1 files changed, 56 insertions, 9 deletions

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 261a62e15934..0454da505687 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -3424,10 +3424,6 @@ static struct drm_display_mode *drm_mode_detailed(struct drm_connector *connecto
 			    connector->base.id, connector->name);
 		return NULL;
 	}
-	if (!(pt->misc & DRM_EDID_PT_SEPARATE_SYNC)) {
-		drm_dbg_kms(dev, "[CONNECTOR:%d:%s] Composite sync not supported\n",
-			    connector->base.id, connector->name);
-	}
 
 	/* it is incorrect if hsync/vsync width is zero */
 	if (!hsync_pulse_width || !vsync_pulse_width) {
@@ -3474,10 +3470,27 @@ static struct drm_display_mode *drm_mode_detailed(struct drm_connector *connecto
 	if (info->quirks & EDID_QUIRK_DETAILED_SYNC_PP) {
 		mode->flags |= DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC;
 	} else {
-		mode->flags |= (pt->misc & DRM_EDID_PT_HSYNC_POSITIVE) ?
-			DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC;
-		mode->flags |= (pt->misc & DRM_EDID_PT_VSYNC_POSITIVE) ?
-			DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC;
+		switch (pt->misc & DRM_EDID_PT_SYNC_MASK) {
+		case DRM_EDID_PT_ANALOG_CSYNC:
+		case DRM_EDID_PT_BIPOLAR_ANALOG_CSYNC:
+			drm_dbg_kms(dev, "[CONNECTOR:%d:%s] Analog composite sync!\n",
+				    connector->base.id, connector->name);
+			mode->flags |= DRM_MODE_FLAG_CSYNC | DRM_MODE_FLAG_NCSYNC;
+			break;
+		case DRM_EDID_PT_DIGITAL_CSYNC:
+			drm_dbg_kms(dev, "[CONNECTOR:%d:%s] Digital composite sync!\n",
+				    connector->base.id, connector->name);
+			mode->flags |= DRM_MODE_FLAG_CSYNC;
+			mode->flags |= (pt->misc & DRM_EDID_PT_HSYNC_POSITIVE) ?
+				DRM_MODE_FLAG_PCSYNC : DRM_MODE_FLAG_NCSYNC;
+			break;
+		case DRM_EDID_PT_DIGITAL_SEPARATE_SYNC:
+			mode->flags |= (pt->misc & DRM_EDID_PT_HSYNC_POSITIVE) ?
+				DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC;
+			mode->flags |= (pt->misc & DRM_EDID_PT_VSYNC_POSITIVE) ?
+				DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC;
+			break;
+		}
 	}
 
 set_size:
@@ -6433,6 +6446,29 @@ static void drm_reset_display_info(struct drm_connector *connector)
 	info->quirks = 0;
 }
 
+static void update_displayid_info(struct drm_connector *connector,
+				  const struct drm_edid *drm_edid)
+{
+	struct drm_display_info *info = &connector->display_info;
+	const struct displayid_block *block;
+	struct displayid_iter iter;
+
+	displayid_iter_edid_begin(drm_edid, &iter);
+	displayid_iter_for_each(block, &iter) {
+		if (displayid_version(&iter) == DISPLAY_ID_STRUCTURE_VER_20 &&
+		    (displayid_primary_use(&iter) == PRIMARY_USE_HEAD_MOUNTED_VR ||
+		     displayid_primary_use(&iter) == PRIMARY_USE_HEAD_MOUNTED_AR))
+			info->non_desktop = true;
+
+		/*
+		 * We're only interested in the base section here, no need to
+		 * iterate further.
+		 */
+		break;
+	}
+	displayid_iter_end(&iter);
+}
+
 static void update_display_info(struct drm_connector *connector,
 				const struct drm_edid *drm_edid)
 {
@@ -6463,6 +6499,8 @@ static void update_display_info(struct drm_connector *connector,
 	info->color_formats |= DRM_COLOR_FORMAT_RGB444;
 	drm_parse_cea_ext(connector, drm_edid);
 
+	update_displayid_info(connector, drm_edid);
+
 	/*
 	 * Digital sink with "DFP 1.x compliant TMDS" according to EDID 1.3?
 	 *
@@ -7242,6 +7280,15 @@ static void drm_parse_tiled_block(struct drm_connector *connector,
 	}
 }
 
+static bool displayid_is_tiled_block(const struct displayid_iter *iter,
+				     const struct displayid_block *block)
+{
+	return (displayid_version(iter) == DISPLAY_ID_STRUCTURE_VER_12 &&
+		block->tag == DATA_BLOCK_TILED_DISPLAY) ||
+		(displayid_version(iter) == DISPLAY_ID_STRUCTURE_VER_20 &&
+		 block->tag == DATA_BLOCK_2_TILED_DISPLAY_TOPOLOGY);
+}
+
 static void _drm_update_tile_info(struct drm_connector *connector,
 				  const struct drm_edid *drm_edid)
 {
@@ -7252,7 +7299,7 @@ static void _drm_update_tile_info(struct drm_connector *connector,
 
 	displayid_iter_edid_begin(drm_edid, &iter);
 	displayid_iter_for_each(block, &iter) {
-		if (block->tag == DATA_BLOCK_TILED_DISPLAY)
+		if (displayid_is_tiled_block(&iter, block))
 			drm_parse_tiled_block(connector, block);
 	}
 	displayid_iter_end(&iter);