Re: [PATCH] drm/panel/ld9040: add power control sequence

[Andrzej Hajda <a.hajda@samsung.com>]

Hi Inki,

Could you pick up this patch into the fixes branch.

Regards
Andrzej

On 04/08/2014 12:58 PM, Andrzej Hajda wrote:
> Some ld9040 panels do not start without providing power control sequence
> during initialization. The patch fixes the driver by providing such
> sequence for all panels.
>
> Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
> ---
>  drivers/gpu/drm/panel/panel-ld9040.c | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/drivers/gpu/drm/panel/panel-ld9040.c b/drivers/gpu/drm/panel/panel-ld9040.c
> index 1f1f837..db1601f 100644
> --- a/drivers/gpu/drm/panel/panel-ld9040.c
> +++ b/drivers/gpu/drm/panel/panel-ld9040.c
> @@ -27,6 +27,7 @@
>  #define MCS_ELVSS_ON		0xb1
>  #define MCS_USER_SETTING	0xf0
>  #define MCS_DISPCTL		0xf2
> +#define MCS_POWER_CTRL		0xf4
>  #define MCS_GTCON		0xf7
>  #define MCS_PANEL_CONDITION	0xf8
>  #define MCS_GAMMA_SET1		0xf9
> @@ -182,6 +183,8 @@ static void ld9040_init(struct ld9040 *ctx)
>  	ld9040_dcs_write_seq_static(ctx, MCS_DISPCTL,
>  		0x02, 0x08, 0x08, 0x10, 0x10);
>  	ld9040_dcs_write_seq_static(ctx, MCS_MANPWR, 0x04);
> +	ld9040_dcs_write_seq_static(ctx, MCS_POWER_CTRL,
> +		0x0a, 0x87, 0x25, 0x6a, 0x44, 0x02, 0x88);
>  	ld9040_dcs_write_seq_static(ctx, MCS_ELVSS_ON, 0x0d, 0x00, 0x16);
>  	ld9040_dcs_write_seq_static(ctx, MCS_GTCON, 0x09, 0x00, 0x00);
>  	ld9040_brightness_set(ctx);