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drm/amd/display: Don't allow dual-link DVI on all ASICs.

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Our APUs (Carrizo, Stoney, Raven) don't support it.

v2: Don't use is_apu as other ASICs might also not support it

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Harry Wentland 2017-12-19 16:17:22 -05:00 committed by Alex Deucher
parent 35c4c88ce8
commit 6724eebac4
6 changed files with 10 additions and 2 deletions
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5
drivers/gpu/drm/amd/display/dc/core/dc_stream.c
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@ -45,8 +45,9 @@ static void update_stream_signal(struct dc_stream_state *stream)
stream->signal = dc_sink->sink_signal;
if (dc_is_dvi_signal(stream->signal)) {
if (stream->timing.pix_clk_khz > TMDS_MAX_PIXEL_CLOCK_IN_KHZ_UPMOST &&
stream->sink->sink_signal != SIGNAL_TYPE_DVI_SINGLE_LINK)
if (stream->ctx->dc->caps.dual_link_dvi &&
stream->timing.pix_clk_khz > TMDS_MAX_PIXEL_CLOCK_IN_KHZ_UPMOST &&
stream->sink->sink_signal != SIGNAL_TYPE_DVI_SINGLE_LINK)
stream->signal = SIGNAL_TYPE_DVI_DUAL_LINK;
else
stream->signal = SIGNAL_TYPE_DVI_SINGLE_LINK;

1
drivers/gpu/drm/amd/display/dc/dc.h
View File

@ -62,6 +62,7 @@ struct dc_caps {
bool dcc_const_color;
bool dynamic_audio;
bool is_apu;
bool dual_link_dvi;
};
struct dc_dcc_surface_param {

1
drivers/gpu/drm/amd/display/dc/dce100/dce100_resource.c
View File

@ -852,6 +852,7 @@ static bool construct(
dc->caps.max_downscale_ratio = 200;
dc->caps.i2c_speed_in_khz = 40;
dc->caps.max_cursor_size = 128;
dc->caps.dual_link_dvi = true;
for (i = 0; i < pool->base.pipe_count; i++) {
pool->base.timing_generators[i] =

2
drivers/gpu/drm/amd/display/dc/dce112/dce112_resource.c
View File

@ -1103,6 +1103,8 @@ static bool construct(
dc->caps.max_downscale_ratio = 200;
dc->caps.i2c_speed_in_khz = 100;
dc->caps.max_cursor_size = 128;
dc->caps.dual_link_dvi = true;
/*************************************************
* Create resources *

2
drivers/gpu/drm/amd/display/dc/dce120/dce120_resource.c
View File

@ -835,6 +835,8 @@ static bool construct(
dc->caps.max_downscale_ratio = 200;
dc->caps.i2c_speed_in_khz = 100;
dc->caps.max_cursor_size = 128;
dc->caps.dual_link_dvi = true;
dc->debug = debug_defaults;
/*************************************************

1
drivers/gpu/drm/amd/display/dc/dce80/dce80_resource.c
View File

@ -793,6 +793,7 @@ static bool dce80_construct(
dc->caps.max_downscale_ratio = 200;
dc->caps.i2c_speed_in_khz = 40;
dc->caps.max_cursor_size = 128;
dc->caps.dual_link_dvi = true;
/*************************************************
* Create resources *