Commit b854100e authored by Yoshihiro Shimoda's avatar Yoshihiro Shimoda Committed by Felipe Balbi
Browse files

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



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: default avatarYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: default avatarKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 630a84a1

drivers/usb/renesas_usbhs/common.c

+44 −0
Original line number Diff line number Diff line
@@ -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,