From: Aaron Ma Date: Sat, 23 Aug 2025 12:16:47 +0000 (+0800) Subject: drm/i915/backlight: Honor VESA eDP backlight luminance control capability X-Git-Tag: v6.17-rc7~16^2~3^2 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=35e526398bd0faddef3396d71760e4c5ea75868f;p=thirdparty%2Fkernel%2Fstable.git drm/i915/backlight: Honor VESA eDP backlight luminance control capability The VESA AUX backlight fails to be enable luminance based backlight mainpulation becaused luminance_set is false by default. Fix it by using luminance support control capabitliy. Fixes: e13af5166a359 ("drm/i915/backlight: Use drm helper to initialize edp backlight") Signed-off-by: Aaron Ma Reviewed-by: Suraj Kandpal Signed-off-by: Suraj Kandpal Link: https://lore.kernel.org/r/20250823121647.275834-1-aaron.ma@canonical.com (cherry picked from commit 72136efb875d8438c20b9c8ab72945d474933471) Signed-off-by: Tvrtko Ursulin --- diff --git a/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c b/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c index 41228478b21c7..0a3a3f6a5f9d8 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c +++ b/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c @@ -546,7 +546,7 @@ static int intel_dp_aux_vesa_setup_backlight(struct intel_connector *connector, luminance_range->max_luminance, panel->vbt.backlight.pwm_freq_hz, intel_dp->edp_dpcd, ¤t_level, ¤t_mode, - false); + panel->backlight.edp.vesa.luminance_control_support); if (ret < 0) return ret;