From: Zheng Yang <zhengyang@rock-chips.com>
Date: Wed, 21 Jun 2017 07:08:03 +0000 (+0800)
Subject: Revert "FROMLIST: drm: edid: HDMI 2.0 HF-VSDB block parsing"
X-Git-Tag: release-20171130_firefly~4^2~295
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=afb31b9c18d0d7b5e9fffc0ce94a0647e3386450;p=firefly-linux-kernel-4.4.55.git

Revert "FROMLIST: drm: edid: HDMI 2.0 HF-VSDB block parsing"

This reverts commit 6e9aa006c4ae10f95bba0121c26b06363efb3b96.

UPSTREAM code has support parsing HDMI.20 HF-VSDB.

Change-Id: Ia25ee6a92e9a2fee4b3356446c1198e938c5e74d
Signed-off-by: Zheng Yang <zhengyang@rock-chips.com>
---

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index cfeff2847468..615607da389b 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -3467,21 +3467,6 @@ static bool cea_db_is_hdmi_vsdb(const u8 *db)
 	return hdmi_id == HDMI_IEEE_OUI;
 }
 
-static bool cea_db_is_hdmi_hf_vsdb(const u8 *db)
-{
-	int hdmi_id;
-
-	if (cea_db_tag(db) != VENDOR_BLOCK)
-		return false;
-
-	if (cea_db_payload_len(db) < 7)
-		return false;
-
-	hdmi_id = db[1] | (db[2] << 8) | (db[3] << 16);
-
-	return hdmi_id == HDMI_IEEE_OUI_HF;
-}
-
 static bool cea_db_is_hdmi_vdb420(const u8 *db)
 {
 	if (cea_db_tag(db) != VIDEO_CAPABILITY_BLOCK)
@@ -3648,36 +3633,6 @@ drm_parse_hdmi_vsdb_audio(struct drm_connector *connector, const u8 *db)
 		      connector->audio_latency[1]);
 }
 
-static void
-parse_hdmi_hf_vsdb(struct drm_connector *connector, const u8 *db)
-{
-	u8 len = cea_db_payload_len(db);
-
-	if (len < 7)
-		return;
-
-	if (db[4] != 1)
-		return; /* invalid version */
-
-	connector->max_tmds_char = db[5] * 5;
-	connector->scdc_present = db[6] & (1 << 7);
-	connector->rr_capable = db[6] & (1 << 6);
-	connector->flags_3d = db[6] & 0x7;
-	connector->lte_340mcsc_scramble = db[6] & (1 << 3);
-
-	DRM_DEBUG_KMS("HDMI v2: max TMDS clock %d, "
-			"scdc %s, "
-			"rr %s, "
-			"3D flags 0x%x, "
-			"scramble %s\n",
-			connector->max_tmds_char,
-			connector->scdc_present ? "available" : "not available",
-			connector->rr_capable ? "capable" : "not capable",
-			connector->flags_3d,
-			connector->lte_340mcsc_scramble ?
-				"supported" : "not supported");
-}
-
 static void
 monitor_name(struct detailed_timing *t, void *data)
 {
@@ -3769,9 +3724,6 @@ void drm_edid_to_eld(struct drm_connector *connector, struct edid *edid)
 				/* HDMI Vendor-Specific Data Block */
 				if (cea_db_is_hdmi_vsdb(db))
 					drm_parse_hdmi_vsdb_audio(connector, db);
-				/* HDMI Forum Vendor-Specific Data Block */
-				else if (cea_db_is_hdmi_hf_vsdb(db))
-					parse_hdmi_hf_vsdb(connector, db);
 				break;
 			default:
 				break;
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index d7e55bec7f17..f9f3ad1a69be 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -786,11 +786,6 @@ struct drm_encoder {
  * @audio_latency: audio latency info from ELD, if found
  * @null_edid_counter: track sinks that give us all zeros for the EDID
  * @bad_edid_counter: track sinks that give us an EDID with invalid checksum
- * @max_tmds_char: indicates the maximum TMDS Character Rate supported
- * @scdc_present: when set the sink supports SCDC functionality
- * @rr_capable: when set the sink is capable of initiating an SCDC read request
- * @lte_340mcsc_scramble: when set the sink supports less than 340Mcsc scramble
- * @flags_3d: 3D view(s) supported by the sink, see drm_edid.h (DRM_EDID_3D_*)
  * @edid_corrupt: indicates whether the last read EDID was corrupt
  * @debugfs_entry: debugfs directory for this connector
  * @state: current atomic state for this connector
@@ -864,13 +859,6 @@ struct drm_connector {
 	int null_edid_counter; /* needed to workaround some HW bugs where we get all 0s */
 	unsigned bad_edid_counter;
 
-	/* EDID bits HDMI 2.0 */
-	int max_tmds_char;	/* in Mcsc */
-	bool scdc_present;
-	bool rr_capable;
-	bool lte_340mcsc_scramble;
-	int flags_3d;
-
 	/* Flag for raw EDID header corruption - used in Displayport
 	 * compliance testing - * Displayport Link CTS Core 1.2 rev1.1 4.2.2.6
 	 */
diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h
index 820ad9e33884..f012f9e7afe2 100644
--- a/include/drm/drm_edid.h
+++ b/include/drm/drm_edid.h
@@ -266,11 +266,6 @@ struct detailed_timing {
 
 #define DRM_ELD_CEA_SAD(mnl, sad)	(20 + (mnl) + 3 * (sad))
 
-/* HDMI 2.0 */
-#define DRM_EDID_3D_INDEPENDENT_VIEW	(1 << 2)
-#define DRM_EDID_3D_DUAL_VIEW		(1 << 1)
-#define DRM_EDID_3D_OSD_DISPARITY	(1 << 0)
-
 struct edid {
 	u8 header[8];
 	/* Vendor & product info */
diff --git a/include/linux/hdmi.h b/include/linux/hdmi.h
index 2e6849f494f0..d271ff23984f 100644
--- a/include/linux/hdmi.h
+++ b/include/linux/hdmi.h
@@ -36,7 +36,6 @@ enum hdmi_infoframe_type {
 
 #define HDMI_IEEE_OUI 0x000c03
 #define HDMI_FORUM_IEEE_OUI 0xc45dd8
-#define HDMI_IEEE_OUI_HF	0xc45dd8
 #define HDMI_INFOFRAME_HEADER_SIZE  4
 #define HDMI_AVI_INFOFRAME_SIZE    13
 #define HDMI_SPD_INFOFRAME_SIZE    25