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Date: Thu, 4 Apr 2024 12:43:21 +0530
From: Anand Moon <linux.amoon@...il.com>
To: Thinh Nguyen <Thinh.Nguyen@...opsys.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
Alim Akhtar <alim.akhtar@...sung.com>
Cc: Anand Moon <linux.amoon@...il.com>,
Christophe JAILLET <christophe.jaillet@...adoo.fr>,
Johan Hovold <johan@...nel.org>,
linux-usb@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-samsung-soc@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v2 5/6] usb: dwc3: exynos: Use devm_regulator_bulk_get_enable() helper function
Use devm_regulator_bulk_get_enable() instead of open coded
'devm_regulator_get(), regulator_enable(), regulator_disable().
Signed-off-by: Anand Moon <linux.amoon@...il.com>
---
V2: no changes, did not find any regression in pm suspend/resume.
---
drivers/usb/dwc3/dwc3-exynos.c | 50 ++++------------------------------
1 file changed, 5 insertions(+), 45 deletions(-)
diff --git a/drivers/usb/dwc3/dwc3-exynos.c b/drivers/usb/dwc3/dwc3-exynos.c
index 5d365ca51771..2d341f0e22a3 100644
--- a/drivers/usb/dwc3/dwc3-exynos.c
+++ b/drivers/usb/dwc3/dwc3-exynos.c
@@ -32,9 +32,6 @@ struct dwc3_exynos {
struct clk *clks[DWC3_EXYNOS_MAX_CLOCKS];
int num_clks;
int suspend_clk_idx;
-
- struct regulator *vdd33;
- struct regulator *vdd10;
};
static int dwc3_exynos_probe(struct platform_device *pdev)
@@ -44,6 +41,7 @@ static int dwc3_exynos_probe(struct platform_device *pdev)
struct device_node *node = dev->of_node;
const struct dwc3_exynos_driverdata *driver_data;
int i, ret;
+ static const char * const regulators[] = { "vdd33", "vdd10" };
exynos = devm_kzalloc(dev, sizeof(*exynos), GFP_KERNEL);
if (!exynos)
@@ -78,27 +76,10 @@ static int dwc3_exynos_probe(struct platform_device *pdev)
if (exynos->suspend_clk_idx >= 0)
clk_prepare_enable(exynos->clks[exynos->suspend_clk_idx]);
- exynos->vdd33 = devm_regulator_get(dev, "vdd33");
- if (IS_ERR(exynos->vdd33)) {
- ret = PTR_ERR(exynos->vdd33);
- goto vdd33_err;
- }
- ret = regulator_enable(exynos->vdd33);
- if (ret) {
- dev_err(dev, "Failed to enable VDD33 supply\n");
- goto vdd33_err;
- }
-
- exynos->vdd10 = devm_regulator_get(dev, "vdd10");
- if (IS_ERR(exynos->vdd10)) {
- ret = PTR_ERR(exynos->vdd10);
- goto vdd10_err;
- }
- ret = regulator_enable(exynos->vdd10);
- if (ret) {
- dev_err(dev, "Failed to enable VDD10 supply\n");
- goto vdd10_err;
- }
+ ret = devm_regulator_bulk_get_enable(dev, ARRAY_SIZE(regulators),
+ regulators);
+ if (ret)
+ return dev_err_probe(dev, ret, "Failed to enable regulators\n");
if (node) {
ret = of_platform_populate(node, NULL, NULL, dev);
@@ -115,10 +96,6 @@ static int dwc3_exynos_probe(struct platform_device *pdev)
return 0;
populate_err:
- regulator_disable(exynos->vdd10);
-vdd10_err:
- regulator_disable(exynos->vdd33);
-vdd33_err:
for (i = exynos->num_clks - 1; i >= 0; i--)
clk_disable_unprepare(exynos->clks[i]);
@@ -140,9 +117,6 @@ static void dwc3_exynos_remove(struct platform_device *pdev)
if (exynos->suspend_clk_idx >= 0)
clk_disable_unprepare(exynos->clks[exynos->suspend_clk_idx]);
-
- regulator_disable(exynos->vdd33);
- regulator_disable(exynos->vdd10);
}
static const struct dwc3_exynos_driverdata exynos5250_drvdata = {
@@ -196,9 +170,6 @@ static int dwc3_exynos_suspend(struct device *dev)
for (i = exynos->num_clks - 1; i >= 0; i--)
clk_disable_unprepare(exynos->clks[i]);
- regulator_disable(exynos->vdd33);
- regulator_disable(exynos->vdd10);
-
return 0;
}
@@ -207,17 +178,6 @@ static int dwc3_exynos_resume(struct device *dev)
struct dwc3_exynos *exynos = dev_get_drvdata(dev);
int i, ret;
- ret = regulator_enable(exynos->vdd33);
- if (ret) {
- dev_err(dev, "Failed to enable VDD33 supply\n");
- return ret;
- }
- ret = regulator_enable(exynos->vdd10);
- if (ret) {
- dev_err(dev, "Failed to enable VDD10 supply\n");
- return ret;
- }
-
for (i = 0; i < exynos->num_clks; i++) {
ret = clk_prepare_enable(exynos->clks[i]);
if (ret) {
--
2.44.0
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