[PATCH 2/4] phy: qcom-qusb2: get optional clock by devm_clk_get_optional()

[Chunfeng Yun]

Use devm_clk_get_optional() to get optional clock

Cc: Andy Gross <andy.gr...@linaro.org>
Cc: David Brown <david.br...@linaro.org>
Cc: Vivek Gautam <vivek.gau...@codeaurora.org>
Signed-off-by: Chunfeng Yun <chunfeng....@mediatek.com>
---
 drivers/phy/qualcomm/phy-qcom-qusb2.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-qusb2.c 
b/drivers/phy/qualcomm/phy-qcom-qusb2.c
index 8fd7ce139772..1cbf1d6f28ce 100644
--- a/drivers/phy/qualcomm/phy-qcom-qusb2.c
+++ b/drivers/phy/qualcomm/phy-qcom-qusb2.c
@@ -822,14 +822,9 @@ static int qusb2_phy_probe(struct platform_device *pdev)
                return ret;
        }
 
-       qphy->iface_clk = devm_clk_get(dev, "iface");
-       if (IS_ERR(qphy->iface_clk)) {
-               ret = PTR_ERR(qphy->iface_clk);
-               if (ret == -EPROBE_DEFER)
-                       return ret;
-               qphy->iface_clk = NULL;
-               dev_dbg(dev, "failed to get iface clk, %d\n", ret);
-       }
+       qphy->iface_clk = devm_clk_get_optional(dev, "iface");
+       if (IS_ERR(qphy->iface_clk))
+               return PTR_ERR(qphy->iface_clk);
 
        qphy->phy_reset = devm_reset_control_get_by_index(&pdev->dev, 0);
        if (IS_ERR(qphy->phy_reset)) {
-- 
2.20.1