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usb: renesas_usbhs: Add device tree support for R-Car H2 and M2

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This driver supports other SoCs, but they need boards/Soc depend code.
So, this patch adds device tree support for R-Car H2 and M2 initially.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Yoshihiro Shimoda 2014-09-03 14:25:56 +09:00 committed by Felipe Balbi
parent 630a84a181
commit b854100eda
1 changed files with 44 additions and 0 deletions
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44
drivers/usb/renesas_usbhs/common.c
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@ -18,6 +18,8 @@
#include <linux/gpio.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/of_gpio.h>
#include <linux/pm_runtime.h>
#include <linux/slab.h>
#include <linux/sysfs.h>
@ -438,6 +440,43 @@ static int usbhsc_drvcllbck_notify_hotplug(struct platform_device *pdev)
/*
* platform functions
*/
static const struct of_device_id usbhs_of_match[] = {
{
.compatible = "renesas,usbhs-r8a7790",
.data = (void *)USBHS_TYPE_R8A7790,
},
{
.compatible = "renesas,usbhs-r8a7791",
.data = (void *)USBHS_TYPE_R8A7791,
},
{ },
};
MODULE_DEVICE_TABLE(of, usbhs_of_match);
static struct renesas_usbhs_platform_info *usbhs_parse_dt(struct device *dev)
{
struct renesas_usbhs_platform_info *info;
struct renesas_usbhs_driver_param *dparam;
const struct of_device_id *of_id = of_match_device(usbhs_of_match, dev);
u32 tmp;
int gpio;
info = devm_kzalloc(dev, sizeof(*info), GFP_KERNEL);
if (!info)
return NULL;
dparam = &info->driver_param;
dparam->type = of_id ? (u32)of_id->data : 0;
if (!of_property_read_u32(dev->of_node, "renesas,buswait", &tmp))
dparam->buswait_bwait = tmp;
gpio = of_get_named_gpio_flags(dev->of_node, "renesas,enable-gpio", 0,
NULL);
if (gpio > 0)
dparam->enable_gpio = gpio;
return info;
}
static int usbhs_probe(struct platform_device *pdev)
{
struct renesas_usbhs_platform_info *info = dev_get_platdata(&pdev->dev);
@ -446,6 +485,10 @@ static int usbhs_probe(struct platform_device *pdev)
struct resource *res, *irq_res;
int ret;
/* check device node */
if (pdev->dev.of_node)
info = pdev->dev.platform_data = usbhs_parse_dt(&pdev->dev);
/* check platform information */
if (!info) {
dev_err(&pdev->dev, "no platform information\n");
@ -689,6 +732,7 @@ static struct platform_driver renesas_usbhs_driver = {
.driver = {
.name = "renesas_usbhs",
.pm = &usbhsc_pm_ops,
.of_match_table = of_match_ptr(usbhs_of_match),
},
.probe = usbhs_probe,
.remove = usbhs_remove,