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VBT version 264 adds new fields associated to Xe3p_LPD's new ways of
configuring SoC for TC ports and PHYs. Update the code to match the
updates in VBT.
The new field dedicated_external is used to represent TC ports that are
connected to PHYs outside of the Type-C subsystem, meaning that they
behave like dedicated ports and don't require the extra Type-C
programming. In an upcoming change, we will update the driver to take
this field into consideration when detecting the type of port.
The new field dyn_port_over_tc is used to inform that the TC port can be
dynamically allocated for a legacy connector in the Type-C subsystem,
which is a new feature in Xe3p_LPD. In upcoming changes, we will use
that field in order to handle the IOM resource management programming
required for that.
Note that, when dedicated_external is set, the fields dp_usb_type_c and
tbt are tagged as "don't care" in the spec, so they should be ignored in
that case, so also add a sanitization function to take care of forcing
them to zero when dedicated_external is true.
v2:
- Use sanitization function to force dp_usb_type_c and tbt fields to
be zero instead of adding a
intel_bios_encoder_is_dedicated_external() check in each of their
respective accessor functions. (Jani)
- Print info about dedicated external ports in print_ddi_port().
(Jani)
v3:
- Also zero out field dyn_port_over_tc when dedicated_external is set.
(Imre)
- Use intel_bios_encoder_is_dedicated_external() directly instead of
storing return value into variable in print_ddi_port(). (Imre)
- Also print info for dyn_port_over_tc in print_ddi_port(). (Imre)
Bspec: 20124, 68954, 74304
Cc: Imre Deak <imre.deak@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Shekhar Chauhan <shekhar.chauhan@intel.com>
Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patch.msgid.link/20251202012306.9315-2-matthew.s.atwood@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
109 lines
5.2 KiB
C
109 lines
5.2 KiB
C
/*
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* Copyright © 2016-2019 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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/*
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* Please use intel_vbt_defs.h for VBT private data, to hide and abstract away
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* the VBT from the rest of the driver. Add the parsed, clean data to struct
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* intel_vbt_data within struct intel_display.
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*/
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#ifndef _INTEL_BIOS_H_
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#define _INTEL_BIOS_H_
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#include <linux/types.h>
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struct drm_edid;
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struct intel_bios_encoder_data;
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struct intel_crtc_state;
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struct intel_display;
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struct intel_encoder;
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struct intel_panel;
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enum aux_ch;
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enum port;
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enum intel_backlight_type {
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INTEL_BACKLIGHT_PMIC,
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INTEL_BACKLIGHT_LPSS,
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INTEL_BACKLIGHT_DISPLAY_DDI,
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INTEL_BACKLIGHT_DSI_DCS,
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INTEL_BACKLIGHT_PANEL_DRIVER_INTERFACE,
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INTEL_BACKLIGHT_VESA_EDP_AUX_INTERFACE,
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};
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void intel_bios_init(struct intel_display *display);
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void intel_bios_init_panel_early(struct intel_display *display,
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struct intel_panel *panel,
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const struct intel_bios_encoder_data *devdata);
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void intel_bios_init_panel_late(struct intel_display *display,
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struct intel_panel *panel,
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const struct intel_bios_encoder_data *devdata,
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const struct drm_edid *drm_edid);
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void intel_bios_fini_panel(struct intel_panel *panel);
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void intel_bios_driver_remove(struct intel_display *display);
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bool intel_bios_is_valid_vbt(struct intel_display *display,
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const void *buf, size_t size);
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bool intel_bios_is_tv_present(struct intel_display *display);
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bool intel_bios_is_lvds_present(struct intel_display *display, u8 *i2c_pin);
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bool intel_bios_is_port_present(struct intel_display *display, enum port port);
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bool intel_bios_is_dsi_present(struct intel_display *display, enum port *port);
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bool intel_bios_get_dsc_params(struct intel_encoder *encoder,
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struct intel_crtc_state *crtc_state,
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int dsc_max_bpc);
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const struct intel_bios_encoder_data *
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intel_bios_encoder_data_lookup(struct intel_display *display, enum port port);
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bool intel_bios_encoder_supports_dvi(const struct intel_bios_encoder_data *devdata);
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bool intel_bios_encoder_supports_hdmi(const struct intel_bios_encoder_data *devdata);
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bool intel_bios_encoder_supports_dp(const struct intel_bios_encoder_data *devdata);
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bool intel_bios_encoder_supports_edp(const struct intel_bios_encoder_data *devdata);
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bool intel_bios_encoder_supports_typec_usb(const struct intel_bios_encoder_data *devdata);
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bool intel_bios_encoder_supports_tbt(const struct intel_bios_encoder_data *devdata);
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bool intel_bios_encoder_is_dedicated_external(const struct intel_bios_encoder_data *devdata);
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bool intel_bios_encoder_supports_dyn_port_over_tc(const struct intel_bios_encoder_data *devdata);
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bool intel_bios_encoder_supports_dsi(const struct intel_bios_encoder_data *devdata);
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bool intel_bios_encoder_supports_dp_dual_mode(const struct intel_bios_encoder_data *devdata);
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bool intel_bios_encoder_is_lspcon(const struct intel_bios_encoder_data *devdata);
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bool intel_bios_encoder_lane_reversal(const struct intel_bios_encoder_data *devdata);
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bool intel_bios_encoder_hpd_invert(const struct intel_bios_encoder_data *devdata);
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enum port intel_bios_encoder_port(const struct intel_bios_encoder_data *devdata);
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bool intel_bios_encoder_reject_edp_rate(const struct intel_bios_encoder_data *devdata,
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int rate);
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enum aux_ch intel_bios_dp_aux_ch(const struct intel_bios_encoder_data *devdata);
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int intel_bios_dp_boost_level(const struct intel_bios_encoder_data *devdata);
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int intel_bios_dp_max_lane_count(const struct intel_bios_encoder_data *devdata);
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int intel_bios_dp_max_link_rate(const struct intel_bios_encoder_data *devdata);
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bool intel_bios_dp_has_shared_aux_ch(const struct intel_bios_encoder_data *devdata);
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int intel_bios_hdmi_boost_level(const struct intel_bios_encoder_data *devdata);
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int intel_bios_hdmi_ddc_pin(const struct intel_bios_encoder_data *devdata);
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int intel_bios_hdmi_level_shift(const struct intel_bios_encoder_data *devdata);
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int intel_bios_hdmi_max_tmds_clock(const struct intel_bios_encoder_data *devdata);
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void intel_bios_for_each_encoder(struct intel_display *display,
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void (*func)(struct intel_display *display,
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const struct intel_bios_encoder_data *devdata));
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void intel_bios_debugfs_register(struct intel_display *display);
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#endif /* _INTEL_BIOS_H_ */
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