28  * proprietary DP AUX backlight interface, and the standard VESA backlight
30  * advertise support for the standard VESA backlight interface when they
453 /* VESA backlight callbacks */
462 	if (panel->backlight.edp.vesa.luminance_control_support) {  in intel_dp_aux_vesa_get_backlight()
496 			"%s: Failed to set VESA Aux Luminance: %d\n",  in intel_dp_aux_vesa_set_luminance()
511 	if (panel->backlight.edp.vesa.luminance_control_support) {  in intel_dp_aux_vesa_set_backlight()
516 	if (!panel->backlight.edp.vesa.info.aux_set) {  in intel_dp_aux_vesa_set_backlight()
522 	drm_edp_backlight_set_level(&intel_dp->aux, &panel->backlight.edp.vesa.info, level);  in intel_dp_aux_vesa_set_backlight()
534 	if (panel->backlight.edp.vesa.luminance_control_support) {  in intel_dp_aux_vesa_enable_backlight()
545 	if (!panel->backlight.edp.vesa.info.aux_enable) {  in intel_dp_aux_vesa_enable_backlight()
548 		if (!panel->backlight.edp.vesa.info.aux_set)  in intel_dp_aux_vesa_enable_backlight()
557 	drm_edp_backlight_enable(&intel_dp->aux, &panel->backlight.edp.vesa.info, level);  in intel_dp_aux_vesa_enable_backlight()
567 	if (panel->backlight.edp.vesa.luminance_control_support)  in intel_dp_aux_vesa_disable_backlight()
570 	drm_edp_backlight_disable(&intel_dp->aux, &panel->backlight.edp.vesa.info);  in intel_dp_aux_vesa_disable_backlight()
572 	if (!panel->backlight.edp.vesa.info.aux_enable)  in intel_dp_aux_vesa_disable_backlight()
588 	if (panel->backlight.edp.vesa.luminance_control_support) {  in intel_dp_aux_vesa_setup_backlight()
599 			    "[CONNECTOR:%d:%s] AUX VESA Nits backlight level is controlled through DPCD\n",  in intel_dp_aux_vesa_setup_backlight()
602 		ret = drm_edp_backlight_init(&intel_dp->aux, &panel->backlight.edp.vesa.info,  in intel_dp_aux_vesa_setup_backlight()
609 			    "[CONNECTOR:%d:%s] AUX VESA backlight enable is controlled through %s\n",  in intel_dp_aux_vesa_setup_backlight()
611 			    dpcd_vs_pwm_str(panel->backlight.edp.vesa.info.aux_enable));  in intel_dp_aux_vesa_setup_backlight()
613 			    "[CONNECTOR:%d:%s] AUX VESA backlight level is controlled through %s\n",  in intel_dp_aux_vesa_setup_backlight()
615 			    dpcd_vs_pwm_str(panel->backlight.edp.vesa.info.aux_set));  in intel_dp_aux_vesa_setup_backlight()
617 		if (!panel->backlight.edp.vesa.info.aux_set ||  in intel_dp_aux_vesa_setup_backlight()
618 		    !panel->backlight.edp.vesa.info.aux_enable) {  in intel_dp_aux_vesa_setup_backlight()
628 		if (panel->backlight.edp.vesa.info.aux_set) {  in intel_dp_aux_vesa_setup_backlight()
629 			panel->backlight.max = panel->backlight.edp.vesa.info.max;  in intel_dp_aux_vesa_setup_backlight()
653 		    "[CONNECTOR:%d:%s] Using AUX VESA interface for backlight control\n",  in intel_dp_aux_vesa_setup_backlight()
670 		panel->backlight.edp.vesa.luminance_control_support = true;  in intel_dp_aux_supports_vesa_backlight()
739 	/* For eDP 1.5 and above we are supposed to use VESA interface for brightness control */  in intel_dp_aux_init_backlight_funcs()
746 	 * the VESA interface. However, other GPUs (such as Nvidia's) will always use the VESA  in intel_dp_aux_init_backlight_funcs()
751 	 * interfaces, the VESA backlight interface will stop working once we've programmed the  in intel_dp_aux_init_backlight_funcs()
754 	 * interfaces is to probe for Intel's first, and VESA's second.  in intel_dp_aux_init_backlight_funcs()
765 		drm_dbg_kms(dev, "[CONNECTOR:%d:%s] Using VESA eDP backlight controls\n",  in intel_dp_aux_init_backlight_funcs()