Release 4.14 arch/sh/kernel/cpu/shmobile/cpuidle.c
/*
* arch/sh/kernel/cpu/shmobile/cpuidle.c
*
* Cpuidle support code for SuperH Mobile
*
* Copyright (C) 2009 Magnus Damm
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/io.h>
#include <linux/suspend.h>
#include <linux/cpuidle.h>
#include <linux/export.h>
#include <asm/suspend.h>
#include <linux/uaccess.h>
static unsigned long cpuidle_mode[] = {
SUSP_SH_SLEEP, /* regular sleep mode */
SUSP_SH_SLEEP | SUSP_SH_SF, /* sleep mode + self refresh */
SUSP_SH_STANDBY | SUSP_SH_SF, /* software standby mode + self refresh */
};
static int cpuidle_sleep_enter(struct cpuidle_device *dev,
struct cpuidle_driver *drv,
int index)
{
unsigned long allowed_mode = SUSP_SH_SLEEP;
int requested_state = index;
int allowed_state;
int k;
/* convert allowed mode to allowed state */
for (k = ARRAY_SIZE(cpuidle_mode) - 1; k > 0; k--)
if (cpuidle_mode[k] == allowed_mode)
break;
allowed_state = k;
/* take the following into account for sleep mode selection:
* - allowed_state: best mode allowed by hardware (clock deps)
* - requested_state: best mode allowed by software (latencies)
*/
k = min_t(int, allowed_state, requested_state);
sh_mobile_call_standby(cpuidle_mode[k]);
return k;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Magnus Damm | 83 | 90.22% | 1 | 25.00% |
| Deepthi Dharwar | 8 | 8.70% | 2 | 50.00% |
| Paul Mundt | 1 | 1.09% | 1 | 25.00% |
| Total | 92 | 100.00% | 4 | 100.00% |
static struct cpuidle_driver cpuidle_driver = {
.name = "sh_idle",
.owner = THIS_MODULE,
.states = {
{
.exit_latency = 1,
.target_residency = 1 * 2,
.power_usage = 3,
.enter = cpuidle_sleep_enter,
.name = "C1",
.desc = "SuperH Sleep Mode",
},
{
.exit_latency = 100,
.target_residency = 1 * 2,
.power_usage = 1,
.enter = cpuidle_sleep_enter,
.name = "C2",
.desc = "SuperH Sleep Mode [SF]",
.disabled = true,
},
{
.exit_latency = 2300,
.target_residency = 1 * 2,
.power_usage = 1,
.enter = cpuidle_sleep_enter,
.name = "C3",
.desc = "SuperH Mobile Standby Mode [SF]",
.disabled = true,
},
},
.safe_state_index = 0,
.state_count = 3,
};
int __init sh_mobile_setup_cpuidle(void)
{
if (sh_mobile_sleep_supported & SUSP_SH_SF)
cpuidle_driver.states[1].disabled = false;
if (sh_mobile_sleep_supported & SUSP_SH_STANDBY)
cpuidle_driver.states[2].disabled = false;
return cpuidle_register(&cpuidle_driver, NULL);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Daniel Lezcano | 43 | 84.31% | 3 | 50.00% |
| Magnus Damm | 5 | 9.80% | 1 | 16.67% |
| Geert Uytterhoeven | 2 | 3.92% | 1 | 16.67% |
| Deepthi Dharwar | 1 | 1.96% | 1 | 16.67% |
| Total | 51 | 100.00% | 6 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Magnus Damm | 193 | 57.78% | 2 | 16.67% |
| Daniel Lezcano | 121 | 36.23% | 3 | 25.00% |
| Deepthi Dharwar | 11 | 3.29% | 2 | 16.67% |
| Paul Gortmaker | 3 | 0.90% | 1 | 8.33% |
| Geert Uytterhoeven | 2 | 0.60% | 1 | 8.33% |
| Robert Lee | 2 | 0.60% | 1 | 8.33% |
| Paul Mundt | 1 | 0.30% | 1 | 8.33% |
| Linus Torvalds | 1 | 0.30% | 1 | 8.33% |
| Total | 334 | 100.00% | 12 | 100.00% |
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.