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@xxxxxxxxxxx>
---
drivers/usb/renesas_usbhs/common.c | 43 ++++++++++++++++++++++++++++++++++++
1 file changed, 43 insertions(+)
diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c
index 1b9bf8d..845a889 100644
--- a/drivers/usb/renesas_usbhs/common.c
+++ b/drivers/usb/renesas_usbhs/common.c
@@ -18,6 +18,7 @@
#include <linux/gpio.h>
#include <linux/io.h>
#include <linux/module.h>
+#include <linux/of_gpio.h>
#include <linux/pm_runtime.h>
#include <linux/slab.h>
#include <linux/sysfs.h>
@@ -438,6 +439,34 @@ static int usbhsc_drvcllbck_notify_hotplug(struct platform_device *pdev)
/*
* platform functions
*/
+static struct renesas_usbhs_platform_info *usbhs_parse_dt(struct device *dev)
+{
+ struct renesas_usbhs_platform_info *info;
+ struct renesas_usbhs_driver_param *dparam;
+ u32 tmp;
+ int gpio;
+
+ info = devm_kzalloc(dev, sizeof(*info), GFP_KERNEL);
+ if (!info)
+ return NULL;
+
+ dparam = &info->driver_param;
+
+ if (of_device_is_compatible(dev->of_node, "renesas,usbhs-r8a7790"))
+ dparam->type = USBHS_TYPE_R8A7790;
+
+ if (of_device_is_compatible(dev->of_node, "renesas,usbhs-r8a7791"))
+ dparam->type = USBHS_TYPE_R8A7791;
+
+ if (!of_property_read_u32(dev->of_node, "buswait_bwait", &tmp))
+ dparam->buswait_bwait = tmp;
+ gpio = of_get_named_gpio_flags(dev->of_node, "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 +475,10 @@ 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");
@@ -685,10 +718,20 @@ static const struct dev_pm_ops usbhsc_pm_ops = {
.runtime_resume = usbhsc_runtime_nop,
};
+#ifdef CONFIG_OF
+static const struct of_device_id usbhs_of_match[] = {
+ { .compatible = "renesas,usbhs-r8a7790"},
+ { .compatible = "renesas,usbhs-r8a7791"},
+ { },
+};
+MODULE_DEVICE_TABLE(of, usbhs_of_match);
+#endif
+
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,
--
1.7.9.5
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