Contributors: 9
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Joseph Lo |
183 |
67.03% |
2 |
14.29% |
| Tomeu Vizoso |
35 |
12.82% |
1 |
7.14% |
| Thierry Reding |
22 |
8.06% |
4 |
28.57% |
| Alexandre Courbot |
18 |
6.59% |
1 |
7.14% |
| Dmitry Osipenko |
4 |
1.47% |
1 |
7.14% |
| Rafael J. Wysocki |
3 |
1.10% |
1 |
7.14% |
| Thomas Gleixner |
3 |
1.10% |
2 |
14.29% |
| Daniel Lezcano |
3 |
1.10% |
1 |
7.14% |
| Bartlomiej Zolnierkiewicz |
2 |
0.73% |
1 |
7.14% |
| Total |
273 |
|
14 |
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2013, NVIDIA Corporation. All rights reserved.
*/
#include <asm/firmware.h>
#include <linux/tick.h>
#include <linux/cpuidle.h>
#include <linux/cpu_pm.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/firmware/trusted_foundations.h>
#include <asm/cpuidle.h>
#include <asm/smp_plat.h>
#include <asm/suspend.h>
#include <asm/psci.h>
#include "cpuidle.h"
#include "pm.h"
#include "sleep.h"
#ifdef CONFIG_PM_SLEEP
#define TEGRA114_MAX_STATES 2
#else
#define TEGRA114_MAX_STATES 1
#endif
#ifdef CONFIG_PM_SLEEP
static int tegra114_idle_power_down(struct cpuidle_device *dev,
struct cpuidle_driver *drv,
int index)
{
local_fiq_disable();
tegra_set_cpu_in_lp2();
cpu_pm_enter();
call_firmware_op(prepare_idle, TF_PM_MODE_LP2_NOFLUSH_L2);
/* Do suspend by ourselves if the firmware does not implement it */
if (call_firmware_op(do_idle, 0) == -ENOSYS)
cpu_suspend(0, tegra30_sleep_cpu_secondary_finish);
cpu_pm_exit();
tegra_clear_cpu_in_lp2();
local_fiq_enable();
return index;
}
static void tegra114_idle_enter_s2idle(struct cpuidle_device *dev,
struct cpuidle_driver *drv,
int index)
{
tegra114_idle_power_down(dev, drv, index);
}
#endif
static struct cpuidle_driver tegra_idle_driver = {
.name = "tegra_idle",
.owner = THIS_MODULE,
.state_count = TEGRA114_MAX_STATES,
.states = {
[0] = ARM_CPUIDLE_WFI_STATE_PWR(600),
#ifdef CONFIG_PM_SLEEP
[1] = {
.enter = tegra114_idle_power_down,
.enter_s2idle = tegra114_idle_enter_s2idle,
.exit_latency = 500,
.target_residency = 1000,
.flags = CPUIDLE_FLAG_TIMER_STOP,
.power_usage = 0,
.name = "powered-down",
.desc = "CPU power gated",
},
#endif
},
};
int __init tegra114_cpuidle_init(void)
{
if (!psci_smp_available())
return cpuidle_register(&tegra_idle_driver, NULL);
return 0;
}