diff options
| author | Nikola Cornij <nikola.cornij@amd.com> | 2018-05-07 22:35:15 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-05-29 21:31:37 +0300 |
| commit | 794550c6eaf791bfd2e8d70e11aa56fdd6361725 (patch) | |
| tree | c7f65a1a616fbb7e7800d5e01452ce9cac473adc /drivers/gpu/drm/amd | |
| parent | 4ea7fc09539bd2399c1fa7acea14529406120d9e (diff) | |
| download | linux-794550c6eaf791bfd2e8d70e11aa56fdd6361725.tar.xz | |
drm/amd/display: Read DPCD link caps up to and including DP_ADAPTER_CAP
DP 1.4 compliance requires 16 bytes to be read when reading link caps,
i.e. it requires DP_ADAPTER_CAP to be included. Included it for all DP
versions because reading more than required won't fail.
Signed-off-by: Nikola Cornij <nikola.cornij@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c index 7d609c71394b..3fcb67cbc6cc 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c @@ -2278,7 +2278,7 @@ static void dp_wa_power_up_0010FA(struct dc_link *link, uint8_t *dpcd_data, static bool retrieve_link_cap(struct dc_link *link) { - uint8_t dpcd_data[DP_TRAINING_AUX_RD_INTERVAL - DP_DPCD_REV + 1]; + uint8_t dpcd_data[DP_ADAPTER_CAP - DP_DPCD_REV + 1]; union down_stream_port_count down_strm_port_count; union edp_configuration_cap edp_config_cap; |