Re: [PATCH v3 2/2] usb: renesas_usbhs: Add device tree support for R-Car H2 and M2

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hello.

On 09/30/2014 01:51 PM, Yoshihiro Shimoda wrote:

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>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
---
   drivers/usb/renesas_usbhs/common.c |   44 ++++++++++++++++++++++++++++++++++++
   1 file changed, 44 insertions(+)

diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c
index 1b9bf8d..b3b6813 100644
--- a/drivers/usb/renesas_usbhs/common.c
+++ b/drivers/usb/renesas_usbhs/common.c
[...]
@@ -438,6 +440,43 @@ static int usbhsc_drvcllbck_notify_hotplug(struct platform_device *pdev)
[...]
+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;

     I don't see where you parse the optional "phy" property. It should exist
for the Lager and Koelsch boards you target.

Since I wrote 'phy-names: must be "usb"' in the document,
I intend to use a fixed property for "phy" driver like the following:

	phy = phy_get(&pdev->dev, "usb");

Is this a bad code?

   Seems OK.

About using the phy driver in renesas_usbhs driver, I intend to modify
the drivers/usb/renesas_usbhs/rcar.c.

Hm, it slready supports 'struct usb_phy'. Also PHYs are not limited to R-Car Gen2 SoCs...

Best regards,
Yoshihiro Shimoda

WBR, Sergei

--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux Media]     [Linux Input]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Old Linux USB Devel Archive]

  Powered by Linux