usb: ci_hdrc_imx: Return -EINVAL for missing USB PHY
-ENODEV is interpreted by the generic driver probing function as a
non-matching driver. This leads to a missing probe failure message.
Also a missing USB PHY is more of an invalid configuration of the usb
driver because it is necessary.
This patch returns -EINVAL if devm_usb_get_phy_by_phandle() returned -ENODEV.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c
index 2e58f8d..65444b0 100644
--- a/drivers/usb/chipidea/ci_hdrc_imx.c
+++ b/drivers/usb/chipidea/ci_hdrc_imx.c
@@ -133,6 +133,9 @@
data->phy = devm_usb_get_phy_by_phandle(&pdev->dev, "fsl,usbphy", 0);
if (IS_ERR(data->phy)) {
ret = PTR_ERR(data->phy);
+ /* Return -EINVAL if no usbphy is available */
+ if (ret == -ENODEV)
+ ret = -EINVAL;
goto err_clk;
}