ARM: dts: imx7d-smegw01: Fix USB host over-current polarity

Currently, when resetting the USB modem via AT commands, the modem is
no longer re-connected.

This problem is caused by the incorrect description of the USB_OTG2_OC
pad. It should have pull-up enabled, hysteresis enabled and the
property 'over-current-active-low' should be passed.

With this change, the USB modem can be successfully re-connected
after a reset.

Cc: stable@vger.kernel.org
Fixes: 9ac0ae97e349 ("ARM: dts: imx7d-smegw01: Add support for i.MX7D SMEGW01 board")
Signed-off-by: Fabio Estevam <festevam@denx.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm/boot/dts/imx7d-smegw01.dts b/arch/arm/boot/dts/imx7d-smegw01.dts
index 546268b..c0f00f5 100644 (file)
--- a/arch/arm/boot/dts/imx7d-smegw01.dts
+++ b/arch/arm/boot/dts/imx7d-smegw01.dts
@@ -198,6 +198,7 @@
 &usbotg2 {
        pinctrl-names = "default";
        pinctrl-0 = <&pinctrl_usbotg2>;
+       over-current-active-low;
        dr_mode = "host";
        status = "okay";
 };
@@ -374,7 +375,7 @@
 
        pinctrl_usbotg2: usbotg2grp {
                fsl,pins = <
-                       MX7D_PAD_UART3_RTS_B__USB_OTG2_OC       0x04
+                       MX7D_PAD_UART3_RTS_B__USB_OTG2_OC       0x5c
                >;
        };