Release 4.11 arch/arm/mach-tegra/cpuidle-tegra114.c
/*
* Copyright (c) 2013, NVIDIA Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#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 <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);
/* 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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Joseph Lo | 47 | 72.31% | 1 | 33.33% |
| Alexandre Courbot | 16 | 24.62% | 1 | 33.33% |
| Bartlomiej Zolnierkiewicz | 2 | 3.08% | 1 | 33.33% |
| Total | 65 | 100.00% | 3 | 100.00% |
static void tegra114_idle_enter_freeze(struct cpuidle_device *dev,
struct cpuidle_driver *drv,
int index)
{
tegra114_idle_power_down(dev, drv, index);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tomeu Vizoso | 28 | 100.00% | 1 | 100.00% |
| Total | 28 | 100.00% | 1 | 100.00% |
#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_freeze = tegra114_idle_enter_freeze,
.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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Joseph Lo | 14 | 53.85% | 1 | 33.33% |
| Thierry Reding | 9 | 34.62% | 1 | 33.33% |
| Daniel Lezcano | 3 | 11.54% | 1 | 33.33% |
| Total | 26 | 100.00% | 3 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Joseph Lo | 185 | 69.29% | 2 | 20.00% |
| Tomeu Vizoso | 38 | 14.23% | 1 | 10.00% |
| Thierry Reding | 20 | 7.49% | 3 | 30.00% |
| Alexandre Courbot | 18 | 6.74% | 1 | 10.00% |
| Daniel Lezcano | 3 | 1.12% | 1 | 10.00% |
| Bartlomiej Zolnierkiewicz | 2 | 0.75% | 1 | 10.00% |
| Thomas Gleixner | 1 | 0.37% | 1 | 10.00% |
| Total | 267 | 100.00% | 10 | 100.00% |
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