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Suraj Kandpal
a411ea4a87
Turns out some panels allow only AUX based backlight by just setting the DP_EDP_BACKLIGHT_BRIGHTNESS_AUX_SET_CAP and not setting the DP_EDP_BACKLIGHT_AUX_ENABLE_CAP. If we make DP_EDP_BACKLIGHT_AUX_ENABLE_CAP a necessity for AUX based DPCD backlight these panels loose the ability to manipulate backlight via AUX, especially ones with no PWM controller. Remove this check from function so that panels who do not advertise DP_EDP_BACKLIGHT_AUX_ENABLE_CAP but advertise DP_EDP_BACKLIGHT_BRIGHTNESS_AUX_SET_CAP are able to manipulate backlight again. Fixes:ed8be780bd("drm/i915/backlight: Fix VESA backlight possible check condition") Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/work_items/16507 Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com> Reviewed-by: Michał Grzelak <michal.grzelak@intel.com> Link: https://patch.msgid.link/20260716030959.436430-1-suraj.kandpal@intel.com (cherry picked from commit7d594b24c9) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>