Commit 28cce954 authored by Geert Uytterhoeven's avatar Geert Uytterhoeven
Browse files

ARM: dts: lager: Configure pull-up for SOFT_SW GPIO keys 



The GPIO pins connected to the 4 Software Switches (SW2) do not have
external pull-up resistors, but rely on internal pull-ups being enabled.
Fortunately this is satisfied by the initial state of these pins.

Make this explicit by enabling bias-pull-up, to remove the dependency on
initial state and/or boot loader configuration.

Signed-off-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: default avatarWolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: default avatarWolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/9fae3c0c2c0000f6b43c9ce87fe64a594b30a7da.1619785905.git.geert+renesas@glider.be
parent 659b3820

arch/arm/boot/dts/r8a7790-lager.dts

+8 −0
Original line number Diff line number Diff line
@@ -81,6 +81,9 @@ lbsc { 
	keyboard {

		compatible = "gpio-keys";



		pinctrl-0 = <&keyboard_pins>;

		pinctrl-names = "default";



		one {

			linux,code = <KEY_1>;

			label = "SW2-1";
@@ -659,6 +662,11 @@ sound_clk_pins: sound_clk { 
		groups = "audio_clk_a";

		function = "audio_clk";

	};



	keyboard_pins: keyboard {

		pins = "GP_1_14", "GP_1_24", "GP_1_26", "GP_1_28";

		bias-pull-up;

	};

};



&ether {