3944709df8
There is some scenarios that we are aware that sink probe can fail, so lets add the infrastructure to let hotplug() hook to request another probe after some time. v2: Handle shared HPD pins (Imre) v3: Rebased v4: Renamed INTEL_HOTPLUG_NOCHANGE to INTEL_HOTPLUG_UNCHANGED to keep it consistent(Rodrigo) v5: Making the working queue used explicit through all the callers to hotplug_work (Ville) Tested-by: Timo Aaltonen <tjaalton@ubuntu.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: José Roberto de Souza <jose.souza@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190712005343.24571-1-jose.souza@intel.com
32 lines
1.0 KiB
C
32 lines
1.0 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_HOTPLUG_H__
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#define __INTEL_HOTPLUG_H__
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#include <linux/types.h>
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#include <drm/i915_drm.h>
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struct drm_i915_private;
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struct intel_connector;
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struct intel_encoder;
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void intel_hpd_poll_init(struct drm_i915_private *dev_priv);
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enum intel_hotplug_state intel_encoder_hotplug(struct intel_encoder *encoder,
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struct intel_connector *connector,
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bool irq_received);
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void intel_hpd_irq_handler(struct drm_i915_private *dev_priv,
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u32 pin_mask, u32 long_mask);
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void intel_hpd_init(struct drm_i915_private *dev_priv);
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void intel_hpd_init_work(struct drm_i915_private *dev_priv);
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void intel_hpd_cancel_work(struct drm_i915_private *dev_priv);
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enum hpd_pin intel_hpd_pin_default(struct drm_i915_private *dev_priv,
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enum port port);
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bool intel_hpd_disable(struct drm_i915_private *dev_priv, enum hpd_pin pin);
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void intel_hpd_enable(struct drm_i915_private *dev_priv, enum hpd_pin pin);
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#endif /* __INTEL_HOTPLUG_H__ */
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