Currently init_quirk callbacks for xhci platform drivers are called
xhci_plat_setup() function which is called after chip reset completes.
It happens in the middle of the usb_add_hcd() function.
But XHCI_SKIP_PHY_INIT quirk is checked in the xhci_plat_probe() function
prior calling usb_add_hcd() function. Therefore this XHCI_SKIP_PHY_INIT
currently does nothing as prior xhci_plat_setup() it is not set.
Quirk XHCI_SKIP_PHY_INIT is only setting hcd->skip_phy_initialization value
which really needs to be set prior calling usb_add_hcd() as this function
at its beginning skips PHY init if this member is set.
This patch fixes implementation of the XHCI_SKIP_PHY_INIT quirk by calling
init_quirk callbacks (via xhci_priv_init_quirk()) prior checking if
XHCI_SKIP_PHY_INIT is set.
Fixes: f768e718911e0 ("usb: host: xhci-plat: add priv quirk for skip PHY initialization")
Signed-off-by: Pali Rohár <pali@xxxxxxxxxx>
---
drivers/usb/host/xhci-plat.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index 4d34f6005381..58704c5b002b 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -89,13 +89,6 @@ static void xhci_plat_quirks(struct device *dev, struct xhci_hcd *xhci)
/* called during probe() after chip reset completes */
static int xhci_plat_setup(struct usb_hcd *hcd)
{
- int ret;
-
-
- ret = xhci_priv_init_quirk(hcd);
- if (ret)
- return ret;
-
return xhci_gen_setup(hcd, xhci_plat_quirks);
}
@@ -330,6 +323,13 @@ static int xhci_plat_probe(struct platform_device *pdev)
hcd->tpl_support = of_usb_host_tpl_support(sysdev->of_node);
xhci->shared_hcd->tpl_support = hcd->tpl_support;
+
+ if (priv) {
+ ret = xhci_priv_init_quirk(hcd);
+ if (ret)
+ goto disable_usb_phy;
+ }
+
if (priv && (priv->quirks & XHCI_SKIP_PHY_INIT))
hcd->skip_phy_initialization = 1;
--
2.20.1
