[PATCH 5/7] USB chipidea i.MX: use devm_usb_get_phy_by_phandle to get phy
Michael Grzeschik
mgr at pengutronix.de
Sat Jun 1 04:38:47 EST 2013
From: Sascha Hauer <s.hauer at pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
drivers/usb/chipidea/ci13xxx_imx.c | 41 ++++++++++++++++++--------------------
1 file changed, 19 insertions(+), 22 deletions(-)
diff --git a/drivers/usb/chipidea/ci13xxx_imx.c b/drivers/usb/chipidea/ci13xxx_imx.c
index 4d64541..48c446b 100644
--- a/drivers/usb/chipidea/ci13xxx_imx.c
+++ b/drivers/usb/chipidea/ci13xxx_imx.c
@@ -29,7 +29,6 @@
((struct usb_phy *)platform_get_drvdata(pdev))
struct ci13xxx_imx_data {
- struct device_node *phy_np;
struct usb_phy *phy;
struct platform_device *ci_pdev;
struct clk *clk;
@@ -98,12 +97,12 @@ static int ci13xxx_imx_probe(struct platform_device *pdev)
CI13XXX_PULLUP_ON_VBUS |
CI13XXX_DISABLE_STREAMING,
};
- struct platform_device *plat_ci, *phy_pdev;
- struct device_node *phy_np;
+ struct platform_device *plat_ci;
struct resource *res;
struct regulator *reg_vbus;
struct pinctrl *pinctrl;
int ret;
+ struct usb_phy *phy;
if (of_find_property(pdev->dev.of_node, "fsl,usbmisc", NULL)
&& !usbmisc_ops)
@@ -140,19 +139,21 @@ static int ci13xxx_imx_probe(struct platform_device *pdev)
return ret;
}
- phy_np = of_parse_phandle(pdev->dev.of_node, "fsl,usbphy", 0);
- if (phy_np) {
- data->phy_np = phy_np;
- phy_pdev = of_find_device_by_node(phy_np);
- if (phy_pdev) {
- struct usb_phy *phy;
- phy = pdev_to_phy(phy_pdev);
- if (phy &&
- try_module_get(phy_pdev->dev.driver->owner)) {
- usb_phy_init(phy);
- data->phy = phy;
- }
+ phy = devm_usb_get_phy_by_phandle(&pdev->dev, "fsl,usbphy", 0);
+
+ if (PTR_ERR(phy) == -EPROBE_DEFER) {
+ ret = -EPROBE_DEFER;
+ goto err_clk;
+ }
+
+ if (!IS_ERR(phy)) {
+ ret = usb_phy_init(phy);
+ if (ret) {
+ dev_err(&pdev->dev, "unable to init phy: %d\n", ret);
+ goto err_clk;
}
+
+ data->phy = phy;
}
/* we only support host now, so enable vbus here */
@@ -163,7 +164,7 @@ static int ci13xxx_imx_probe(struct platform_device *pdev)
dev_err(&pdev->dev,
"Failed to enable vbus regulator, err=%d\n",
ret);
- goto put_np;
+ goto err_clk;
}
data->reg_vbus = reg_vbus;
} else {
@@ -202,7 +203,7 @@ static int ci13xxx_imx_probe(struct platform_device *pdev)
if (ret) {
dev_err(&pdev->dev,
"usbmisc post failed, ret=%d\n", ret);
- goto put_np;
+ goto err;
}
}
@@ -217,9 +218,7 @@ static int ci13xxx_imx_probe(struct platform_device *pdev)
err:
if (reg_vbus)
regulator_disable(reg_vbus);
-put_np:
- if (phy_np)
- of_node_put(phy_np);
+err_clk:
clk_disable_unprepare(data->clk);
return ret;
}
@@ -239,8 +238,6 @@ static int ci13xxx_imx_remove(struct platform_device *pdev)
module_put(data->phy->dev->driver->owner);
}
- of_node_put(data->phy_np);
-
clk_disable_unprepare(data->clk);
platform_set_drvdata(pdev, NULL);
--
1.8.2.rc2
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