iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

cpuidle: mvebu: add Armada 38x support

Browse Source 
This commit adds the list of cpuidle states supported by the Armada
38x SoC in the cpuidle-mvebu-v7 driver, as well as the necessary logic
around it to support this SoC.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lkml.kernel.org/r/1406120453-29291-14-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
This commit is contained in:
Thomas Petazzoni 2014-07-23 15:00:50 +02:00 committed by Jason Cooper
parent c3c7fe7ce0
commit c16788b431
1 changed files with 28 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
drivers/cpuidle/cpuidle-mvebu-v7.c
View File

@ -1,5 +1,5 @@
/* /*
* Marvell Armada 370 and Armada XP SoC cpuidle driver * Marvell Armada 370, 38x and XP SoC cpuidle driver
* *
* Copyright (C) 2014 Marvell * Copyright (C) 2014 Marvell
* *
@ -86,6 +86,21 @@ static struct cpuidle_driver armada370_idle_driver = {
.state_count = 2, .state_count = 2,
}; };
static struct cpuidle_driver armada38x_idle_driver = {
.name = "armada_38x_idle",
.states[0] = ARM_CPUIDLE_WFI_STATE,
.states[1] = {
.enter = mvebu_v7_enter_idle,
.exit_latency = 10,
.power_usage = 5,
.target_residency = 100,
.flags = CPUIDLE_FLAG_TIME_VALID,
.name = "Idle",
.desc = "CPU and SCU power down",
},
.state_count = 2,
};
static int mvebu_v7_cpuidle_probe(struct platform_device *pdev) static int mvebu_v7_cpuidle_probe(struct platform_device *pdev)
{ {
mvebu_v7_cpu_suspend = pdev->dev.platform_data; mvebu_v7_cpu_suspend = pdev->dev.platform_data;
@ -94,6 +109,8 @@ static int mvebu_v7_cpuidle_probe(struct platform_device *pdev)
return cpuidle_register(&armadaxp_idle_driver, NULL); return cpuidle_register(&armadaxp_idle_driver, NULL);
else if (!strcmp(pdev->dev.driver->name, "cpuidle-armada-370")) else if (!strcmp(pdev->dev.driver->name, "cpuidle-armada-370"))
return cpuidle_register(&armada370_idle_driver, NULL); return cpuidle_register(&armada370_idle_driver, NULL);
else if (!strcmp(pdev->dev.driver->name, "cpuidle-armada-38x"))
return cpuidle_register(&armada38x_idle_driver, NULL);
else else
return -EINVAL; return -EINVAL;
} }
@ -118,6 +135,16 @@ static struct platform_driver armada370_cpuidle_plat_driver = {
module_platform_driver(armada370_cpuidle_plat_driver); module_platform_driver(armada370_cpuidle_plat_driver);
static struct platform_driver armada38x_cpuidle_plat_driver = {
.driver = {
.name = "cpuidle-armada-38x",
.owner = THIS_MODULE,
},
.probe = mvebu_v7_cpuidle_probe,
};
module_platform_driver(armada38x_cpuidle_plat_driver);
MODULE_AUTHOR("Gregory CLEMENT <gregory.clement@free-electrons.com>"); MODULE_AUTHOR("Gregory CLEMENT <gregory.clement@free-electrons.com>");
MODULE_DESCRIPTION("Marvell EBU v7 cpuidle driver"); MODULE_DESCRIPTION("Marvell EBU v7 cpuidle driver");
MODULE_LICENSE("GPL"); MODULE_LICENSE("GPL");