[PATCH usb-next] usb: dwc3: Use devm_of_platform_populate

Jisheng Zhang
2020-11-09T02:00:14Z

Use managed API devm_of_platform_populate() to simplify error and exit
code path.

Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
---
drivers/usb/dwc3/dwc3-exynos.c | 2 +-
drivers/usb/dwc3/dwc3-keystone.c | 2 +-
drivers/usb/dwc3/dwc3-meson-g12a.c | 5 +----
drivers/usb/dwc3/dwc3-of-simple.c | 4 +---
drivers/usb/dwc3/dwc3-omap.c | 3 +--
drivers/usb/dwc3/dwc3-qcom.c | 8 ++------
drivers/usb/dwc3/dwc3-st.c | 4 +---
7 files changed, 8 insertions(+), 20 deletions(-)

diff --git a/drivers/usb/dwc3/dwc3-exynos.c b/drivers/usb/dwc3/dwc3-exynos.c
index 90bb022737da..f567d1e63c05 100644
--- a/drivers/usb/dwc3/dwc3-exynos.c
+++ b/drivers/usb/dwc3/dwc3-exynos.c
@@ -110,7 +110,7 @@ static int dwc3_exynos_probe(struct platform_device *pdev)
}

if (node) {
- ret = of_platform_populate(node, NULL, NULL, dev);
+ ret = devm_of_platform_populate(dev);
if (ret) {
dev_err(dev, "failed to add dwc3 core\n");
goto populate_err;
diff --git a/drivers/usb/dwc3/dwc3-keystone.c b/drivers/usb/dwc3/dwc3-keystone.c
index 9a99253d5ba3..626b16c46688 100644
--- a/drivers/usb/dwc3/dwc3-keystone.c
+++ b/drivers/usb/dwc3/dwc3-keystone.c
@@ -157,7 +157,7 @@ static int kdwc3_probe(struct platform_device *pdev)
kdwc3_enable_irqs(kdwc);

skip_irq:
- error = of_platform_populate(node, NULL, NULL, dev);
+ error = devm_of_platform_populate(dev);
if (error) {
dev_err(&pdev->dev, "failed to create dwc3 core\n");
goto err_core;
diff --git a/drivers/usb/dwc3/dwc3-meson-g12a.c b/drivers/usb/dwc3/dwc3-meson-g12a.c
index 417e05381b5d..83015bb7b926 100644
--- a/drivers/usb/dwc3/dwc3-meson-g12a.c
+++ b/drivers/usb/dwc3/dwc3-meson-g12a.c
@@ -702,7 +702,6 @@ static int dwc3_meson_g12a_probe(struct platform_device *pdev)
{
struct dwc3_meson_g12a *priv;
struct device *dev = &pdev->dev;
- struct device_node *np = dev->of_node;
void __iomem *base;
int ret, i;

@@ -794,7 +793,7 @@ static int dwc3_meson_g12a_probe(struct platform_device *pdev)
goto err_phys_power;
}

- ret = of_platform_populate(np, NULL, NULL, dev);
+ ret = devm_of_platform_populate(dev);
if (ret)
goto err_phys_power;

@@ -832,8 +831,6 @@ static int dwc3_meson_g12a_remove(struct platform_device *pdev)
if (priv->drvdata->otg_switch_supported)
usb_role_switch_unregister(priv->role_switch);

- of_platform_depopulate(dev);
-
for (i = 0 ; i < PHY_COUNT ; ++i) {
phy_power_off(priv->phys[i]);
phy_exit(priv->phys[i]);
diff --git a/drivers/usb/dwc3/dwc3-of-simple.c b/drivers/usb/dwc3/dwc3-of-simple.c
index e62ecd22b3ed..f1c267e39d62 100644
--- a/drivers/usb/dwc3/dwc3-of-simple.c
+++ b/drivers/usb/dwc3/dwc3-of-simple.c
@@ -73,7 +73,7 @@ static int dwc3_of_simple_probe(struct platform_device *pdev)
if (ret)
goto err_resetc_assert;

- ret = of_platform_populate(np, NULL, NULL, dev);
+ ret = devm_of_platform_populate(dev);
if (ret)
goto err_clk_put;

@@ -97,8 +97,6 @@ static int dwc3_of_simple_probe(struct platform_device *pdev)

static void __dwc3_of_simple_teardown(struct dwc3_of_simple *simple)
{
- of_platform_depopulate(simple->dev);
-
clk_bulk_disable_unprepare(simple->num_clocks, simple->clks);
clk_bulk_put_all(simple->num_clocks, simple->clks);
simple->num_clocks = 0;
diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c
index 3db17806e92e..46e7a1dd7c50 100644
--- a/drivers/usb/dwc3/dwc3-omap.c
+++ b/drivers/usb/dwc3/dwc3-omap.c
@@ -505,7 +505,7 @@ static int dwc3_omap_probe(struct platform_device *pdev)
if (ret < 0)
goto err1;

- ret = of_platform_populate(node, NULL, NULL, dev);
+ ret = devm_of_platform_populate(dev);
if (ret) {
dev_err(&pdev->dev, "failed to create dwc3 core\n");
goto err1;
@@ -535,7 +535,6 @@ static int dwc3_omap_remove(struct platform_device *pdev)

dwc3_omap_disable_irqs(omap);
disable_irq(omap->irq);
- of_platform_depopulate(omap->dev);
pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);

diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c
index c703d552bbcf..8f5714c3d379 100644
--- a/drivers/usb/dwc3/dwc3-qcom.c
+++ b/drivers/usb/dwc3/dwc3-qcom.c
@@ -636,7 +636,7 @@ static int dwc3_qcom_of_register_core(struct platform_device *pdev)
return -ENODEV;
}

- ret = of_platform_populate(np, NULL, NULL, dev);
+ ret = devm_of_platform_populate(dev);
if (ret) {
dev_err(dev, "failed to register dwc3 core - %d\n", ret);
return ret;
@@ -775,9 +775,7 @@ static int dwc3_qcom_probe(struct platform_device *pdev)
interconnect_exit:
dwc3_qcom_interconnect_exit(qcom);
depopulate:
- if (np)
- of_platform_depopulate(&pdev->dev);
- else
+ if (!np)
platform_device_put(pdev);
clk_disable:
for (i = qcom->num_clocks - 1; i >= 0; i--) {
@@ -796,8 +794,6 @@ static int dwc3_qcom_remove(struct platform_device *pdev)
struct device *dev = &pdev->dev;
int i;

- of_platform_depopulate(dev);
-
for (i = qcom->num_clocks - 1; i >= 0; i--) {
clk_disable_unprepare(qcom->clks[i]);
clk_put(qcom->clks[i]);
diff --git a/drivers/usb/dwc3/dwc3-st.c b/drivers/usb/dwc3/dwc3-st.c
index e733be840545..9ec2ecf8d81f 100644
--- a/drivers/usb/dwc3/dwc3-st.c
+++ b/drivers/usb/dwc3/dwc3-st.c
@@ -259,7 +259,7 @@ static int st_dwc3_probe(struct platform_device *pdev)
}

/* Allocate and initialize the core */
- ret = of_platform_populate(node, NULL, NULL, dev);
+ ret = devm_of_platform_populate(dev);
if (ret) {
dev_err(dev, "failed to add dwc3 core\n");
goto err_node_put;
@@ -309,8 +309,6 @@ static int st_dwc3_remove(struct platform_device *pdev)
{
struct st_dwc3 *dwc3_data = platform_get_drvdata(pdev);

- of_platform_depopulate(&pdev->dev);
-
reset_control_assert(dwc3_data->rstc_pwrdn);
reset_control_assert(dwc3_data->rstc_rst);

--
2.29.2