From e2b83593f6bced361cf3a45e6f290b5124527e74 Mon Sep 17 00:00:00 2001 From: Suraj Kandpal Date: Mon, 2 Mar 2026 09:36:09 +0530 Subject: [PATCH] drm/i915/backlight: Check luminance_set when disabling PWM via AUX VESA backlight When deciding what if PWM funcs need to be disabled take into account luminance_set too. We do this since it is also used to decide if we are enabling PWM backlight funcs or not. Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/15671 Signed-off-by: Suraj Kandpal Reviewed-by: Arun R Murthy Link: https://patch.msgid.link/20260302040613.3324049-5-suraj.kandpal@intel.com --- drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) 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 b72535f89382..8d7c5089fb1c 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c +++ b/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c @@ -511,7 +511,8 @@ static void intel_dp_aux_vesa_disable_backlight(const struct drm_connector_state drm_edp_backlight_disable(&intel_dp->aux, &panel->backlight.edp.vesa.info); - if (!panel->backlight.edp.vesa.info.aux_enable) + if (!(panel->backlight.edp.vesa.info.aux_enable || + panel->backlight.edp.vesa.info.luminance_set)) panel->backlight.pwm_funcs->disable(old_conn_state, intel_backlight_invert_pwm_level(connector, 0)); }