Adds entry point at dwc3 core init function to enable
USB 3.0 PHY driver.
Signed-off-by: Ran Wang <ran.wang_1@xxxxxxx>
---
Change in v2:
- New file
drivers/usb/dwc3/core.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 03474d3575ab..a9df03c64a7b 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -746,6 +746,8 @@ static int dwc3_core_init(struct dwc3 *dwc)
{
u32 reg;
int ret;
+ int retval;
+ struct phy *phy;
if (!dwc3_core_is_valid(dwc)) {
dev_err(dwc->dev, "this is not a DesignWare USB3 DRD Core\n");
@@ -770,6 +772,19 @@ static int dwc3_core_init(struct dwc3 *dwc)
if (ret)
goto err0;
+ phy = phy_get(dwc->dev, "usb-phy");
+ if (IS_ERR(phy)) {
+ retval = PTR_ERR(phy);
+ if (retval == -EPROBE_DEFER)
+ dev_dbg(dwc->dev, "usb-phy no found\n");
+ } else {
+ retval = phy_init(phy);
+ if (retval) {
+ phy_put(phy);
+ dev_dbg(dwc->dev, "phy_init() error!\n");
+ }
+ }
+
ret = dwc3_core_soft_reset(dwc);
if (ret)
goto err0;
--
2.14.1
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