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drm/amd/display: Expose dither setting functionality to Linux

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We will need this to disable dither for CRC capture.

Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Leo (Sunpeng) Li 2018-02-06 09:50:49 -05:00 • committed by Alex Deucher
parent 236d0e4f6f
commit 44af70a742
2 changed files with 34 additions and 0 deletions
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31
drivers/gpu/drm/amd/display/dc/core/dc.c
View file

@ -300,6 +300,37 @@ bool dc_stream_get_crc(struct dc *dc, struct dc_stream_state *stream,
return false;
}
void dc_stream_set_dither_option(struct dc_stream_state *stream,
enum dc_dither_option option)
{
struct bit_depth_reduction_params params;
struct dc_link *link = stream->status.link;
struct pipe_ctx *pipes = NULL;
int i;
for (i = 0; i < MAX_PIPES; i++) {
if (link->dc->current_state->res_ctx.pipe_ctx[i].stream ==
stream) {
pipes = &link->dc->current_state->res_ctx.pipe_ctx[i];
break;
}
}
memset(&params, 0, sizeof(params));
if (!pipes)
return;
if (option > DITHER_OPTION_MAX)
return;
stream->dither_option = option;
resource_build_bit_depth_reduction_params(stream,
&params);
stream->bit_depth_params = params;
pipes->stream_res.opp->funcs->
opp_program_bit_depth_reduction(pipes->stream_res.opp, &params);
}
void dc_stream_set_static_screen_events(struct dc *dc,
struct dc_stream_state **streams,
int num_streams,

3
drivers/gpu/drm/amd/display/dc/dc_stream.h
View file

@ -287,6 +287,9 @@ void dc_stream_set_static_screen_events(struct dc *dc,
int num_streams,
const struct dc_static_screen_events *events);
void dc_stream_set_dither_option(struct dc_stream_state *stream,
enum dc_dither_option option);
bool dc_stream_adjust_vmin_vmax(struct dc *dc,
struct dc_stream_state **stream,