drm/dp: Add documentation for luminance_set

Documentation for luminance_set for struct drm_edp_backlight_info
was missed which causes warnings.

Fixes: 2af612ad4290 ("drm/dp: Introduce new member in drm_backlight_info")
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@gmail.com>
Link: https://lore.kernel.org/r/20250701085054.746408-1-suraj.kandpal@intel.com

diff --git a/include/drm/display/drm_dp_helper.h b/include/drm/display/drm_dp_helper.h
index c6c2ba68fb16041c07c7a0a784fd5abc10c7c9f0..e7689cebe1c5f3e5e0d9d6f8f4f37a127732ca98 100644 (file)
--- a/include/drm/display/drm_dp_helper.h
+++ b/include/drm/display/drm_dp_helper.h
@@ -837,6 +837,7 @@ drm_dp_has_quirk(const struct drm_dp_desc *desc, enum drm_dp_quirk quirk)
  * @lsb_reg_used: Do we also write values to the DP_EDP_BACKLIGHT_BRIGHTNESS_LSB register?
  * @aux_enable: Does the panel support the AUX enable cap?
  * @aux_set: Does the panel support setting the brightness through AUX?
+ * @luminance_set: Does the panel support setting the brightness through AUX using luminance values?
  *
  * This structure contains various data about an eDP backlight, which can be populated by using
  * drm_edp_backlight_init().