hc
2023-12-06 08f87f769b595151be1afeff53e144f543faa614
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/*
 *
 * (C) COPYRIGHT 2015 ARM Limited. All rights reserved.
 *
 * This program is free software and is provided to you under the terms of the
 * GNU General Public License version 2 as published by the Free Software
 * Foundation, and any use by you of this program is subject to the terms
 * of such GNU licence.
 *
 * A copy of the licence is included with the program, and can also be obtained
 * from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA  02110-1301, USA.
 *
 */
 
 
 
#include <mali_kbase.h>
#include <mali_kbase_defs.h>
#include <linux/pm_runtime.h>
#include <linux/suspend.h>
 
static int pm_callback_power_on(struct kbase_device *kbdev)
{
   int ret;
 
   dev_dbg(kbdev->dev, "pm_callback_power_on %p\n",
           (void *)kbdev->dev->pm_domain);
 
   ret = pm_runtime_get_sync(kbdev->dev);
 
   dev_dbg(kbdev->dev, "pm_runtime_get returned %d\n", ret);
 
   return 1;
}
 
static void pm_callback_power_off(struct kbase_device *kbdev)
{
   dev_dbg(kbdev->dev, "pm_callback_power_off\n");
 
   pm_runtime_put_autosuspend(kbdev->dev);
}
 
int kbase_device_runtime_init(struct kbase_device *kbdev)
{
   dev_dbg(kbdev->dev, "kbase_device_runtime_init\n");
   pm_runtime_enable(kbdev->dev);
 
   return 0;
}
 
void kbase_device_runtime_disable(struct kbase_device *kbdev)
{
   dev_dbg(kbdev->dev, "kbase_device_runtime_disable\n");
   pm_runtime_disable(kbdev->dev);
}
 
static int pm_callback_runtime_on(struct kbase_device *kbdev)
{
   dev_dbg(kbdev->dev, "pm_callback_runtime_on\n");
 
   return 0;
}
 
static void pm_callback_runtime_off(struct kbase_device *kbdev)
{
   dev_dbg(kbdev->dev, "pm_callback_runtime_off\n");
}
 
static void pm_callback_resume(struct kbase_device *kbdev)
{
   int ret = pm_callback_runtime_on(kbdev);
 
   WARN_ON(ret);
}
 
static void pm_callback_suspend(struct kbase_device *kbdev)
{
   pm_callback_runtime_off(kbdev);
}
 
struct kbase_pm_callback_conf pm_callbacks = {
   .power_on_callback = pm_callback_power_on,
   .power_off_callback = pm_callback_power_off,
   .power_suspend_callback = pm_callback_suspend,
   .power_resume_callback = pm_callback_resume,
#ifdef KBASE_PM_RUNTIME
   .power_runtime_init_callback = kbase_device_runtime_init,
   .power_runtime_term_callback = kbase_device_runtime_disable,
   .power_runtime_on_callback = pm_callback_runtime_on,
   .power_runtime_off_callback = pm_callback_runtime_off,
#else                /* KBASE_PM_RUNTIME */
   .power_runtime_init_callback = NULL,
   .power_runtime_term_callback = NULL,
   .power_runtime_on_callback = NULL,
   .power_runtime_off_callback = NULL,
#endif                /* KBASE_PM_RUNTIME */
};