diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn314/dcn314_hwseq.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn314/dcn314_hwseq.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_hwseq.c index 90ec76487264..755c715ad8dc 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_hwseq.c @@ -338,3 +338,39 @@ void dcn314_enable_power_gating_plane(struct dce_hwseq *hws, bool enable) if (org_ip_request_cntl == 0) REG_SET(DC_IP_REQUEST_CNTL, 0, IP_REQUEST_EN, 0); } + +unsigned int dcn314_calculate_dccg_k1_k2_values(struct pipe_ctx *pipe_ctx, unsigned int *k1_div, unsigned int *k2_div) +{ + struct dc_stream_state *stream = pipe_ctx->stream; + unsigned int odm_combine_factor = 0; + + odm_combine_factor = get_odm_config(pipe_ctx, NULL); + + if (is_dp_128b_132b_signal(pipe_ctx)) { + *k2_div = PIXEL_RATE_DIV_BY_1; + } else if (dc_is_hdmi_tmds_signal(pipe_ctx->stream->signal) || dc_is_dvi_signal(pipe_ctx->stream->signal)) { + *k1_div = PIXEL_RATE_DIV_BY_1; + if (stream->timing.pixel_encoding == PIXEL_ENCODING_YCBCR420) + *k2_div = PIXEL_RATE_DIV_BY_2; + else + *k2_div = PIXEL_RATE_DIV_BY_4; + } else if (dc_is_dp_signal(pipe_ctx->stream->signal)) { + if (stream->timing.pixel_encoding == PIXEL_ENCODING_YCBCR420) { + *k1_div = PIXEL_RATE_DIV_BY_1; + *k2_div = PIXEL_RATE_DIV_BY_2; + } else if (stream->timing.pixel_encoding == PIXEL_ENCODING_YCBCR422) { + *k1_div = PIXEL_RATE_DIV_BY_2; + *k2_div = PIXEL_RATE_DIV_BY_2; + } else { + if (odm_combine_factor == 1) + *k2_div = PIXEL_RATE_DIV_BY_4; + else if (odm_combine_factor == 2) + *k2_div = PIXEL_RATE_DIV_BY_2; + } + } + + if ((*k1_div == PIXEL_RATE_DIV_NA) && (*k2_div == PIXEL_RATE_DIV_NA)) + ASSERT(false); + + return odm_combine_factor; +} |