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

Andrzej Hajda a.hajda at samsung.com
Mon May 5 01:51:02 PDT 2014


Gently ping nr 2.

Regards
Andrzej

On 04/17/2014 02:54 PM, Andrzej Hajda wrote:
> 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 at 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);



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