tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
arm64: dts: meson-sm1-sei610: gpio-keys: switch to IRQs
Switch the GPIO buttons/switches to use interrupts instead of polling.
While at it, add the mic mute switch and the power button.
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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+24
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arch/arm64/boot/dts/amlogic/meson-sm1-sei610.dts
+24
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arch/arm64/boot/dts/amlogic/meson-sm1-sei610.dts
···
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};
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gpio-keys {
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-
compatible = "gpio-keys-polled";
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-
poll-interval = <100>;
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+
compatible = "gpio-keys";
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key1 {
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label = "A";
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linux,code = <BTN_0>;
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gpios = <&gpio GPIOH_6 GPIO_ACTIVE_LOW>;
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+
interrupt-parent = <&gpio_intc>;
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+
interrupts = <34 IRQ_TYPE_EDGE_BOTH>;
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};
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key2 {
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label = "B";
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linux,code = <BTN_1>;
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gpios = <&gpio GPIOH_7 GPIO_ACTIVE_LOW>;
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+
interrupt-parent = <&gpio_intc>;
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+
interrupts = <35 IRQ_TYPE_EDGE_BOTH>;
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};
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key3 {
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label = "C";
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linux,code = <BTN_2>;
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gpios = <&gpio_ao GPIOAO_2 GPIO_ACTIVE_LOW>;
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+
interrupt-parent = <&gpio_intc>;
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+
interrupts = <2 IRQ_TYPE_EDGE_BOTH>;
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+
};
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+
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+
mic_mute {
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label = "MicMute";
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linux,code = <SW_MUTE_DEVICE>;
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+
linux,input-type = <EV_SW>;
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+
gpios = <&gpio_ao GPIOE_2 GPIO_ACTIVE_LOW>;
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+
interrupt-parent = <&gpio_intc>;
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interrupts = <99 IRQ_TYPE_EDGE_BOTH>;
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};
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+
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power_key {
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label = "PowerKey";
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linux,code = <KEY_POWER>;
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gpios = <&gpio_ao GPIOAO_3 GPIO_ACTIVE_LOW>;
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interrupt-parent = <&gpio_intc>;
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interrupts = <3 IRQ_TYPE_EDGE_BOTH>;
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};
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};
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