From: Ville Syrjälä <[email protected]> When doing HDMI+non-HDMI cloing the other sink can't get the inframes/etc. so stuff like limited range output is not a good idea.
Similarly when doing HDMI+HDMI cloning on g4x (only platform where we allow it) only one of the ports can receive infoframes and so again using any fancy stuff is a bad idea. We also don't track the inforames/audio state per-port so we'd end up with some kind of random mismash state when multipled encoders try to compute the same stuff. And the hardware will in fact automagically disable audio/infoframe transmission if you try to enable it for multiple HDMI ports at the same time. Thus disable all HDMI specific features when cloning. Signed-off-by: Ville Syrjälä <[email protected]> --- drivers/gpu/drm/i915/display/intel_hdmi.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c index d3692c9a1d80..31927f8238d1 100644 --- a/drivers/gpu/drm/i915/display/intel_hdmi.c +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c @@ -2057,13 +2057,6 @@ static bool hdmi_bpc_possible(const struct intel_crtc_state *crtc_state, int bpc if (!intel_hdmi_source_bpc_possible(dev_priv, bpc)) return false; - /* - * HDMI deep color affects the clocks, so it's only possible - * when not cloning with other encoder types. - */ - if (bpc > 8 && crtc_state->output_types != BIT(INTEL_OUTPUT_HDMI)) - return false; - /* Display Wa_1405510057:icl,ehl */ if (intel_hdmi_is_ycbcr420(crtc_state) && bpc == 10 && DISPLAY_VER(dev_priv) == 11 && @@ -2238,6 +2231,12 @@ static int intel_hdmi_compute_output_format(struct intel_encoder *encoder, return ret; } +static bool intel_hdmi_is_cloned(const struct intel_crtc_state *crtc_state) +{ + return crtc_state->uapi.encoder_mask && + !is_power_of_2(crtc_state->uapi.encoder_mask); +} + int intel_hdmi_compute_config(struct intel_encoder *encoder, struct intel_crtc_state *pipe_config, struct drm_connector_state *conn_state) @@ -2253,8 +2252,9 @@ int intel_hdmi_compute_config(struct intel_encoder *encoder, return -EINVAL; pipe_config->output_format = INTEL_OUTPUT_FORMAT_RGB; - pipe_config->has_hdmi_sink = intel_has_hdmi_sink(intel_hdmi, - conn_state); + pipe_config->has_hdmi_sink = + intel_has_hdmi_sink(intel_hdmi, conn_state) && + !intel_hdmi_is_cloned(pipe_config); if (pipe_config->has_hdmi_sink) pipe_config->has_infoframe = true; -- 2.37.4
