Re: gpio_key.c device tree question

From: noman pouigt
Date: Tue Jan 10 2017 - 02:29:19 EST


On Sun, Jan 8, 2017 at 7:42 PM, noman pouigt <variksla@xxxxxxxxx> wrote:
> Hello,
>
> I am trying to see how to disable the sub device nodes in
> gpio_keys device node.
>
> I have this in my base dtsi file:
>
> #include "vendor_file.dtsi"
>
> gpio_keys {
> compatible = "gpio-keys";
> input-name = "gpio-keys";
> pinctrl-names = "gpio_key_active","gpio_key_suspend";
> pinctrl-0 = <&key_active>;
> pinctrl-1 = <&key_suspend>;
> camera_snapshot {
> label = "camera_snapshot";
> //snip
> };
> };
>
> I have this in vendor_file.dtsi:
> gpio_keys {
> source_key_1 {
> label = "source_key_1";
> //snip
> };
> };
>
> In my current consolidated dtb file all nodes are getting
> added i.e. camera_snapshot and source_key_1. How
> can i remove camera_snapshot node from the
> gpio_keys device node or disable it?

This issue is fixed with below commit:

commit 809d9516da73345cca587743b57e45e9095d851e
Author: Laxman Dewangan <ldewangan@xxxxxxxxxx>
Date: Wed Jan 13 00:14:19 2016 -0800

Input: gpio-keys - allow disabling individual buttons in DT

Add support to disable buttons from DT via status property if given button
is not supported on given platforms. This will help re-using existing dtsi
files across multiple platforms.

Signed-off-by: Laxman Dewangan <ldewangan@xxxxxxxxxx>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
>
>
> Thanks,