cregit-Linux how code gets into the kernel

Release 4.7 drivers/cpuidle/cpuidle-calxeda.c

Directory: drivers/cpuidle
/*
 * Copyright 2012 Calxeda, Inc.
 *
 * Based on arch/arm/plat-mxc/cpuidle.c: #v3.7
 * Copyright 2012 Freescale Semiconductor, Inc.
 * Copyright 2012 Linaro Ltd.
 *
 * 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/>.
 *
 * Maintainer: Rob Herring <rob.herring@calxeda.com>
 */

#include <linux/cpuidle.h>
#include <linux/cpu_pm.h>
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/platform_device.h>
#include <linux/psci.h>

#include <asm/cpuidle.h>
#include <asm/suspend.h>

#include <uapi/linux/psci.h>


#define CALXEDA_IDLE_PARAM \
	((0 << PSCI_0_2_POWER_STATE_ID_SHIFT) | \
         (0 << PSCI_0_2_POWER_STATE_AFFL_SHIFT) | \
         (PSCI_POWER_STATE_TYPE_POWER_DOWN << PSCI_0_2_POWER_STATE_TYPE_SHIFT))


static int calxeda_idle_finish(unsigned long val) { return psci_ops.cpu_suspend(CALXEDA_IDLE_PARAM, __pa(cpu_resume)); }

Contributors

PersonTokensPropCommitsCommitProp
rob herringrob herring2295.65%266.67%
mark rutlandmark rutland14.35%133.33%
Total23100.00%3100.00%


static int calxeda_pwrdown_idle(struct cpuidle_device *dev, struct cpuidle_driver *drv, int index) { cpu_pm_enter(); cpu_suspend(0, calxeda_idle_finish); cpu_pm_exit(); return index; }

Contributors

PersonTokensPropCommitsCommitProp
rob herringrob herring35100.00%2100.00%
Total35100.00%2100.00%

static struct cpuidle_driver calxeda_idle_driver = { .name = "calxeda_idle", .states = { ARM_CPUIDLE_WFI_STATE, { .name = "PG", .desc = "Power Gate", .exit_latency = 30, .power_usage = 50, .target_residency = 200, .enter = calxeda_pwrdown_idle, }, }, .state_count = 2, };
static int calxeda_cpuidle_probe(struct platform_device *pdev) { return cpuidle_register(&calxeda_idle_driver, NULL); }

Contributors

PersonTokensPropCommitsCommitProp
rob herringrob herring1155.00%133.33%
daniel lezcanodaniel lezcano945.00%266.67%
Total20100.00%3100.00%

static struct platform_driver calxeda_cpuidle_plat_driver = { .driver = { .name = "cpuidle-calxeda", }, .probe = calxeda_cpuidle_probe, }; builtin_platform_driver(calxeda_cpuidle_plat_driver);

Overall Contributors

PersonTokensPropCommitsCommitProp
rob herringrob herring14976.80%337.50%
daniel lezcanodaniel lezcano3417.53%337.50%
mark rutlandmark rutland105.15%112.50%
paul gortmakerpaul gortmaker10.52%112.50%
Total194100.00%8100.00%
Directory: drivers/cpuidle
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