Re: [PATCH v2 1/2] usb: chipidea: usbmisc: Add support for i.MX27/i.MX31 CPUs

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

 





On Tuesday, November 26, 2013 11:36 PM, Alexander Shiyan wrote:
This adds i.MX27 and i.MX31 as the next user of the usbmisc driver.

Signed-off-by: Alexander Shiyan<shc_work@xxxxxxx>
---
  drivers/usb/chipidea/usbmisc_imx.c | 42 ++++++++++++++++++++++++++++++++++++++
  1 file changed, 42 insertions(+)

diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c
index 8a1094b..4381c5a6 100644
--- a/drivers/usb/chipidea/usbmisc_imx.c
+++ b/drivers/usb/chipidea/usbmisc_imx.c
@@ -21,6 +21,10 @@
  #define MX25_USB_PHY_CTRL_OFFSET	0x08
  #define MX25_BM_EXTERNAL_VBUS_DIVIDER	BIT(23)

+#define MX27_H1_PM_BIT			BIT(8)
+#define MX27_H2_PM_BIT			BIT(16)
+#define MX27_OTG_PM_BIT			BIT(24)
+
  #define MX53_USB_OTG_PHY_CTRL_0_OFFSET	0x08
  #define MX53_USB_UH2_CTRL_OFFSET	0x14
  #define MX53_USB_UH3_CTRL_OFFSET	0x18
@@ -68,6 +72,36 @@ static int usbmisc_imx25_post(struct imx_usbmisc_data *data)
  	return 0;
  }

+static int usbmisc_imx27_init(struct imx_usbmisc_data *data)
+{
+	unsigned long flags;
+	u32 val;
+
+	switch (data->index) {
+	case 0:
+		val = MX27_OTG_PM_BIT;
+		break;
+	case 1:
+		val = MX27_H1_PM_BIT;
+		break;
+	case 2:
+		val = MX27_H2_PM_BIT;
+		break;
+	default:
+		return -EINVAL;
+	};
+
+	spin_lock_irqsave(&usbmisc->lock, flags);
+	if (data->disable_oc)
+		val = readl(usbmisc->base) | val;
+	else
+		val = readl(usbmisc->base)&  ~val;
+	writel(val, usbmisc->base);
+	spin_unlock_irqrestore(&usbmisc->lock, flags);
+
+	return 0;
+}
+
  static int usbmisc_imx53_init(struct imx_usbmisc_data *data)
  {
  	void __iomem *reg = NULL;
@@ -128,6 +162,10 @@ static const struct usbmisc_ops imx25_usbmisc_ops = {
  	.post = usbmisc_imx25_post,
  };

+static const struct usbmisc_ops imx27_usbmisc_ops = {
+	.init = usbmisc_imx27_init,
+};
+
  static const struct usbmisc_ops imx53_usbmisc_ops = {
  	.init = usbmisc_imx53_init,
  };
@@ -162,6 +200,10 @@ static const struct of_device_id usbmisc_imx_dt_ids[] = {
  		.data =&imx25_usbmisc_ops,
  	},
  	{
+		.compatible = "fsl,imx27-usbmisc",
+		.data =&imx27_usbmisc_ops,
+	},
+	{
  		.compatible = "fsl,imx53-usbmisc",
  		.data =&imx53_usbmisc_ops,
  	},

Tested and works fine.

Acked-by: Chris Ruehl <chris.ruehl@xxxxxxxxxxxx>

Regards
Chris
--
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