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authorVille Syrjälä <ville.syrjala@linux.intel.com>2016-09-28 16:51:41 +0300
committerDaniel Vetter <daniel.vetter@ffwll.ch>2016-10-04 09:23:12 +0300
commit23ebf8b9eab9151c3cccca8dbf44a8d47357158d (patch)
tree51068df99c7abb20bfe17ea2099fd0d6bb6938c1 /drivers/gpu/drm/drm_edid.c
parent011acce2859ad50b7a923cad4a726220b5f24455 (diff)
downloadlinux-23ebf8b9eab9151c3cccca8dbf44a8d47357158d.tar.xz
drm/edid: Move dvi_dual/max_tmds_clock parsing out from drm_edid_to_eld()
drm_edid_to_eld() is just mean to cook up the ELD for the audio driver, so having it parse non-audio related stuff seems just wrong, and potentially could lead to that information not being even filled out if the function doesn't even get called. Let's move that stuff to the place where we parse the color formats and whatnot from the CEA ext block. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Acked-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1475070703-6435-9-git-send-email-ville.syrjala@linux.intel.com
Diffstat (limited to 'drivers/gpu/drm/drm_edid.c')
-rw-r--r--drivers/gpu/drm/drm_edid.c64
1 files changed, 35 insertions, 29 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 48e529df344e..ec77bd3e1f08 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -3253,17 +3253,12 @@ static void fixup_detailed_cea_mode_clock(struct drm_display_mode *mode)
}
static void
-parse_hdmi_vsdb(struct drm_connector *connector, const u8 *db)
+drm_parse_hdmi_vsdb_audio(struct drm_connector *connector, const u8 *db)
{
- struct drm_display_info *info = &connector->display_info;
u8 len = cea_db_payload_len(db);
- if (len >= 6) {
+ if (len >= 6)
connector->eld[5] |= (db[6] >> 7) << 1; /* Supports_AI */
- info->dvi_dual = db[6] & 1;
- }
- if (len >= 7)
- info->max_tmds_clock = db[7] * 5000;
if (len >= 8) {
connector->latency_present[0] = db[8] >> 7;
connector->latency_present[1] = (db[8] >> 6) & 1;
@@ -3277,19 +3272,15 @@ parse_hdmi_vsdb(struct drm_connector *connector, const u8 *db)
if (len >= 12)
connector->audio_latency[1] = db[12];
- DRM_DEBUG_KMS("HDMI: DVI dual %d, "
- "max TMDS clock %d, "
- "latency present %d %d, "
- "video latency %d %d, "
- "audio latency %d %d\n",
- info->dvi_dual,
- info->max_tmds_clock,
- (int) connector->latency_present[0],
- (int) connector->latency_present[1],
- connector->video_latency[0],
- connector->video_latency[1],
- connector->audio_latency[0],
- connector->audio_latency[1]);
+ DRM_DEBUG_KMS("HDMI: latency present %d %d, "
+ "video latency %d %d, "
+ "audio latency %d %d\n",
+ connector->latency_present[0],
+ connector->latency_present[1],
+ connector->video_latency[0],
+ connector->video_latency[1],
+ connector->audio_latency[0],
+ connector->audio_latency[1]);
}
static void
@@ -3350,7 +3341,6 @@ EXPORT_SYMBOL(drm_edid_get_monitor_name);
*/
void drm_edid_to_eld(struct drm_connector *connector, struct edid *edid)
{
- struct drm_display_info *info = &connector->display_info;
uint8_t *eld = connector->eld;
u8 *cea;
u8 *db;
@@ -3367,9 +3357,6 @@ void drm_edid_to_eld(struct drm_connector *connector, struct edid *edid)
connector->video_latency[1] = 0;
connector->audio_latency[1] = 0;
- info->max_tmds_clock = 0;
- info->dvi_dual = false;
-
cea = drm_find_cea_extension(edid);
if (!cea) {
DRM_DEBUG_KMS("ELD: no CEA Extension found\n");
@@ -3419,7 +3406,7 @@ void drm_edid_to_eld(struct drm_connector *connector, struct edid *edid)
case VENDOR_BLOCK:
/* HDMI Vendor-Specific Data Block */
if (cea_db_is_hdmi_vsdb(db))
- parse_hdmi_vsdb(connector, db);
+ drm_parse_hdmi_vsdb_audio(connector, db);
break;
default:
break;
@@ -3800,6 +3787,25 @@ static void drm_parse_hdmi_deep_color_info(struct drm_connector *connector,
}
}
+static void
+drm_parse_hdmi_vsdb_video(struct drm_connector *connector, const u8 *db)
+{
+ struct drm_display_info *info = &connector->display_info;
+ u8 len = cea_db_payload_len(db);
+
+ if (len >= 6)
+ info->dvi_dual = db[6] & 1;
+ if (len >= 7)
+ info->max_tmds_clock = db[7] * 5000;
+
+ DRM_DEBUG_KMS("HDMI: DVI dual %d, "
+ "max TMDS clock %d kHz\n",
+ info->dvi_dual,
+ info->max_tmds_clock);
+
+ drm_parse_hdmi_deep_color_info(connector, db);
+}
+
static void drm_parse_cea_ext(struct drm_connector *connector,
struct edid *edid)
{
@@ -3826,10 +3832,8 @@ static void drm_parse_cea_ext(struct drm_connector *connector,
for_each_cea_db(edid_ext, i, start, end) {
const u8 *db = &edid_ext[i];
- if (!cea_db_is_hdmi_vsdb(db))
- continue;
-
- drm_parse_hdmi_deep_color_info(connector, db);
+ if (cea_db_is_hdmi_vsdb(db))
+ drm_parse_hdmi_vsdb_video(connector, db);
}
}
@@ -3845,6 +3849,8 @@ static void drm_add_display_info(struct drm_connector *connector,
info->bpc = 0;
info->color_formats = 0;
info->cea_rev = 0;
+ info->max_tmds_clock = 0;
+ info->dvi_dual = false;
if (edid->revision < 3)
return;