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| author | Amelie Delaunay <amelie.delaunay@st.com> | 2019-05-10 09:49:55 +0200 |
|---|---|---|
| committer | Alexandre Torgue <alexandre.torgue@st.com> | 2019-05-21 09:55:40 +0200 |
| commit | 2619646b52243b8984970ddc59eb59c0a56716db (patch) | |
| tree | 1637af181d92645c6eb1713d0b5ad007f229497d /arch/arm/boot/dts/stm32mp157c-ev1.dts | |
| parent | ARM: dts: stm32: add STMFX support on stm32mp157c-ev1 (diff) | |
| download | linux-2619646b52243b8984970ddc59eb59c0a56716db.tar.xz linux-2619646b52243b8984970ddc59eb59c0a56716db.zip | |
ARM: dts: stm32: add joystick support on stm32mp157c-ev1
The joystick (B1) on stm32mp157c-ev1 uses gpios on STMFX gpio expander.
These gpios need a pin configuration (push-pull and bias-pull-down),
described under stmfx_pinctrl node.
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
Diffstat (limited to 'arch/arm/boot/dts/stm32mp157c-ev1.dts')
| -rw-r--r-- | arch/arm/boot/dts/stm32mp157c-ev1.dts | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/stm32mp157c-ev1.dts b/arch/arm/boot/dts/stm32mp157c-ev1.dts index 36af18ba6a1a..01438acb0081 100644 --- a/arch/arm/boot/dts/stm32mp157c-ev1.dts +++ b/arch/arm/boot/dts/stm32mp157c-ev1.dts @@ -7,6 +7,7 @@ #include "stm32mp157c-ed1.dts" #include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/input/input.h> / { model = "STMicroelectronics STM32MP157C eval daughter on eval mother"; @@ -21,6 +22,43 @@ ethernet0 = ðernet0; }; + joystick { + compatible = "gpio-keys"; + #size-cells = <0>; + pinctrl-0 = <&joystick_pins>; + pinctrl-names = "default"; + button-0 { + label = "JoySel"; + linux,code = <KEY_ENTER>; + interrupt-parent = <&stmfx_pinctrl>; + interrupts = <0 IRQ_TYPE_EDGE_RISING>; + }; + button-1 { + label = "JoyDown"; + linux,code = <KEY_DOWN>; + interrupt-parent = <&stmfx_pinctrl>; + interrupts = <1 IRQ_TYPE_EDGE_RISING>; + }; + button-2 { + label = "JoyLeft"; + linux,code = <KEY_LEFT>; + interrupt-parent = <&stmfx_pinctrl>; + interrupts = <2 IRQ_TYPE_EDGE_RISING>; + }; + button-3 { + label = "JoyRight"; + linux,code = <KEY_RIGHT>; + interrupt-parent = <&stmfx_pinctrl>; + interrupts = <3 IRQ_TYPE_EDGE_RISING>; + }; + button-4 { + label = "JoyUp"; + linux,code = <KEY_UP>; + interrupt-parent = <&stmfx_pinctrl>; + interrupts = <4 IRQ_TYPE_EDGE_RISING>; + }; + }; + panel_backlight: panel-backlight { compatible = "gpio-backlight"; gpios = <&gpiod 13 GPIO_ACTIVE_LOW>; @@ -114,6 +152,12 @@ interrupt-controller; #interrupt-cells = <2>; gpio-ranges = <&stmfx_pinctrl 0 0 24>; + + joystick_pins: joystick { + pins = "gpio0", "gpio1", "gpio2", "gpio3", "gpio4"; + drive-push-pull; + bias-pull-down; + }; }; }; }; |