From: Andrzej Hajda <a.hajda@samsung.com>
To: Inki Dae <inki.dae@samsung.com>
Cc: dri-devel@lists.freedesktop.org
Subject: Re: [PATCH] drm/panel/ld9040: add power control sequence
Date: Mon, 05 May 2014 10:51:02 +0200 [thread overview]
Message-ID: <536750F6.6070106@samsung.com> (raw)
In-Reply-To: <534FCF1D.3010004@samsung.com>
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@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);
next prev parent reply other threads:[~2014-05-05 8:51 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-08 10:58 [PATCH] drm/panel/ld9040: add power control sequence Andrzej Hajda
2014-04-17 12:54 ` Andrzej Hajda
2014-05-05 8:51 ` Andrzej Hajda [this message]
2014-05-05 10:42 ` Thierry Reding
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