"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 <kis...@ti.com> --- drivers/usb/phy/omap-usb2.c | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) diff --git a/drivers/usb/phy/omap-usb2.c b/drivers/usb/phy/omap-usb2.c index d36c282..5512207 100644 --- a/drivers/usb/phy/omap-usb2.c +++ b/drivers/usb/phy/omap-usb2.c @@ -190,6 +190,12 @@ static int __devinit 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(&phy->phy, USB_PHY_TYPE_USB2); platform_set_drvdata(pdev, phy); @@ -204,6 +210,7 @@ static int __devexit omap_usb2_remove(struct platform_device *pdev) struct omap_usb *phy = platform_get_drvdata(pdev); clk_unprepare(phy->wkupclk); + clk_unprepare(phy->optclk); usb_remove_phy(&phy->phy); return 0; @@ -217,6 +224,7 @@ static int omap_usb2_runtime_suspend(struct device *dev) struct omap_usb *phy = platform_get_drvdata(pdev); clk_disable(phy->wkupclk); + clk_disable(phy->optclk); return 0; } @@ -228,10 +236,16 @@ 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); + return ret; + } - return ret; + ret = clk_enable(phy->optclk); + if (ret < 0) + dev_vdbg(phy->dev, "Failed to enable optclk %d\n", ret); + + return 0; } static const struct dev_pm_ops omap_usb2_pm_ops = { -- 1.7.9.5 _______________________________________________ devicetree-discuss mailing list devicetree-discuss@lists.ozlabs.org https://lists.ozlabs.org/listinfo/devicetree-discuss