usb: host: xhci-plat: add support for the R-Car H2 and M2 xHCI controllers

[firefly-linux-kernel-4.4.55.git] / drivers / usb / host / xhci-plat.c

diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index 794219d8d2a9047eee5c8d6d7b3928f91be1ce59..1a0cf9f31e4375b9260cfd149164bc8c29f00c5a 100644 (file)
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -21,6 +21,7 @@
 
 #include "xhci.h"
 #include "xhci-mvebu.h"
+#include "xhci-rcar.h"
 
 static void xhci_plat_quirks(struct device *dev, struct xhci_hcd *xhci)
 {
@@ -35,11 +36,27 @@ 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)
 {
+       struct device_node *of_node = hcd->self.controller->of_node;
+       int ret;
+
+       if (of_device_is_compatible(of_node, "renesas,xhci-r8a7790") ||
+           of_device_is_compatible(of_node, "renesas,xhci-r8a7791")) {
+               ret = xhci_rcar_init_quirk(hcd);
+               if (ret)
+                       return ret;
+       }
+
        return xhci_gen_setup(hcd, xhci_plat_quirks);
 }
 
 static int xhci_plat_start(struct usb_hcd *hcd)
 {
+       struct device_node *of_node = hcd->self.controller->of_node;
+
+       if (of_device_is_compatible(of_node, "renesas,xhci-r8a7790") ||
+           of_device_is_compatible(of_node, "renesas,xhci-r8a7791"))
+               xhci_rcar_start(hcd);
+
        return xhci_run(hcd);
 }
 
@@ -263,6 +280,8 @@ static const struct of_device_id usb_xhci_of_match[] = {
        { .compatible = "xhci-platform" },
        { .compatible = "marvell,armada-375-xhci"},
        { .compatible = "marvell,armada-380-xhci"},
+       { .compatible = "renesas,xhci-r8a7790"},
+       { .compatible = "renesas,xhci-r8a7791"},
        { },
 };
 MODULE_DEVICE_TABLE(of, usb_xhci_of_match);