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arm64: dts: renesas: r9a09g047e57-smarc: Add gpio keys

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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>
This commit is contained in:
Biju Das
2025-07-02 10:27:53 +01:00
committed by Geert Uytterhoeven
parent 3d6c2bc762
commit 9e95446b0c
2 changed files with 68 additions and 0 deletions
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37
arch/arm64/boot/dts/renesas/r9a09g047e57-smarc.dts
View File

@@ -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>;

31
arch/arm64/boot/dts/renesas/renesas-smarc2.dtsi
View File

@@ -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 {