diff options
| author |   abdoulaye berthe <abdoulaye.berthe@amd.com> | 2019-12-11 15:18:08 -0500 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2020-01-16 14:11:20 -0500 |
| commit | a166f86e8a3c91adb303fc511acbfa9d9f2899a1 (patch) | |
| tree | efd44c2af9287cc715a08f9fc348aee330cb5e3b | |
| parent | drm/amd/display: Add double buffering to dcn20 OCSC (diff) | |
| download | linux-dev-a166f86e8a3c91adb303fc511acbfa9d9f2899a1.tar.xz linux-dev-a166f86e8a3c91adb303fc511acbfa9d9f2899a1.zip | |
drm/amd/display: store lttpr mode with dpcd
Make sure that lttpr_caps has the mode set to repeater.
Signed-off-by: abdoulaye berthe <abdoulaye.berthe@amd.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 13 |
1 files changed, 11 insertions, 2 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 5d0e7abb2b98..f703b3998644 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 @@ -1217,24 +1217,33 @@ static void configure_lttpr_mode(struct dc_link *link) uint8_t repeater_cnt; uint32_t aux_interval_address; uint8_t repeater_id; + enum dc_status result = DC_ERROR_UNEXPECTED; uint8_t repeater_mode = DP_PHY_REPEATER_MODE_TRANSPARENT; DC_LOG_HW_LINK_TRAINING("%s\n Set LTTPR to Transparent Mode\n", __func__); - core_link_write_dpcd(link, + result = core_link_write_dpcd(link, DP_PHY_REPEATER_MODE, (uint8_t *)&repeater_mode, sizeof(repeater_mode)); + if (result == DC_OK) { + link->dpcd_caps.lttpr_caps.mode = repeater_mode; + } + if (!link->is_lttpr_mode_transparent) { DC_LOG_HW_LINK_TRAINING("%s\n Set LTTPR to Non Transparent Mode\n", __func__); repeater_mode = DP_PHY_REPEATER_MODE_NON_TRANSPARENT; - core_link_write_dpcd(link, + result = core_link_write_dpcd(link, DP_PHY_REPEATER_MODE, (uint8_t *)&repeater_mode, sizeof(repeater_mode)); + if (result == DC_OK) { + link->dpcd_caps.lttpr_caps.mode = repeater_mode; + } + repeater_cnt = convert_to_count(link->dpcd_caps.lttpr_caps.phy_repeater_cnt); for (repeater_id = repeater_cnt; repeater_id > 0; repeater_id--) { aux_interval_address = DP_TRAINING_AUX_RD_INTERVAL_PHY_REPEATER1 + |