From 0c4c8bbbfdfc61c2ab2cc1026b5a05ae52396c93 Mon Sep 17 00:00:00 2001 From: Kishon Vijay Abraham I Date: Fri, 25 Jan 2013 08:21:49 +0530 Subject: [PATCH] usb: phy: omap-usb2: enable 960Mhz clock for omap5 "usb_otg_ss_refclk960m" is needed for usb2 phy present in omap5. For omap4, the clk_get of this clock will fail since it does not have this clock. Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Felipe Balbi --- drivers/usb/phy/omap-usb2.c | 28 +++++++++++++++++++++++++++- 1 file changed, 27 insertions(+), 1 deletion(-) diff --git a/drivers/usb/phy/omap-usb2.c b/drivers/usb/phy/omap-usb2.c index 0cd88ac..844ab68 100644 --- a/drivers/usb/phy/omap-usb2.c +++ b/drivers/usb/phy/omap-usb2.c @@ -166,6 +166,12 @@ static int omap_usb2_probe(struct platform_device *pdev) } clk_prepare(phy->wkupclk); + phy->optclk = devm_clk_get(phy->dev, "usb_otg_ss_refclk960m"); + if (IS_ERR(phy->optclk)) + dev_vdbg(&pdev->dev, "unable to get refclk960m\n"); + else + clk_prepare(phy->optclk); + usb_add_phy_dev(&phy->phy); platform_set_drvdata(pdev, phy); @@ -180,6 +186,8 @@ static int omap_usb2_remove(struct platform_device *pdev) struct omap_usb *phy = platform_get_drvdata(pdev); clk_unprepare(phy->wkupclk); + if (!IS_ERR(phy->optclk)) + clk_unprepare(phy->optclk); usb_remove_phy(&phy->phy); return 0; @@ -193,6 +201,8 @@ static int omap_usb2_runtime_suspend(struct device *dev) struct omap_usb *phy = platform_get_drvdata(pdev); clk_disable(phy->wkupclk); + if (!IS_ERR(phy->optclk)) + clk_disable(phy->optclk); return 0; } @@ -204,9 +214,25 @@ static int omap_usb2_runtime_resume(struct device *dev) struct omap_usb *phy = platform_get_drvdata(pdev); ret = clk_enable(phy->wkupclk); - if (ret < 0) + if (ret < 0) { dev_err(phy->dev, "Failed to enable wkupclk %d\n", ret); + goto err0; + } + + if (!IS_ERR(phy->optclk)) { + ret = clk_enable(phy->optclk); + if (ret < 0) { + dev_err(phy->dev, "Failed to enable optclk %d\n", ret); + goto err1; + } + } + + return 0; + +err1: + clk_disable(phy->wkupclk); +err0: return ret; } -- 2.7.4