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yaml
---
r: 355593
b: refs/heads/master
c: 51dc525
h: refs/heads/master
i:
  355591: 0c0aaac
v: v3
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Joseph Lo authored and Stephen Warren committed Jan 29, 2013
1 parent a300edb commit e35cefc
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Showing 5 changed files with 74 additions and 1 deletion.
2 changes: 1 addition & 1 deletion [refs]
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@@ -1,2 +1,2 @@
---
refs/heads/master: 2da139657b108ab4485640178dd4d7f3ca931065
refs/heads/master: 51dc5259e8e1a05b9224e0c3ad61ebc3dc17d885
3 changes: 3 additions & 0 deletions trunk/arch/arm/mach-tegra/Makefile
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Expand Up @@ -30,6 +30,9 @@ obj-$(CONFIG_TEGRA_PCI) += pcie.o
obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += board-dt-tegra20.o
obj-$(CONFIG_ARCH_TEGRA_3x_SOC) += board-dt-tegra30.o
obj-$(CONFIG_ARCH_TEGRA_114_SOC) += board-dt-tegra114.o
ifeq ($(CONFIG_CPU_IDLE),y)
obj-$(CONFIG_ARCH_TEGRA_114_SOC) += cpuidle-tegra114.o
endif

obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += board-harmony-pcie.o

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61 changes: 61 additions & 0 deletions trunk/arch/arm/mach-tegra/cpuidle-tegra114.c
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@@ -0,0 +1,61 @@
/*
* 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 <linux/kernel.h>
#include <linux/module.h>
#include <linux/cpuidle.h>

#include <asm/cpuidle.h>

static 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);

int __init tegra114_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;
}

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;
}
3 changes: 3 additions & 0 deletions trunk/arch/arm/mach-tegra/cpuidle.c
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Expand Up @@ -38,6 +38,9 @@ static int __init tegra_cpuidle_init(void)
case TEGRA30:
ret = tegra30_cpuidle_init();
break;
case TEGRA114:
ret = tegra114_cpuidle_init();
break;
default:
ret = -ENODEV;
break;
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6 changes: 6 additions & 0 deletions trunk/arch/arm/mach-tegra/cpuidle.h
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Expand Up @@ -29,4 +29,10 @@ int tegra30_cpuidle_init(void);
static inline int tegra30_cpuidle_init(void) { return -ENODEV; }
#endif

#ifdef CONFIG_ARCH_TEGRA_114_SOC
int tegra114_cpuidle_init(void);
#else
static inline int tegra114_cpuidle_init(void) { return -ENODEV; }
#endif

#endif

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