USB: ehci-s5p: add clock gating to suspend/resume

This patch adds clock gating to suspend and resume functions.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-s5p.c
index f098e2a291a01e32b4481d422fd502921a39f066..c474cec064e4d04af41cdbebabb7b7e826a7a971 100644 (file)
--- a/drivers/usb/host/ehci-s5p.c
+++ b/drivers/usb/host/ehci-s5p.c
@@ -232,6 +232,8 @@ static int s5p_ehci_suspend(struct device *dev)
        if (pdata && pdata->phy_exit)
                pdata->phy_exit(pdev, S5P_USB_PHY_HOST);
 
+       clk_disable(s5p_ehci->clk);
+
        return rc;
 }
 
@@ -243,6 +245,8 @@ static int s5p_ehci_resume(struct device *dev)
        struct platform_device *pdev = to_platform_device(dev);
        struct s5p_ehci_platdata *pdata = pdev->dev.platform_data;
 
+       clk_enable(s5p_ehci->clk);
+
        if (pdata && pdata->phy_init)
                pdata->phy_init(pdev, S5P_USB_PHY_HOST);