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Date: Tue, 9 Jul 2013 18:47:09 +0300
From: "Ivan T. Ivanov" <iivanov@...sol.com>
To: balbi@...com, gregkh@...uxfoundation.org
Cc: linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-msm@...r.kernel.org,
"Ivan T. Ivanov" <iivanov@...sol.com>
Subject: [PATCH v2 3/7] usb: phy: msm: Move regulator usage to managed resource allocation
From: "Ivan T. Ivanov" <iivanov@...sol.com>
This patch move global regulators variables to driver state
structire and move allocation of the regulators to be devm managed.
Signed-off-by: Ivan T. Ivanov <iivanov@...sol.com>
---
drivers/usb/phy/phy-msm-usb.c | 111 +++++++++++++++++++----------------------
include/linux/usb/msm_hsusb.h | 3 ++
2 files changed, 53 insertions(+), 61 deletions(-)
diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
index cc37f5e..8289270 100644
--- a/drivers/usb/phy/phy-msm-usb.c
+++ b/drivers/usb/phy/phy-msm-usb.c
@@ -58,47 +58,32 @@
#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)) {
- dev_err(motg->phy.dev, "unable to get hsusb vddcx\n");
- return PTR_ERR(hsusb_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);
return ret;
}
- ret = regulator_enable(hsusb_vddcx);
- if (ret) {
+ ret = regulator_enable(motg->vddcx);
+ if (ret)
dev_err(motg->phy.dev, "unable to enable hsusb vddcx\n");
- regulator_put(hsusb_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);
}
return ret;
@@ -109,59 +94,44 @@ 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)) {
- dev_err(motg->phy.dev, "unable to get hsusb 3p3\n");
- return PTR_ERR(hsusb_3p3);
- }
-
- 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;
+ return rc;
}
- 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)) {
- dev_err(motg->phy.dev, "unable to get hsusb 1p8\n");
- rc = PTR_ERR(hsusb_1p8);
- goto disable_3p3;
+ return rc;
}
- 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;
+ goto disable_3p3;
}
- 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;
+ goto disable_3p3;
}
return 0;
}
- regulator_disable(hsusb_1p8);
-put_1p8:
- regulator_put(hsusb_1p8);
+ regulator_disable(motg->v1p8);
disable_3p3:
- regulator_disable(hsusb_3p3);
-put_3p3:
- regulator_put(hsusb_3p3);
+ regulator_disable(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 +142,7 @@ 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 +155,44 @@ 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 "
@@ -491,8 +461,8 @@ 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))
@@ -528,8 +498,8 @@ 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);
}
@@ -1478,6 +1448,24 @@ static int __init msm_otg_probe(struct platform_device *pdev)
return motg->irq;
}
+ motg->v3p3 = devm_regulator_get(&pdev->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(&pdev->dev, "HSUSB_1p8");
+ if (IS_ERR(motg->v1p8)) {
+ dev_err(motg->phy.dev, "unable to get hsusb 1p8\n");
+ return PTR_ERR(motg->v1p8);
+ }
+
+ motg->vddcx = devm_regulator_get(&pdev->dev, "HSUSB_VDDCX");
+ if (IS_ERR(motg->vddcx)) {
+ dev_err(motg->phy.dev, "unable to get hsusb vddcx\n");
+ return PTR_ERR(motg->vddcx);
+ }
+
clk_prepare_enable(motg->clk);
clk_prepare_enable(motg->pclk);
@@ -1492,7 +1480,7 @@ 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;
@@ -1598,6 +1586,7 @@ static int msm_otg_remove(struct platform_device *pdev)
clk_put(motg->pclk_src);
}
msm_hsusb_ldo_init(motg, 0);
+ msm_hsusb_init_vddcx(motg, 0);
pm_runtime_set_suspended(&pdev->dev);
return 0;
diff --git a/include/linux/usb/msm_hsusb.h b/include/linux/usb/msm_hsusb.h
index 66081ed..e01f7d4 100644
--- a/include/linux/usb/msm_hsusb.h
+++ b/include/linux/usb/msm_hsusb.h
@@ -182,6 +182,9 @@ 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
--
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