Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
drm/{i915, xe}/display: Add display runtime pm parent interface
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
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include/drm/intel/display_parent_interface.h
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include/drm/intel/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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* 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