[PATCH] phy: phy-brcm-usb-init: Fix power down USB 3.0 PHY when XHCI reenabled

[Jaedon Shin]

Unset is required to enable USB 3.0 PHY when XHCI reenabled in response
to setting PHY3_IDDQ_OVERRIDE in uninit().

Fixes: cd6f769fdea7 ("phy: phy-brcm-usb-init: Power down USB 3.0 PHY when XHCI 
disabled")
Signed-off-by: Jaedon Shin <jaedon.s...@gmail.com>
---
 drivers/phy/broadcom/phy-brcm-usb-init.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/phy/broadcom/phy-brcm-usb-init.c 
b/drivers/phy/broadcom/phy-brcm-usb-init.c
index 1b7febc43da9..29d2c3b1913a 100644
--- a/drivers/phy/broadcom/phy-brcm-usb-init.c
+++ b/drivers/phy/broadcom/phy-brcm-usb-init.c
@@ -962,6 +962,10 @@ void brcm_usb_init_xhci(struct brcm_usb_init_params 
*params)
 {
        void __iomem *ctrl = params->ctrl_regs;
 
+       USB_CTRL_UNSET(ctrl, USB30_PCTL, PHY3_IDDQ_OVERRIDE);
+       /* 1 millisecond - for USB clocks to settle down */
+       usleep_range(1000, 2000);
+
        if (BRCM_ID(params->family_id) == 0x7366) {
                /*
                 * The PHY3_SOFT_RESETB bits default to the wrong state.
-- 
2.17.1