Merge branch 'drm-next-4.17' of git://people.freedesktop.org/~agd5f/linux into drm-next

- Add a PX quirk for radeon
- Fix flickering and stability issues with DC on some platforms
- Fix HDMI audio regression
- Few other misc DC and base driver fixes

* 'drm-next-4.17' of git://people.freedesktop.org/~agd5f/linux:
  Revert "drm/amd/display: disable CRTCs with NULL FB on their primary plane (V2)"
  Revert "drm/amd/display: fix dereferencing possible ERR_PTR()"
  drm/amd/display: Fix regamma not affecting full-intensity color values
  drm/amd/display: Fix FBC text console corruption
  drm/amd/display: Only register backlight device if embedded panel connected
  drm/amd/display: fix brightness level after resume from suspend
  drm/amd/display: HDMI has no sound after Panel power off/on
  drm/amdgpu: add MP1 and THM hw ip base reg offset
  drm/amdgpu: fix null pointer panic with direct fw loading on gpu reset
  drm/radeon: add PX quirk for Asus K73TK

drivers/gpu/drm/amd/amdgpu/amdgpu.h

@@ -1379,6 +1379,7 @@ enum amd_hw_ip_block_type {
 	ATHUB_HWIP,
 	NBIO_HWIP,
 	MP0_HWIP,
+	MP1_HWIP,
 	UVD_HWIP,
 	VCN_HWIP = UVD_HWIP,
 	VCE_HWIP,
@@ -1388,6 +1389,7 @@ enum amd_hw_ip_block_type {
 	SMUIO_HWIP,
 	PWR_HWIP,
 	NBIF_HWIP,
+	THM_HWIP,
 	MAX_HWIP
 };
 

drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c

@@ -505,6 +505,9 @@ static int psp_resume(void *handle)
 
 int psp_gpu_reset(struct amdgpu_device *adev)
 {
+	if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP)
+		return 0;
+
 	return psp_mode1_reset(&adev->psp);
 }
 

drivers/gpu/drm/amd/amdgpu/vega10_reg_init.c

@@ -38,6 +38,7 @@ int vega10_reg_base_init(struct amdgpu_device *adev)
 		adev->reg_offset[ATHUB_HWIP][i] = (uint32_t *)(&(ATHUB_BASE.instance[i]));
 		adev->reg_offset[NBIO_HWIP][i] = (uint32_t *)(&(NBIO_BASE.instance[i]));
 		adev->reg_offset[MP0_HWIP][i] = (uint32_t *)(&(MP0_BASE.instance[i]));
+		adev->reg_offset[MP1_HWIP][i] = (uint32_t *)(&(MP1_BASE.instance[i]));
 		adev->reg_offset[UVD_HWIP][i] = (uint32_t *)(&(UVD_BASE.instance[i]));
 		adev->reg_offset[VCE_HWIP][i] = (uint32_t *)(&(VCE_BASE.instance[i]));
 		adev->reg_offset[VCN_HWIP][i] = (uint32_t *)(&(VCN_BASE.instance[i]));
@@ -49,7 +50,7 @@ int vega10_reg_base_init(struct amdgpu_device *adev)
 		adev->reg_offset[SMUIO_HWIP][i] = (uint32_t *)(&(SMUIO_BASE.instance[i]));
 		adev->reg_offset[PWR_HWIP][i] = (uint32_t *)(&(PWR_BASE.instance[i]));
 		adev->reg_offset[NBIF_HWIP][i] = (uint32_t *)(&(NBIF_BASE.instance[i]));
-
+		adev->reg_offset[THM_HWIP][i] = (uint32_t *)(&(THM_BASE.instance[i]));
 	}
 	return 0;
 }

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

@@ -1403,6 +1403,28 @@ static int initialize_plane(struct amdgpu_display_manager *dm,
 	return ret;
 }
 
+
+static void register_backlight_device(struct amdgpu_display_manager *dm,
+				      struct dc_link *link)
+{
+#if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) ||\
+	defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE)
+
+	if ((link->connector_signal & (SIGNAL_TYPE_EDP | SIGNAL_TYPE_LVDS)) &&
+	    link->type != dc_connection_none) {
+		/* Event if registration failed, we should continue with
+		 * DM initialization because not having a backlight control
+		 * is better then a black screen.
+		 */
+		amdgpu_dm_register_backlight_device(dm);
+
+		if (dm->backlight_dev)
+			dm->backlight_link = link;
+	}
+#endif
+}
+
+
 /* In this architecture, the association
  * connector -> encoder -> crtc
  * id not really requried. The crtc and connector will hold the
@@ -1456,6 +1478,7 @@ static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev)
 
 	/* loops over all connectors on the board */
 	for (i = 0; i < link_cnt; i++) {
+		struct dc_link *link = NULL;
 
 		if (i > AMDGPU_DM_MAX_DISPLAY_INDEX) {
 			DRM_ERROR(
@@ -1482,9 +1505,14 @@ static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev)
 			goto fail;
 		}
 
-		if (dc_link_detect(dc_get_link_at_index(dm->dc, i),
-				DETECT_REASON_BOOT))
+		link = dc_get_link_at_index(dm->dc, i);
+
+		if (dc_link_detect(link, DETECT_REASON_BOOT)) {
 			amdgpu_dm_update_connector_after_detect(aconnector);
+			register_backlight_device(dm, link);
+		}
+
+
 	}
 
 	/* Software is initialized. Now we can register interrupt handlers. */
@@ -2685,7 +2713,8 @@ static void amdgpu_dm_connector_destroy(struct drm_connector *connector)
 #if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) ||\
 	defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE)
 
-	if (link->connector_signal & (SIGNAL_TYPE_EDP | SIGNAL_TYPE_LVDS)) {
+	if ((link->connector_signal & (SIGNAL_TYPE_EDP | SIGNAL_TYPE_LVDS)) &&
+	    link->type != dc_connection_none) {
 		amdgpu_dm_register_backlight_device(dm);
 
 		if (dm->backlight_dev) {
@@ -3561,6 +3590,7 @@ create_i2c(struct ddc_service *ddc_service,
 	return i2c;
 }
 
+
 /* Note: this function assumes that dc_link_detect() was called for the
  * dc_link which will be represented by this aconnector.
  */
@@ -3630,28 +3660,6 @@ static int amdgpu_dm_connector_init(struct amdgpu_display_manager *dm,
 		|| connector_type == DRM_MODE_CONNECTOR_eDP)
 		amdgpu_dm_initialize_dp_connector(dm, aconnector);
 
-#if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) ||\
-	defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE)
-
-	/* NOTE: this currently will create backlight device even if a panel
-	 * is not connected to the eDP/LVDS connector.
-	 *
-	 * This is less than ideal but we don't have sink information at this
-	 * stage since detection happens after. We can't do detection earlier
-	 * since MST detection needs connectors to be created first.
-	 */
-	if (link->connector_signal & (SIGNAL_TYPE_EDP | SIGNAL_TYPE_LVDS)) {
-		/* Event if registration failed, we should continue with
-		 * DM initialization because not having a backlight control
-		 * is better then a black screen.
-		 */
-		amdgpu_dm_register_backlight_device(dm);
-
-		if (dm->backlight_dev)
-			dm->backlight_link = link;
-	}
-#endif
-
 out_free:
 	if (res) {
 		kfree(i2c);
@@ -4840,33 +4848,6 @@ static int dm_update_planes_state(struct dc *dc,
 	return ret;
 }
 
-static int dm_atomic_check_plane_state_fb(struct drm_atomic_state *state,
-					  struct drm_crtc *crtc)
-{
-	struct drm_plane *plane;
-	struct drm_crtc_state *crtc_state;
-
-	WARN_ON(!drm_atomic_get_new_crtc_state(state, crtc));
-
-	drm_for_each_plane_mask(plane, state->dev, crtc->state->plane_mask) {
-		struct drm_plane_state *plane_state =
-			drm_atomic_get_plane_state(state, plane);
-
-		if (IS_ERR(plane_state))
-			return -EDEADLK;
-
-		crtc_state = drm_atomic_get_crtc_state(plane_state->state, crtc);
-		if (IS_ERR(crtc_state))
-			return PTR_ERR(crtc_state);
-
-		if (crtc->primary == plane && crtc_state->active) {
-			if (!plane_state->fb)
-				return -EINVAL;
-		}
-	}
-	return 0;
-}
-
 static int amdgpu_dm_atomic_check(struct drm_device *dev,
 				  struct drm_atomic_state *state)
 {
@@ -4890,10 +4871,6 @@ static int amdgpu_dm_atomic_check(struct drm_device *dev,
 		goto fail;
 
 	for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
-		ret = dm_atomic_check_plane_state_fb(state, crtc);
-		if (ret)
-			goto fail;
-
 		if (!drm_atomic_crtc_needs_modeset(new_crtc_state) &&
 		    !new_crtc_state->color_mgmt_changed)
 			continue;

drivers/gpu/drm/amd/display/dc/core/dc_link.c

@@ -1997,6 +1997,19 @@ bool dc_link_set_backlight_level(const struct dc_link *link, uint32_t level,
 	return true;
 }
 
+bool dc_link_set_abm_disable(const struct dc_link *link)
+{
+	struct dc  *core_dc = link->ctx->dc;
+	struct abm *abm = core_dc->res_pool->abm;
+
+	if ((abm == NULL) || (abm->funcs->set_backlight_level == NULL))
+		return false;
+
+	abm->funcs->set_abm_immediate_disable(abm);
+
+	return true;
+}
+
 bool dc_link_set_psr_enable(const struct dc_link *link, bool enable, bool wait)
 {
 	struct dc  *core_dc = link->ctx->dc;

drivers/gpu/drm/amd/display/dc/dc_link.h

@@ -132,6 +132,8 @@ static inline struct dc_link *dc_get_link_at_index(struct dc *dc, uint32_t link_
 bool dc_link_set_backlight_level(const struct dc_link *dc_link, uint32_t level,
 		uint32_t frame_ramp, const struct dc_stream_state *stream);
 
+bool dc_link_set_abm_disable(const struct dc_link *dc_link);
+
 bool dc_link_set_psr_enable(const struct dc_link *dc_link, bool enable, bool wait);
 
 bool dc_link_get_psr_state(const struct dc_link *dc_link, uint32_t *psr_state);

drivers/gpu/drm/amd/display/dc/dce/dce_stream_encoder.c

@@ -735,6 +735,8 @@ static void dce110_stream_encoder_update_hdmi_info_packets(
 		if (info_frame->avi.valid) {
 			const uint32_t *content =
 				(const uint32_t *) &info_frame->avi.sb[0];
+			/*we need turn on clock before programming AFMT block*/
+			REG_UPDATE(AFMT_CNTL, AFMT_AUDIO_CLOCK_EN, 1);
 
 			REG_WRITE(AFMT_AVI_INFO0, content[0]);
 

drivers/gpu/drm/amd/display/dc/dce110/dce110_compressor.c

@@ -102,6 +102,43 @@ static uint32_t align_to_chunks_number_per_line(uint32_t pixels)
 	return 256 * ((pixels + 255) / 256);
 }
 
+static void reset_lb_on_vblank(struct dc_context *ctx)
+{
+	uint32_t value, frame_count;
+	uint32_t retry = 0;
+	uint32_t status_pos =
+			dm_read_reg(ctx, mmCRTC_STATUS_POSITION);
+
+
+	/* Only if CRTC is enabled and counter is moving we wait for one frame. */
+	if (status_pos != dm_read_reg(ctx, mmCRTC_STATUS_POSITION)) {
+		/* Resetting LB on VBlank */
+		value = dm_read_reg(ctx, mmLB_SYNC_RESET_SEL);
+		set_reg_field_value(value, 3, LB_SYNC_RESET_SEL, LB_SYNC_RESET_SEL);
+		set_reg_field_value(value, 1, LB_SYNC_RESET_SEL, LB_SYNC_RESET_SEL2);
+		dm_write_reg(ctx, mmLB_SYNC_RESET_SEL, value);
+
+		frame_count = dm_read_reg(ctx, mmCRTC_STATUS_FRAME_COUNT);
+
+
+		for (retry = 100; retry > 0; retry--) {
+			if (frame_count != dm_read_reg(ctx, mmCRTC_STATUS_FRAME_COUNT))
+				break;
+			msleep(1);
+		}
+		if (!retry)
+			dm_error("Frame count did not increase for 100ms.\n");
+
+		/* Resetting LB on VBlank */
+		value = dm_read_reg(ctx, mmLB_SYNC_RESET_SEL);
+		set_reg_field_value(value, 2, LB_SYNC_RESET_SEL, LB_SYNC_RESET_SEL);
+		set_reg_field_value(value, 0, LB_SYNC_RESET_SEL, LB_SYNC_RESET_SEL2);
+		dm_write_reg(ctx, mmLB_SYNC_RESET_SEL, value);
+
+	}
+
+}
+
 static void wait_for_fbc_state_changed(
 	struct dce110_compressor *cp110,
 	bool enabled)
@@ -232,8 +269,8 @@ void dce110_compressor_disable_fbc(struct compressor *compressor)
 {
 	struct dce110_compressor *cp110 = TO_DCE110_COMPRESSOR(compressor);
 
-	if (compressor->options.bits.FBC_SUPPORT &&
-		dce110_compressor_is_fbc_enabled_in_hw(compressor, NULL)) {
+	if (compressor->options.bits.FBC_SUPPORT) {
+		if (dce110_compressor_is_fbc_enabled_in_hw(compressor, NULL)) {
 			uint32_t reg_data;
 			/* Turn off compression */
 			reg_data = dm_read_reg(compressor->ctx, mmFBC_CNTL);
@@ -246,6 +283,10 @@ void dce110_compressor_disable_fbc(struct compressor *compressor)
 
 			wait_for_fbc_state_changed(cp110, false);
 		}
+
+		/* Sync line buffer  - dce100/110 only*/
+		reset_lb_on_vblank(compressor->ctx);
+	}
 }
 
 bool dce110_compressor_is_fbc_enabled_in_hw(

drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c

@@ -453,10 +453,13 @@ dce110_translate_regamma_to_hw_format(const struct dc_transfer_func *output_tf,
 
 	} else {
 		/* 10 segments
-		 * segment is from 2^-10 to 2^0
+		 * segment is from 2^-10 to 2^1
+		 * We include an extra segment for range [2^0, 2^1). This is to
+		 * ensure that colors with normalized values of 1 don't miss the
+		 * LUT.
 		 */
 		region_start = -10;
-		region_end = 0;
+		region_end = 1;
 
 		seg_distr[0] = 4;
 		seg_distr[1] = 4;
@@ -468,7 +471,7 @@ dce110_translate_regamma_to_hw_format(const struct dc_transfer_func *output_tf,
 		seg_distr[7] = 4;
 		seg_distr[8] = 4;
 		seg_distr[9] = 4;
-		seg_distr[10] = -1;
+		seg_distr[10] = 0;
 		seg_distr[11] = -1;
 		seg_distr[12] = -1;
 		seg_distr[13] = -1;
@@ -1016,8 +1019,10 @@ void dce110_blank_stream(struct pipe_ctx *pipe_ctx)
 	struct dc_stream_state *stream = pipe_ctx->stream;
 	struct dc_link *link = stream->sink->link;
 
-	if (link->local_sink && link->local_sink->sink_signal == SIGNAL_TYPE_EDP)
+	if (link->local_sink && link->local_sink->sink_signal == SIGNAL_TYPE_EDP) {
 		link->dc->hwss.edp_backlight_control(link, false);
+		dc_link_set_abm_disable(link);
+	}
 
 	if (dc_is_dp_signal(pipe_ctx->stream->signal))
 		pipe_ctx->stream_res.stream_enc->funcs->dp_blank(pipe_ctx->stream_res.stream_enc);

drivers/gpu/drm/radeon/radeon_device.c

@@ -140,6 +140,10 @@ static struct radeon_px_quirk radeon_px_quirk_list[] = {
 	 * https://bugs.freedesktop.org/show_bug.cgi?id=101491
 	 */
 	{ PCI_VENDOR_ID_ATI, 0x6741, 0x1043, 0x2122, RADEON_PX_QUIRK_DISABLE_PX },
+	/* Asus K73TK laptop with AMD A6-3420M APU and Radeon 7670m GPU
+	 * https://bugzilla.kernel.org/show_bug.cgi?id=51381#c52
+	 */
+	{ PCI_VENDOR_ID_ATI, 0x6840, 0x1043, 0x2123, RADEON_PX_QUIRK_DISABLE_PX },
 	{ 0, 0, 0, 0, 0 },
 };