diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 36 |
1 files changed, 30 insertions, 6 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c index c6ce2b7123b7..cd20cfc04996 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c @@ -44,9 +44,6 @@ #include "dm_helpers.h" #include "ddc_service_types.h" -/* MST Dock */ -static const uint8_t SYNAPTICS_DEVICE_ID[] = "SYNA"; - /* dm_helpers_parse_edid_caps * * Parse edid caps @@ -702,6 +699,9 @@ static void apply_synaptics_fifo_reset_wa(struct drm_dp_aux *aux) DC_LOG_DC("Done apply_synaptics_fifo_reset_wa\n"); } +/* MST Dock */ +static const uint8_t SYNAPTICS_DEVICE_ID[] = "SYNA"; + static uint8_t write_dsc_enable_synaptics_non_virtual_dpcd_mst( struct drm_dp_aux *aux, const struct dc_stream_state *stream, @@ -885,10 +885,34 @@ enum dc_edid_status dm_helpers_read_local_edid( DRM_ERROR("EDID err: %d, on connector: %s", edid_status, aconnector->base.name); + if (link->aux_mode) { + union test_request test_request = {0}; + union test_response test_response = {0}; - /* DP Compliance Test 4.2.2.3 */ - if (link->aux_mode) - drm_dp_send_real_edid_checksum(&aconnector->dm_dp_aux.aux, sink->dc_edid.raw_edid[sink->dc_edid.length-1]); + dm_helpers_dp_read_dpcd(ctx, + link, + DP_TEST_REQUEST, + &test_request.raw, + sizeof(union test_request)); + + if (!test_request.bits.EDID_READ) + return edid_status; + + test_response.bits.EDID_CHECKSUM_WRITE = 1; + + dm_helpers_dp_write_dpcd(ctx, + link, + DP_TEST_EDID_CHECKSUM, + &sink->dc_edid.raw_edid[sink->dc_edid.length-1], + 1); + + dm_helpers_dp_write_dpcd(ctx, + link, + DP_TEST_RESPONSE, + &test_response.raw, + sizeof(test_response)); + + } return edid_status; } |