ENGR00320439-10 usb: phy: mxs: refine phy shutdown

Complete mxs phy shutdown sequence including disable wakeup and
auto bits, power down phy and clock gate.

Signed-off-by: Li Jun <b47624@freescale.com>

1 files changed, 11 insertions, 1 deletions

diff --git a/drivers/usb/phy/phy-mxs-usb.c b/drivers/usb/phy/phy-mxs-usb.c
index 56602e905dc0..8555ef3c7d3b 100644
--- a/drivers/usb/phy/phy-mxs-usb.c
+++ b/drivers/usb/phy/phy-mxs-usb.c
@@ -316,7 +316,17 @@ static int mxs_phy_init(struct usb_phy *phy)
 static void mxs_phy_shutdown(struct usb_phy *phy)
 {
         struct mxs_phy *mxs_phy = to_mxs_phy(phy);
-
+        u32 value = BM_USBPHY_CTRL_ENVBUSCHG_WKUP |
+                        BM_USBPHY_CTRL_ENDPDMCHG_WKUP |
+                        BM_USBPHY_CTRL_ENIDCHG_WKUP |
+                        BM_USBPHY_CTRL_ENAUTOSET_USBCLKS |
+                        BM_USBPHY_CTRL_ENAUTOCLR_USBCLKGATE |
+                        BM_USBPHY_CTRL_ENAUTOCLR_PHY_PWD |
+                        BM_USBPHY_CTRL_ENAUTOCLR_CLKGATE |
+                        BM_USBPHY_CTRL_ENAUTO_PWRON_PLL;
+
+        writel(value, phy->io_priv + HW_USBPHY_CTRL_CLR);
+        writel(0xffffffff, phy->io_priv + HW_USBPHY_PWD);
         writel(BM_USBPHY_CTRL_CLKGATE,
                phy->io_priv + HW_USBPHY_CTRL_SET);