Re: [PATCH v4 2/3] ata: ahci_platform: Manage SATA PHY

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On 09-01-2014 14:56, Roger Quadros wrote:

From: Balaji T K <balajitk@xxxxxx>

Some platforms have a PHY hooked up to the
SATA controller. The PHY needs to be initialized
and powered up for SATA to work. We do that
using the PHY framework.

[Roger Q] Cleaned up.

CC: Tejun Heo <tj@xxxxxxxxxx>
Signed-off-by: Balaji T K <balajitk@xxxxxx>
Signed-off-by: Roger Quadros <rogerq@xxxxxx>
[...]

diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c
index d5ced13..b476642 100644
--- a/drivers/ata/ahci_platform.c
+++ b/drivers/ata/ahci_platform.c
@@ -142,6 +142,39 @@ static int ahci_probe(struct platform_device *pdev)
  		}
  	}

+	hpriv->phy = devm_phy_get(dev, "sata-phy");
+	if (IS_ERR(hpriv->phy)) {
+		rc = PTR_ERR(hpriv->phy);
+		switch (rc) {
+		case -ENODEV:
+		case -ENOSYS:
+			/* continue normally */
+			hpriv->phy = NULL;
+			break;
+
+		case -EPROBE_DEFER:
+			goto disable_unprepare_clk;
+			break;

   Well, well, *break* after *goto*? :-)

+
+		default:
+			dev_err(dev, "couldn't get sata-phy\n");
+			goto disable_unprepare_clk;
+			break;

   Again?

WBR, Sergei

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