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Commit 6d569251 authored by Iskander Amara's avatar Iskander Amara Committed by Greg Kroah-Hartman
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arm64: dts: rockchip: enable internal pull-up for Q7_THRM# on RK3399 Puma 



commit 0ac417b8f124427c90ec8c2ef4f632b821d924cc upstream.

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: default avatarIskander Amara <iskander.amara@theobroma-systems.com>
Fixes: 2c66fc34 ("arm64: dts: rockchip: add RK3399-Q7 (Puma) SoM")
Reviewed-by: default avatarQuentin Schulz <quentin.schulz@theobroma-systems.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240308085243.69903-1-iskander.amara@theobroma-systems.com


Signed-off-by: default avatarHeiko Stuebner <heiko@sntech.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 689efe22

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

+10 −0
Original line number Diff line number Diff line
@@ -432,6 +432,16 @@ 
};



&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 =