[PATCH] drm/panel-edp: Add several generic edp panels

[Doug Anderson]

Hi,

On Wed, Jul 30, 2025 at 12:16 AM Cong Yang
<yangcong5 at huaqin.corp-partner.google.com> wrote:
>
> Add a few generic edp panels used by mt8189 chromebooks, most of them use
> the same general timing. For CMN-N116BCA-EAK, the enable timing should be
> 200ms. For TMA-TL140VDMS03-01, the enable timing should be 80ms and the
> disable timing should be 100ms.
>
> 1. AUO B122UAN01.0
> 2. AUO B116XAK02.0
> 3. AUO B140UAN08.5
> 4. AUO B140UAX01.2
> 5. BOE NV116WHM-N4B
> 6. BOE NV116WHM-T01
> 7. CMN N122JCA-ENK
> 8. CMN N140JCA-ELP
> 9. CMN N116BCA-EAK
> 10. CSW MNE007QS5-2
> 11. SCW MNE007QB2-2

nit: CSW, not SCW.


> 12. TMA TM140VDXP01-04
> 13. TMA TL140VDMS03-01
>
> Signed-off-by: Cong Yang <yangcong5 at huaqin.corp-partner.google.com>
> ---
>  drivers/gpu/drm/panel/panel-edp.c | 29 +++++++++++++++++++++++++++++
>  1 file changed, 29 insertions(+)

Please make the subject line a little less generic so we can tell one
change for the next. If all changes just say "add more panels" then
when cherry-picking and looking at patch subject lines it's hard to
tell which patches have been picked and which haven't.

In this case you could mention that the panels are used by mt8180
Chromebooks, like:

drm/panel-edp: Add edp panels used by mt8180 Chromebooks

Also: even though it's a bit of a pain, can you please include the
EDIDs in your commit message? I know there are 13 panels and that can
make a long commit message, but I'd still rather see it here just in
case we have to later go back and reference exactly what panel you
were working with in case some manufacturer re-uses panel IDs (it's
happened in the past).


> @@ -1865,6 +1880,7 @@ static const struct panel_delay delay_200_500_e50_d100 = {
>   * Sort first by vendor, then by product ID.
>   */
>  static const struct edp_panel_entry edp_panels[] = {
> +       EDP_PANEL_ENTRY('A', 'U', 'O', 0x04a4, &delay_200_500_e50, "B122UAN01.0"),
>         EDP_PANEL_ENTRY('A', 'U', 'O', 0x105c, &delay_200_500_e50, "B116XTN01.0"),
>         EDP_PANEL_ENTRY('A', 'U', 'O', 0x1062, &delay_200_500_e50, "B120XAN01.0"),
>         EDP_PANEL_ENTRY('A', 'U', 'O', 0x125c, &delay_200_500_e50, "Unknown"),
> @@ -1883,6 +1899,7 @@ static const struct edp_panel_entry edp_panels[] = {
>         EDP_PANEL_ENTRY2('A', 'U', 'O', 0x405c, &auo_b116xak01.delay, "B116XAK01.0",
>                          &auo_b116xa3_mode),
>         EDP_PANEL_ENTRY('A', 'U', 'O', 0x435c, &delay_200_500_e50, "Unknown"),
> +       EDP_PANEL_ENTRY('A', 'U', 'O', 0x52b0, &delay_200_500_e80_d50, "B116XAK02.0"),
>         EDP_PANEL_ENTRY('A', 'U', 'O', 0x582d, &delay_200_500_e50, "B133UAN01.0"),
>         EDP_PANEL_ENTRY('A', 'U', 'O', 0x615c, &delay_200_500_e50, "B116XAN06.1"),
>         EDP_PANEL_ENTRY('A', 'U', 'O', 0x635c, &delay_200_500_e50, "B116XAN06.3"),
> @@ -1890,10 +1907,12 @@ static const struct edp_panel_entry edp_panels[] = {
>         EDP_PANEL_ENTRY('A', 'U', 'O', 0x723c, &delay_200_500_e50, "B140XTN07.2"),
>         EDP_PANEL_ENTRY('A', 'U', 'O', 0x73aa, &delay_200_500_e50, "B116XTN02.3"),
>         EDP_PANEL_ENTRY('A', 'U', 'O', 0x8594, &delay_200_500_e50, "B133UAN01.0"),
> +       EDP_PANEL_ENTRY('A', 'U', 'O', 0x8bba, &delay_200_500_e80_d50, "B140UAN08.5"),

All the old AUX panels seem to use just "e50" but all the new ones
you're adding use "e80_d50". That looks really suspicious. Are you
sure that these new panels need "e80_d50"? Were the old definitions
wrong?