drm/i915/hdmi: HDMI source product description infoframe support

Set an SPD infoframe if the sink supports it.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 2f47dcf..7b330e7 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -184,6 +184,22 @@
 #define DIP_VERSION_AVI 0x2
 #define DIP_LEN_AVI     13
 
+#define DIP_TYPE_SPD	0x3
+#define DIP_VERSION_SPD	0x1
+#define DIP_LEN_SPD	25
+#define DIP_SPD_UNKNOWN	0
+#define DIP_SPD_DSTB	0x1
+#define DIP_SPD_DVDP	0x2
+#define DIP_SPD_DVHS	0x3
+#define DIP_SPD_HDDVR	0x4
+#define DIP_SPD_DVC	0x5
+#define DIP_SPD_DSC	0x6
+#define DIP_SPD_VCD	0x7
+#define DIP_SPD_GAME	0x8
+#define DIP_SPD_PC	0x9
+#define DIP_SPD_BD	0xa
+#define DIP_SPD_SCD	0xb
+
 struct dip_infoframe {
 	uint8_t type;		/* HB0 */
 	uint8_t ver;		/* HB1 */
@@ -208,6 +224,11 @@
 			uint16_t left_bar_end;
 			uint16_t right_bar_start;
 		} avi;
+		struct {
+			uint8_t vn[8];
+			uint8_t pd[16];
+			uint8_t sdi;
+		} spd;
 		uint8_t payload[27];
 	} __attribute__ ((packed)) body;
 } __attribute__((packed));