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path: root/drivers/gpu/drm/amd/display/dc/link/link_detection.c
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Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/link/link_detection.c')
-rw-r--r--drivers/gpu/drm/amd/display/dc/link/link_detection.c25
1 files changed, 19 insertions, 6 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/link/link_detection.c b/drivers/gpu/drm/amd/display/dc/link/link_detection.c
index 59851924bfcd..794dd6a95918 100644
--- a/drivers/gpu/drm/amd/display/dc/link/link_detection.c
+++ b/drivers/gpu/drm/amd/display/dc/link/link_detection.c
@@ -781,10 +781,8 @@ static void restore_phy_clocks_for_destructive_link_verification(const struct dc
}
static void verify_link_capability_destructive(struct dc_link *link,
- struct dc_sink *sink,
enum dc_detect_reason reason)
{
- (void)sink;
bool should_prepare_phy_clocks =
should_prepare_phy_clocks_for_link_verification(link->dc, reason);
@@ -857,11 +855,11 @@ static bool should_verify_link_capability_destructively(struct dc_link *link,
return destrictive;
}
-static void verify_link_capability(struct dc_link *link, struct dc_sink *sink,
+static void verify_link_capability(struct dc_link *link,
enum dc_detect_reason reason)
{
if (should_verify_link_capability_destructively(link, reason))
- verify_link_capability_destructive(link, sink, reason);
+ verify_link_capability_destructive(link, reason);
else
verify_link_capability_non_destructive(link);
}
@@ -1236,6 +1234,20 @@ static bool detect_link_and_local_sink(struct dc_link *link,
if (dc_is_hdmi_signal(link->connector_signal))
read_scdc_caps(link->ddc, link->local_sink);
+ /* When FreeSync is toggled through OSD,
+ * we see same EDID no matter what. Check MCCS caps
+ * to see if we should update FreeSync caps now.
+ */
+ dm_helpers_read_mccs_caps(
+ link->ctx,
+ link,
+ sink);
+
+ if (prev_sink != NULL) {
+ if (memcmp(&sink->mccs_caps, &prev_sink->mccs_caps, sizeof(struct mccs_caps)))
+ same_edid = false;
+ }
+
if (link->connector_signal == SIGNAL_TYPE_DISPLAY_PORT &&
sink_caps.transaction_type ==
DDC_TRANSACTION_TYPE_I2C_OVER_AUX) {
@@ -1455,8 +1467,9 @@ bool link_detect(struct dc_link *link, enum dc_detect_reason reason)
is_local_sink_detect_success = detect_link_and_local_sink(link, reason);
- if (is_local_sink_detect_success && link->local_sink)
- verify_link_capability(link, link->local_sink, reason);
+ if (is_local_sink_detect_success && link->local_sink) {
+ verify_link_capability(link, reason);
+ }
DC_LOG_DC("%s: link_index=%d is_local_sink_detect_success=%d pre_link_type=%d link_type=%d\n", __func__,
link->link_index, is_local_sink_detect_success, pre_link_type, link->type);