diff options
Diffstat (limited to 'drivers/gpu/drm/drm_edid.c')
| -rw-r--r-- | drivers/gpu/drm/drm_edid.c | 47 |
1 files changed, 45 insertions, 2 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index ad41764a4ebe..116451101426 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -4434,6 +4434,7 @@ static void drm_edid_to_eld(struct drm_connector *connector, struct edid *edid) if (cea_revision(cea) >= 3) { int i, start, end; + int sad_count; if (cea_db_offsets(cea, &start, &end)) { start = 0; @@ -4445,8 +4446,6 @@ static void drm_edid_to_eld(struct drm_connector *connector, struct edid *edid) dbl = cea_db_payload_len(db); switch (cea_db_tag(db)) { - int sad_count; - case AUDIO_BLOCK: /* Audio Data Block, contains SADs */ sad_count = min(dbl / 3, 15 - total_sad_count); @@ -4938,6 +4937,47 @@ static void drm_parse_cea_ext(struct drm_connector *connector, } } +static +void get_monitor_range(struct detailed_timing *timing, + void *info_monitor_range) +{ + struct drm_monitor_range_info *monitor_range = info_monitor_range; + const struct detailed_non_pixel *data = &timing->data.other_data; + const struct detailed_data_monitor_range *range = &data->data.range; + + if (!is_display_descriptor((const u8 *)timing, EDID_DETAIL_MONITOR_RANGE)) + return; + + /* + * Check for flag range limits only. If flag == 1 then + * no additional timing information provided. + * Default GTF, GTF Secondary curve and CVT are not + * supported + */ + if (range->flags != DRM_EDID_RANGE_LIMITS_ONLY_FLAG) + return; + + monitor_range->min_vfreq = range->min_vfreq; + monitor_range->max_vfreq = range->max_vfreq; +} + +static +void drm_get_monitor_range(struct drm_connector *connector, + const struct edid *edid) +{ + struct drm_display_info *info = &connector->display_info; + + if (!version_greater(edid, 1, 1)) + return; + + drm_for_each_detailed_block((u8 *)edid, get_monitor_range, + &info->monitor_range); + + DRM_DEBUG_KMS("Supported Monitor Refresh rate range is %d Hz - %d Hz\n", + info->monitor_range.min_vfreq, + info->monitor_range.max_vfreq); +} + /* A connector has no EDID information, so we've got no EDID to compute quirks from. Reset * all of the values which would have been set from EDID */ @@ -4960,6 +5000,7 @@ drm_reset_display_info(struct drm_connector *connector) memset(&info->hdmi, 0, sizeof(info->hdmi)); info->non_desktop = 0; + memset(&info->monitor_range, 0, sizeof(info->monitor_range)); } u32 drm_add_display_info(struct drm_connector *connector, const struct edid *edid) @@ -4975,6 +5016,8 @@ u32 drm_add_display_info(struct drm_connector *connector, const struct edid *edi info->non_desktop = !!(quirks & EDID_QUIRK_NON_DESKTOP); + drm_get_monitor_range(connector, edid); + DRM_DEBUG_KMS("non_desktop set to %d\n", info->non_desktop); if (edid->revision < 3) |