1 files changed, 204 insertions, 164 deletions

diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c
index 81d6cfbd2615..28bdb936cd1f 100644
--- a/drivers/gpu/drm/i915/display/intel_bios.c
+++ b/drivers/gpu/drm/i915/display/intel_bios.c
@@ -135,18 +135,6 @@ static u32 raw_block_offset(const void *bdb, enum bdb_block_id section_id)
 	return block - bdb;
 }
 
-/* size of the block excluding the header */
-static u32 raw_block_size(const void *bdb, enum bdb_block_id section_id)
-{
-	const void *block;
-
-	block = find_raw_section(bdb, section_id);
-	if (!block)
-		return 0;
-
-	return get_blocksize(block);
-}
-
 struct bdb_block_entry {
 	struct list_head node;
 	enum bdb_block_id section_id;
@@ -159,7 +147,7 @@ find_section(struct drm_i915_private *i915,
 {
 	struct bdb_block_entry *entry;
 
-	list_for_each_entry(entry, &i915->vbt.bdb_blocks, node) {
+	list_for_each_entry(entry, &i915->display.vbt.bdb_blocks, node) {
 		if (entry->section_id == section_id)
 			return entry->data + 3;
 	}
@@ -231,9 +219,14 @@ static bool validate_lfp_data_ptrs(const void *bdb,
 {
 	int fp_timing_size, dvo_timing_size, panel_pnp_id_size, panel_name_size;
 	int data_block_size, lfp_data_size;
+	const void *data_block;
 	int i;
 
-	data_block_size = raw_block_size(bdb, BDB_LVDS_LFP_DATA);
+	data_block = find_raw_section(bdb, BDB_LVDS_LFP_DATA);
+	if (!data_block)
+		return false;
+
+	data_block_size = get_blocksize(data_block);
 	if (data_block_size == 0)
 		return false;
 
@@ -261,21 +254,6 @@ static bool validate_lfp_data_ptrs(const void *bdb,
 	if (16 * lfp_data_size > data_block_size)
 		return false;
 
-	/*
-	 * Except for vlv/chv machines all real VBTs seem to have 6
-	 * unaccounted bytes in the fp_timing table. And it doesn't
-	 * appear to be a really intentional hole as the fp_timing
-	 * 0xffff terminator is always within those 6 missing bytes.
-	 */
-	if (fp_timing_size + dvo_timing_size + panel_pnp_id_size != lfp_data_size &&
-	    fp_timing_size + 6 + dvo_timing_size + panel_pnp_id_size != lfp_data_size)
-		return false;
-
-	if (ptrs->ptr[0].fp_timing.offset + fp_timing_size > ptrs->ptr[0].dvo_timing.offset ||
-	    ptrs->ptr[0].dvo_timing.offset + dvo_timing_size != ptrs->ptr[0].panel_pnp_id.offset ||
-	    ptrs->ptr[0].panel_pnp_id.offset + panel_pnp_id_size != lfp_data_size)
-		return false;
-
 	/* make sure the table entries have uniform size */
 	for (i = 1; i < 16; i++) {
 		if (ptrs->ptr[i].fp_timing.table_size != fp_timing_size ||
@@ -289,6 +267,23 @@ static bool validate_lfp_data_ptrs(const void *bdb,
 			return false;
 	}
 
+	/*
+	 * Except for vlv/chv machines all real VBTs seem to have 6
+	 * unaccounted bytes in the fp_timing table. And it doesn't
+	 * appear to be a really intentional hole as the fp_timing
+	 * 0xffff terminator is always within those 6 missing bytes.
+	 */
+	if (fp_timing_size + 6 + dvo_timing_size + panel_pnp_id_size == lfp_data_size)
+		fp_timing_size += 6;
+
+	if (fp_timing_size + dvo_timing_size + panel_pnp_id_size != lfp_data_size)
+		return false;
+
+	if (ptrs->ptr[0].fp_timing.offset + fp_timing_size != ptrs->ptr[0].dvo_timing.offset ||
+	    ptrs->ptr[0].dvo_timing.offset + dvo_timing_size != ptrs->ptr[0].panel_pnp_id.offset ||
+	    ptrs->ptr[0].panel_pnp_id.offset + panel_pnp_id_size != lfp_data_size)
+		return false;
+
 	/* make sure the tables fit inside the data block */
 	for (i = 0; i < 16; i++) {
 		if (ptrs->ptr[i].fp_timing.offset + fp_timing_size > data_block_size ||
@@ -300,6 +295,15 @@ static bool validate_lfp_data_ptrs(const void *bdb,
 	if (ptrs->panel_name.offset + 16 * panel_name_size > data_block_size)
 		return false;
 
+	/* make sure fp_timing terminators are present at expected locations */
+	for (i = 0; i < 16; i++) {
+		const u16 *t = data_block + ptrs->ptr[i].fp_timing.offset +
+			fp_timing_size - 2;
+
+		if (*t != 0xffff)
+			return false;
+	}
+
 	return true;
 }
 
@@ -333,18 +337,6 @@ static bool fixup_lfp_data_ptrs(const void *bdb, void *ptrs_block)
 	return validate_lfp_data_ptrs(bdb, ptrs);
 }
 
-static const void *find_fp_timing_terminator(const u8 *data, int size)
-{
-	int i;
-
-	for (i = 0; i < size - 1; i++) {
-		if (data[i] == 0xff && data[i+1] == 0xff)
-			return &data[i];
-	}
-
-	return NULL;
-}
-
 static int make_lfp_data_ptr(struct lvds_lfp_data_ptr_table *table,
 			     int table_size, int total_size)
 {
@@ -368,11 +360,22 @@ static void next_lfp_data_ptr(struct lvds_lfp_data_ptr_table *next,
 static void *generate_lfp_data_ptrs(struct drm_i915_private *i915,
 				    const void *bdb)
 {
-	int i, size, table_size, block_size, offset;
-	const void *t0, *t1, *block;
+	int i, size, table_size, block_size, offset, fp_timing_size;
 	struct bdb_lvds_lfp_data_ptrs *ptrs;
+	const void *block;
 	void *ptrs_block;
 
+	/*
+	 * The hardcoded fp_timing_size is only valid for
+	 * modernish VBTs. All older VBTs definitely should
+	 * include block 41 and thus we don't need to
+	 * generate one.
+	 */
+	if (i915->display.vbt.version < 155)
+		return NULL;
+
+	fp_timing_size = 38;
+
 	block = find_raw_section(bdb, BDB_LVDS_LFP_DATA);
 	if (!block)
 		return NULL;
@@ -381,17 +384,8 @@ static void *generate_lfp_data_ptrs(struct drm_i915_private *i915,
 
 	block_size = get_blocksize(block);
 
-	size = block_size;
-	t0 = find_fp_timing_terminator(block, size);
-	if (!t0)
-		return NULL;
-
-	size -= t0 - block - 2;
-	t1 = find_fp_timing_terminator(t0 + 2, size);
-	if (!t1)
-		return NULL;
-
-	size = t1 - t0;
+	size = fp_timing_size + sizeof(struct lvds_dvo_timing) +
+		sizeof(struct lvds_pnp_id);
 	if (size * 16 > block_size)
 		return NULL;
 
@@ -409,7 +403,7 @@ static void *generate_lfp_data_ptrs(struct drm_i915_private *i915,
 	table_size = sizeof(struct lvds_dvo_timing);
 	size = make_lfp_data_ptr(&ptrs->ptr[0].dvo_timing, table_size, size);
 
-	table_size = t0 - block + 2;
+	table_size = fp_timing_size;
 	size = make_lfp_data_ptr(&ptrs->ptr[0].fp_timing, table_size, size);
 
 	if (ptrs->ptr[0].fp_timing.table_size)
@@ -424,14 +418,14 @@ static void *generate_lfp_data_ptrs(struct drm_i915_private *i915,
 		return NULL;
 	}
 
-	size = t1 - t0;
+	size = fp_timing_size + sizeof(struct lvds_dvo_timing) +
+		sizeof(struct lvds_pnp_id);
 	for (i = 1; i < 16; i++) {
 		next_lfp_data_ptr(&ptrs->ptr[i].fp_timing, &ptrs->ptr[i-1].fp_timing, size);
 		next_lfp_data_ptr(&ptrs->ptr[i].dvo_timing, &ptrs->ptr[i-1].dvo_timing, size);
 		next_lfp_data_ptr(&ptrs->ptr[i].panel_pnp_id, &ptrs->ptr[i-1].panel_pnp_id, size);
 	}
 
-	size = t1 - t0;
 	table_size = sizeof(struct lvds_lfp_panel_name);
 
 	if (16 * (size + table_size) <= block_size) {
@@ -479,6 +473,13 @@ init_bdb_block(struct drm_i915_private *i915,
 
 	block_size = get_blocksize(block);
 
+	/*
+	 * Version number and new block size are considered
+	 * part of the header for MIPI sequenece block v3+.
+	 */
+	if (section_id == BDB_MIPI_SEQUENCE && *(const u8 *)block >= 3)
+		block_size += 5;
+
 	entry = kzalloc(struct_size(entry, data, max(min_size, block_size) + 3),
 			GFP_KERNEL);
 	if (!entry) {
@@ -501,7 +502,7 @@ init_bdb_block(struct drm_i915_private *i915,
 		return;
 	}
 
-	list_add_tail(&entry->node, &i915->vbt.bdb_blocks);
+	list_add_tail(&entry->node, &i915->display.vbt.bdb_blocks);
 }
 
 static void init_bdb_blocks(struct drm_i915_private *i915,
@@ -604,6 +605,19 @@ get_lfp_data_tail(const struct bdb_lvds_lfp_data *data,
 		return NULL;
 }
 
+static void dump_pnp_id(struct drm_i915_private *i915,
+			const struct lvds_pnp_id *pnp_id,
+			const char *name)
+{
+	u16 mfg_name = be16_to_cpu((__force __be16)pnp_id->mfg_name);
+	char vend[4];
+
+	drm_dbg_kms(&i915->drm, "%s PNPID mfg: %s (0x%x), prod: %u, serial: %u, week: %d, year: %d\n",
+		    name, drm_edid_decode_mfg_id(mfg_name, vend),
+		    pnp_id->mfg_name, pnp_id->product_code, pnp_id->serial,
+		    pnp_id->mfg_week, pnp_id->mfg_year + 1990);
+}
+
 static int opregion_get_panel_type(struct drm_i915_private *i915,
 				   const struct intel_bios_encoder_data *devdata,
 				   const struct edid *edid)
@@ -655,6 +669,8 @@ static int pnpid_get_panel_type(struct drm_i915_private *i915,
 	edid_id_nodate.mfg_week = 0;
 	edid_id_nodate.mfg_year = 0;
 
+	dump_pnp_id(i915, edid_id, "EDID");
+
 	ptrs = find_section(i915, BDB_LVDS_LFP_DATA_PTRS);
 	if (!ptrs)
 		return -1;
@@ -861,6 +877,7 @@ parse_lfp_data(struct drm_i915_private *i915,
 	const struct bdb_lvds_lfp_data *data;
 	const struct bdb_lvds_lfp_data_tail *tail;
 	const struct bdb_lvds_lfp_data_ptrs *ptrs;
+	const struct lvds_pnp_id *pnp_id;
 	int panel_type = panel->vbt.panel_type;
 
 	ptrs = find_section(i915, BDB_LVDS_LFP_DATA_PTRS);
@@ -874,11 +891,18 @@ parse_lfp_data(struct drm_i915_private *i915,
 	if (!panel->vbt.lfp_lvds_vbt_mode)
 		parse_lfp_panel_dtd(i915, panel, data, ptrs);
 
+	pnp_id = get_lvds_pnp_id(data, ptrs, panel_type);
+	dump_pnp_id(i915, pnp_id, "Panel");
+
 	tail = get_lfp_data_tail(data, ptrs);
 	if (!tail)
 		return;
 
-	if (i915->vbt.version >= 188) {
+	drm_dbg_kms(&i915->drm, "Panel name: %.*s\n",
+		    (int)sizeof(tail->panel_name[0].name),
+		    tail->panel_name[panel_type].name);
+
+	if (i915->display.vbt.version >= 188) {
 		panel->vbt.seamless_drrs_min_refresh_rate =
 			tail->seamless_drrs_min_refresh_rate[panel_type];
 		drm_dbg_kms(&i915->drm,
@@ -904,7 +928,7 @@ parse_generic_dtd(struct drm_i915_private *i915,
 	 * first on VBT >= 229, but still fall back to trying the old LFP
 	 * block if that fails.
 	 */
-	if (i915->vbt.version < 229)
+	if (i915->display.vbt.version < 229)
 		return;
 
 	generic_dtd = find_section(i915, BDB_GENERIC_DTD);
@@ -1008,12 +1032,12 @@ parse_lfp_backlight(struct drm_i915_private *i915,
 	}
 
 	panel->vbt.backlight.type = INTEL_BACKLIGHT_DISPLAY_DDI;
-	if (i915->vbt.version >= 191) {
+	if (i915->display.vbt.version >= 191) {
 		size_t exp_size;
 
-		if (i915->vbt.version >= 236)
+		if (i915->display.vbt.version >= 236)
 			exp_size = sizeof(struct bdb_lfp_backlight_data);
-		else if (i915->vbt.version >= 234)
+		else if (i915->display.vbt.version >= 234)
 			exp_size = EXP_BDB_LFP_BL_DATA_SIZE_REV_234;
 		else
 			exp_size = EXP_BDB_LFP_BL_DATA_SIZE_REV_191;
@@ -1030,14 +1054,14 @@ parse_lfp_backlight(struct drm_i915_private *i915,
 	panel->vbt.backlight.pwm_freq_hz = entry->pwm_freq_hz;
 	panel->vbt.backlight.active_low_pwm = entry->active_low_pwm;
 
-	if (i915->vbt.version >= 234) {
+	if (i915->display.vbt.version >= 234) {
 		u16 min_level;
 		bool scale;
 
 		level = backlight_data->brightness_level[panel_type].level;
 		min_level = backlight_data->brightness_min_level[panel_type].level;
 
-		if (i915->vbt.version >= 236)
+		if (i915->display.vbt.version >= 236)
 			scale = backlight_data->brightness_precision_bits[panel_type] == 16;
 		else
 			scale = level > 255;
@@ -1134,37 +1158,37 @@ parse_general_features(struct drm_i915_private *i915)
 	if (!general)
 		return;
 
-	i915->vbt.int_tv_support = general->int_tv_support;
+	i915->display.vbt.int_tv_support = general->int_tv_support;
 	/* int_crt_support can't be trusted on earlier platforms */
-	if (i915->vbt.version >= 155 &&
+	if (i915->display.vbt.version >= 155 &&
 	    (HAS_DDI(i915) || IS_VALLEYVIEW(i915)))
-		i915->vbt.int_crt_support = general->int_crt_support;
-	i915->vbt.lvds_use_ssc = general->enable_ssc;
-	i915->vbt.lvds_ssc_freq =
+		i915->display.vbt.int_crt_support = general->int_crt_support;
+	i915->display.vbt.lvds_use_ssc = general->enable_ssc;
+	i915->display.vbt.lvds_ssc_freq =
 		intel_bios_ssc_frequency(i915, general->ssc_freq);
-	i915->vbt.display_clock_mode = general->display_clock_mode;
-	i915->vbt.fdi_rx_polarity_inverted = general->fdi_rx_polarity_inverted;
-	if (i915->vbt.version >= 181) {
-		i915->vbt.orientation = general->rotate_180 ?
+	i915->display.vbt.display_clock_mode = general->display_clock_mode;
+	i915->display.vbt.fdi_rx_polarity_inverted = general->fdi_rx_polarity_inverted;
+	if (i915->display.vbt.version >= 181) {
+		i915->display.vbt.orientation = general->rotate_180 ?
 			DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP :
 			DRM_MODE_PANEL_ORIENTATION_NORMAL;
 	} else {
-		i915->vbt.orientation = DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
+		i915->display.vbt.orientation = DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
 	}
 
-	if (i915->vbt.version >= 249 && general->afc_startup_config) {
-		i915->vbt.override_afc_startup = true;
-		i915->vbt.override_afc_startup_val = general->afc_startup_config == 0x1 ? 0x0 : 0x7;
+	if (i915->display.vbt.version >= 249 && general->afc_startup_config) {
+		i915->display.vbt.override_afc_startup = true;
+		i915->display.vbt.override_afc_startup_val = general->afc_startup_config == 0x1 ? 0x0 : 0x7;
 	}
 
 	drm_dbg_kms(&i915->drm,
 		    "BDB_GENERAL_FEATURES int_tv_support %d int_crt_support %d lvds_use_ssc %d lvds_ssc_freq %d display_clock_mode %d fdi_rx_polarity_inverted %d\n",
-		    i915->vbt.int_tv_support,
-		    i915->vbt.int_crt_support,
-		    i915->vbt.lvds_use_ssc,
-		    i915->vbt.lvds_ssc_freq,
-		    i915->vbt.display_clock_mode,
-		    i915->vbt.fdi_rx_polarity_inverted);
+		    i915->display.vbt.int_tv_support,
+		    i915->display.vbt.int_crt_support,
+		    i915->display.vbt.lvds_use_ssc,
+		    i915->display.vbt.lvds_ssc_freq,
+		    i915->display.vbt.display_clock_mode,
+		    i915->display.vbt.fdi_rx_polarity_inverted);
 }
 
 static const struct child_device_config *
@@ -1190,7 +1214,7 @@ parse_sdvo_device_mapping(struct drm_i915_private *i915)
 		return;
 	}
 
-	list_for_each_entry(devdata, &i915->vbt.display_devices, node) {
+	list_for_each_entry(devdata, &i915->display.vbt.display_devices, node) {
 		child = &devdata->child;
 
 		if (child->slave_addr != SLAVE_ADDR1 &&
@@ -1214,7 +1238,7 @@ parse_sdvo_device_mapping(struct drm_i915_private *i915)
 			    child->slave_addr,
 			    (child->dvo_port == DEVICE_PORT_DVOB) ?
 			    "SDVOB" : "SDVOC");
-		mapping = &i915->vbt.sdvo_mappings[child->dvo_port - 1];
+		mapping = &i915->display.vbt.sdvo_mappings[child->dvo_port - 1];
 		if (!mapping->initialized) {
 			mapping->dvo_port = child->dvo_port;
 			mapping->slave_addr = child->slave_addr;
@@ -1265,7 +1289,7 @@ parse_driver_features(struct drm_i915_private *i915)
 		 * interpretation, but real world VBTs seem to.
 		 */
 		if (driver->lvds_config != BDB_DRIVER_FEATURE_INT_LVDS)
-			i915->vbt.int_lvds_support = 0;
+			i915->display.vbt.int_lvds_support = 0;
 	} else {
 		/*
 		 * FIXME it's not clear which BDB version has the LVDS config
@@ -1278,10 +1302,10 @@ parse_driver_features(struct drm_i915_private *i915)
 		 * in the wild with the bits correctly populated. Version
 		 * 108 (on i85x) does not have the bits correctly populated.
 		 */
-		if (i915->vbt.version >= 134 &&
+		if (i915->display.vbt.version >= 134 &&
 		    driver->lvds_config != BDB_DRIVER_FEATURE_INT_LVDS &&
 		    driver->lvds_config != BDB_DRIVER_FEATURE_INT_SDVO_LVDS)
-			i915->vbt.int_lvds_support = 0;
+			i915->display.vbt.int_lvds_support = 0;
 	}
 }
 
@@ -1295,7 +1319,7 @@ parse_panel_driver_features(struct drm_i915_private *i915,
 	if (!driver)
 		return;
 
-	if (i915->vbt.version < 228) {
+	if (i915->display.vbt.version < 228) {
 		drm_dbg_kms(&i915->drm, "DRRS State Enabled:%d\n",
 			    driver->drrs_enabled);
 		/*
@@ -1328,7 +1352,7 @@ parse_power_conservation_features(struct drm_i915_private *i915,
 
 	panel->vbt.vrr = true; /* matches Windows behaviour */
 
-	if (i915->vbt.version < 228)
+	if (i915->display.vbt.version < 228)
 		return;
 
 	power = find_section(i915, BDB_LFP_POWER);
@@ -1354,10 +1378,10 @@ parse_power_conservation_features(struct drm_i915_private *i915,
 			panel->vbt.drrs_type = DRRS_TYPE_NONE;
 	}
 
-	if (i915->vbt.version >= 232)
+	if (i915->display.vbt.version >= 232)
 		panel->vbt.edp.hobl = panel_bool(power->hobl, panel_type);
 
-	if (i915->vbt.version >= 233)
+	if (i915->display.vbt.version >= 233)
 		panel->vbt.vrr = panel_bool(power->vrr_feature_enabled,
 					    panel_type);
 }
@@ -1393,7 +1417,7 @@ parse_edp(struct drm_i915_private *i915,
 
 	panel->vbt.edp.pps = *edp_pps;
 
-	if (i915->vbt.version >= 224) {
+	if (i915->display.vbt.version >= 224) {
 		panel->vbt.edp.rate =
 			edp->edp_fast_link_training_rate[panel_type] * 20;
 	} else {
@@ -1472,7 +1496,7 @@ parse_edp(struct drm_i915_private *i915,
 		break;
 	}
 
-	if (i915->vbt.version >= 173) {
+	if (i915->display.vbt.version >= 173) {
 		u8 vswing;
 
 		/* Don't read from VBT if module parameter has valid value*/
@@ -1488,7 +1512,7 @@ parse_edp(struct drm_i915_private *i915,
 	panel->vbt.edp.drrs_msa_timing_delay =
 		panel_bits(edp->sdrrs_msa_timing_delay, panel_type, 2);
 
-	if (i915->vbt.version >= 244)
+	if (i915->display.vbt.version >= 244)
 		panel->vbt.edp.max_link_rate =
 			edp->edp_max_port_link_rate[panel_type] * 20;
 }
@@ -1520,7 +1544,7 @@ parse_psr(struct drm_i915_private *i915,
 	 * New psr options 0=500us, 1=100us, 2=2500us, 3=0us
 	 * Old decimal value is wake up time in multiples of 100 us.
 	 */
-	if (i915->vbt.version >= 205 &&
+	if (i915->display.vbt.version >= 205 &&
 	    (DISPLAY_VER(i915) >= 9 && !IS_BROXTON(i915))) {
 		switch (psr_table->tp1_wakeup_time) {
 		case 0:
@@ -1566,7 +1590,7 @@ parse_psr(struct drm_i915_private *i915,
 		panel->vbt.psr.tp2_tp3_wakeup_time_us = psr_table->tp2_tp3_wakeup_time * 100;
 	}
 
-	if (i915->vbt.version >= 226) {
+	if (i915->display.vbt.version >= 226) {
 		u32 wakeup_time = psr->psr2_tp2_tp3_wakeup_time;
 
 		wakeup_time = panel_bits(wakeup_time, panel_type, 2);
@@ -1598,7 +1622,7 @@ static void parse_dsi_backlight_ports(struct drm_i915_private *i915,
 {
 	enum port port_bc = DISPLAY_VER(i915) >= 11 ? PORT_B : PORT_C;
 
-	if (!panel->vbt.dsi.config->dual_link || i915->vbt.version < 197) {
+	if (!panel->vbt.dsi.config->dual_link || i915->display.vbt.version < 197) {
 		panel->vbt.dsi.bl_ports = BIT(port);
 		if (panel->vbt.dsi.config->cabc_supported)
 			panel->vbt.dsi.cabc_ports = BIT(port);
@@ -2053,7 +2077,7 @@ parse_compression_parameters(struct drm_i915_private *i915)
 	u16 block_size;
 	int index;
 
-	if (i915->vbt.version < 198)
+	if (i915->display.vbt.version < 198)
 		return;
 
 	params = find_section(i915, BDB_COMPRESSION_PARAMETERS);
@@ -2073,7 +2097,7 @@ parse_compression_parameters(struct drm_i915_private *i915)
 		}
 	}
 
-	list_for_each_entry(devdata, &i915->vbt.display_devices, node) {
+	list_for_each_entry(devdata, &i915->display.vbt.display_devices, node) {
 		child = &devdata->child;
 
 		if (!child->compression_enable)
@@ -2207,7 +2231,7 @@ static enum port get_port_by_ddc_pin(struct drm_i915_private *i915, u8 ddc_pin)
 		return PORT_NONE;
 
 	for_each_port(port) {
-		devdata = i915->vbt.ports[port];
+		devdata = i915->display.vbt.ports[port];
 
 		if (devdata && ddc_pin == devdata->child.ddc_pin)
 			return port;
@@ -2256,7 +2280,7 @@ static void sanitize_ddc_pin(struct intel_bios_encoder_data *devdata,
 	 * there are real machines (eg. Asrock B250M-HDV) where VBT has both
 	 * port A and port E with the same AUX ch and we must pick port E :(
 	 */
-	child = &i915->vbt.ports[p]->child;
+	child = &i915->display.vbt.ports[p]->child;
 
 	child->device_type &= ~DEVICE_TYPE_TMDS_DVI_SIGNALING;
 	child->device_type |= DEVICE_TYPE_NOT_HDMI_OUTPUT;
@@ -2273,7 +2297,7 @@ static enum port get_port_by_aux_ch(struct drm_i915_private *i915, u8 aux_ch)
 		return PORT_NONE;
 
 	for_each_port(port) {
-		devdata = i915->vbt.ports[port];
+		devdata = i915->display.vbt.ports[port];
 
 		if (devdata && aux_ch == devdata->child.aux_channel)
 			return port;
@@ -2308,7 +2332,7 @@ static void sanitize_aux_ch(struct intel_bios_encoder_data *devdata,
 	 * there are real machines (eg. Asrock B250M-HDV) where VBT has both
 	 * port A and port E with the same AUX ch and we must pick port E :(
 	 */
-	child = &i915->vbt.ports[p]->child;
+	child = &i915->display.vbt.ports[p]->child;
 
 	child->device_type &= ~DEVICE_TYPE_DISPLAYPORT_OUTPUT;
 	child->aux_channel = 0;
@@ -2482,15 +2506,23 @@ static int parse_bdb_216_dp_max_link_rate(const int vbt_max_link_rate)
 
 static int _intel_bios_dp_max_link_rate(const struct intel_bios_encoder_data *devdata)
 {
-	if (!devdata || devdata->i915->vbt.version < 216)
+	if (!devdata || devdata->i915->display.vbt.version < 216)
 		return 0;
 
-	if (devdata->i915->vbt.version >= 230)
+	if (devdata->i915->display.vbt.version >= 230)
 		return parse_bdb_230_dp_max_link_rate(devdata->child.dp_max_link_rate);
 	else
 		return parse_bdb_216_dp_max_link_rate(devdata->child.dp_max_link_rate);
 }
 
+static int _intel_bios_dp_max_lane_count(const struct intel_bios_encoder_data *devdata)
+{
+	if (!devdata || devdata->i915->display.vbt.version < 244)
+		return 0;
+
+	return devdata->child.dp_max_lane_count + 1;
+}
+
 static void sanitize_device_type(struct intel_bios_encoder_data *devdata,
 				 enum port port)
 {
@@ -2546,7 +2578,7 @@ intel_bios_encoder_supports_edp(const struct intel_bios_encoder_data *devdata)
 
 static int _intel_bios_hdmi_level_shift(const struct intel_bios_encoder_data *devdata)
 {
-	if (!devdata || devdata->i915->vbt.version < 158)
+	if (!devdata || devdata->i915->display.vbt.version < 158)
 		return -1;
 
 	return devdata->child.hdmi_level_shifter_value;
@@ -2554,7 +2586,7 @@ static int _intel_bios_hdmi_level_shift(const struct intel_bios_encoder_data *de
 
 static int _intel_bios_max_tmds_clock(const struct intel_bios_encoder_data *devdata)
 {
-	if (!devdata || devdata->i915->vbt.version < 204)
+	if (!devdata || devdata->i915->display.vbt.version < 204)
 		return 0;
 
 	switch (devdata->child.hdmi_max_data_rate) {
@@ -2663,7 +2695,7 @@ static void parse_ddi_port(struct intel_bios_encoder_data *devdata)
 		return;
 	}
 
-	if (i915->vbt.ports[port]) {
+	if (i915->display.vbt.ports[port]) {
 		drm_dbg_kms(&i915->drm,
 			    "More than one child device for port %c in VBT, using the first.\n",
 			    port_name(port));
@@ -2678,7 +2710,7 @@ static void parse_ddi_port(struct intel_bios_encoder_data *devdata)
 	if (intel_bios_encoder_supports_dp(devdata))
 		sanitize_aux_ch(devdata, port);
 
-	i915->vbt.ports[port] = devdata;
+	i915->display.vbt.ports[port] = devdata;
 }
 
 static bool has_ddi_port_info(struct drm_i915_private *i915)
@@ -2694,12 +2726,12 @@ static void parse_ddi_ports(struct drm_i915_private *i915)
 	if (!has_ddi_port_info(i915))
 		return;
 
-	list_for_each_entry(devdata, &i915->vbt.display_devices, node)
+	list_for_each_entry(devdata, &i915->display.vbt.display_devices, node)
 		parse_ddi_port(devdata);
 
 	for_each_port(port) {
-		if (i915->vbt.ports[port])
-			print_ddi_port(i915->vbt.ports[port], port);
+		if (i915->display.vbt.ports[port])
+			print_ddi_port(i915->display.vbt.ports[port], port);
 	}
 }
 
@@ -2732,33 +2764,33 @@ parse_general_definitions(struct drm_i915_private *i915)
 	bus_pin = defs->crt_ddc_gmbus_pin;
 	drm_dbg_kms(&i915->drm, "crt_ddc_bus_pin: %d\n", bus_pin);
 	if (intel_gmbus_is_valid_pin(i915, bus_pin))
-		i915->vbt.crt_ddc_pin = bus_pin;
+		i915->display.vbt.crt_ddc_pin = bus_pin;
 
-	if (i915->vbt.version < 106) {
+	if (i915->display.vbt.version < 106) {
 		expected_size = 22;
-	} else if (i915->vbt.version < 111) {
+	} else if (i915->display.vbt.version < 111) {
 		expected_size = 27;
-	} else if (i915->vbt.version < 195) {
+	} else if (i915->display.vbt.version < 195) {
 		expected_size = LEGACY_CHILD_DEVICE_CONFIG_SIZE;
-	} else if (i915->vbt.version == 195) {
+	} else if (i915->display.vbt.version == 195) {
 		expected_size = 37;
-	} else if (i915->vbt.version <= 215) {
+	} else if (i915->display.vbt.version <= 215) {
 		expected_size = 38;
-	} else if (i915->vbt.version <= 237) {
+	} else if (i915->display.vbt.version <= 237) {
 		expected_size = 39;
 	} else {
 		expected_size = sizeof(*child);
 		BUILD_BUG_ON(sizeof(*child) < 39);
 		drm_dbg(&i915->drm,
 			"Expected child device config size for VBT version %u not known; assuming %u\n",
-			i915->vbt.version, expected_size);
+			i915->display.vbt.version, expected_size);
 	}
 
 	/* Flag an error for unexpected size, but continue anyway. */
 	if (defs->child_dev_size != expected_size)
 		drm_err(&i915->drm,
 			"Unexpected child device config size %u (expected %u for VBT version %u)\n",
-			defs->child_dev_size, expected_size, i915->vbt.version);
+			defs->child_dev_size, expected_size, i915->display.vbt.version);
 
 	/* The legacy sized child device config is the minimum we need. */
 	if (defs->child_dev_size < LEGACY_CHILD_DEVICE_CONFIG_SIZE) {
@@ -2794,10 +2826,10 @@ parse_general_definitions(struct drm_i915_private *i915)
 		memcpy(&devdata->child, child,
 		       min_t(size_t, defs->child_dev_size, sizeof(*child)));
 
-		list_add_tail(&devdata->node, &i915->vbt.display_devices);
+		list_add_tail(&devdata->node, &i915->display.vbt.display_devices);
 	}
 
-	if (list_empty(&i915->vbt.display_devices))
+	if (list_empty(&i915->display.vbt.display_devices))
 		drm_dbg_kms(&i915->drm,
 			    "no child dev is parsed from VBT\n");
 }
@@ -2806,25 +2838,25 @@ parse_general_definitions(struct drm_i915_private *i915)
 static void
 init_vbt_defaults(struct drm_i915_private *i915)
 {
-	i915->vbt.crt_ddc_pin = GMBUS_PIN_VGADDC;
+	i915->display.vbt.crt_ddc_pin = GMBUS_PIN_VGADDC;
 
 	/* general features */
-	i915->vbt.int_tv_support = 1;
-	i915->vbt.int_crt_support = 1;
+	i915->display.vbt.int_tv_support = 1;
+	i915->display.vbt.int_crt_support = 1;
 
 	/* driver features */
-	i915->vbt.int_lvds_support = 1;
+	i915->display.vbt.int_lvds_support = 1;
 
 	/* Default to using SSC */
-	i915->vbt.lvds_use_ssc = 1;
+	i915->display.vbt.lvds_use_ssc = 1;
 	/*
 	 * Core/SandyBridge/IvyBridge use alternative (120MHz) reference
 	 * clock for LVDS.
 	 */
-	i915->vbt.lvds_ssc_freq = intel_bios_ssc_frequency(i915,
-							   !HAS_PCH_SPLIT(i915));
+	i915->display.vbt.lvds_ssc_freq = intel_bios_ssc_frequency(i915,
+								   !HAS_PCH_SPLIT(i915));
 	drm_dbg_kms(&i915->drm, "Set default to SSC at %d kHz\n",
-		    i915->vbt.lvds_ssc_freq);
+		    i915->display.vbt.lvds_ssc_freq);
 }
 
 /* Common defaults which may be overridden by VBT. */
@@ -2885,7 +2917,7 @@ init_vbt_missing_defaults(struct drm_i915_private *i915)
 		if (port == PORT_A)
 			child->device_type |= DEVICE_TYPE_INTERNAL_CONNECTOR;
 
-		list_add_tail(&devdata->node, &i915->vbt.display_devices);
+		list_add_tail(&devdata->node, &i915->display.vbt.display_devices);
 
 		drm_dbg_kms(&i915->drm,
 			    "Generating default VBT child device with type 0x04%x on port %c\n",
@@ -2893,7 +2925,7 @@ init_vbt_missing_defaults(struct drm_i915_private *i915)
 	}
 
 	/* Bypass some minimum baseline VBT version checks */
-	i915->vbt.version = 155;
+	i915->display.vbt.version = 155;
 }
 
 static const struct bdb_header *get_bdb_header(const struct vbt_header *vbt)
@@ -3080,12 +3112,12 @@ err_unmap_oprom:
  */
 void intel_bios_init(struct drm_i915_private *i915)
 {
-	const struct vbt_header *vbt = i915->opregion.vbt;
+	const struct vbt_header *vbt = i915->display.opregion.vbt;
 	struct vbt_header *oprom_vbt = NULL;
 	const struct bdb_header *bdb;
 
-	INIT_LIST_HEAD(&i915->vbt.display_devices);
-	INIT_LIST_HEAD(&i915->vbt.bdb_blocks);
+	INIT_LIST_HEAD(&i915->display.vbt.display_devices);
+	INIT_LIST_HEAD(&i915->display.vbt.bdb_blocks);
 
 	if (!HAS_DISPLAY(i915)) {
 		drm_dbg_kms(&i915->drm,
@@ -3113,11 +3145,11 @@ void intel_bios_init(struct drm_i915_private *i915)
 		goto out;
 
 	bdb = get_bdb_header(vbt);
-	i915->vbt.version = bdb->version;
+	i915->display.vbt.version = bdb->version;
 
 	drm_dbg_kms(&i915->drm,
 		    "VBT signature \"%.*s\", BDB version %d\n",
-		    (int)sizeof(vbt->signature), vbt->signature, i915->vbt.version);
+		    (int)sizeof(vbt->signature), vbt->signature, i915->display.vbt.version);
 
 	init_bdb_blocks(i915, bdb);
 
@@ -3174,13 +3206,13 @@ void intel_bios_driver_remove(struct drm_i915_private *i915)
 	struct intel_bios_encoder_data *devdata, *nd;
 	struct bdb_block_entry *entry, *ne;
 
-	list_for_each_entry_safe(devdata, nd, &i915->vbt.display_devices, node) {
+	list_for_each_entry_safe(devdata, nd, &i915->display.vbt.display_devices, node) {
 		list_del(&devdata->node);
 		kfree(devdata->dsc);
 		kfree(devdata);
 	}
 
-	list_for_each_entry_safe(entry, ne, &i915->vbt.bdb_blocks, node) {
+	list_for_each_entry_safe(entry, ne, &i915->display.vbt.bdb_blocks, node) {
 		list_del(&entry->node);
 		kfree(entry);
 	}
@@ -3214,13 +3246,13 @@ bool intel_bios_is_tv_present(struct drm_i915_private *i915)
 	const struct intel_bios_encoder_data *devdata;
 	const struct child_device_config *child;
 
-	if (!i915->vbt.int_tv_support)
+	if (!i915->display.vbt.int_tv_support)
 		return false;
 
-	if (list_empty(&i915->vbt.display_devices))
+	if (list_empty(&i915->display.vbt.display_devices))
 		return true;
 
-	list_for_each_entry(devdata, &i915->vbt.display_devices, node) {
+	list_for_each_entry(devdata, &i915->display.vbt.display_devices, node) {
 		child = &devdata->child;
 
 		/*
@@ -3257,10 +3289,10 @@ bool intel_bios_is_lvds_present(struct drm_i915_private *i915, u8 *i2c_pin)
 	const struct intel_bios_encoder_data *devdata;
 	const struct child_device_config *child;
 
-	if (list_empty(&i915->vbt.display_devices))
+	if (list_empty(&i915->display.vbt.display_devices))
 		return true;
 
-	list_for_each_entry(devdata, &i915->vbt.display_devices, node) {
+	list_for_each_entry(devdata, &i915->display.vbt.display_devices, node) {
 		child = &devdata->child;
 
 		/* If the device type is not LFP, continue.
@@ -3287,7 +3319,7 @@ bool intel_bios_is_lvds_present(struct drm_i915_private *i915, u8 *i2c_pin)
 		 * additional data.  Trust that if the VBT was written into
 		 * the OpRegion then they have validated the LVDS's existence.
 		 */
-		if (i915->opregion.vbt)
+		if (i915->display.opregion.vbt)
 			return true;
 	}
 
@@ -3306,7 +3338,7 @@ bool intel_bios_is_port_present(struct drm_i915_private *i915, enum port port)
 	if (WARN_ON(!has_ddi_port_info(i915)))
 		return true;
 
-	return i915->vbt.ports[port];
+	return i915->display.vbt.ports[port];
 }
 
 /**
@@ -3366,7 +3398,7 @@ bool intel_bios_is_dsi_present(struct drm_i915_private *i915,
 	const struct child_device_config *child;
 	u8 dvo_port;
 
-	list_for_each_entry(devdata, &i915->vbt.display_devices, node) {
+	list_for_each_entry(devdata, &i915->display.vbt.display_devices, node) {
 		child = &devdata->child;
 
 		if (!(child->device_type & DEVICE_TYPE_MIPI_OUTPUT))
@@ -3465,7 +3497,7 @@ bool intel_bios_get_dsc_params(struct intel_encoder *encoder,
 	const struct intel_bios_encoder_data *devdata;
 	const struct child_device_config *child;
 
-	list_for_each_entry(devdata, &i915->vbt.display_devices, node) {
+	list_for_each_entry(devdata, &i915->display.vbt.display_devices, node) {
 		child = &devdata->child;
 
 		if (!(child->device_type & DEVICE_TYPE_MIPI_OUTPUT))
@@ -3496,7 +3528,7 @@ bool
 intel_bios_is_port_hpd_inverted(const struct drm_i915_private *i915,
 				enum port port)
 {
-	const struct intel_bios_encoder_data *devdata = i915->vbt.ports[port];
+	const struct intel_bios_encoder_data *devdata = i915->display.vbt.ports[port];
 
 	if (drm_WARN_ON_ONCE(&i915->drm,
 			     !IS_GEMINILAKE(i915) && !IS_BROXTON(i915)))
@@ -3516,7 +3548,7 @@ bool
 intel_bios_is_lspcon_present(const struct drm_i915_private *i915,
 			     enum port port)
 {
-	const struct intel_bios_encoder_data *devdata = i915->vbt.ports[port];
+	const struct intel_bios_encoder_data *devdata = i915->display.vbt.ports[port];
 
 	return HAS_LSPCON(i915) && devdata && devdata->child.lspcon;
 }
@@ -3532,7 +3564,7 @@ bool
 intel_bios_is_lane_reversal_needed(const struct drm_i915_private *i915,
 				   enum port port)
 {
-	const struct intel_bios_encoder_data *devdata = i915->vbt.ports[port];
+	const struct intel_bios_encoder_data *devdata = i915->display.vbt.ports[port];
 
 	return devdata && devdata->child.lane_reversal;
 }
@@ -3540,7 +3572,7 @@ intel_bios_is_lane_reversal_needed(const struct drm_i915_private *i915,
 enum aux_ch intel_bios_port_aux_ch(struct drm_i915_private *i915,
 				   enum port port)
 {
-	const struct intel_bios_encoder_data *devdata = i915->vbt.ports[port];
+	const struct intel_bios_encoder_data *devdata = i915->display.vbt.ports[port];
 	enum aux_ch aux_ch;
 
 	if (!devdata || !devdata->child.aux_channel) {
@@ -3634,7 +3666,7 @@ enum aux_ch intel_bios_port_aux_ch(struct drm_i915_private *i915,
 int intel_bios_max_tmds_clock(struct intel_encoder *encoder)
 {
 	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
-	const struct intel_bios_encoder_data *devdata = i915->vbt.ports[encoder->port];
+	const struct intel_bios_encoder_data *devdata = i915->display.vbt.ports[encoder->port];
 
 	return _intel_bios_max_tmds_clock(devdata);
 }
@@ -3643,14 +3675,14 @@ int intel_bios_max_tmds_clock(struct intel_encoder *encoder)
 int intel_bios_hdmi_level_shift(struct intel_encoder *encoder)
 {
 	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
-	const struct intel_bios_encoder_data *devdata = i915->vbt.ports[encoder->port];
+	const struct intel_bios_encoder_data *devdata = i915->display.vbt.ports[encoder->port];
 
 	return _intel_bios_hdmi_level_shift(devdata);
 }
 
 int intel_bios_encoder_dp_boost_level(const struct intel_bios_encoder_data *devdata)
 {
-	if (!devdata || devdata->i915->vbt.version < 196 || !devdata->child.iboost)
+	if (!devdata || devdata->i915->display.vbt.version < 196 || !devdata->child.iboost)
 		return 0;
 
 	return translate_iboost(devdata->child.dp_iboost_level);
@@ -3658,7 +3690,7 @@ int intel_bios_encoder_dp_boost_level(const struct intel_bios_encoder_data *devd
 
 int intel_bios_encoder_hdmi_boost_level(const struct intel_bios_encoder_data *devdata)
 {
-	if (!devdata || devdata->i915->vbt.version < 196 || !devdata->child.iboost)
+	if (!devdata || devdata->i915->display.vbt.version < 196 || !devdata->child.iboost)
 		return 0;
 
 	return translate_iboost(devdata->child.hdmi_iboost_level);
@@ -3667,15 +3699,23 @@ int intel_bios_encoder_hdmi_boost_level(const struct intel_bios_encoder_data *de
 int intel_bios_dp_max_link_rate(struct intel_encoder *encoder)
 {
 	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
-	const struct intel_bios_encoder_data *devdata = i915->vbt.ports[encoder->port];
+	const struct intel_bios_encoder_data *devdata = i915->display.vbt.ports[encoder->port];
 
 	return _intel_bios_dp_max_link_rate(devdata);
 }
 
+int intel_bios_dp_max_lane_count(struct intel_encoder *encoder)
+{
+	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+	const struct intel_bios_encoder_data *devdata = i915->display.vbt.ports[encoder->port];
+
+	return _intel_bios_dp_max_lane_count(devdata);
+}
+
 int intel_bios_alternate_ddc_pin(struct intel_encoder *encoder)
 {
 	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
-	const struct intel_bios_encoder_data *devdata = i915->vbt.ports[encoder->port];
+	const struct intel_bios_encoder_data *devdata = i915->display.vbt.ports[encoder->port];
 
 	if (!devdata || !devdata->child.ddc_pin)
 		return 0;
@@ -3685,16 +3725,16 @@ int intel_bios_alternate_ddc_pin(struct intel_encoder *encoder)
 
 bool intel_bios_encoder_supports_typec_usb(const struct intel_bios_encoder_data *devdata)
 {
-	return devdata->i915->vbt.version >= 195 && devdata->child.dp_usb_type_c;
+	return devdata->i915->display.vbt.version >= 195 && devdata->child.dp_usb_type_c;
 }
 
 bool intel_bios_encoder_supports_tbt(const struct intel_bios_encoder_data *devdata)
 {
-	return devdata->i915->vbt.version >= 209 && devdata->child.tbt;
+	return devdata->i915->display.vbt.version >= 209 && devdata->child.tbt;
 }
 
 const struct intel_bios_encoder_data *
 intel_bios_encoder_data_lookup(struct drm_i915_private *i915, enum port port)
 {
-	return i915->vbt.ports[port];
+	return i915->display.vbt.ports[port];
 }