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drm: panel-backlight-quirks: Add Framework 13 matte panel

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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@weissschuh.net>
Tested-by: Dustin L. Howett <dustin@howett.net>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241111-amdgpu-min-backlight-quirk-v7-3-f662851fda69@weissschuh.net
This commit is contained in:
Thomas Weißschuh
2024-11-11 19:09:37 +01:00
committed by Mario Limonciello
parent c2753b2471
commit 916ecc0db3
1 changed files with 8 additions and 0 deletions
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drivers/gpu/drm/drm_panel_backlight_quirks.c
+8
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@@ -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,