2019-02-09 18:46:43 +00:00
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From ceeecef75e5faa16a3f435eb25bb66c3d983a345 Mon Sep 17 00:00:00 2001
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From: Sergey Larin <cerg2010cerg2010@mail.ru>
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Date: Sun, 10 Feb 2019 16:55:18 +0300
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2019-02-24 19:33:39 +00:00
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Subject: [PATCH] ARM: dts: tegra20-glide: Add HALL GPIO binding
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2019-02-09 18:46:43 +00:00
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This is used for keyboard slide detection.
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Signed-off-by: Sergey Larin <cerg2010cerg2010@mail.ru>
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---
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arch/arm/boot/dts/tegra20-glide.dts | 15 +++++++++++++++
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1 file changed, 15 insertions(+)
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diff --git a/arch/arm/boot/dts/tegra20-glide.dts b/arch/arm/boot/dts/tegra20-glide.dts
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index 3d419e094665..ab30b1b8cc29 100644
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--- a/arch/arm/boot/dts/tegra20-glide.dts
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+++ b/arch/arm/boot/dts/tegra20-glide.dts
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@@ -1107,6 +1107,14 @@
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kbd {
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label = "Keyboard backlight";
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gpios = <&gpio TEGRA_GPIO(L, 5) GPIO_ACTIVE_HIGH>;
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+ /*
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+ * Looks like there's no way to specify GPIO for trigger in DT.
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+ * So keyboard hall GPIO is PW3, which number is 179.
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+ * (See TEGRA_GPIO() macro)
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+ * To enable this trigger:
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+ * echo gpio > /sys/class/leds/Keyboard\ backlight/trigger
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+ * echo 179 > /sys/class/leds/Keyboard\ backlight/gpio
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+ */
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linux,default-trigger = "gpio";
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default-state = "off";
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};
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@@ -1232,6 +1240,13 @@
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linux,code = <KEY_VOLUMEDOWN>;
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debounce-interval = <10>;
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};
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+
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+ hall {
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+ label = "Keyboard slide";
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+ gpios = <&gpio TEGRA_GPIO(W, 3) GPIO_ACTIVE_LOW>;
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+ linux,input-type = <EV_SW>;
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+ linux,code = <SW_KEYPAD_SLIDE>;
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+ };
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};
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spi@7000d800 {
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--
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2.20.1
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