ohci-nxp: Device tree support

This patch adds device tree support to ohci-nxp.c

Signed-off-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2 files changed, 26 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/usb/ohci-nxp.txt b/Documentation/devicetree/bindings/usb/ohci-nxp.txt
new file mode 100644
index 000000000000..b5c36319e634
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/ohci-nxp.txt
@@ -0,0 +1,16 @@
+* OHCI controller, NXP ohci-nxp variant
+
+Required properties:
+- compatible: must be "nxp,ohci-nxp"
+- reg: physical base address of the controller and length of memory mapped
+  region.
+- interrupts: The OHCI interrupt
+
+Example (LPC32xx):
+
+        ohci@31020000 {
+                compatible = "nxp,ohci-nxp";
+                reg = <0x31020000 0x300>;
+                interrupt-parent = <&mic>;
+                interrupts = <0x3b 0>;
+        };
diff --git a/drivers/usb/host/ohci-nxp.c b/drivers/usb/host/ohci-nxp.c
index 63261f7c2f79..bf542e7e2b1c 100644
--- a/drivers/usb/host/ohci-nxp.c
+++ b/drivers/usb/host/ohci-nxp.c
@@ -22,6 +22,7 @@
 #include <linux/clk.h>
 #include <linux/platform_device.h>
 #include <linux/i2c.h>
+#include <linux/of.h>
 
 #include <mach/hardware.h>
 #include <asm/mach-types.h>
@@ -525,10 +526,19 @@ static int usb_hcd_nxp_remove(struct platform_device *pdev)
 /* work with hotplug and coldplug */
 MODULE_ALIAS("platform:usb-ohci");
 
+#ifdef CONFIG_OF
+static const struct of_device_id usb_hcd_nxp_match[] = {
+        { .compatible = "nxp,ohci-nxp" },
+        {},
+};
+MODULE_DEVICE_TABLE(of, usb_hcd_nxp_match);
+#endif
+
 static struct platform_driver usb_hcd_nxp_driver = {
         .driver = {
                 .name = "usb-ohci",
                 .owner  = THIS_MODULE,
+                .of_match_table = of_match_ptr(usb_hcd_nxp_match),
         },
         .probe = usb_hcd_nxp_probe,
         .remove = usb_hcd_nxp_remove,