arm64: dts: imx8mm-kontron: Fix polarity of reg_rst_eth2

The regulator reg_rst_eth2 should keep the reset signal of the USB ethernet
adapter deasserted anytime. Fix the polarity and mark it as always-on.

Anyway, using the regulator is only a workaround for the missing support of
specifying a reset GPIO for USB devices in a generic way. As we don't
have a solution for this at the moment, at least fix the current
workaround.

Fixes: 8668d8b2e67f ("arm64: dts: Add the Kontron i.MX8M Mini SoMs and baseboards")
Cc: stable@vger.kernel.org
Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts
index d17abb5..3912ac2 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts
@@ -70,7 +70,9 @@
                regulator-name = "rst-usb-eth2";
                pinctrl-names = "default";
                pinctrl-0 = <&pinctrl_usb_eth2>;
-               gpio = <&gpio3 2 GPIO_ACTIVE_LOW>;
+               gpio = <&gpio3 2 GPIO_ACTIVE_HIGH>;
+               enable-active-high;
+               regulator-always-on;
        };
 
        reg_vdd_5v: regulator-5v {