[PATCH V5] usb: Add Device Tree support to XHCI Platform driver

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Add Device Tree match table to xhci-plat.c. Add DT bindings document.

Signed-off-by: Al Cooper <alcooperx@xxxxxxxxx>
---
 Documentation/devicetree/bindings/usb/usb-xhci.txt |   14 ++++++++++++++
 drivers/usb/host/xhci-plat.c                       |   10 ++++++++++
 2 files changed, 24 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/usb/usb-xhci.txt

diff --git a/Documentation/devicetree/bindings/usb/usb-xhci.txt b/Documentation/devicetree/bindings/usb/usb-xhci.txt
new file mode 100644
index 0000000..5752df0
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/usb-xhci.txt
@@ -0,0 +1,14 @@
+USB xHCI controllers
+
+Required properties:
+  - compatible: should be "xhci-platform".
+  - reg: should contain address and length of the standard XHCI
+    register set for the device.
+  - interrupts: one XHCI interrupt should be described here.
+
+Example:
+	usb@f0931000 {
+		compatible = "xhci-platform";
+		reg = <0xf0931000 0x8c8>;
+		interrupts = <0x0 0x4e 0x0>;
+	};
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index d718134..fbc11dc 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -14,6 +14,7 @@
 #include <linux/platform_device.h>
 #include <linux/module.h>
 #include <linux/slab.h>
+#include <linux/of.h>
 
 #include "xhci.h"
 
@@ -212,11 +213,20 @@ static int xhci_plat_remove(struct platform_device *dev)
 	return 0;
 }
 
+#ifdef CONFIG_OF
+static const struct of_device_id usb_xhci_of_match[] = {
+	{ .compatible = "xhci-platform" },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, usb_xhci_of_match);
+#endif
+
 static struct platform_driver usb_xhci_driver = {
 	.probe	= xhci_plat_probe,
 	.remove	= xhci_plat_remove,
 	.driver	= {
 		.name = "xhci-hcd",
+		.of_match_table = of_match_ptr(usb_xhci_of_match),
 	},
 };
 MODULE_ALIAS("platform:xhci-hcd");
-- 
1.7.6


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