linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Frank Oltmanns <frank@oltmanns.dev>
To: "Guido Günther" <agx@sigxcpu.org>,
	"Purism Kernel Team" <kernel@puri.sm>,
	"Ondrej Jirman" <megous@megous.com>,
	"Thierry Reding" <thierry.reding@gmail.com>,
	"Sam Ravnborg" <sam@ravnborg.org>,
	"David Airlie" <airlied@gmail.com>,
	"Daniel Vetter" <daniel@ffwll.ch>,
	dri-devel@lists.freedesktop.org (open list:DRM PANEL DRIVERS),
	linux-kernel@vger.kernel.org (open list)
Cc: Frank Oltmanns <frank@oltmanns.dev>
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: <20230219114553.288057-1-frank@oltmanns.dev> (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:
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


             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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20230219114553.288057-1-frank@oltmanns.dev \
    --to=frank@oltmanns.dev \
    --cc=agx@sigxcpu.org \
    --cc=airlied@gmail.com \
    --cc=daniel@ffwll.ch \
    --cc=dri-devel@lists.freedesktop.org \
    --cc=kernel@puri.sm \
    --cc=linux-kernel@vger.kernel.org \
    --cc=megous@megous.com \
    --cc=sam@ravnborg.org \
    --cc=thierry.reding@gmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).