This pins are externally pulled up, and so we should explicitly
configure them to disable the SoC-internal pull-downs. Previously
we relied on the bootloader doing this in order to allow the buttons
to function properly.
Signed-off-by: Simon Shields <simon@xxxxxxxxxxxxx>
---
arch/arm/boot/dts/exynos4412-midas.dtsi | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/arch/arm/boot/dts/exynos4412-midas.dtsi b/arch/arm/boot/dts/exynos4412-midas.dtsi
index ee7cda1432f7..6f7b564905ab 100644
--- a/arch/arm/boot/dts/exynos4412-midas.dtsi
+++ b/arch/arm/boot/dts/exynos4412-midas.dtsi
@@ -112,6 +112,8 @@
gpio-keys {
compatible = "gpio-keys";
+ pinctrl-names = "default";
+ pinctrl-0 = <&gpio_keys>;
key-down {
gpios = <&gpx3 3 GPIO_ACTIVE_LOW>;
@@ -1126,6 +1128,11 @@
pinctrl-names = "default";
pinctrl-0 = <&sleep1>;
+ gpio_keys: gpio-keys {
+ samsung,pins = "gpx0-1", "gpx2-2", "gpx2-7", "gpx3-3";
+ samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+ };
+
max77693_irq: max77693-irq {
samsung,pins = "gpx1-5";
samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
--
2.18.0
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