On 2016-10-19 14:31, Thierry Reding wrote:
> On Wed, Oct 19, 2016 at 02:27:50PM +0200, Thierry Reding wrote:
>> On Tue, Oct 04, 2016 at 05:29:21PM +0200, Peter Rosin wrote:
>>> From: Gustaf Lindström <gl@xxxxxxxxxx>
>>>
>>> The Sharp 15" LQ150X1LG11 panel is an XGA TFT LCD panel.
>>>
>>> The simple-panel driver is used to get support for essential
>>> functionality of the panel.
>>>
>>> Signed-off-by: Gustaf Lindström <gl@xxxxxxxxxx>
>>> Signed-off-by: Peter Rosin <peda@xxxxxxxxxx>
>>> ---
>>> drivers/gpu/drm/panel/panel-simple.c | 27 +++++++++++++++++++++++++++
>>> 1 file changed, 27 insertions(+)
>>>
>>> diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
>>> index 85143d1b9b31..58cfe0a7a9d6 100644
>>> --- a/drivers/gpu/drm/panel/panel-simple.c
>>> +++ b/drivers/gpu/drm/panel/panel-simple.c
>>> @@ -1386,6 +1386,30 @@ static const struct panel_desc sharp_lq123p1jx31 = {
>>> },
>>> };
>>>
>>> +static const struct drm_display_mode sharp_lq150x1lg11_mode = {
>>> + .clock = 71100,
>>> + .hdisplay = 1024,
>>> + .hsync_start = 1024 + 168,
>>> + .hsync_end = 1024 + 168 + 64,
>>> + .htotal = 1024 + 168 + 64 + 88,
>>> + .vdisplay = 768,
>>> + .vsync_start = 768 + 37,
>>> + .vsync_end = 768 + 37 + 2,
>>> + .vtotal = 768 + 37 + 2 + 8,
>>> + .vrefresh = 60,
>>> +};
>>> +
>>> +static const struct panel_desc sharp_lq150x1lg11 = {
>>> + .modes = &sharp_lq150x1lg11_mode,
>>> + .num_modes = 1,
>>> + .bpc = 8,
>>> + .size = {
>>> + .width = 304,
>>> + .height = 228,
>>> + },
>>> + .bus_format = MEDIA_BUS_FMT_RGB565_1X16,
>>
>> This doesn't match the .bpc = 8 above. You'd usually use a .bpc = 6 for
>> RGB565 panels.
>
> Are you actually using the .bpc field in your driver? If yes, can you
> please test if things work correctly if you set it to 6? If it's unused
> I'm leaning towards just applying this with .bpc set to 6 and hope for
> the best (and fix it if somebody finds that it's broken).
>
> So no need to resend, just let me know what you think.
Sorry for the delay, but I just tested .bpc = 6 and it was ok too. It
doesn't seem to matter for us, so do as you like.
Cheers,
Peter
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