drm/radeon: drop dce6_dp_enable

It's mostly duplicated with evergreen_dp_enable. This
is a prerequisite for fix implemented in another patch.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

drivers/gpu/drm/radeon/dce6_afmt.c

@@ -295,28 +295,3 @@ void dce6_dp_audio_set_dto(struct radeon_device *rdev,
 		WREG32(DCCG_AUDIO_DTO1_MODULE, clock);
 	}
 }
-
-void dce6_dp_enable(struct drm_encoder *encoder, bool enable)
-{
-	struct drm_device *dev = encoder->dev;
-	struct radeon_device *rdev = dev->dev_private;
-	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
-	struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
-
-	if (!dig || !dig->afmt)
-		return;
-
-	if (enable) {
-		WREG32(EVERGREEN_DP_SEC_TIMESTAMP + dig->afmt->offset,
-		       EVERGREEN_DP_SEC_TIMESTAMP_MODE(1));
-		WREG32(EVERGREEN_DP_SEC_CNTL + dig->afmt->offset,
-		       EVERGREEN_DP_SEC_ASP_ENABLE |		/* Audio packet transmission */
-		       EVERGREEN_DP_SEC_ATP_ENABLE |		/* Audio timestamp packet transmission */
-		       EVERGREEN_DP_SEC_AIP_ENABLE |		/* Audio infoframe packet transmission */
-		       EVERGREEN_DP_SEC_STREAM_ENABLE);	/* Master enable for secondary stream engine */
-	} else {
-		WREG32(EVERGREEN_DP_SEC_CNTL + dig->afmt->offset, 0);
-	}
-
-	dig->afmt->enabled = enable;
-}

drivers/gpu/drm/radeon/evergreen_hdmi.c

@@ -437,7 +437,7 @@ void evergreen_dp_enable(struct drm_encoder *encoder, bool enable)
 		WREG32(EVERGREEN_DP_SEC_TIMESTAMP + dig->afmt->offset,
 		       EVERGREEN_DP_SEC_TIMESTAMP_MODE(1));
 
-		if (radeon_connector->con_priv) {
+		if (!ASIC_IS_DCE6(rdev) && radeon_connector->con_priv) {
 			dig_connector = radeon_connector->con_priv;
 			val = RREG32(EVERGREEN_DP_SEC_AUD_N + dig->afmt->offset);
 			val &= ~EVERGREEN_DP_SEC_N_BASE_MULTIPLE(0xf);

drivers/gpu/drm/radeon/radeon_audio.c

@@ -102,7 +102,6 @@ static void radeon_audio_dp_mode_set(struct drm_encoder *encoder,
 void r600_hdmi_enable(struct drm_encoder *encoder, bool enable);
 void evergreen_hdmi_enable(struct drm_encoder *encoder, bool enable);
 void evergreen_dp_enable(struct drm_encoder *encoder, bool enable);
-void dce6_dp_enable(struct drm_encoder *encoder, bool enable);
 
 static const u32 pin_offsets[7] =
 {
@@ -240,7 +239,7 @@ static struct radeon_audio_funcs dce6_dp_funcs = {
 	.set_avi_packet = evergreen_set_avi_packet,
 	.set_audio_packet = dce4_set_audio_packet,
 	.mode_set = radeon_audio_dp_mode_set,
-	.dpms = dce6_dp_enable,
+	.dpms = evergreen_dp_enable,
 };
 
 static void radeon_audio_interface_init(struct radeon_device *rdev)