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1914d6861b
We have differing implementations for display runtime pm in i915 and xe drivers. Add struct of function pointers into display_parent_interface which will contain used implementation of runtime pm. v2: - add _interface suffix to rpm function pointer struct - add struct ref_tracker forward declaration - use kernel-doc comments Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Jouni Högander <jouni.hogander@intel.com> Link: https://patch.msgid.link/20251030202836.1815680-3-jouni.hogander@intel.com
46 lines
1.6 KiB
C
46 lines
1.6 KiB
C
/* SPDX-License-Identifier: MIT */
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/* Copyright © 2025 Intel Corporation x*/
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#ifndef __DISPLAY_PARENT_INTERFACE_H__
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#define __DISPLAY_PARENT_INTERFACE_H__
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#include <linux/types.h>
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struct drm_device;
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struct ref_tracker;
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struct intel_display_rpm_interface {
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struct ref_tracker *(*get)(const struct drm_device *drm);
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struct ref_tracker *(*get_raw)(const struct drm_device *drm);
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struct ref_tracker *(*get_if_in_use)(const struct drm_device *drm);
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struct ref_tracker *(*get_noresume)(const struct drm_device *drm);
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void (*put)(const struct drm_device *drm, struct ref_tracker *wakeref);
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void (*put_raw)(const struct drm_device *drm, struct ref_tracker *wakeref);
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void (*put_unchecked)(const struct drm_device *drm);
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bool (*suspended)(const struct drm_device *drm);
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void (*assert_held)(const struct drm_device *drm);
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void (*assert_block)(const struct drm_device *drm);
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void (*assert_unblock)(const struct drm_device *drm);
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};
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/**
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* struct intel_display_parent_interface - services parent driver provides to display
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*
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* The parent, or core, driver provides a pointer to this structure to display
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* driver when calling intel_display_device_probe(). The display driver uses it
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* to access services provided by the parent driver. The structure may contain
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* sub-struct pointers to group function pointers by functionality.
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*
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* All function and sub-struct pointers must be initialized and callable unless
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* explicitly marked as "optional" below. The display driver will only NULL
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* check the optional pointers.
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*/
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struct intel_display_parent_interface {
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/** @rpm: Runtime PM functions */
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const struct intel_display_rpm_interface *rpm;
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};
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#endif
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