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From: Frank Oltmanns <>
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 <>
Subject: [PATCH 0/1] drm/panel: st7703: Fix vertical refresh rate of XBD599
Date: Sun, 19 Feb 2023 12:45:52 +0100	[thread overview]
Message-ID: <> (raw)

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:

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



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(-)


             reply	other threads:[~2023-02-19 11:46 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-19 11:45 Frank Oltmanns [this message]
2023-02-19 11:45 ` [PATCH 1/1] drm/panel: st7703: Fix vertical refresh rate of XBD599 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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