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/* SPDX-License-Identifier: MIT */
/*
* Copyright (C) 2024 Intel Corporation
*/
#ifndef __INTEL_WAKELOCK_H__
#define __INTEL_WAKELOCK_H__
#include <linux/types.h>
#include <linux/workqueue.h>
#include <linux/refcount.h>
#include "i915_reg_defs.h"
struct intel_display;
struct intel_dmc_wl {
spinlock_t lock; /* protects enabled, taken, dc_state and refcount */
bool enabled;
bool taken;
refcount_t refcount;
/*
* We are keeping a copy of the enabled DC state because
* intel_display.power.domains is protected by a mutex and we do
* not want call mutex_lock() in atomic context, where some of
* the tracked MMIO operations happen.
*/
u32 dc_state;
struct delayed_work work;
};
void intel_dmc_wl_init(struct intel_display *display);
void intel_dmc_wl_enable(struct intel_display *display, u32 dc_state);
void intel_dmc_wl_disable(struct intel_display *display);
void intel_dmc_wl_flush_release_work(struct intel_display *display);
void intel_dmc_wl_get(struct intel_display *display, i915_reg_t reg);
void intel_dmc_wl_put(struct intel_display *display, i915_reg_t reg);
void intel_dmc_wl_get_noreg(struct intel_display *display);
void intel_dmc_wl_put_noreg(struct intel_display *display);
#endif /* __INTEL_WAKELOCK_H__ */
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