ba21bb2481
On ICP-ADP the pins used by the second PPS can be alternatively muxed to some other function. In that case the second power sequencer is unusable. Unfortunately (on my ADL Thinkpad T14 gen3 at least) the BIOS still likes to enable the VDD on the second PPS (due to the VBT declaring the second bogus eDP panel) even when not correctly muxed, so we need to deal with it somehow. For now let's just initialize the PPS as normal, and then use the normal eDP probe failure VDD off path to turn it off (and release the wakeref the PPS init grabbed). The alternative of just declaring that the platform has a single PPS doesn't really work since it would cause the second eDP probe to also try to use the first PPS and thus clobber the state for the first (real) eDP panel. Cc: Animesh Manna <animesh.manna@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221125173156.31689-7-ville.syrjala@linux.intel.com Reviewed-by: Animesh Manna <animesh.manna@intel.com>
56 lines
1.9 KiB
C
56 lines
1.9 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2020 Intel Corporation
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*/
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#ifndef __INTEL_PPS_H__
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#define __INTEL_PPS_H__
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#include <linux/types.h>
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#include "intel_wakeref.h"
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enum pipe;
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struct drm_i915_private;
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struct intel_connector;
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struct intel_crtc_state;
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struct intel_dp;
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struct intel_encoder;
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intel_wakeref_t intel_pps_lock(struct intel_dp *intel_dp);
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intel_wakeref_t intel_pps_unlock(struct intel_dp *intel_dp, intel_wakeref_t wakeref);
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#define with_intel_pps_lock(dp, wf) \
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for ((wf) = intel_pps_lock(dp); (wf); (wf) = intel_pps_unlock((dp), (wf)))
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void intel_pps_backlight_on(struct intel_dp *intel_dp);
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void intel_pps_backlight_off(struct intel_dp *intel_dp);
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void intel_pps_backlight_power(struct intel_connector *connector, bool enable);
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bool intel_pps_vdd_on_unlocked(struct intel_dp *intel_dp);
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void intel_pps_vdd_off_unlocked(struct intel_dp *intel_dp, bool sync);
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void intel_pps_on_unlocked(struct intel_dp *intel_dp);
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void intel_pps_off_unlocked(struct intel_dp *intel_dp);
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void intel_pps_check_power_unlocked(struct intel_dp *intel_dp);
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void intel_pps_vdd_on(struct intel_dp *intel_dp);
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void intel_pps_on(struct intel_dp *intel_dp);
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void intel_pps_off(struct intel_dp *intel_dp);
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void intel_pps_vdd_off_sync(struct intel_dp *intel_dp);
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bool intel_pps_have_panel_power_or_vdd(struct intel_dp *intel_dp);
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void intel_pps_wait_power_cycle(struct intel_dp *intel_dp);
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bool intel_pps_init(struct intel_dp *intel_dp);
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void intel_pps_init_late(struct intel_dp *intel_dp);
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void intel_pps_encoder_reset(struct intel_dp *intel_dp);
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void intel_pps_reset_all(struct drm_i915_private *i915);
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void vlv_pps_init(struct intel_encoder *encoder,
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const struct intel_crtc_state *crtc_state);
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void intel_pps_unlock_regs_wa(struct drm_i915_private *i915);
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void intel_pps_setup(struct drm_i915_private *i915);
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void assert_pps_unlocked(struct drm_i915_private *i915, enum pipe pipe);
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#endif /* __INTEL_PPS_H__ */
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