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ARM: tegra: cpuidle: separate cpuidle driver for different chips

Bladeren bron 
The different Tegra chips may have different CPU idle states and data.
Individual CPU idle driver make it more easy to maintain.

Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
This commit is contained in:
Joseph Lo
2012-10-31 17:41:15 +08:00
gecommit door Stephen Warren
bovenliggende 641b4ef8f1
commit 0b25e25bef
5 gewijzigde bestanden met toevoegingen van 184 en 34 verwijderingen
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47
arch/arm/mach-tegra/cpuidle.c
Bestand weergeven

@@ -23,47 +23,26 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/cpuidle.h>
#include <asm/cpuidle.h>
struct cpuidle_driver tegra_idle_driver = {
.name = "tegra_idle",
.owner = THIS_MODULE,
.en_core_tk_irqen = 1,
.state_count = 1,
.states = {
[0] = ARM_CPUIDLE_WFI_STATE_PWR(600),
},
};
static DEFINE_PER_CPU(struct cpuidle_device, tegra_idle_device);
#include "fuse.h"
#include "cpuidle.h"
static int __init tegra_cpuidle_init(void)
{
int ret;
unsigned int cpu;
struct cpuidle_device *dev;
struct cpuidle_driver *drv = &tegra_idle_driver;
ret = cpuidle_register_driver(&tegra_idle_driver);
if (ret) {
pr_err("CPUidle driver registration failed\n");
return ret;
switch (tegra_chip_id) {
case TEGRA20:
ret = tegra20_cpuidle_init();
break;
case TEGRA30:
ret = tegra30_cpuidle_init();
break;
default:
ret = -ENODEV;
break;
}
for_each_possible_cpu(cpu) {
dev = &per_cpu(tegra_idle_device, cpu);
dev->cpu = cpu;
dev->state_count = drv->state_count;
ret = cpuidle_register_device(dev);
if (ret) {
pr_err("CPU%u: CPUidle device registration failed\n",
cpu);
return ret;
}
}
return 0;
return ret;
}
device_initcall(tegra_cpuidle_init);