[0/1] drm/panel: st7703: Fix vertical refresh rate of XBD599

Message

Frank Oltmanns Feb. 19, 2023, 11:45 a.m. UTC

Currently, the XBD599 panel has a pixel clock rate that results in a
vertical refresh rate of ~55.3 Hz. This causes a slight visual
stuttering, for example on the PinePhone.

To address this, I adjusted the pixel clock rate to 74844 kHz. Instead
of using this hard coded value, I inserted the formula. This approach is
already in use by:
panel-jdi-fhd-r63452.c
panel-samsung-s6e88a0-ams452ef01.c
panel-asus-z00t-tm5p5-n35596.c
panel-ebbg-ft8719.c
panel-visionox-vtdr6130.c
panel-sony-tulip-truly-nt35521.c
panel-sharp-ls060t1sx01.c
panel-samsung-sofef00.c

To have a consistent procedure within panel-sitronix-st7703.c, I also
used the formula for the JH057N panel's clock. The value for JH057N was
already correct, so this change is purely cosmetic.

I do realize that I submitted three separate patches for the ST7703
within just a few days ([1], [2]). Should I re-submit all three patches
as a single patch set? These are my first contributions to the Linux
kernel, therefore, I kindly ask for forgiveness regarding any breach of
etiquette.

Thanks,
  Frank

[1] https://lore.kernel.org/all/[e-mail]/
[2] https://lore.kernel.org/all/[e-mail]/

Frank Oltmanns (1):
  drm/panel: st7703: Fix vertical refresh rate of XBD599

 drivers/gpu/drm/panel/panel-sitronix-st7703.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)