usb: phy: phy-mxs-usb: add power down and disable wakeup for .shutdown

When we shut down the PHY, we need to power down all PHY's functions
as well as disable wakeup, it is the opposite operation we do at .init.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/usb/phy/phy-mxs-usb.c b/drivers/usb/phy/phy-mxs-usb.c
index b9589f663683..eaf94b036571 100644
--- a/drivers/usb/phy/phy-mxs-usb.c
+++ b/drivers/usb/phy/phy-mxs-usb.c
@@ -293,6 +293,17 @@ 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);