diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 344d8c1..5a7fc9b 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -4916,6 +4916,64 @@ void drm_set_preferred_mode(struct drm_connector *connector,
 EXPORT_SYMBOL(drm_set_preferred_mode);
 
 /**
+ * drm_hdmi_infoframe_set_hdr_metadata() - fill an HDMI AVI infoframe with
+ *                                         HDR metadata from userspace
+ * @frame: HDMI AVI infoframe
+ * @hdr_source_metadata: hdr_source_metadata info from userspace
+ *
+ * Return: 0 on success or a negative error code on failure.
+ */
+int
+drm_hdmi_infoframe_set_hdr_metadata(struct hdmi_drm_infoframe *frame,
+				    void *hdr_metadata)
+{
+	struct hdr_static_metadata *hdr_source_metadata;
+	int err, i;
+
+	if (!frame || !hdr_metadata)
+		return -EINVAL;
+
+	err = hdmi_drm_infoframe_init(frame);
+	if (err < 0)
+		return err;
+
+	DRM_DEBUG_KMS("type = %x\n", frame->type);
+
+	hdr_source_metadata = (struct hdr_static_metadata *)hdr_metadata;
+
+	frame->length = sizeof(struct hdr_static_metadata);
+
+
+	frame->eotf = hdr_source_metadata->eotf;
+	frame->metadata_type = hdr_source_metadata->metadata_type;
+
+	for (i = 0; i < 3; i++) {
+		frame->display_primaries[i].x =
+			hdr_source_metadata->display_primaries[i].x;
+		frame->display_primaries[i].y =
+			hdr_source_metadata->display_primaries[i].y;
+	}
+
+	frame->white_point.x = hdr_source_metadata->white_point.x;
+	frame->white_point.y = hdr_source_metadata->white_point.y;
+
+	frame->max_mastering_display_luminance =
+		hdr_source_metadata->max_mastering_display_luminance;
+	frame->min_mastering_display_luminance =
+		hdr_source_metadata->min_mastering_display_luminance;
+
+	frame->max_cll = hdr_source_metadata->max_cll;
+	frame->max_fall = hdr_source_metadata->max_fall;
+
+	hdmi_infoframe_log(KERN_CRIT, NULL,
+			   (union hdmi_infoframe *)frame);
+
+	return 0;
+}
+EXPORT_SYMBOL(drm_hdmi_infoframe_set_hdr_metadata);
+
+
+/**
  * drm_hdmi_avi_infoframe_from_display_mode() - fill an HDMI AVI infoframe with
  *                                              data from a DRM display mode
  * @frame: HDMI AVI infoframe
diff --git a/drivers/video/hdmi.c b/drivers/video/hdmi.c
index 799ae49..0937c8c 100644
--- a/drivers/video/hdmi.c
+++ b/drivers/video/hdmi.c
@@ -650,6 +650,93 @@ ssize_t hdmi_vendor_infoframe_pack(struct hdmi_vendor_infoframe *frame,
 	return 0;
 }
 
+/**
+ * hdmi_drm_infoframe_init() - initialize an HDMI Dynaminc Range and
+ * mastering infoframe
+ * @frame: HDMI DRM infoframe
+ *
+ * Returns 0 on success or a negative error code on failure.
+ */
+int hdmi_drm_infoframe_init(struct hdmi_drm_infoframe *frame)
+{
+	memset(frame, 0, sizeof(*frame));
+
+	frame->type = HDMI_INFOFRAME_TYPE_DRM;
+	frame->version = 1;
+
+	return 0;
+}
+EXPORT_SYMBOL(hdmi_drm_infoframe_init);
+
+/**
+ * hdmi_drm_infoframe_pack() - write HDMI DRM infoframe to binary buffer
+ * @frame: HDMI DRM infoframe
+ * @buffer: destination buffer
+ * @size: size of buffer
+ *
+ * Packs the information contained in the @frame structure into a binary
+ * representation that can be written into the corresponding controller
+ * registers. Also computes the checksum as required by section 5.3.5 of
+ * the HDMI 1.4 specification.
+ *
+ * Returns the number of bytes packed into the binary buffer or a negative
+ * error code on failure.
+ */
+ssize_t hdmi_drm_infoframe_pack(struct hdmi_drm_infoframe *frame, void *buffer,
+				size_t size)
+{
+	u8 *ptr = buffer;
+	size_t length;
+	int i;
+
+	length = HDMI_INFOFRAME_HEADER_SIZE + frame->length;
+
+	if (size < length)
+		return -ENOSPC;
+
+	memset(buffer, 0, size);
+
+	ptr[0] = frame->type;
+	ptr[1] = frame->version;
+	ptr[2] = frame->length;
+	ptr[3] = 0; /* checksum */
+
+	/* start infoframe payload */
+	ptr += HDMI_INFOFRAME_HEADER_SIZE;
+
+	*ptr++ = frame->eotf;
+	*ptr++ = frame->metadata_type;
+
+	for (i = 0; i < 3; i++) {
+		*ptr++ = frame->display_primaries[i].x & 0xff;
+		*ptr++ = frame->display_primaries[i].x >> 8;
+		*ptr++ = frame->display_primaries[i].y & 0xff;
+		*ptr++ = frame->display_primaries[i].y >> 8;
+	}
+
+	*ptr++ = frame->white_point.x & 0xff;
+	*ptr++ = frame->white_point.x >> 8;
+
+	*ptr++ = frame->white_point.y & 0xff;
+	*ptr++ = frame->white_point.y >> 8;
+
+	*ptr++ = frame->max_mastering_display_luminance & 0xff;
+	*ptr++ = frame->max_mastering_display_luminance >> 8;
+
+	*ptr++ = frame->min_mastering_display_luminance & 0xff;
+	*ptr++ = frame->min_mastering_display_luminance >> 8;
+
+	*ptr++ = frame->max_cll & 0xff;
+	*ptr++ = frame->max_cll >> 8;
+
+	*ptr++ = frame->max_fall & 0xff;
+	*ptr++ = frame->max_fall >> 8;
+
+	hdmi_infoframe_set_checksum(buffer, length);
+
+	return length;
+}
+
 /*
  * hdmi_vendor_any_infoframe_check() - check a vendor infoframe
  */
@@ -806,6 +893,9 @@ ssize_t hdmi_vendor_infoframe_pack(struct hdmi_vendor_infoframe *frame,
 	case HDMI_INFOFRAME_TYPE_AVI:
 		length = hdmi_avi_infoframe_pack(&frame->avi, buffer, size);
 		break;
+	case HDMI_INFOFRAME_TYPE_DRM:
+		length = hdmi_drm_infoframe_pack(&frame->drm, buffer, size);
+		break;
 	case HDMI_INFOFRAME_TYPE_SPD:
 		length = hdmi_spd_infoframe_pack(&frame->spd, buffer, size);
 		break;
@@ -838,6 +928,8 @@ static const char *hdmi_infoframe_type_get_name(enum hdmi_infoframe_type type)
 		return "Source Product Description (SPD)";
 	case HDMI_INFOFRAME_TYPE_AUDIO:
 		return "Audio";
+	case HDMI_INFOFRAME_TYPE_DRM:
+		return "Dynamic Range and Mastering";
 	}
 	return "Reserved";
 }
@@ -1284,6 +1376,40 @@ static void hdmi_audio_infoframe_log(const char *level,
 			frame->downmix_inhibit ? "Yes" : "No");
 }
 
+/**
+ * hdmi_drm_infoframe_log() - log info of HDMI DRM infoframe
+ * @level: logging level
+ * @dev: device
+ * @frame: HDMI DRM infoframe
+ */
+static void hdmi_drm_infoframe_log(const char *level,
+                                  struct device *dev,
+                                  struct hdmi_drm_infoframe *frame)
+{
+	int i;
+
+	hdmi_infoframe_log_header(level, dev,
+			(struct hdmi_any_infoframe *)frame);
+	hdmi_log("length: %d\n", frame->length);
+	hdmi_log("metadata type: %d\n", frame->metadata_type);
+	hdmi_log("eotf: %d\n", frame->eotf);
+	for (i = 0; i < 3; i++) {
+		hdmi_log("x[%d]: %d\n", i, frame->display_primaries[i].x);
+		hdmi_log("y[%d]: %d\n", i, frame->display_primaries[i].y);
+	}
+
+	hdmi_log("white point x: %d\n", frame->white_point.x);
+	hdmi_log("white point y: %d\n", frame->white_point.y);
+
+	hdmi_log("max_mastering_display_luminance: %d\n",
+			frame->max_mastering_display_luminance);
+	hdmi_log("min_mastering_display_luminance: %d\n",
+			frame->min_mastering_display_luminance);
+
+	hdmi_log("max_cll: %d\n", frame->max_cll);
+	hdmi_log("max_fall: %d\n", frame->max_fall);
+}
+
 static const char *
 hdmi_3d_structure_get_name(enum hdmi_3d_structure s3d_struct)
 {
@@ -1372,6 +1498,9 @@ void hdmi_infoframe_log(const char *level,
 	case HDMI_INFOFRAME_TYPE_VENDOR:
 		hdmi_vendor_any_infoframe_log(level, dev, &frame->vendor);
 		break;
+	case HDMI_INFOFRAME_TYPE_DRM:
+		hdmi_drm_infoframe_log(level, dev, &frame->drm);
+		break;
 	}
 }
 EXPORT_SYMBOL(hdmi_infoframe_log);
diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h
index e3c4048..0511607 100644
--- a/include/drm/drm_edid.h
+++ b/include/drm/drm_edid.h
@@ -365,6 +365,10 @@ int drm_av_sync_delay(struct drm_connector *connector,
 				   bool rgb_quant_range_selectable,
 				   bool is_hdmi2_sink);
 
+int
+drm_hdmi_infoframe_set_hdr_metadata(struct hdmi_drm_infoframe *frame,
+				    void *hdr_source_metadata);
+
 /**
  * drm_eld_mnl - Get ELD monitor name length in bytes.
  * @eld: pointer to an eld memory structure with mnl set
diff --git a/include/linux/hdmi.h b/include/linux/hdmi.h
index bed3e08..ce00e1e 100644
--- a/include/linux/hdmi.h
+++ b/include/linux/hdmi.h
@@ -32,6 +32,7 @@ enum hdmi_infoframe_type {
 	HDMI_INFOFRAME_TYPE_AVI = 0x82,
 	HDMI_INFOFRAME_TYPE_SPD = 0x83,
 	HDMI_INFOFRAME_TYPE_AUDIO = 0x84,
+	HDMI_INFOFRAME_TYPE_DRM = 0x87,
 };
 
 #define HDMI_IEEE_OUI 0x000c03
@@ -170,12 +171,32 @@ struct hdmi_avi_infoframe {
 	unsigned short right_bar;
 };
 
+struct hdmi_drm_infoframe {
+	enum hdmi_infoframe_type type;
+	unsigned char version;
+	unsigned char length;
+	enum hdmi_eotf eotf;
+	enum hdmi_metadata_type metadata_type;
+	struct {
+		uint16_t x, y;
+	} display_primaries[3];
+	struct {
+		uint16_t x, y;
+	} white_point;
+	uint16_t max_mastering_display_luminance;
+	uint16_t min_mastering_display_luminance;
+	uint16_t max_fall;
+	uint16_t max_cll;
+	uint16_t min_cll;
+};
+
 int hdmi_avi_infoframe_init(struct hdmi_avi_infoframe *frame);
 ssize_t hdmi_avi_infoframe_pack(struct hdmi_avi_infoframe *frame, void *buffer,
 				size_t size);
 ssize_t hdmi_avi_infoframe_pack_only(const struct hdmi_avi_infoframe *frame,
 				     void *buffer, size_t size);
 int hdmi_avi_infoframe_check(struct hdmi_avi_infoframe *frame);
+int hdmi_drm_infoframe_init(struct hdmi_drm_infoframe *frame);
 
 enum hdmi_spd_sdi {
 	HDMI_SPD_SDI_UNKNOWN,
@@ -350,6 +371,7 @@ ssize_t hdmi_vendor_infoframe_pack_only(const struct hdmi_vendor_infoframe *fram
 	struct hdmi_spd_infoframe spd;
 	union hdmi_vendor_any_infoframe vendor;
 	struct hdmi_audio_infoframe audio;
+	struct hdmi_drm_infoframe drm;
 };
 
 ssize_t hdmi_infoframe_pack(union hdmi_infoframe *frame, void *buffer,
