[PATCH v7 10/13] arm64: dts: freescale: sl28: map GPIOs to input events
From: Michael Walle <hidden>
Date: 2020-08-03 09:42:49
Also in:
linux-arm-kernel, linux-gpio, linux-hwmon, linux-pwm, linux-watchdog, lkml
Subsystem:
arm/freescale layerscape arm architecture, the rest · Maintainers:
Frank Li, Linus Torvalds
Now that we have support for GPIO lines of the SMARC connector, map the sleep, power and lid switch signals to the corresponding keys using the gpio-keys and gpio-keys-polled drivers. The power and sleep signals have dedicated interrupts, thus we use these ones. The lid switch is just mapped to a GPIO input and needs polling. Signed-off-by: Michael Walle <redacted> --- Changes since v6: - none Changes since v5: - none Changes since v4: - none Changes since v3: - see cover letter .../freescale/fsl-ls1028a-kontron-sl28.dts | 32 +++++++++++++++++++ 1 file changed, 32 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28.dts b/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28.dts
index 9f9834eafe65..17a2f5dacc3f 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28.dts@@ -9,6 +9,8 @@ /dts-v1/; #include "fsl-ls1028a.dtsi" #include <dt-bindings/interrupt-controller/irq.h> +#include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/input/input.h> / { model = "Kontron SMARC-sAL28";
@@ -23,6 +25,36 @@ spi1 = &dspi2; }; + buttons0 { + compatible = "gpio-keys"; + + power-button { + interrupts-extended = <&sl28cpld_intc + 4 IRQ_TYPE_EDGE_BOTH>; + linux,code = <KEY_POWER>; + label = "Power"; + }; + + sleep-button { + interrupts-extended = <&sl28cpld_intc + 5 IRQ_TYPE_EDGE_BOTH>; + linux,code = <KEY_SLEEP>; + label = "Sleep"; + }; + }; + + buttons1 { + compatible = "gpio-keys-polled"; + poll-interval = <200>; + + lid-switch { + linux,input-type = <EV_SW>; + linux,code = <SW_LID>; + gpios = <&sl28cpld_gpio3 4 GPIO_ACTIVE_LOW>; + label = "Lid"; + }; + }; + chosen { stdout-path = "serial0:115200n8"; };
--
2.20.1