"usb_otg_ss_refclk960m" is needed for usb2 phy present in omap5. For
omap4, the clk_get of this clock will fail since it does not have this
clock.
Signed-off-by: Kishon Vijay Abraham I <kishon@xxxxxx>
---
drivers/usb/phy/omap-usb2.c | 18 ++++++++++++++++--
1 file changed, 16 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/phy/omap-usb2.c b/drivers/usb/phy/omap-usb2.c
index d36c282..5512207 100644
--- a/drivers/usb/phy/omap-usb2.c
+++ b/drivers/usb/phy/omap-usb2.c
@@ -190,6 +190,12 @@ static int __devinit omap_usb2_probe(struct platform_device *pdev)
}
clk_prepare(phy->wkupclk);
+ phy->optclk = devm_clk_get(phy->dev, "usb_otg_ss_refclk960m");
+ if (IS_ERR(phy->optclk))
+ dev_vdbg(&pdev->dev, "unable to get refclk960m\n");
+ else
+ clk_prepare(phy->optclk);
+
usb_add_phy(&phy->phy, USB_PHY_TYPE_USB2);
platform_set_drvdata(pdev, phy);
@@ -204,6 +210,7 @@ static int __devexit omap_usb2_remove(struct platform_device *pdev)
struct omap_usb *phy = platform_get_drvdata(pdev);
clk_unprepare(phy->wkupclk);
+ clk_unprepare(phy->optclk);
usb_remove_phy(&phy->phy);
return 0;
@@ -217,6 +224,7 @@ static int omap_usb2_runtime_suspend(struct device *dev)
struct omap_usb *phy = platform_get_drvdata(pdev);
clk_disable(phy->wkupclk);
+ clk_disable(phy->optclk);
return 0;
}
@@ -228,10 +236,16 @@ static int omap_usb2_runtime_resume(struct device *dev)
struct omap_usb *phy = platform_get_drvdata(pdev);
ret = clk_enable(phy->wkupclk);
- if (ret < 0)
+ if (ret < 0) {
dev_err(phy->dev, "Failed to enable wkupclk %d\n", ret);
+ return ret;
+ }
- return ret;
+ ret = clk_enable(phy->optclk);
+ if (ret < 0)
+ dev_vdbg(phy->dev, "Failed to enable optclk %d\n", ret);
+
+ return 0;
}
static const struct dev_pm_ops omap_usb2_pm_ops = {
--
1.7.9.5
--
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