drm/i915/backlight: Remove try_vesa_interface

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Some panels need VESA DPCD AUX backlight but VBT says otherwise.
This is why we try with Intel backlight interface over VESA backlight
interface. This causes a blankout on such panels without any fallback
mechanism.
Remove try_vesa_interface and use VESA AUX backlight interface as a
fallback mechanism.
While at in sneak in a small comment cleanup too.

Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/15679
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Link: https://patch.msgid.link/20260224031322.2568874-1-suraj.kandpal@intel.com

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Suraj Kandpal 2026-02-24 08:43:22 +05:30

parent 4226479f91

commit 40d2f58209

1 changed files with 7 additions and 12 deletions

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drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c

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