Re: [PATCH 3/3] usb: ohci-at91: use device managed clk retrieval

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Hello.

On 12/03/2013 05:07 PM, Boris BREZILLON wrote:

Replace clk_get calls by devm_clk_get calls.

Signed-off-by: Boris BREZILLON <b.brezillon@xxxxxxxxxxx>
Tested-by: Robert Nelson <robertcnelson@xxxxxxxxx>
---
  drivers/usb/host/ohci-at91.c |   32 ++++++++------------------------
  1 file changed, 8 insertions(+), 24 deletions(-)

diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index c406f1e..3652962 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -164,30 +164,30 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver,
  		goto err;
  	}

-	iclk = clk_get(&pdev->dev, "ohci_clk");
+	iclk = devm_clk_get(dev, "ohci_clk");
  	if (IS_ERR(iclk)) {
-		dev_err(&pdev->dev, "failed to get ohci_clk\n");
+		dev_err(dev, "failed to get ohci_clk\n");

   You changed this call...

  		retval = PTR_ERR(iclk);
  		goto err;
  	}
-	fclk = clk_get(&pdev->dev, "uhpck");
+	fclk = devm_clk_get(dev, "uhpck");
  	if (IS_ERR(fclk)) {
  		dev_err(&pdev->dev, "failed to get uhpck\n");

   ... but not this one.

  		retval = PTR_ERR(fclk);
-		goto err4;
+		goto err;
  	}
-	hclk = clk_get(&pdev->dev, "hclk");
+	hclk = devm_clk_get(dev, "hclk");
  	if (IS_ERR(hclk)) {
  		dev_err(&pdev->dev, "failed to get hclk\n");

... or this one. Actually, I think cganging these calls would be out of scope for this patch.

  		retval = PTR_ERR(hclk);
-		goto err5;
+		goto err;
  	}
  	if (IS_ENABLED(CONFIG_COMMON_CLK)) {
-		uclk = clk_get(&pdev->dev, "usb_clk");
+		uclk = devm_clk_get(&pdev->dev, "usb_clk");

   Hm, why not 'dev' like in all of the above?

  		if (IS_ERR(uclk)) {
  			dev_err(&pdev->dev, "failed to get uclk\n");
  			retval = PTR_ERR(uclk);
-			goto err6;
+			goto err;
  		}
  	}


WBR, Sergei


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