It needs to call set_suspend during USB suspend/resume Signed-off-by: Peter Chen <peter.chen@xxxxxxxxxxxxx> --- drivers/usb/otg/mxs-phy.c | 20 ++++++++++++++++++++ 1 files changed, 20 insertions(+), 0 deletions(-) diff --git a/drivers/usb/otg/mxs-phy.c b/drivers/usb/otg/mxs-phy.c index 7dca384..40643c9 100644 --- a/drivers/usb/otg/mxs-phy.c +++ b/drivers/usb/otg/mxs-phy.c @@ -79,6 +79,25 @@ static void mxs_phy_shutdown(struct usb_phy *phy) clk_disable_unprepare(mxs_phy->clk); } +static int mxs_phy_suspend(struct usb_phy *x, int suspend) +{ + struct mxs_phy *mxs_phy = to_mxs_phy(x); + + if (suspend) { + writel_relaxed(0xffffffff, x->io_priv + HW_USBPHY_PWD); + writel_relaxed(BM_USBPHY_CTRL_CLKGATE, + x->io_priv + HW_USBPHY_CTRL_SET); + clk_disable_unprepare(mxs_phy->clk); + } else { + clk_prepare_enable(mxs_phy->clk); + writel_relaxed(BM_USBPHY_CTRL_CLKGATE, + x->io_priv + HW_USBPHY_CTRL_CLR); + writel_relaxed(0, x->io_priv + HW_USBPHY_PWD); + } + + return 0; +} + static int mxs_phy_on_connect(struct usb_phy *phy, enum usb_device_speed speed) { @@ -141,6 +160,7 @@ static int mxs_phy_probe(struct platform_device *pdev) mxs_phy->phy.label = DRIVER_NAME; mxs_phy->phy.init = mxs_phy_init; mxs_phy->phy.shutdown = mxs_phy_shutdown; + mxs_phy->phy.set_suspend = mxs_phy_suspend; mxs_phy->phy.notify_connect = mxs_phy_on_connect; mxs_phy->phy.notify_disconnect = mxs_phy_on_disconnect; -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html