[PATCH 3/3] drm/panel: simple: fix osd070t1718_19ts sync drive edge

[Tomi Valkeinen]

Hi Thierry,

On 02/12/2019 15:07, Laurent Pinchart wrote:
> Hi Tomi,
> 
> Thank you for the patch.
> 
> On Thu, Nov 14, 2019 at 11:39:50AM +0200, Tomi Valkeinen wrote:
>> The panel datasheet says that the panel samples at falling edge, but
>> does not say anything about h/v sync signals. Testing shows that if the
>> sync signals are driven on falling edge, the picture on the panel will
>> be slightly shifted right.
>>
>> Setting sync drive edge to the same as data drive edge fixes this issue.
>>
>> Signed-off-by: Tomi Valkeinen <tomi.valkeinen at ti.com>
> 
> I don't have access to the documentation, but this makes sense, so
> 
> Acked-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
> 
>> ---
>>   drivers/gpu/drm/panel/panel-simple.c | 3 ++-
>>   1 file changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
>> index 5d487686d25c..0784536ae6af 100644
>> --- a/drivers/gpu/drm/panel/panel-simple.c
>> +++ b/drivers/gpu/drm/panel/panel-simple.c
>> @@ -2397,7 +2397,8 @@ static const struct panel_desc osddisplays_osd070t1718_19ts = {
>>   		.height = 91,
>>   	},
>>   	.bus_format = MEDIA_BUS_FMT_RGB888_1X24,
>> -	.bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE,
>> +	.bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE |
>> +		DRM_BUS_FLAG_SYNC_DRIVE_POSEDGE,
>>   	.connector_type = DRM_MODE_CONNECTOR_DPI,
>>   };
>>   
> 

Can you pick this one up?

  Tomi

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