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* [PATCH 0/1] drm/panel: st7703: Fix vertical refresh rate of XBD599
@ 2023-02-19 11:45 Frank Oltmanns
  2023-02-19 11:45 ` [PATCH 1/1] " Frank Oltmanns
  0 siblings, 1 reply; 8+ messages in thread
From: Frank Oltmanns @ 2023-02-19 11:45 UTC (permalink / raw)
  To: Guido Günther, Purism Kernel Team, Ondrej Jirman,
	Thierry Reding, Sam Ravnborg, David Airlie, Daniel Vetter,
	open list:DRM PANEL DRIVERS, open list
  Cc: Frank Oltmanns

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/20230211171748.36692-1-frank@oltmanns.dev/
[2] https://lore.kernel.org/all/20230213123238.76889-1-frank@oltmanns.dev/

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(-)

-- 
2.39.1


^ permalink raw reply	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2023-02-26 17:17 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-02-19 11:45 [PATCH 0/1] drm/panel: st7703: Fix vertical refresh rate of XBD599 Frank Oltmanns
2023-02-19 11:45 ` [PATCH 1/1] " Frank Oltmanns
2023-02-19 12:00   ` Guido Günther
2023-02-19 12:35   ` Ondřej Jirman
2023-02-20  7:40     ` Frank Oltmanns
2023-02-26 15:17     ` Frank Oltmanns
2023-02-26 17:17       ` Ondřej Jirman
2023-02-26 16:54   ` Slade Watkins

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