diff options
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ddi.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 15 |
2 files changed, 16 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index 3f247f091d4c..df06e5bb4764 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -1457,7 +1457,8 @@ static void ddi_dotclock_get(struct intel_crtc_state *pipe_config) else dotclock = pipe_config->port_clock; - if (pipe_config->output_format == INTEL_OUTPUT_FORMAT_YCBCR420) + if (pipe_config->output_format == INTEL_OUTPUT_FORMAT_YCBCR420 && + !intel_crtc_has_dp_encoder(pipe_config)) dotclock *= 2; if (pipe_config->pixel_multiplier) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 06b1dc274196..d62f0898360e 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1850,6 +1850,19 @@ intel_dp_adjust_compliance_config(struct intel_dp *intel_dp, } } +static int intel_dp_output_bpp(const struct intel_crtc_state *crtc_state, int bpp) +{ + /* + * bpp value was assumed to RGB format. And YCbCr 4:2:0 output + * format of the number of bytes per pixel will be half the number + * of bytes of RGB pixel. + */ + if (crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR420) + bpp /= 2; + + return bpp; +} + /* Optimize link config in order: max bpp, min clock, min lanes */ static int intel_dp_compute_link_config_wide(struct intel_dp *intel_dp, @@ -2223,7 +2236,7 @@ intel_dp_compute_config(struct intel_encoder *encoder, if (pipe_config->dsc_params.compression_enable) output_bpp = pipe_config->dsc_params.compressed_bpp; else - output_bpp = pipe_config->pipe_bpp; + output_bpp = intel_dp_output_bpp(pipe_config, pipe_config->pipe_bpp); intel_link_compute_m_n(output_bpp, pipe_config->lane_count, |