[PATCH 09/34] drm/amd/display: Read DPCD link caps up to and including DP_ADAPTER_CAP

[Harry Wentland]

From: Nikola Cornij <nikola.cornij at amd.com>

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 at amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng at amd.com>
Acked-by: Harry Wentland <harry.wentland at amd.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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 cb376cf3228f..163c88779722 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;
-- 
2.17.0