Release 4.14 arch/arm/mach-pxa/pm.c
/*
* PXA250/210 Power Management Routines
*
* Original code for the SA11x0:
* Copyright (c) 2001 Cliff Brake <cbrake@accelent.com>
*
* Modified for the PXA250 by Nicolas Pitre:
* Copyright (c) 2002 Monta Vista Software, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License.
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/suspend.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include "pm.h"
struct pxa_cpu_pm_fns *pxa_cpu_pm_fns;
static unsigned long *sleep_save;
int pxa_pm_enter(suspend_state_t state)
{
unsigned long sleep_save_checksum = 0, checksum = 0;
int i;
#ifdef CONFIG_IWMMXT
/* force any iWMMXt context to ram **/
if (elf_hwcap & HWCAP_IWMMXT)
iwmmxt_task_disable(NULL);
#endif
/* skip registers saving for standby */
if (state != PM_SUSPEND_STANDBY && pxa_cpu_pm_fns->save) {
pxa_cpu_pm_fns->save(sleep_save);
/* before sleeping, calculate and save a checksum */
for (i = 0; i < pxa_cpu_pm_fns->save_count - 1; i++)
sleep_save_checksum += sleep_save[i];
}
/* *** go zzz *** */
pxa_cpu_pm_fns->enter(state);
if (state != PM_SUSPEND_STANDBY && pxa_cpu_pm_fns->restore) {
/* after sleeping, validate the checksum */
for (i = 0; i < pxa_cpu_pm_fns->save_count - 1; i++)
checksum += sleep_save[i];
/* if invalid, display message and wait for a hardware reset */
if (checksum != sleep_save_checksum) {
lubbock_set_hexled(0xbadbadc5);
while (1)
pxa_cpu_pm_fns->enter(state);
}
pxa_cpu_pm_fns->restore(sleep_save);
}
pr_debug("*** made it back from resume\n");
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Nico Pitre | 97 | 57.74% | 3 | 25.00% |
| Eric Miao | 53 | 31.55% | 4 | 33.33% |
| Todd Android Poynor | 7 | 4.17% | 1 | 8.33% |
| Lennert Buytenhek | 6 | 3.57% | 1 | 8.33% |
| Robert Jarzmik | 2 | 1.19% | 1 | 8.33% |
| Russell King | 2 | 1.19% | 1 | 8.33% |
| Pavel Machek | 1 | 0.60% | 1 | 8.33% |
| Total | 168 | 100.00% | 12 | 100.00% |
EXPORT_SYMBOL_GPL(pxa_pm_enter);
static int pxa_pm_valid(suspend_state_t state)
{
if (pxa_cpu_pm_fns)
return pxa_cpu_pm_fns->valid(state);
return -EINVAL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Eric Miao | 25 | 100.00% | 1 | 100.00% |
| Total | 25 | 100.00% | 1 | 100.00% |
int pxa_pm_prepare(void)
{
int ret = 0;
if (pxa_cpu_pm_fns && pxa_cpu_pm_fns->prepare)
ret = pxa_cpu_pm_fns->prepare();
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Russell King | 30 | 100.00% | 1 | 100.00% |
| Total | 30 | 100.00% | 1 | 100.00% |
void pxa_pm_finish(void)
{
if (pxa_cpu_pm_fns && pxa_cpu_pm_fns->finish)
pxa_cpu_pm_fns->finish();
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Russell King | 20 | 100.00% | 1 | 100.00% |
| Total | 20 | 100.00% | 1 | 100.00% |
static const struct platform_suspend_ops pxa_pm_ops = {
.valid = pxa_pm_valid,
.enter = pxa_pm_enter,
.prepare = pxa_pm_prepare,
.finish = pxa_pm_finish,
};
static int __init pxa_pm_init(void)
{
if (!pxa_cpu_pm_fns) {
printk(KERN_ERR "no valid pxa_cpu_pm_fns defined\n");
return -EINVAL;
}
sleep_save = kmalloc_array(pxa_cpu_pm_fns->save_count,
sizeof(*sleep_save),
GFP_KERNEL);
if (!sleep_save)
return -ENOMEM;
suspend_set_ops(&pxa_pm_ops);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Eric Miao | 52 | 85.25% | 1 | 25.00% |
| SF Markus Elfring | 6 | 9.84% | 1 | 25.00% |
| Robert Jarzmik | 2 | 3.28% | 1 | 25.00% |
| Rafael J. Wysocki | 1 | 1.64% | 1 | 25.00% |
| Total | 61 | 100.00% | 4 | 100.00% |
device_initcall(pxa_pm_init);
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Eric Miao | 162 | 43.55% | 4 | 19.05% |
| Nico Pitre | 102 | 27.42% | 3 | 14.29% |
| Russell King | 69 | 18.55% | 4 | 19.05% |
| Richard Purdie | 8 | 2.15% | 1 | 4.76% |
| Todd Android Poynor | 7 | 1.88% | 1 | 4.76% |
| Lennert Buytenhek | 6 | 1.61% | 1 | 4.76% |
| SF Markus Elfring | 6 | 1.61% | 1 | 4.76% |
| Robert Jarzmik | 4 | 1.08% | 1 | 4.76% |
| Tejun Heo | 3 | 0.81% | 1 | 4.76% |
| Rafael J. Wysocki | 2 | 0.54% | 1 | 4.76% |
| Pavel Machek | 1 | 0.27% | 1 | 4.76% |
| Lionel Debroux | 1 | 0.27% | 1 | 4.76% |
| Arnd Bergmann | 1 | 0.27% | 1 | 4.76% |
| Total | 372 | 100.00% | 21 | 100.00% |
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