usb: dwc3: disable USB core PHY management

commit 6000b8d900cd5f52fbcd0776d0cc396e88c8c2ea upstream.

The dwc3 driver manages its PHYs itself so the USB core PHY management
needs to be disabled.

Use the struct xhci_plat_priv hack added by commits 46034a999c07 ("usb:
host: xhci-plat: add platform data support") and f768e718911e ("usb:
host: xhci-plat: add priv quirk for skip PHY initialization") to
propagate the setting for now.

Fixes: 4e88d4c08301 ("usb: add a flag to skip PHY initialization to struct usb_hcd")
Fixes: 178a0bce05cb ("usb: core: hcd: integrate the PHY wrapper into the HCD core")
Tested-by: Matthias Kaehlcke <mka@chromium.org>
Cc: stable <stable@kernel.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20220825131836.19769-1-johan+linaro@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ johan: adjust context to 5.15 ]
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/dwc3/host.c b/drivers/usb/dwc3/host.c
index 38bcb079ffc74baddf16bc45179719a2c9d5c3e9..a4eacc5cf58af519a12b5ccb321a65d47846d27d 100644 (file)
--- a/drivers/usb/dwc3/host.c
+++ b/drivers/usb/dwc3/host.c
@@ -9,8 +9,13 @@
 
 #include <linux/platform_device.h>
 
+#include "../host/xhci-plat.h"
 #include "core.h"
 
+static const struct xhci_plat_priv dwc3_xhci_plat_priv = {
+       .quirks = XHCI_SKIP_PHY_INIT,
+};
+
 static int dwc3_host_get_irq(struct dwc3 *dwc)
 {
        struct platform_device  *dwc3_pdev = to_platform_device(dwc->dev);
@@ -85,6 +90,11 @@ int dwc3_host_init(struct dwc3 *dwc)
                goto err;
        }
 
+       ret = platform_device_add_data(xhci, &dwc3_xhci_plat_priv,
+                                       sizeof(dwc3_xhci_plat_priv));
+       if (ret)
+               goto err;
+
        memset(props, 0, sizeof(struct property_entry) * ARRAY_SIZE(props));
 
        if (dwc->usb3_lpm_capable)