Quoting Kuogee Hsieh (2021-07-06 10:20:18)
Response with correct edid checksum saved at connector after corrupted edid checksum read. This fixes Link Layer CTS cases 4.2.2.3, 4.2.2.6.
Signed-off-by: Kuogee Hsieh khsieh@codeaurora.org
drivers/gpu/drm/msm/dp/dp_panel.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/msm/dp/dp_panel.c b/drivers/gpu/drm/msm/dp/dp_panel.c index 88196f7..0fdb551 100644 --- a/drivers/gpu/drm/msm/dp/dp_panel.c +++ b/drivers/gpu/drm/msm/dp/dp_panel.c @@ -271,7 +271,7 @@ static u8 dp_panel_get_edid_checksum(struct edid *edid) { struct edid *last_block; u8 *raw_edid;
bool is_edid_corrupt;
bool is_edid_corrupt = false; if (!edid) { DRM_ERROR("invalid edid input\n");@@ -303,7 +303,12 @@ void dp_panel_handle_sink_request(struct dp_panel *dp_panel) panel = container_of(dp_panel, struct dp_panel_private, dp_panel);
if (panel->link->sink_request & DP_TEST_LINK_EDID_READ) {
u8 checksum = dp_panel_get_edid_checksum(dp_panel->edid);
u8 checksum;if (dp_panel->edid)checksum = dp_panel_get_edid_checksum(dp_panel->edid);elsechecksum = dp_panel->connector->real_edid_checksum; dp_link_send_edid_checksum(panel->link, checksum);
It looks like this can be drm_dp_send_real_edid_checksum()? Then we don't have to look at the connector internals sometimes and can drop dp_panel_get_edid_checksum() entirely?
dp_link_send_test_response(panel->link);