usb: cdns3: gadget: Fix full-speed mode

We need to disable USB3 PHY for full-speed mode else
gadget mode is broken.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Reviewed-by: Peter Chen <peter.chen@nxp.com>
Link: https://lore.kernel.org/r/20191007121601.25996-3-rogerq@ti.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/cdns3/gadget.c b/drivers/usb/cdns3/gadget.c
index 228cdc4..1575367 100644 (file)
--- a/drivers/usb/cdns3/gadget.c
+++ b/drivers/usb/cdns3/gadget.c
@@ -2571,6 +2571,7 @@ static int cdns3_gadget_start(struct cdns3 *cdns)
        switch (max_speed) {
        case USB_SPEED_FULL:
                writel(USB_CONF_SFORCE_FS, &priv_dev->regs->usb_conf);
+               writel(USB_CONF_USB3DIS, &priv_dev->regs->usb_conf);
                break;
        case USB_SPEED_HIGH:
                writel(USB_CONF_USB3DIS, &priv_dev->regs->usb_conf);