diff options
| author |   Alvin Lee <alvin.lee2@amd.com> | 2022-08-10 19:39:24 -0400 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2022-08-25 13:34:41 -0400 |
| commit | 594b237b9a07e28d524b35a59dbff5bdc8de6b78 (patch) | |
| tree | 79505b8dec11163878fc7b6f936b44eecb8564ba /drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | |
| parent | drm/amd/display: Free phantom plane and stream properly (diff) | |
| download | linux-dev-594b237b9a07e28d524b35a59dbff5bdc8de6b78.tar.xz linux-dev-594b237b9a07e28d524b35a59dbff5bdc8de6b78.zip | |
drm/amd/display: Add interface to track PHY state
[Why]
Sometimes pixel clock needs to remain active after transmitter disable.
[How]
Use update_phy_state to track PHY state after stream
enable/disable and program pixel clock as needed.
Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Acked-by: Brian Chang <Brian.Chang@amd.com>
Signed-off-by: Taimur Hassan <Syed.Hassan@amd.com>
Signed-off-by: Alvin Lee <alvin.lee2@amd.com>
Tested-by: Daniel 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_dp.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 12 |
1 files changed, 10 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 48dad093ae8b..f92bbc86772e 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 @@ -4519,7 +4519,11 @@ void dc_link_dp_handle_link_loss(struct dc_link *link) pipe_ctx = &link->dc->current_state->res_ctx.pipe_ctx[i]; if (pipe_ctx && pipe_ctx->stream && !pipe_ctx->stream->dpms_off && pipe_ctx->stream->link == link && !pipe_ctx->prev_odm_pipe) { - core_link_disable_stream(pipe_ctx); + if (link->dc->hwss.update_phy_state) + link->dc->hwss.update_phy_state(link->dc->current_state, + pipe_ctx, TX_OFF_SYMCLK_OFF); + else + core_link_disable_stream(pipe_ctx); } } @@ -4527,7 +4531,11 @@ void dc_link_dp_handle_link_loss(struct dc_link *link) pipe_ctx = &link->dc->current_state->res_ctx.pipe_ctx[i]; if (pipe_ctx && pipe_ctx->stream && !pipe_ctx->stream->dpms_off && pipe_ctx->stream->link == link && !pipe_ctx->prev_odm_pipe) { - core_link_enable_stream(link->dc->current_state, pipe_ctx); + if (link->dc->hwss.update_phy_state) + link->dc->hwss.update_phy_state(link->dc->current_state, + pipe_ctx, TX_ON_SYMCLK_ON); + else + core_link_enable_stream(link->dc->current_state, pipe_ctx); } } } |