Re: [PATCH] phy-rcar-gen2-usb: add device tree support

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On 27/02/14 00:12, Sergei Shtylyov wrote:
Add support of the device tree probing for the Renesas R-Car generation 2 SoCs
documenting the device tree binding as necessary.

You've popped in some fixes for the driver probe in here as well.

Could you do the fixes as a patch and send those before the devicetree
code is done?

+
  static int rcar_gen2_usb_phy_probe(struct platform_device *pdev)
  {
  	struct device *dev = &pdev->dev;
+	struct device_node *np = dev->of_node;
  	struct rcar_gen2_phy_platform_data *pdata;
  	struct rcar_gen2_usb_phy_priv *priv;
  	struct resource *res;
@@ -177,13 +210,19 @@ static int rcar_gen2_usb_phy_probe(struc
  	struct clk *clk;
  	int retval;

-	pdata = dev_get_platdata(dev);
+	if (np)
+		pdata = rcar_gen2_usb_phy_parse_dt(dev);
+	else
+		pdata = dev_get_platdata(dev);
  	if (!pdata) {
  		dev_err(dev, "No platform data\n");
  		return -EINVAL;
  	}

-	clk = devm_clk_get(dev, "usbhs");
+	if (np)
+		clk = of_clk_get_by_name(np, "usbhs");
+	else
+		clk = clk_get(dev, "usbhs");

Can be removed, just add a clock-name of usbhs in the device node.

  	if (IS_ERR(clk)) {
  		dev_err(dev, "Can't get the clock\n");
  		return PTR_ERR(clk);
@@ -191,13 +230,16 @@ static int rcar_gen2_usb_phy_probe(struc

  	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
  	base = devm_ioremap_resource(dev, res);
-	if (IS_ERR(base))
-		return PTR_ERR(base);
+	if (IS_ERR(base)) {
+		retval = PTR_ERR(base);
+		goto error;
+	}

  	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
  	if (!priv) {
  		dev_err(dev, "Memory allocation failed\n");
-		return -ENOMEM;
+		retval = -ENOMEM;
+		goto error;
  	}

Probably should be separate patch to fix probe issues.



  	spin_lock_init(&priv->lock);
@@ -216,12 +258,16 @@ static int rcar_gen2_usb_phy_probe(struc
  	retval = usb_add_phy_dev(&priv->phy);
  	if (retval < 0) {
  		dev_err(dev, "Failed to add USB phy\n");
-		return retval;
+		goto error;
  	}

  	platform_set_drvdata(pdev, priv);

  	return retval;
+
+error:
+	clk_put(clk);
+	return retval;
  }

Again, should have been rolled into fix patch.



--
Ben Dooks				http://www.codethink.co.uk/
Senior Engineer				Codethink - Providing Genius
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