[U-Boot] [PATCH 4/5] exynos5420: Add LCD and LED powerup settings for peach-pi

[Sjoerd Simons]

On Fri, 2014-12-05 at 19:43 +0530, Ajay Kumar wrote:
> Add code to support powerup sequence for peach-pi LCD.
> 
> Signed-off-by: Ajay Kumar <ajaykumar.rs at samsung.com>
> ---
>  board/samsung/smdk5420/smdk5420.c |   32 +++++++++++++++++++++-----------
>  1 file changed, 21 insertions(+), 11 deletions(-)
> 
> diff --git a/board/samsung/smdk5420/smdk5420.c b/board/samsung/smdk5420/smdk5420.c
> index a691222..915125e 100644
> --- a/board/samsung/smdk5420/smdk5420.c
> +++ b/board/samsung/smdk5420/smdk5420.c
> @@ -73,19 +73,24 @@ void exynos_lcd_power_on(void)
>  
>  	mdelay(5);
>  
> -	/* TODO(ajaykumar.rs at samsung.com): Use device tree */
> -	gpio_request(EXYNOS5420_GPIO_X35, "edp_slp#");
> -	gpio_direction_output(EXYNOS5420_GPIO_X35, 1);	/* EDP_SLP# */
> -	mdelay(10);
> -	gpio_request(EXYNOS5420_GPIO_Y77, "edp_rst#");
> -	gpio_direction_output(EXYNOS5420_GPIO_Y77, 1);	/* EDP_RST# */
> -	gpio_request(EXYNOS5420_GPIO_X26, "edp_hpd");
> -	gpio_direction_input(EXYNOS5420_GPIO_X26);	/* EDP_HPD */
> -	gpio_set_pull(EXYNOS5420_GPIO_X26, S5P_GPIO_PULL_NONE);
> -
> -	if (has_edp_bridge())
> +	if (has_edp_bridge()) {
> +		/* TODO(ajaykumar.rs at samsung.com): Use device tree */
> +		gpio_request(EXYNOS5420_GPIO_X35, "edp_slp#");
> +		gpio_direction_output(EXYNOS5420_GPIO_X35, 1);	/* EDP_SLP# */
> +		mdelay(10);
> +		gpio_request(EXYNOS5420_GPIO_Y77, "edp_rst#");
> +		gpio_direction_output(EXYNOS5420_GPIO_Y77, 1);	/* EDP_RST# */
> +		gpio_request(EXYNOS5420_GPIO_X26, "edp_hpd");
> +		gpio_direction_input(EXYNOS5420_GPIO_X26);	/* EDP_HPD */
> +		gpio_set_pull(EXYNOS5420_GPIO_X26, S5P_GPIO_PULL_NONE);
> +
>  		if (parade_init(gd->fdt_blob))
>  			printf("%s: ps8625_init() failed\n", __func__);
> +	} else {
> +		gpio_request(EXYNOS5420_GPIO_X26, "edp_hpd");
> +		gpio_direction_input(EXYNOS5420_GPIO_X26);	/* EDP_HPD */
> +		gpio_set_pull(EXYNOS5420_GPIO_X26, S5P_GPIO_PULL_NONE);
> +	}

Any chance you could switch to using device-tree while changing this
area. On SMDK5420 and XU3 EXYNOS5420_GPIO_X26 is used for USB so there
is a bit of a potentially nastly clash there.


-- 
Sjoerd Simons <sjoerd.simons at collabora.co.uk>
Collabora Ltd.
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