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drm/amd/display: Support DAC in dce110_hwseq

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The dce110_hwseq is used by all DCE hardware,
so add the DAC support here.

When enabling/disabling a stream for a RGB signal,
this will call the VBIOS to enable/disable the DAC.
Additionally, when applying the controller context,
call SelectCRTC_Source from VBIOS in order to
direct the CRTC output to the DAC.

Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Timur Kristóf 2025-09-26 20:01:53 +02:00 • committed by Alex Deucher
parent 0fbe321a93
commit 3be26d81b1
1 changed files with 73 additions and 2 deletions
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75
drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c
View file

@ -659,6 +659,20 @@ void dce110_update_info_frame(struct pipe_ctx *pipe_ctx)
}
}
static void
dce110_dac_encoder_control(struct pipe_ctx *pipe_ctx, bool enable)
{
struct dc_link *link = pipe_ctx->stream->link;
struct dc_bios *bios = link->ctx->dc_bios;
struct bp_encoder_control encoder_control = {0};
encoder_control.action = enable ? ENCODER_CONTROL_ENABLE : ENCODER_CONTROL_DISABLE;
encoder_control.engine_id = link->link_enc->analog_engine;
encoder_control.pixel_clock = pipe_ctx->stream->timing.pix_clk_100hz / 10;
bios->funcs->encoder_control(bios, &encoder_control);
}
void dce110_enable_stream(struct pipe_ctx *pipe_ctx)
{
enum dc_lane_count lane_count =
@ -689,6 +703,9 @@ void dce110_enable_stream(struct pipe_ctx *pipe_ctx)
early_control = lane_count;
tg->funcs->set_early_control(tg, early_control);
if (dc_is_rgb_signal(pipe_ctx->stream->signal))
dce110_dac_encoder_control(pipe_ctx, true);
}
static enum bp_result link_transmitter_control(
@ -1176,7 +1193,8 @@ void dce110_disable_stream(struct pipe_ctx *pipe_ctx)
pipe_ctx->stream_res.stream_enc->funcs->stop_dp_info_packets(
pipe_ctx->stream_res.stream_enc);
dc->hwss.disable_audio_stream(pipe_ctx);
if (!dc_is_rgb_signal(pipe_ctx->stream->signal))
dc->hwss.disable_audio_stream(pipe_ctx);
link_hwss->reset_stream_encoder(pipe_ctx);
@ -1196,6 +1214,9 @@ void dce110_disable_stream(struct pipe_ctx *pipe_ctx)
dccg->funcs->disable_symclk_se(dccg, stream_enc->stream_enc_inst,
link_enc->transmitter - TRANSMITTER_UNIPHY_A);
}
if (dc_is_rgb_signal(pipe_ctx->stream->signal))
dce110_dac_encoder_control(pipe_ctx, false);
}
void dce110_unblank_stream(struct pipe_ctx *pipe_ctx,
@ -1581,6 +1602,51 @@ static enum dc_status dce110_enable_stream_timing(
return DC_OK;
}
static void
dce110_select_crtc_source(struct pipe_ctx *pipe_ctx)
{
struct dc_link *link = pipe_ctx->stream->link;
struct dc_bios *bios = link->ctx->dc_bios;
struct bp_crtc_source_select crtc_source_select = {0};
enum engine_id engine_id = link->link_enc->preferred_engine;
uint8_t bit_depth;
if (dc_is_rgb_signal(pipe_ctx->stream->signal))
engine_id = link->link_enc->analog_engine;
switch (pipe_ctx->stream->timing.display_color_depth) {
case COLOR_DEPTH_UNDEFINED:
bit_depth = 0;
break;
case COLOR_DEPTH_666:
bit_depth = 6;
break;
default:
case COLOR_DEPTH_888:
bit_depth = 8;
break;
case COLOR_DEPTH_101010:
bit_depth = 10;
break;
case COLOR_DEPTH_121212:
bit_depth = 12;
break;
case COLOR_DEPTH_141414:
bit_depth = 14;
break;
case COLOR_DEPTH_161616:
bit_depth = 16;
break;
}
crtc_source_select.controller_id = CONTROLLER_ID_D0 + pipe_ctx->stream_res.tg->inst;
crtc_source_select.bit_depth = bit_depth;
crtc_source_select.engine_id = engine_id;
crtc_source_select.sink_signal = pipe_ctx->stream->signal;
bios->funcs->select_crtc_source(bios, &crtc_source_select);
}
enum dc_status dce110_apply_single_controller_ctx_to_hw(
struct pipe_ctx *pipe_ctx,
struct dc_state *context,
@ -1600,6 +1666,10 @@ enum dc_status dce110_apply_single_controller_ctx_to_hw(
hws->funcs.disable_stream_gating(dc, pipe_ctx);
}
if (pipe_ctx->stream->signal == SIGNAL_TYPE_RGB) {
dce110_select_crtc_source(pipe_ctx);
}
if (pipe_ctx->stream_res.audio != NULL) {
struct audio_output audio_output = {0};
@ -1679,7 +1749,8 @@ enum dc_status dce110_apply_single_controller_ctx_to_hw(
pipe_ctx->stream_res.tg->funcs->set_static_screen_control(
pipe_ctx->stream_res.tg, event_triggers, 2);
if (!dc_is_virtual_signal(pipe_ctx->stream->signal))
if (!dc_is_virtual_signal(pipe_ctx->stream->signal) &&
!dc_is_rgb_signal(pipe_ctx->stream->signal))
pipe_ctx->stream_res.stream_enc->funcs->dig_connect_to_otg(
pipe_ctx->stream_res.stream_enc,
pipe_ctx->stream_res.tg->inst);