drm/i915/backlight: Enable nits based luminance

Enable nits based luminance by writing the PANEL_LUMINANCE_CONTROL
bit and set the correct register to change brightness.

Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Tested-by: Ben Kao <ben.kao@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250206063253.2827017-9-suraj.kandpal@intel.com
This commit is contained in:
Suraj Kandpal 2025-02-06 12:02:53 +05:30
commit a5efc8dcfe