Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
drm/i915/backlight: Take luminance_set into account for VESA backlight
When deciding what functions to enable to help control backlight we
used to only check aux_enable. Now with PANEL_LUMINANCE_OVERRIDE in
picture we need to take care that we do not enable PWM function if
luminance_set is set.
Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/15671
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Link: https://patch.msgid.link/20260302040613.3324049-4-suraj.kandpal@intel.com
+2
-1
+2
-1
drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c
+2
-1
drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c
···
486
486
struct intel_panel *panel = &connector->panel;
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487
struct intel_dp *intel_dp = enc_to_intel_dp(connector->encoder);
488
488
489
-
if (!panel->backlight.edp.vesa.info.aux_enable) {
489
+
if (!(panel->backlight.edp.vesa.info.aux_enable ||
490
+
panel->backlight.edp.vesa.info.luminance_set)) {
490
491
u32 pwm_level;
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if (!panel->backlight.edp.vesa.info.aux_set)