[U-Boot] [PATCH] post: add gpio hotkey support

[Sergei Shtylyov <sshtylyov@mvista.com>]

Hello.

On 10-05-2011 21:01, Mike Frysinger wrote:

> Now that we have the generic GPIO layer, we can easily provide a common
> implementation for the post_hotkeys_pressed() function based on it.

> Signed-off-by: Mike Frysinger<vapier@gentoo.org>
> ---
>   post/post.c |   21 +++++++++++++++++++++
>   1 files changed, 21 insertions(+), 0 deletions(-)

> diff --git a/post/post.c b/post/post.c
> index 1b7f2aa..ecea1e1 100644
> --- a/post/post.c
> +++ b/post/post.c
[...]
> @@ -68,6 +72,23 @@ int post_init_f (void)
>    */
>   int __post_hotkeys_pressed(void)
>   {
> +#ifdef CONFIG_SYS_POST_HOTKEYS_GPIO
> +	int ret;
> +	unsigned gpio = CONFIG_SYS_POST_HOTKEYS_GPIO;
> +
> +	ret = gpio_request(gpio, "hotkeys");
> +	if (ret) {
> +		printf("POST: gpio hotkey request failed\n");
> +		return 0;
> +	}
> +
> +	gpio_direction_input(gpio);
> +	ret = gpio_get_value(gpio);
> +	gpio_free(gpio);
> +
> +	return ret;
> +#endif

    You surely meant #else here?

> +
>   	return 0;	/* No hotkeys supported */
>   }
>   int post_hotkeys_pressed(void)

WBR, Sergei