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ARM: dts: stm32: Add GPIO keys for STM32MP1 DHCOM PDK2
Add bindings for the four GPIO keys on DH PDK2 board. Note that TA1 key is polled because it's IRQ line conflicts with ethernet IRQ, the rest of the GPIO keys, TA2, TA3, TA4, are interrupt-driven and wake up sources. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Alexandre Torgue <alexandre.torgue@st.com> Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com> Cc: Patrice Chotard <patrice.chotard@st.com> Cc: Patrick Delaunay <patrick.delaunay@st.com> Cc: linux-stm32@st-md-mailman.stormreply.com To: linux-arm-kernel@lists.infradead.org Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
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@ -4,6 +4,7 @@
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*/
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#include "stm32mp157c-dhcom-som.dtsi"
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#include <dt-bindings/input/input.h>
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#include <dt-bindings/pwm/pwm.h>
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/ {
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@ -46,6 +47,48 @@ ethernet_vio: vioregulator {
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regulator-boot-on;
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};
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gpio-keys-polled {
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compatible = "gpio-keys-polled";
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#size-cells = <0>;
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poll-interval = <20>;
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/*
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* The EXTi IRQ line 3 is shared with touchscreen and ethernet,
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* so mark this as polled GPIO key.
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*/
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button-0 {
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label = "TA1-GPIO-A";
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linux,code = <KEY_A>;
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gpios = <&gpiof 3 GPIO_ACTIVE_LOW>;
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};
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};
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gpio-keys {
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compatible = "gpio-keys";
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#size-cells = <0>;
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button-1 {
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label = "TA2-GPIO-B";
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linux,code = <KEY_B>;
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gpios = <&gpiod 6 GPIO_ACTIVE_LOW>;
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wakeup-source;
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};
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button-2 {
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label = "TA3-GPIO-C";
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linux,code = <KEY_C>;
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gpios = <&gpioi 11 GPIO_ACTIVE_LOW>;
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wakeup-source;
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};
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button-3 {
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label = "TA4-GPIO-D";
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linux,code = <KEY_D>;
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gpios = <&gpiod 12 GPIO_ACTIVE_LOW>;
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wakeup-source;
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};
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};
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panel {
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compatible = "edt,etm0700g0edh6";
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backlight = <&display_bl>;
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