drm: panel-backlight-quirks: Convert brightness quirk to generic structure

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Currently, the brightness quirk is limited to minimum brightness only.
Refactor it to a structure, so that more quirks can be added in the
future. Reserve 0 value for "no quirk", and use u16 to allow minimum
brightness up to 255.

Tested-by: Philip Müller <philm@manjaro.org>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev>
Link: https://lore.kernel.org/r/20250829145541.512671-3-lkml@antheas.dev
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org>

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This commit is contained in:

Antheas Kapenekakis 2025-08-29 16:55:37 +02:00 • committed by Mario Limonciello (AMD)

parent 9931e4be11

commit 6eee1ef9e5

3 changed files with 35 additions and 25 deletions

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12

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

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41

drivers/gpu/drm/drm_panel_backlight_quirks.c

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