This is a note to let you know that I've just added the patch titled
drm: simpledrm: fix wrong unit with pixel clock
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-simpledrm-fix-wrong-unit-with-pixel-clock.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit bf92850745f3f6f1826ac0a940bded44aac536ad
Author: Alejandro Concepcion-Rodriguez <asconcepcion@xxxxxxxx>
Date: Sun Dec 12 16:06:02 2021 +0000
drm: simpledrm: fix wrong unit with pixel clock
[ Upstream commit 5cf06065bd1f7b94fbb80e7eeb033899f77ab5ba ]
Pixel clock has to be set in kHz.
Signed-off-by: Alejandro Concepcion-Rodriguez <asconcepcion@xxxxxxxx>
Fixes: 11e8f5fd223b ("drm: Add simpledrm driver")
Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/6f8554ef-1305-0dda-821c-f7d2e5644a48@xxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/tiny/simpledrm.c b/drivers/gpu/drm/tiny/simpledrm.c
index 481b48bde0473..5a6e89825bc2f 100644
--- a/drivers/gpu/drm/tiny/simpledrm.c
+++ b/drivers/gpu/drm/tiny/simpledrm.c
@@ -458,7 +458,7 @@ static struct drm_display_mode simpledrm_mode(unsigned int width,
{
struct drm_display_mode mode = { SIMPLEDRM_MODE(width, height) };
- mode.clock = 60 /* Hz */ * mode.hdisplay * mode.vdisplay;
+ mode.clock = mode.hdisplay * mode.vdisplay * 60 / 1000 /* kHz */;
drm_mode_set_name(&mode);
return mode;
