linux-kernel - Re: [PATCH V2 2/2] input: gpio-keys: add support to name the gpio-keys

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Date:	Tue, 12 Jan 2016 23:02:33 -0800
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	Laxman Dewangan <ldewangan@...dia.com>
Cc:	robh+dt@...nel.org, pawel.moll@....com, mark.rutland@....com,
	galak@...eaurora.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-input@...r.kernel.org,
	linus.walleij@...aro.org, bjorn.andersson@...ymobile.com
Subject: Re: [PATCH V2 2/2] input: gpio-keys: add support to name the
 gpio-keys

On Wed, Jan 13, 2016 at 11:44:17AM +0530, Laxman Dewangan wrote:
> Add support from DT to name the gpio-keys driver to have
> desired key name for this input system.
> 
> This helps userspace code to get name and perform proper
> event to key mapping in some of cases. In android, the
> user space map the key code to application code using
> key character layout and for this it uses the name of
> input system.
> 
> Signed-off-by: Laxman Dewangan <ldewangan@...dia.com>

Applied, thank you.

> ---
> Changes from V1:
> - Use standard property "label" instead of custom property "gpio-keys,name"
> 
>  Documentation/devicetree/bindings/input/gpio-keys.txt | 1 +
>  drivers/input/keyboard/gpio_keys.c                    | 2 ++
>  2 files changed, 3 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/input/gpio-keys.txt b/Documentation/devicetree/bindings/input/gpio-keys.txt
> index cf1333d..f23bfa1 100644
> --- a/Documentation/devicetree/bindings/input/gpio-keys.txt
> +++ b/Documentation/devicetree/bindings/input/gpio-keys.txt
> @@ -4,6 +4,7 @@ Required properties:
>  	- compatible = "gpio-keys";
>  
>  Optional properties:
> +	- label: String, name of the gpio-keys input system.
>  	- autorepeat: Boolean, Enable auto repeat feature of Linux input
>  	  subsystem.
>  
> diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c
> index 08bada8..448f38f 100644
> --- a/drivers/input/keyboard/gpio_keys.c
> +++ b/drivers/input/keyboard/gpio_keys.c
> @@ -628,6 +628,8 @@ gpio_keys_get_devtree_pdata(struct device *dev)
>  
>  	pdata->rep = !!of_get_property(node, "autorepeat", NULL);
>  
> +	of_property_read_string(node, "label", &pdata->name);
> +
>  	i = 0;
>  	for_each_child_of_node(node, pp) {
>  		enum of_gpio_flags flags;
> -- 
> 2.1.4
> 

-- 
Dmitry