arm64: dts: rockchip: enable internal pull-up for Q7_THRM# on RK3399 Puma

Q7_THRM# pin is connected to a diode on the module which is used
as a level shifter, and the pin have a pull-down enabled by
default. We need to configure it to internal pull-up, other-
wise whenever the pin is configured as INPUT and we try to
control it externally the value will always remain zero.

Signed-off-by: Iskander Amara <[email protected]>
Fixes: 2c66fc3 ("arm64: dts: rockchip: add RK3399-Q7 (Puma) SoM")
Reviewed-by: Quentin Schulz <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Heiko Stuebner <[email protected]>

Author: Iskander Amara

arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi

@@ -426,6 +426,16 @@
 };
 
 &pinctrl {
+	pinctrl-names = "default";
+	pinctrl-0 = <&q7_thermal_pin>;
+
+	gpios {
+		q7_thermal_pin: q7-thermal-pin {
+			rockchip,pins =
+				<0 RK_PA3 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+	};
+
 	i2c8 {
 		i2c8_xfer_a: i2c8-xfer {
 			rockchip,pins =