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 <[email protected]>
---
 drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c | 2 +-
 1 file changed, 1 insertion(+), 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 4a67068f4098..dd43176d7a70 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c
@@ -515,7 +515,7 @@ 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));
 }
-- 
2.34.1

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