b4d7757758
Currently we just use all the hdmi_deep_color_possible() stuff to compute whether deep color is possible, and leave the 8bpc case to do its own thing. That doesn't mesh super well with 4:2:0 handling because we might end up going for 8bpc RGB without considering that it's essentially illegal and we could instead go for a legal 4:2:0 config. So let's run through all the clock checks even for 8bpc first. If we've fully exhausted all options only then do we re-run the computation for 8bpc while ignoring the downstream TMDS clock limits. This will guarantee that if there's a config that respects all limits we will find it, and if there is not we still allow the user to override the mode manually. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211015133921.4609-7-ville.syrjala@linux.intel.com Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
60 lines
2.2 KiB
C
60 lines
2.2 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2019 Intel Corporation
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*/
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#ifndef __INTEL_HDMI_H__
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#define __INTEL_HDMI_H__
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#include <linux/hdmi.h>
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#include <linux/types.h>
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#include "i915_reg.h"
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struct drm_connector;
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struct drm_encoder;
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struct drm_i915_private;
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struct intel_connector;
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struct intel_digital_port;
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struct intel_encoder;
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struct intel_crtc_state;
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struct intel_hdmi;
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struct drm_connector_state;
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union hdmi_infoframe;
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enum port;
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void intel_hdmi_init_connector(struct intel_digital_port *dig_port,
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struct intel_connector *intel_connector);
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int intel_hdmi_compute_config(struct intel_encoder *encoder,
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struct intel_crtc_state *pipe_config,
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struct drm_connector_state *conn_state);
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void intel_hdmi_encoder_shutdown(struct intel_encoder *encoder);
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bool intel_hdmi_handle_sink_scrambling(struct intel_encoder *encoder,
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struct drm_connector *connector,
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bool high_tmds_clock_ratio,
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bool scrambling);
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void intel_dp_dual_mode_set_tmds_output(struct intel_hdmi *hdmi, bool enable);
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void intel_infoframe_init(struct intel_digital_port *dig_port);
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u32 intel_hdmi_infoframes_enabled(struct intel_encoder *encoder,
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const struct intel_crtc_state *crtc_state);
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u32 intel_hdmi_infoframe_enable(unsigned int type);
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void intel_hdmi_read_gcp_infoframe(struct intel_encoder *encoder,
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struct intel_crtc_state *crtc_state);
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void intel_read_infoframe(struct intel_encoder *encoder,
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const struct intel_crtc_state *crtc_state,
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enum hdmi_infoframe_type type,
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union hdmi_infoframe *frame);
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bool intel_hdmi_limited_color_range(const struct intel_crtc_state *crtc_state,
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const struct drm_connector_state *conn_state);
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bool intel_hdmi_bpc_possible(const struct intel_crtc_state *crtc_state,
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int bpc, bool has_hdmi_sink, bool ycbcr420_output);
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int intel_hdmi_dsc_get_bpp(int src_fractional_bpp, int slice_width,
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int num_slices, int output_format, bool hdmi_all_bpp,
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int hdmi_max_chunk_bytes);
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int intel_hdmi_dsc_get_num_slices(const struct intel_crtc_state *crtc_state,
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int src_max_slices, int src_max_slice_width,
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int hdmi_max_slices, int hdmi_throughput);
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int intel_hdmi_dsc_get_slice_height(int vactive);
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#endif /* __INTEL_HDMI_H__ */
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