This patch adds support to return -EPROBE_DEFER if devm_phy_get reports
it. If devm_phy_get returns -EPROBE_DEFER it could be that there is some
usb phy but it's not probed before. Other return values should indicate
a looking for an "old style USB PHY".
Cc: John Youn <johnyoun@xxxxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Stephen Warren <swarren@xxxxxxxxxxxxx>
Signed-off-by: Alexander Aring <alex.aring@xxxxxxxxx>
---
drivers/usb/dwc2/platform.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c
index 9093530..69258d0 100644
--- a/drivers/usb/dwc2/platform.c
+++ b/drivers/usb/dwc2/platform.c
@@ -228,6 +228,9 @@ static int dwc2_driver_probe(struct platform_device *dev)
*/
phy = devm_phy_get(&dev->dev, "usb2-phy");
if (IS_ERR(phy)) {
+ if (PTR_ERR(phy) == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+
hsotg->phy = NULL;
uphy = devm_usb_get_phy(&dev->dev, USB_PHY_TYPE_USB2);
if (IS_ERR(uphy))
--
2.6.1
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