From 3287a7a8feda71da74776fcc5d2565863d3aee06 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 3 Mar 2021 14:29:41 +0100 Subject: [PATCH] ARM: dts: koelsch: Configure pull-up for SOFT_SW GPIO keys MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The GPIO pins connected to the 4 Software Switches ("SOFT_SW", 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: Geert Uytterhoeven Reviewed-by: Niklas Söderlund Link: https://lore.kernel.org/r/20210303132941.3938516-1-geert+renesas@glider.be --- arch/arm/boot/dts/r8a7791-koelsch.dts | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/arm/boot/dts/r8a7791-koelsch.dts b/arch/arm/boot/dts/r8a7791-koelsch.dts index e4dbf464c960..61e881bbbf6e 100644 --- a/arch/arm/boot/dts/r8a7791-koelsch.dts +++ b/arch/arm/boot/dts/r8a7791-koelsch.dts @@ -81,6 +81,9 @@ keyboard { compatible = "gpio-keys"; + pinctrl-0 = <&sw2_pins>; + pinctrl-names = "default"; + key-1 { gpios = <&gpio5 0 GPIO_ACTIVE_LOW>; linux,code = ; @@ -618,6 +621,11 @@ groups = "audio_clk_a"; function = "audio_clk"; }; + + sw2_pins: sw2 { + pins = "GP_5_0", "GP_5_1", "GP_5_2", "GP_5_3"; + bias-pull-up; + }; }; ðer { -- 2.34.1