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drm/amd/display: store lttpr mode with dpcd

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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>
This commit is contained in:
abdoulaye berthe 2019-12-11 15:18:08 -05:00 committed by Alex Deucher
parent e8027e0884
commit a166f86e8a
1 changed files with 11 additions and 2 deletions
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13
drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
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@ -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 +