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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@gmail.com>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
This commit is contained in:
Al Cooper 2013-07-25 19:04:44 -04:00 • committed by Sarah Sharp
parent 5b146f7e01
commit 1fe6c4524f
2 changed files with 24 additions and 0 deletions
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14
Documentation/devicetree/bindings/usb/usb-xhci.txt Normal file
View file

@ -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>;
};

10
drivers/usb/host/xhci-plat.c
View file

@ -14,6 +14,7 @@
#include <linux/platform_device.h> #include <linux/platform_device.h>
#include <linux/module.h> #include <linux/module.h>
#include <linux/slab.h> #include <linux/slab.h>
#include <linux/of.h>
#include "xhci.h" #include "xhci.h"
@ -211,12 +212,21 @@ static const struct dev_pm_ops xhci_plat_pm_ops = {
#define DEV_PM_OPS NULL #define DEV_PM_OPS NULL
#endif /* CONFIG_PM */ #endif /* CONFIG_PM */
#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 = { static struct platform_driver usb_xhci_driver = {
.probe = xhci_plat_probe, .probe = xhci_plat_probe,
.remove = xhci_plat_remove, .remove = xhci_plat_remove,
.driver = { .driver = {
.name = "xhci-hcd", .name = "xhci-hcd",
.pm = DEV_PM_OPS, .pm = DEV_PM_OPS,
.of_match_table = of_match_ptr(usb_xhci_of_match),
}, },
}; };
MODULE_ALIAS("platform:xhci-hcd"); MODULE_ALIAS("platform:xhci-hcd");