Add Device Tree match table to xhci-plat.c. Add DT bindings document.
Signed-off-by: Al Cooper <alcoop...@gmail.com>
---
Documentation/devicetree/bindings/usb/usb-xhci.txt | 14 ++++++++++++++
drivers/usb/host/xhci-plat.c | 10 ++++++++++
2 files changed, 24 insertions(+)
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..b88aee7
--- /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:
+ xhci@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..d547f24 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");
--
1.8.1.3
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