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ARM: shmobile: ape6evm dts: Enable pull-up for GPIO switches 

The switches on r8a73a4/ape6evm do not have pull-up registers.  The
schematics say: "Need to use APE6 internal PullUp", hence enable pull-up
using pinctrl.

Without this, the switches don't really work, as the GPIO inputs are
more likely to pick up ghost signals through capacitive coupling than
actual keypresses.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
Geert Uytterhoeven 2015-02-27 18:48:38 +01:00 committed by Simon Horman
parent 75a499a651
commit a104662052
1 changed files with 9 additions and 0 deletions
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arch/arm/boot/dts/r8a73a4-ape6evm.dts
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@ -123,6 +123,9 @@ led6 {
keyboard {
compatible = "gpio-keys";
pinctrl-names = "default";
pinctrl-0 = <&keyboard_pins>;
zero-key {
gpios = <&pfc 324 GPIO_ACTIVE_LOW>;
linux,code = <KEY_0>;
@ -208,6 +211,12 @@ sdhi1_pins: sd1 {
renesas,groups = "sdhi1_data4", "sdhi1_ctrl";
renesas,function = "sdhi1";
};
keyboard_pins: keyboard {
renesas,pins = "PORT324", "PORT325", "PORT326", "PORT327",
"PORT328", "PORT329";
bias-pull-up;
};
};
&mmcif0 {