clk_prepare_enable(motg->pclk);
+ if (!IS_ERR(motg->core_clk))
+ clk_prepare_enable(motg->core_clk);
+
ret = msm_hsusb_init_vddcx(motg, 1);
if (ret) {
dev_err(&pdev->dev, "hsusb vddcx configuration failed\n");
- goto free_regs;
+ goto disable_clks;
}
ret = msm_hsusb_ldo_init(motg, 1);
if (ret) {
dev_err(&pdev->dev, "hsusb vreg configuration failed\n");
- goto vddcx_exit;
+ goto disable_vddcx;
}
ret = msm_hsusb_ldo_set_mode(motg, 1);
if (ret) {
dev_err(&pdev->dev, "hsusb vreg enable failed\n");
- goto ldo_exit;
+ goto disable_ldo;
}
- if (motg->core_clk)
- clk_prepare_enable(motg->core_clk);
-
writel(0, USB_USBINTR);
writel(0, USB_OTGSC);
INIT_WORK(&motg->sm_work, msm_otg_sm_work);
INIT_DELAYED_WORK(&motg->chg_work, msm_chg_detect_work);
- ret = request_irq(motg->irq, msm_otg_irq, IRQF_SHARED,
+ ret = devm_request_irq(&pdev->dev, motg->irq, msm_otg_irq, IRQF_SHARED,
"msm_otg", motg);
if (ret) {
dev_err(&pdev->dev, "request irq failed\n");
- goto disable_clks;
+ goto disable_ldo;
}
phy->init = msm_otg_reset;
@@ -1548,7 +1529,7 @@ static int __init msm_otg_probe(struct platform_device *pdev)
ret = usb_add_phy(&motg->phy, USB_PHY_TYPE_USB2);
if (ret) {
dev_err(&pdev->dev, "usb_add_phy failed\n");
- goto free_irq;
+ goto disable_ldo;
}
platform_set_drvdata(pdev, motg);
@@ -1566,33 +1547,18 @@ static int __init msm_otg_probe(struct platform_device *pdev)
pm_runtime_enable(&pdev->dev);
return 0;
-free_irq:
- free_irq(motg->irq, motg);
+
+disable_ldo:
+ msm_hsusb_ldo_init(motg, 0);
+disable_vddcx:
+ msm_hsusb_init_vddcx(motg, 0);
disable_clks:
clk_disable_unprepare(motg->pclk);
clk_disable_unprepare(motg->clk);
-ldo_exit:
- msm_hsusb_ldo_init(motg, 0);
-vddcx_exit:
- msm_hsusb_init_vddcx(motg, 0);
-free_regs:
- iounmap(motg->regs);
-put_core_clk:
- if (motg->core_clk)
- clk_put(motg->core_clk);
- clk_put(motg->pclk);
-put_pclk_src:
- if (!IS_ERR(motg->pclk_src)) {
+ if (!IS_ERR(motg->core_clk))
+ clk_disable_unprepare(motg->core_clk);
+ if (!IS_ERR(motg->pclk_src))
clk_disable_unprepare(motg->pclk_src);
- clk_put(motg->pclk_src);
- }
-put_clk:
- clk_put(motg->clk);
-put_phy_reset_clk:
- clk_put(motg->phy_reset_clk);
-free_motg:
- kfree(motg->phy.otg);
- kfree(motg);
return ret;
}
@@ -1615,7 +1581,7 @@ static int msm_otg_remove(struct platform_device *pdev)
pm_runtime_disable(&pdev->dev);
usb_remove_phy(phy);
- free_irq(motg->irq, motg);
+ disable_irq(motg->irq);
/*
* Put PHY in low power mode.
@@ -1635,26 +1601,15 @@ static int msm_otg_remove(struct platform_device *pdev)
clk_disable_unprepare(motg->pclk);
clk_disable_unprepare(motg->clk);
- if (motg->core_clk)
+ if (!IS_ERR(motg->core_clk))
clk_disable_unprepare(motg->core_clk);
- if (!IS_ERR(motg->pclk_src)) {
+ if (!IS_ERR(motg->pclk_src))
clk_disable_unprepare(motg->pclk_src);
- clk_put(motg->pclk_src);
- }
+
msm_hsusb_ldo_init(motg, 0);
- iounmap(motg->regs);
pm_runtime_set_suspended(&pdev->dev);
- clk_put(motg->phy_reset_clk);
- clk_put(motg->pclk);
- clk_put(motg->clk);
- if (motg->core_clk)
- clk_put(motg->core_clk);
-
- kfree(motg->phy.otg);
- kfree(motg);
-
return 0;
}
@@ -1736,6 +1691,7 @@ static const struct dev_pm_ops msm_otg_dev_pm_ops = {
#endif
static struct platform_driver msm_otg_driver = {
+ .probe = msm_otg_probe,
.remove = msm_otg_remove,
.driver = {
.name = DRIVER_NAME,
@@ -1746,7 +1702,7 @@ static struct platform_driver msm_otg_driver = {
},
};
-module_platform_driver_probe(msm_otg_driver, msm_otg_probe);
+module_platform_driver(msm_otg_driver);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("MSM USB transceiver driver");
--
1.7.9.5
From: "Ivan T. Ivanov" <[email protected]>
Signed-off-by: Ivan T. Ivanov <[email protected]>
---
drivers/usb/phy/phy-msm-usb.c | 82 ++++++++++++++++++++---------------------
include/linux/usb/msm_hsusb.h | 3 ++
2 files changed, 42 insertions(+), 43 deletions(-)
diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
index 118798d..ab39ecb 100644
--- a/drivers/usb/phy/phy-msm-usb.c
+++ b/drivers/usb/phy/phy-msm-usb.c
@@ -58,47 +58,43 @@
#define USB_PHY_VDD_DIG_VOL_MIN 1000000 /* uV */
#define USB_PHY_VDD_DIG_VOL_MAX 1320000 /* uV */
-static struct regulator *hsusb_3p3;
-static struct regulator *hsusb_1p8;
-static struct regulator *hsusb_vddcx;
-
static int msm_hsusb_init_vddcx(struct msm_otg *motg, int init)
{
int ret = 0;
if (init) {
- hsusb_vddcx = regulator_get(motg->phy.dev, "HSUSB_VDDCX");
- if (IS_ERR(hsusb_vddcx)) {
+ motg->vddcx = regulator_get(motg->phy.dev, "HSUSB_VDDCX");
+ if (IS_ERR(motg->vddcx)) {
dev_err(motg->phy.dev, "unable to get hsusb vddcx\n");
- return PTR_ERR(hsusb_vddcx);
+ return PTR_ERR(motg->vddcx);
}
- ret = regulator_set_voltage(hsusb_vddcx,
+ ret = regulator_set_voltage(motg->vddcx,
USB_PHY_VDD_DIG_VOL_MIN,
USB_PHY_VDD_DIG_VOL_MAX);
if (ret) {
dev_err(motg->phy.dev, "unable to set the voltage "
"for hsusb vddcx\n");
- regulator_put(hsusb_vddcx);
+ regulator_put(motg->vddcx);
return ret;
}
- ret = regulator_enable(hsusb_vddcx);
+ ret = regulator_enable(motg->vddcx);
if (ret) {
dev_err(motg->phy.dev, "unable to enable hsusb vddcx\n");
- regulator_put(hsusb_vddcx);
+ regulator_put(motg->vddcx);
}
} else {
- ret = regulator_set_voltage(hsusb_vddcx, 0,
+ ret = regulator_set_voltage(motg->vddcx, 0,
USB_PHY_VDD_DIG_VOL_MAX);
if (ret)
dev_err(motg->phy.dev, "unable to set the voltage "
"for hsusb vddcx\n");
- ret = regulator_disable(hsusb_vddcx);
+ ret = regulator_disable(motg->vddcx);
if (ret)
dev_err(motg->phy.dev, "unable to disable hsusb vddcx\n");
- regulator_put(hsusb_vddcx);
+ regulator_put(motg->vddcx);
}
return ret;
@@ -109,38 +105,38 @@ static int msm_hsusb_ldo_init(struct msm_otg *motg, int init)
int rc = 0;
if (init) {
- hsusb_3p3 = regulator_get(motg->phy.dev, "HSUSB_3p3");
- if (IS_ERR(hsusb_3p3)) {
+ motg->v3p3 = regulator_get(motg->phy.dev, "HSUSB_3p3");
+ if (IS_ERR(motg->v3p3)) {
dev_err(motg->phy.dev, "unable to get hsusb 3p3\n");
- return PTR_ERR(hsusb_3p3);
+ return PTR_ERR(motg->v3p3);
}
- rc = regulator_set_voltage(hsusb_3p3, USB_PHY_3P3_VOL_MIN,
+ rc = regulator_set_voltage(motg->v3p3, USB_PHY_3P3_VOL_MIN,
USB_PHY_3P3_VOL_MAX);
if (rc) {
dev_err(motg->phy.dev, "unable to set voltage level "
"for hsusb 3p3\n");
goto put_3p3;
}
- rc = regulator_enable(hsusb_3p3);
+ rc = regulator_enable(motg->v3p3);
if (rc) {
dev_err(motg->phy.dev, "unable to enable the hsusb 3p3\n");
goto put_3p3;
}
- hsusb_1p8 = regulator_get(motg->phy.dev, "HSUSB_1p8");
- if (IS_ERR(hsusb_1p8)) {
+ motg->v1p8 = regulator_get(motg->phy.dev, "HSUSB_1p8");
+ if (IS_ERR(motg->v1p8)) {
dev_err(motg->phy.dev, "unable to get hsusb 1p8\n");
- rc = PTR_ERR(hsusb_1p8);
+ rc = PTR_ERR(motg->v1p8);
goto disable_3p3;
}
- rc = regulator_set_voltage(hsusb_1p8, USB_PHY_1P8_VOL_MIN,
+ rc = regulator_set_voltage(motg->v1p8, USB_PHY_1P8_VOL_MIN,
USB_PHY_1P8_VOL_MAX);
if (rc) {
dev_err(motg->phy.dev, "unable to set voltage level "
"for hsusb 1p8\n");
goto put_1p8;
}
- rc = regulator_enable(hsusb_1p8);
+ rc = regulator_enable(motg->v1p8);
if (rc) {
dev_err(motg->phy.dev, "unable to enable the hsusb 1p8\n");
goto put_1p8;
@@ -149,19 +145,19 @@ static int msm_hsusb_ldo_init(struct msm_otg *motg, int init)
return 0;
}
- regulator_disable(hsusb_1p8);
+ regulator_disable(motg->v1p8);
put_1p8:
- regulator_put(hsusb_1p8);
+ regulator_put(motg->v1p8);
disable_3p3:
- regulator_disable(hsusb_3p3);
+ regulator_disable(motg->v3p3);
put_3p3:
- regulator_put(hsusb_3p3);
+ regulator_put(motg->v3p3);
return rc;
}
#ifdef CONFIG_PM_SLEEP
#define USB_PHY_SUSP_DIG_VOL 500000
-static int msm_hsusb_config_vddcx(int high)
+static int msm_hsusb_config_vddcx(struct msm_otg *motg, int high)
{
int max_vol = USB_PHY_VDD_DIG_VOL_MAX;
int min_vol;
@@ -172,7 +168,7 @@ static int msm_hsusb_config_vddcx(int high)
else
min_vol = USB_PHY_SUSP_DIG_VOL;
- ret = regulator_set_voltage(hsusb_vddcx, min_vol, max_vol);
+ ret = regulator_set_voltage(motg->vddcx, min_vol, max_vol);
if (ret) {
pr_err("%s: unable to set the voltage for regulator "
"HSUSB_VDDCX\n", __func__);
@@ -185,44 +181,44 @@ static int msm_hsusb_config_vddcx(int high)
}
#endif
-static int msm_hsusb_ldo_set_mode(int on)
+static int msm_hsusb_ldo_set_mode(struct msm_otg *motg, int on)
{
int ret = 0;
- if (!hsusb_1p8 || IS_ERR(hsusb_1p8)) {
+ if (!motg->v1p8 || IS_ERR(motg->v1p8)) {
pr_err("%s: HSUSB_1p8 is not initialized\n", __func__);
return -ENODEV;
}
- if (!hsusb_3p3 || IS_ERR(hsusb_3p3)) {
+ if (!motg->v3p3 || IS_ERR(motg->v3p3)) {
pr_err("%s: HSUSB_3p3 is not initialized\n", __func__);
return -ENODEV;
}
if (on) {
- ret = regulator_set_optimum_mode(hsusb_1p8,
+ ret = regulator_set_optimum_mode(motg->v1p8,
USB_PHY_1P8_HPM_LOAD);
if (ret < 0) {
pr_err("%s: Unable to set HPM of the regulator "
"HSUSB_1p8\n", __func__);
return ret;
}
- ret = regulator_set_optimum_mode(hsusb_3p3,
+ ret = regulator_set_optimum_mode(motg->v3p3,
USB_PHY_3P3_HPM_LOAD);
if (ret < 0) {
pr_err("%s: Unable to set HPM of the regulator "
"HSUSB_3p3\n", __func__);
- regulator_set_optimum_mode(hsusb_1p8,
+ regulator_set_optimum_mode(motg->v1p8,
USB_PHY_1P8_LPM_LOAD);
return ret;
}
} else {
- ret = regulator_set_optimum_mode(hsusb_1p8,
+ ret = regulator_set_optimum_mode(motg->v1p8,
USB_PHY_1P8_LPM_LOAD);
if (ret < 0)
pr_err("%s: Unable to set LPM of the regulator "
"HSUSB_1p8\n", __func__);
- ret = regulator_set_optimum_mode(hsusb_3p3,
+ ret = regulator_set_optimum_mode(motg->v3p3,
USB_PHY_3P3_LPM_LOAD);
if (ret < 0)
pr_err("%s: Unable to set LPM of the regulator "
@@ -518,8 +514,8 @@ static int msm_otg_suspend(struct msm_otg *motg)
if (motg->pdata->phy_type == SNPS_28NM_INTEGRATED_PHY &&
motg->pdata->otg_control == OTG_PMIC_CONTROL) {
- msm_hsusb_ldo_set_mode(0);
- msm_hsusb_config_vddcx(0);
+ msm_hsusb_ldo_set_mode(motg, 0);
+ msm_hsusb_config_vddcx(motg, 0);
}
if (device_may_wakeup(phy->dev))
@@ -555,8 +551,8 @@ static int msm_otg_resume(struct msm_otg *motg)
if (motg->pdata->phy_type == SNPS_28NM_INTEGRATED_PHY &&
motg->pdata->otg_control == OTG_PMIC_CONTROL) {
- msm_hsusb_ldo_set_mode(1);
- msm_hsusb_config_vddcx(1);
+ msm_hsusb_ldo_set_mode(motg, 1);
+ msm_hsusb_config_vddcx(motg, 1);
writel(readl(USB_PHY_CTRL) & ~PHY_RETEN, USB_PHY_CTRL);
}
@@ -1519,7 +1515,7 @@ static int __init msm_otg_probe(struct platform_device *pdev)
dev_err(&pdev->dev, "hsusb vreg configuration failed\n");
goto vddcx_exit;
}
- ret = msm_hsusb_ldo_set_mode(1);
+ ret = msm_hsusb_ldo_set_mode(motg, 1);
if (ret) {
dev_err(&pdev->dev, "hsusb vreg enable failed\n");
goto ldo_exit;
diff --git a/include/linux/usb/msm_hsusb.h b/include/linux/usb/msm_hsusb.h
index 3275483..8705b01 100644
--- a/include/linux/usb/msm_hsusb.h
+++ b/include/linux/usb/msm_hsusb.h
@@ -183,6 +183,9 @@ struct msm_otg {
enum usb_chg_state chg_state;
enum usb_chg_type chg_type;
u8 dcd_retries;
+ struct regulator *v3p3;
+ struct regulator *v1p8;
+ struct regulator *vddcx;
};
#endif
--
1.7.9.5
Hi,
On Mon, Oct 14, 2013 at 06:24:28PM +0300, Ivan T. Ivanov wrote:
> From: "Ivan T. Ivanov" <[email protected]>
>
> This patch fix compilation error and is an intermediate step
> before the addition of DeviceTree support for newer targets.
>
> Cc: David Brown <[email protected]>
> Cc: Daniel Walker <[email protected]>
> Cc: Felipe Balbi <[email protected]>
> Cc: Greg Kroah-Hartman <[email protected]>
> Signed-off-by: Ivan T. Ivanov <[email protected]>
> ---
> arch/arm/mach-msm/board-msm7x30.c | 35 +++++++++++++++++++++++++++++++++++
> arch/arm/mach-msm/board-qsd8x50.c | 35 +++++++++++++++++++++++++++++++++++
> drivers/usb/phy/phy-msm-usb.c | 34 ++++++++++++++--------------------
> include/linux/usb/msm_hsusb.h | 3 +++
> 4 files changed, 87 insertions(+), 20 deletions(-)
>
> diff --git a/arch/arm/mach-msm/board-msm7x30.c b/arch/arm/mach-msm/board-msm7x30.c
> index f9af5a4..46de789 100644
> --- a/arch/arm/mach-msm/board-msm7x30.c
> +++ b/arch/arm/mach-msm/board-msm7x30.c
> @@ -30,6 +30,7 @@
> #include <asm/memory.h>
> #include <asm/setup.h>
>
> +#include <mach/clk.h>
> #include <mach/msm_iomap.h>
> #include <mach/dma.h>
>
> @@ -60,10 +61,44 @@ static int hsusb_phy_init_seq[] = {
> -1
> };
>
> +static int hsusb_link_clk_reset(struct clk *link_clk, bool assert)
> +{
> + int ret;
> +
> + if (assert) {
> + ret = clk_reset(link_clk, CLK_RESET_ASSERT);
> + if (ret)
> + pr_err("usb hs_clk assert failed\n");
> + } else {
> + ret = clk_reset(link_clk, CLK_RESET_DEASSERT);
> + if (ret)
> + pr_err("usb hs_clk deassert failed\n");
> + }
> + return ret;
> +}
> +
> +static int hsusb_phy_clk_reset(struct clk *phy_clk)
> +{
> + int ret;
> +
> + ret = clk_reset(phy_clk, CLK_RESET_ASSERT);
> + if (ret) {
> + pr_err("usb phy clk assert failed\n");
> + return ret;
> + }
> + usleep_range(10000, 12000);
> + ret = clk_reset(phy_clk, CLK_RESET_DEASSERT);
> + if (ret)
> + pr_err("usb phy clk deassert failed\n");
> + return ret;
> +}
> +
> static struct msm_otg_platform_data msm_otg_pdata = {
> .phy_init_seq = hsusb_phy_init_seq,
> .mode = USB_PERIPHERAL,
> .otg_control = OTG_PHY_CONTROL,
> + .link_clk_reset = hsusb_link_clk_reset,
> + .phy_clk_reset = hsusb_phy_clk_reset,
> };
>
> struct msm_gpiomux_config msm_gpiomux_configs[GPIOMUX_NGPIOS] = {
> diff --git a/arch/arm/mach-msm/board-qsd8x50.c b/arch/arm/mach-msm/board-qsd8x50.c
> index 5f933bc..9169ec3 100644
> --- a/arch/arm/mach-msm/board-qsd8x50.c
> +++ b/arch/arm/mach-msm/board-qsd8x50.c
> @@ -31,6 +31,7 @@
> #include <mach/irqs.h>
> #include <mach/sirc.h>
> #include <mach/vreg.h>
> +#include <mach/clk.h>
> #include <linux/platform_data/mmc-msm_sdcc.h>
>
> #include "devices.h"
> @@ -81,10 +82,44 @@ static int hsusb_phy_init_seq[] = {
> -1
> };
>
> +static int hsusb_link_clk_reset(struct clk *link_clk, bool assert)
> +{
> + int ret;
> +
> + if (assert) {
> + ret = clk_reset(link_clk, CLK_RESET_ASSERT);
> + if (ret)
> + pr_err("usb hs_clk assert failed\n");
> + } else {
> + ret = clk_reset(link_clk, CLK_RESET_DEASSERT);
> + if (ret)
> + pr_err("usb hs_clk deassert failed\n");
> + }
> + return ret;
> +}
> +
> +static int hsusb_phy_clk_reset(struct clk *phy_clk)
> +{
> + int ret;
> +
> + ret = clk_reset(phy_clk, CLK_RESET_ASSERT);
> + if (ret) {
> + pr_err("usb phy clk assert failed\n");
> + return ret;
> + }
> + usleep_range(10000, 12000);
> + ret = clk_reset(phy_clk, CLK_RESET_DEASSERT);
> + if (ret)
> + pr_err("usb phy clk deassert failed\n");
> + return ret;
> +}
> +
> static struct msm_otg_platform_data msm_otg_pdata = {
> .phy_init_seq = hsusb_phy_init_seq,
> .mode = USB_PERIPHERAL,
> .otg_control = OTG_PHY_CONTROL,
> + .link_clk_reset = hsusb_link_clk_reset,
> + .phy_clk_reset = hsusb_phy_clk_reset,
> };
>
> static struct platform_device *devices[] __initdata = {
> diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
> index e9d4cd9..118798d 100644
> --- a/drivers/usb/phy/phy-msm-usb.c
> +++ b/drivers/usb/phy/phy-msm-usb.c
> @@ -40,8 +40,6 @@
> #include <linux/usb/msm_hsusb_hw.h>
> #include <linux/regulator/consumer.h>
>
> -#include <mach/clk.h>
> -
> #define MSM_USB_BASE (motg->regs)
> #define DRIVER_NAME "msm_otg"
>
> @@ -308,33 +306,29 @@ static void ulpi_init(struct msm_otg *motg)
>
> static int msm_otg_link_clk_reset(struct msm_otg *motg, bool assert)
> {
> - int ret;
> + int ret = 0;
> +
> + if (!motg->pdata->link_clk_reset)
> + return ret;
> +
> + ret = motg->pdata->link_clk_reset(motg->clk, assert);
> + if (ret)
> + dev_err(motg->phy.dev, "usb link clk reset failed\n");
>
> - if (assert) {
> - ret = clk_reset(motg->clk, CLK_RESET_ASSERT);
> - if (ret)
> - dev_err(motg->phy.dev, "usb hs_clk assert failed\n");
> - } else {
> - ret = clk_reset(motg->clk, CLK_RESET_DEASSERT);
> - if (ret)
> - dev_err(motg->phy.dev, "usb hs_clk deassert failed\n");
> - }
> return ret;
> }
>
> static int msm_otg_phy_clk_reset(struct msm_otg *motg)
> {
> - int ret;
> + int ret = 0;
>
> - ret = clk_reset(motg->phy_reset_clk, CLK_RESET_ASSERT);
> - if (ret) {
> - dev_err(motg->phy.dev, "usb phy clk assert failed\n");
> + if (!motg->pdata->phy_clk_reset)
> return ret;
> - }
> - usleep_range(10000, 12000);
> - ret = clk_reset(motg->phy_reset_clk, CLK_RESET_DEASSERT);
> +
> + ret = motg->pdata->phy_clk_reset(motg->phy_reset_clk);
> if (ret)
> - dev_err(motg->phy.dev, "usb phy clk deassert failed\n");
> + dev_err(motg->phy.dev, "usb phy clk assert failed\n");
seems like you're doing more than *just* fixing the build error. Which
build error do you get ?
--
balbi
On Mon, Oct 14, 2013 at 06:24:29PM +0300, Ivan T. Ivanov wrote:
> From: "Ivan T. Ivanov" <[email protected]>
>
> Signed-off-by: Ivan T. Ivanov <[email protected]>
this one looks good.
--
balbi
On Mon, Oct 14, 2013 at 06:24:39PM +0300, Ivan T. Ivanov wrote:
> From: "Ivan T. Ivanov" <[email protected]>
>
> IRQ with number 0 is valid case, so check for negative
not entirelly correct... IRQ 0 isn't supposed to be used as a linux IRQ
number IIRC.
> numbers instead.
>
> Signed-off-by: Ivan T. Ivanov <[email protected]>
> ---
> drivers/usb/phy/phy-msm-usb.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
> index ca2abe6..f34c8a9 100644
> --- a/drivers/usb/phy/phy-msm-usb.c
> +++ b/drivers/usb/phy/phy-msm-usb.c
> @@ -1415,7 +1415,7 @@ static int __init msm_otg_probe(struct platform_device *pdev)
> dev_info(&pdev->dev, "OTG regs = %p\n", motg->regs);
>
> motg->irq = platform_get_irq(pdev, 0);
> - if (!motg->irq) {
> + if (motg->irq < 0) {
this check is correct though, since platform_get_irq() will return
-ENXIO if it doesn't find IRQ resource.
--
balbi
On Mon, 2013-10-14 at 17:52 -0500, Felipe Balbi wrote:
> Hi,
>
> On Mon, Oct 14, 2013 at 06:24:28PM +0300, Ivan T. Ivanov wrote:
> > From: "Ivan T. Ivanov" <[email protected]>
> >
> > This patch fix compilation error and is an intermediate step
> > before the addition of DeviceTree support for newer targets.
> >
> > Cc: David Brown <[email protected]>
> > Cc: Daniel Walker <[email protected]>
> > Cc: Felipe Balbi <[email protected]>
> > Cc: Greg Kroah-Hartman <[email protected]>
> > Signed-off-by: Ivan T. Ivanov <[email protected]>
> > ---
> > arch/arm/mach-msm/board-msm7x30.c | 35 +++++++++++++++++++++++++++++++++++
> > arch/arm/mach-msm/board-qsd8x50.c | 35 +++++++++++++++++++++++++++++++++++
> > drivers/usb/phy/phy-msm-usb.c | 34 ++++++++++++++--------------------
> > include/linux/usb/msm_hsusb.h | 3 +++
> > 4 files changed, 87 insertions(+), 20 deletions(-)
> >
> > diff --git a/arch/arm/mach-msm/board-msm7x30.c b/arch/arm/mach-msm/board-msm7x30.c
> > index f9af5a4..46de789 100644
> > --- a/arch/arm/mach-msm/board-msm7x30.c
> > +++ b/arch/arm/mach-msm/board-msm7x30.c
> > @@ -30,6 +30,7 @@
> > #include <asm/memory.h>
> > #include <asm/setup.h>
> >
> > +#include <mach/clk.h>
> > #include <mach/msm_iomap.h>
> > #include <mach/dma.h>
> >
> > @@ -60,10 +61,44 @@ static int hsusb_phy_init_seq[] = {
> > -1
> > };
> >
> > +static int hsusb_link_clk_reset(struct clk *link_clk, bool assert)
> > +{
> > + int ret;
> > +
> > + if (assert) {
> > + ret = clk_reset(link_clk, CLK_RESET_ASSERT);
> > + if (ret)
> > + pr_err("usb hs_clk assert failed\n");
> > + } else {
> > + ret = clk_reset(link_clk, CLK_RESET_DEASSERT);
> > + if (ret)
> > + pr_err("usb hs_clk deassert failed\n");
> > + }
> > + return ret;
> > +}
> > +
> > +static int hsusb_phy_clk_reset(struct clk *phy_clk)
> > +{
> > + int ret;
> > +
> > + ret = clk_reset(phy_clk, CLK_RESET_ASSERT);
> > + if (ret) {
> > + pr_err("usb phy clk assert failed\n");
> > + return ret;
> > + }
> > + usleep_range(10000, 12000);
> > + ret = clk_reset(phy_clk, CLK_RESET_DEASSERT);
> > + if (ret)
> > + pr_err("usb phy clk deassert failed\n");
> > + return ret;
> > +}
> > +
> > static struct msm_otg_platform_data msm_otg_pdata = {
> > .phy_init_seq = hsusb_phy_init_seq,
> > .mode = USB_PERIPHERAL,
> > .otg_control = OTG_PHY_CONTROL,
> > + .link_clk_reset = hsusb_link_clk_reset,
> > + .phy_clk_reset = hsusb_phy_clk_reset,
> > };
> >
> > struct msm_gpiomux_config msm_gpiomux_configs[GPIOMUX_NGPIOS] = {
> > diff --git a/arch/arm/mach-msm/board-qsd8x50.c b/arch/arm/mach-msm/board-qsd8x50.c
> > index 5f933bc..9169ec3 100644
> > --- a/arch/arm/mach-msm/board-qsd8x50.c
> > +++ b/arch/arm/mach-msm/board-qsd8x50.c
> > @@ -31,6 +31,7 @@
> > #include <mach/irqs.h>
> > #include <mach/sirc.h>
> > #include <mach/vreg.h>
> > +#include <mach/clk.h>
> > #include <linux/platform_data/mmc-msm_sdcc.h>
> >
> > #include "devices.h"
> > @@ -81,10 +82,44 @@ static int hsusb_phy_init_seq[] = {
> > -1
> > };
> >
> > +static int hsusb_link_clk_reset(struct clk *link_clk, bool assert)
> > +{
> > + int ret;
> > +
> > + if (assert) {
> > + ret = clk_reset(link_clk, CLK_RESET_ASSERT);
> > + if (ret)
> > + pr_err("usb hs_clk assert failed\n");
> > + } else {
> > + ret = clk_reset(link_clk, CLK_RESET_DEASSERT);
> > + if (ret)
> > + pr_err("usb hs_clk deassert failed\n");
> > + }
> > + return ret;
> > +}
> > +
> > +static int hsusb_phy_clk_reset(struct clk *phy_clk)
> > +{
> > + int ret;
> > +
> > + ret = clk_reset(phy_clk, CLK_RESET_ASSERT);
> > + if (ret) {
> > + pr_err("usb phy clk assert failed\n");
> > + return ret;
> > + }
> > + usleep_range(10000, 12000);
> > + ret = clk_reset(phy_clk, CLK_RESET_DEASSERT);
> > + if (ret)
> > + pr_err("usb phy clk deassert failed\n");
> > + return ret;
> > +}
> > +
> > static struct msm_otg_platform_data msm_otg_pdata = {
> > .phy_init_seq = hsusb_phy_init_seq,
> > .mode = USB_PERIPHERAL,
> > .otg_control = OTG_PHY_CONTROL,
> > + .link_clk_reset = hsusb_link_clk_reset,
> > + .phy_clk_reset = hsusb_phy_clk_reset,
> > };
> >
> > static struct platform_device *devices[] __initdata = {
> > diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
> > index e9d4cd9..118798d 100644
> > --- a/drivers/usb/phy/phy-msm-usb.c
> > +++ b/drivers/usb/phy/phy-msm-usb.c
> > @@ -40,8 +40,6 @@
> > #include <linux/usb/msm_hsusb_hw.h>
> > #include <linux/regulator/consumer.h>
> >
> > -#include <mach/clk.h>
> > -
> > #define MSM_USB_BASE (motg->regs)
> > #define DRIVER_NAME "msm_otg"
> >
> > @@ -308,33 +306,29 @@ static void ulpi_init(struct msm_otg *motg)
> >
> > static int msm_otg_link_clk_reset(struct msm_otg *motg, bool assert)
> > {
> > - int ret;
> > + int ret = 0;
> > +
> > + if (!motg->pdata->link_clk_reset)
> > + return ret;
> > +
> > + ret = motg->pdata->link_clk_reset(motg->clk, assert);
> > + if (ret)
> > + dev_err(motg->phy.dev, "usb link clk reset failed\n");
> >
> > - if (assert) {
> > - ret = clk_reset(motg->clk, CLK_RESET_ASSERT);
> > - if (ret)
> > - dev_err(motg->phy.dev, "usb hs_clk assert failed\n");
> > - } else {
> > - ret = clk_reset(motg->clk, CLK_RESET_DEASSERT);
> > - if (ret)
> > - dev_err(motg->phy.dev, "usb hs_clk deassert failed\n");
> > - }
> > return ret;
> > }
> >
> > static int msm_otg_phy_clk_reset(struct msm_otg *motg)
> > {
> > - int ret;
> > + int ret = 0;
> >
> > - ret = clk_reset(motg->phy_reset_clk, CLK_RESET_ASSERT);
> > - if (ret) {
> > - dev_err(motg->phy.dev, "usb phy clk assert failed\n");
> > + if (!motg->pdata->phy_clk_reset)
> > return ret;
> > - }
> > - usleep_range(10000, 12000);
> > - ret = clk_reset(motg->phy_reset_clk, CLK_RESET_DEASSERT);
> > +
> > + ret = motg->pdata->phy_clk_reset(motg->phy_reset_clk);
> > if (ret)
> > - dev_err(motg->phy.dev, "usb phy clk deassert failed\n");
> > + dev_err(motg->phy.dev, "usb phy clk assert failed\n");
>
> seems like you're doing more than *just* fixing the build error. Which
> build error do you get ?
clk_reset() is defined only in mach code which is not available in
multi platform builds. But you are right, probably I have to mention
that some error messages are also changed.
With this change driver will loss ability to reset PHY and LINk
controllers on newer targets, but I don't think it is functional
on them right now (driver resources are not defined on these
boards). I am planing to add reset framework support to driver in
order to support them.
Regards,
Ivan
On Mon, 2013-10-14 at 17:59 -0500, Felipe Balbi wrote:
> On Mon, Oct 14, 2013 at 06:24:39PM +0300, Ivan T. Ivanov wrote:
> > From: "Ivan T. Ivanov" <[email protected]>
> >
> > IRQ with number 0 is valid case, so check for negative
>
> not entirelly correct... IRQ 0 isn't supposed to be used as a linux IRQ
> number IIRC.
I am not really sure. NO_IRQ is -1 at least on ARM. Also when
taking into account irqdomain's zero as interrupt number is valid??
>
> > numbers instead.
> >
> > Signed-off-by: Ivan T. Ivanov <[email protected]>
> > ---
> > drivers/usb/phy/phy-msm-usb.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
> > index ca2abe6..f34c8a9 100644
> > --- a/drivers/usb/phy/phy-msm-usb.c
> > +++ b/drivers/usb/phy/phy-msm-usb.c
> > @@ -1415,7 +1415,7 @@ static int __init msm_otg_probe(struct platform_device *pdev)
> > dev_info(&pdev->dev, "OTG regs = %p\n", motg->regs);
> >
> > motg->irq = platform_get_irq(pdev, 0);
> > - if (!motg->irq) {
> > + if (motg->irq < 0) {
>
> this check is correct though, since platform_get_irq() will return
> -ENXIO if it doesn't find IRQ resource.
>
Thanks,
Ivan