1 files changed, 7 insertions, 59 deletions

diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c
index c93040e60d04..c841c273222e 100644
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -32,6 +32,8 @@
 #include <drm/drm_file.h>
 #include <drm/radeon_drm.h>
 
+#include <acpi/video.h>
+
 #include "atom.h"
 #include "radeon_atombios.h"
 #include "radeon.h"
@@ -209,6 +211,11 @@ void radeon_atom_backlight_init(struct radeon_encoder *radeon_encoder,
 	if (!(rdev->mode_info.firmware_flags & ATOM_BIOS_INFO_BL_CONTROLLED_BY_GPU))
 		return;
 
+	if (!acpi_video_backlight_use_native()) {
+		drm_info(dev, "Skipping radeon atom DIG backlight registration\n");
+		return;
+	}
+
 	pdata = kmalloc(sizeof(struct radeon_backlight_privdata), GFP_KERNEL);
 	if (!pdata) {
 		DRM_ERROR("Memory allocation failed\n");
@@ -667,15 +674,7 @@ atombios_get_encoder_mode(struct drm_encoder *encoder)
 	struct drm_connector *connector;
 	struct radeon_connector *radeon_connector;
 	struct radeon_connector_atom_dig *dig_connector;
-	struct radeon_encoder_atom_dig *dig_enc;
 
-	if (radeon_encoder_is_digital(encoder)) {
-		dig_enc = radeon_encoder->enc_priv;
-		if (dig_enc->active_mst_links)
-			return ATOM_ENCODER_MODE_DP_MST;
-	}
-	if (radeon_encoder->is_mst_encoder || radeon_encoder->offset)
-		return ATOM_ENCODER_MODE_DP_MST;
 	/* dp bridges are always DP */
 	if (radeon_encoder_get_dp_bridge_encoder_id(encoder) != ENCODER_OBJECT_ID_NONE)
 		return ATOM_ENCODER_MODE_DP;
@@ -1723,10 +1722,6 @@ radeon_atom_encoder_dpms_dig(struct drm_encoder *encoder, int mode)
 	case DRM_MODE_DPMS_SUSPEND:
 	case DRM_MODE_DPMS_OFF:
 
-		/* don't power off encoders with active MST links */
-		if (dig->active_mst_links)
-			return;
-
 		if (ASIC_IS_DCE4(rdev)) {
 			if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(encoder)) && connector)
 				atombios_dig_encoder_setup(encoder, ATOM_ENCODER_CMD_DP_VIDEO_OFF, 0);
@@ -1992,53 +1987,6 @@ atombios_set_encoder_crtc_source(struct drm_encoder *encoder)
 	radeon_atombios_encoder_crtc_scratch_regs(encoder, radeon_crtc->crtc_id);
 }
 
-void
-atombios_set_mst_encoder_crtc_source(struct drm_encoder *encoder, int fe)
-{
-	struct drm_device *dev = encoder->dev;
-	struct radeon_device *rdev = dev->dev_private;
-	struct radeon_crtc *radeon_crtc = to_radeon_crtc(encoder->crtc);
-	int index = GetIndexIntoMasterTable(COMMAND, SelectCRTC_Source);
-	uint8_t frev, crev;
-	union crtc_source_param args;
-
-	memset(&args, 0, sizeof(args));
-
-	if (!atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev, &crev))
-		return;
-
-	if (frev != 1 && crev != 2)
-		DRM_ERROR("Unknown table for MST %d, %d\n", frev, crev);
-
-	args.v2.ucCRTC = radeon_crtc->crtc_id;
-	args.v2.ucEncodeMode = ATOM_ENCODER_MODE_DP_MST;
-
-	switch (fe) {
-	case 0:
-		args.v2.ucEncoderID = ASIC_INT_DIG1_ENCODER_ID;
-		break;
-	case 1:
-		args.v2.ucEncoderID = ASIC_INT_DIG2_ENCODER_ID;
-		break;
-	case 2:
-		args.v2.ucEncoderID = ASIC_INT_DIG3_ENCODER_ID;
-		break;
-	case 3:
-		args.v2.ucEncoderID = ASIC_INT_DIG4_ENCODER_ID;
-		break;
-	case 4:
-		args.v2.ucEncoderID = ASIC_INT_DIG5_ENCODER_ID;
-		break;
-	case 5:
-		args.v2.ucEncoderID = ASIC_INT_DIG6_ENCODER_ID;
-		break;
-	case 6:
-		args.v2.ucEncoderID = ASIC_INT_DIG7_ENCODER_ID;
-		break;
-	}
-	atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
-}
-
 static void
 atombios_apply_encoder_quirks(struct drm_encoder *encoder,
 			      struct drm_display_mode *mode)