This is a note to let you know that I've just added the patch titled
drm: panel-backlight-quirks: Add Framework 13 matte panel
to the 6.13-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-panel-backlight-quirks-add-framework-13-matte-pa.patch
and it can be found in the queue-6.13 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit e72ee80fbd88b2d99007f8d79507aef609a5868a
Author: Thomas Weißschuh <linux@xxxxxxxxxxxxxx>
Date: Mon Nov 11 19:09:37 2024 +0100
drm: panel-backlight-quirks: Add Framework 13 matte panel
[ Upstream commit 916ecc0db336768d80e14ef28a8c64a775274f95 ]
The value of "min_input_signal" returned from ATIF on a Framework AMD 13
is "12". This leads to a fairly bright minimum display backlight.
Add a quirk to override that the minimum backlight PWM to "0" which
leads to a much lower minimum brightness, which is still visible.
Tested on a Framework AMD 13 BIOS 3.05 with the matte panel.
Link: https://community.frame.work/t/25711/9
Link: https://community.frame.work/t/47036
Signed-off-by: Thomas Weißschuh <linux@xxxxxxxxxxxxxx>
Tested-by: Dustin L. Howett <dustin@xxxxxxxxxx>
Reviewed-by: Mario Limonciello <mario.limonciello@xxxxxxx>
Reviewed-by: Harry Wentland <harry.wentland@xxxxxxx>
Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20241111-amdgpu-min-backlight-quirk-v7-3-f662851fda69@xxxxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/drm_panel_backlight_quirks.c b/drivers/gpu/drm/drm_panel_backlight_quirks.c
index 6b8bbed77c7f1..f2aefff618ddb 100644
--- a/drivers/gpu/drm/drm_panel_backlight_quirks.c
+++ b/drivers/gpu/drm/drm_panel_backlight_quirks.c
@@ -17,6 +17,14 @@ struct drm_panel_min_backlight_quirk {
};
static const struct drm_panel_min_backlight_quirk drm_panel_min_backlight_quirks[] = {
+ /* 13 inch matte panel */
+ {
+ .dmi_match.field = DMI_BOARD_VENDOR,
+ .dmi_match.value = "Framework",
+ .ident.panel_id = drm_edid_encode_panel_id('B', 'O', 'E', 0x0bca),
+ .ident.name = "NE135FBM-N41",
+ .min_brightness = 0,
+ },
};
static bool drm_panel_min_backlight_quirk_matches(const struct drm_panel_min_backlight_quirk *quirk,
