From a1a4caf41ed8154c4e7b75b4e12c1a7d851e2137 Mon Sep 17 00:00:00 2001 From: Srinivas Kandagatla Date: Thu, 21 Aug 2014 07:45:10 +0100 Subject: [PATCH] usb: phy: msm: Make phy_reset clk and reset line optional. This patch makes the phy reset clk and reset line optional as this clk is not available on boards like IFC6410 with APQ8064. phy-reset clk is only used as argument to the mach level callbacks, so this patch adds condition before clk_get calls so that the driver wouldn't fail on SOCs which do not have this support. Signed-off-by: Srinivas Kandagatla Signed-off-by: Felipe Balbi --- drivers/usb/phy/phy-msm-usb.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c index df8e1ba56509..45b95946500f 100644 --- a/drivers/usb/phy/phy-msm-usb.c +++ b/drivers/usb/phy/phy-msm-usb.c @@ -281,7 +281,7 @@ static int msm_otg_phy_clk_reset(struct msm_otg *motg) { int ret = 0; - if (motg->pdata->phy_clk_reset && motg->phy_reset_clk) + if (motg->pdata->phy_clk_reset) ret = motg->pdata->phy_clk_reset(motg->phy_reset_clk); else if (motg->phy_rst) ret = reset_control_reset(motg->phy_rst); @@ -1554,11 +1554,14 @@ static int msm_otg_probe(struct platform_device *pdev) phy = &motg->phy; phy->dev = &pdev->dev; - motg->phy_reset_clk = devm_clk_get(&pdev->dev, + if (motg->pdata->phy_clk_reset) { + motg->phy_reset_clk = devm_clk_get(&pdev->dev, np ? "phy" : "usb_phy_clk"); - if (IS_ERR(motg->phy_reset_clk)) { - dev_err(&pdev->dev, "failed to get usb_phy_clk\n"); - motg->phy_reset_clk = NULL; + + if (IS_ERR(motg->phy_reset_clk)) { + dev_err(&pdev->dev, "failed to get usb_phy_clk\n"); + return PTR_ERR(motg->phy_reset_clk); + } } motg->clk = devm_clk_get(&pdev->dev, np ? "core" : "usb_hs_clk"); -- 2.39.5