diff options
| author | Jimmy Kizito <Jimmy.Kizito@amd.com> | 2021-01-06 23:21:11 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-04-09 23:48:42 +0300 |
| commit | 79ed7354d70f6e9579c25afc682b5f5ad44791bf (patch) | |
| tree | dea6951864c4399070800054c19019d87bb1516c /drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c | |
| parent | f42ef862fb1fbbd291fb381f38d3910da644a44d (diff) | |
| download | linux-79ed7354d70f6e9579c25afc682b5f5ad44791bf.tar.xz | |
drm/amd/display: Update display endpoint control path.
[Why]
Some display endpoints may be dynamically mapped to the link encoders
which drive them.
[How]
Update the code paths for display enabling/disabling to accommodate
the dynamic association between links and link encoders.
Signed-off-by: Jimmy Kizito <Jimmy.Kizito@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Anson Jacob <Anson.Jacob@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c index 22fe19ee842d..48ad1a8d4a74 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c @@ -14,6 +14,7 @@ #include "dpcd_defs.h" #include "dsc.h" #include "resource.h" +#include "link_enc_cfg.h" #include "clk_mgr.h" static uint8_t convert_to_count(uint8_t lttpr_repeater_count) @@ -95,7 +96,7 @@ void dp_enable_link_phy( enum clock_source_id clock_source, const struct dc_link_settings *link_settings) { - struct link_encoder *link_enc = link->link_enc; + struct link_encoder *link_enc; struct dc *dc = link->ctx->dc; struct dmcu *dmcu = dc->res_pool->dmcu; @@ -105,6 +106,13 @@ void dp_enable_link_phy( link->dc->res_pool->dp_clock_source; unsigned int i; + /* Link should always be assigned encoder when en-/disabling. */ + if (link->is_dig_mapping_flexible && dc->res_pool->funcs->link_encs_assign) + link_enc = link_enc_cfg_get_link_enc_used_by_link(link->dc->current_state, link); + else + link_enc = link->link_enc; + ASSERT(link_enc); + if (link->connector_signal == SIGNAL_TYPE_EDP) { link->dc->hwss.edp_power_control(link, true); link->dc->hwss.edp_wait_for_hpd_ready(link, true); @@ -227,6 +235,14 @@ void dp_disable_link_phy(struct dc_link *link, enum signal_type signal) { struct dc *dc = link->ctx->dc; struct dmcu *dmcu = dc->res_pool->dmcu; + struct link_encoder *link_enc; + + /* Link should always be assigned encoder when en-/disabling. */ + if (link->is_dig_mapping_flexible && dc->res_pool->funcs->link_encs_assign) + link_enc = link_enc_cfg_get_link_enc_used_by_link(link->dc->current_state, link); + else + link_enc = link->link_enc; + ASSERT(link_enc); if (!link->wa_flags.dp_keep_receiver_powered) dp_receiver_power_ctrl(link, false); @@ -234,13 +250,13 @@ void dp_disable_link_phy(struct dc_link *link, enum signal_type signal) if (signal == SIGNAL_TYPE_EDP) { if (link->dc->hwss.edp_backlight_control) link->dc->hwss.edp_backlight_control(link, false); - link->link_enc->funcs->disable_output(link->link_enc, signal); + link_enc->funcs->disable_output(link_enc, signal); link->dc->hwss.edp_power_control(link, false); } else { if (dmcu != NULL && dmcu->funcs->lock_phy) dmcu->funcs->lock_phy(dmcu); - link->link_enc->funcs->disable_output(link->link_enc, signal); + link_enc->funcs->disable_output(link_enc, signal); if (dmcu != NULL && dmcu->funcs->unlock_phy) dmcu->funcs->unlock_phy(dmcu); |