diff options
| author | Biju Das <biju.das.jz@bp.renesas.com> | 2025-07-02 10:27:53 +0100 |
|---|---|---|
| committer | Geert Uytterhoeven <geert+renesas@glider.be> | 2025-07-08 11:46:36 +0200 |
| commit | 9e95446b0cf93a91bc3b3b64c6d423f4024a6ff0 (patch) | |
| tree | 1d7066085ac7affc8fcaba72446019b654157d60 | |
| parent | 3d6c2bc7629c8b1bfd75416767122096bb75ba7b (diff) | |
arm64: dts: renesas: r9a09g047e57-smarc: Add gpio keys
RZ/G3E SMARC EVK has 3 user buttons called USER_SW1, USER_SW2 and
USER_SW3 and SLEEP button with NMI support. Add a DT node in device tree
to instantiate the gpio-keys driver for these buttons.
The system can enter into STR state by pressing the sleep button and
wakeup from STR is done by pressing power button. The USER_SW{1,2,3}
configured as wakeup-source, so it can wakeup the system during s2idle.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20250702092755.70847-1-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
| -rw-r--r-- | arch/arm64/boot/dts/renesas/r9a09g047e57-smarc.dts | 37 | ||||
| -rw-r--r-- | arch/arm64/boot/dts/renesas/renesas-smarc2.dtsi | 31 |
2 files changed, 68 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc.dts b/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc.dts index 2454a9743df2..1e67f0a2a945 100644 --- a/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc.dts +++ b/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc.dts @@ -8,6 +8,7 @@ /dts-v1/; /* Switch selection settings */ +#define SW_LCD_EN 0 #define SW_GPIO8_CAN0_STB 0 #define SW_GPIO9_CAN1_STB 0 #define SW_LCD_EN 0 @@ -15,7 +16,16 @@ #define SW_SD0_DEV_SEL 0 #define SW_SDIO_M2E 0 +#define PMOD_GPIO4 0 +#define PMOD_GPIO6 0 +#define PMOD_GPIO7 0 + +#define KEY_1_GPIO RZG3E_GPIO(3, 1) +#define KEY_2_GPIO RZG3E_GPIO(8, 4) +#define KEY_3_GPIO RZG3E_GPIO(8, 5) + #include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/input/input.h> #include <dt-bindings/pinctrl/renesas,r9a09g047-pinctrl.h> #include "r9a09g047e57.dtsi" #include "rzg3e-smarc-som.dtsi" @@ -79,6 +89,29 @@ pinctrl-names = "default"; }; +&keys { + key-sleep { + pinctrl-0 = <&nmi_pins>; + pinctrl-names = "default"; + + interrupts-extended = <&icu 0 IRQ_TYPE_EDGE_FALLING>; + linux,code = <KEY_SLEEP>; + label = "SLEEP"; + debounce-interval = <20>; + }; +#if PMOD_GPIO4 + /delete-node/ key-1; +#endif + +#if SW_LCD_EN || PMOD_GPIO6 + /delete-node/ key-2; +#endif + +#if SW_LCD_EN || PMOD_GPIO7 + /delete-node/ key-3; +#endif +}; + &pinctrl { canfd_pins: canfd { can1_pins: can1 { @@ -97,6 +130,10 @@ <RZG3E_PORT_PINMUX(D, 5, 4)>; /* SDA0 */ }; + nmi_pins: nmi { + pinmux = <RZG3E_PORT_PINMUX(S, 0, 0)>; /* NMI */ + }; + scif_pins: scif { pins = "SCIF_TXD", "SCIF_RXD"; renesas,output-impedance = <1>; diff --git a/arch/arm64/boot/dts/renesas/renesas-smarc2.dtsi b/arch/arm64/boot/dts/renesas/renesas-smarc2.dtsi index 3cac292f20b3..58561da3007a 100644 --- a/arch/arm64/boot/dts/renesas/renesas-smarc2.dtsi +++ b/arch/arm64/boot/dts/renesas/renesas-smarc2.dtsi @@ -23,6 +23,9 @@ * SW_GPIO9_CAN1_STB: * 0 - Connect to GPIO9 PMOD (default) * 1 - Connect to CAN1 transceiver STB pin + * + * GPIO keys are enabled by default. Use PMOD_GPIO macros to disable them + * if needed. */ / { @@ -53,6 +56,34 @@ max-bitrate = <8000000>; status = "disabled"; }; + + keys: keys { + compatible = "gpio-keys"; + + key-1 { + interrupts-extended = <&pinctrl KEY_1_GPIO IRQ_TYPE_EDGE_FALLING>; + linux,code = <KEY_1>; + label = "USER_SW1"; + wakeup-source; + debounce-interval = <20>; + }; + + key-2 { + interrupts-extended = <&pinctrl KEY_2_GPIO IRQ_TYPE_EDGE_FALLING>; + linux,code = <KEY_2>; + label = "USER_SW2"; + wakeup-source; + debounce-interval = <20>; + }; + + key-3 { + interrupts-extended = <&pinctrl KEY_3_GPIO IRQ_TYPE_EDGE_FALLING>; + linux,code = <KEY_3>; + label = "USER_SW3"; + wakeup-source; + debounce-interval = <20>; + }; + }; }; &canfd { |