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authorThomas Petazzoni <thomas.petazzoni@free-electrons.com>2014-07-23 17:00:50 +0400
committerJason Cooper <jason@lakedaemon.net>2014-07-24 15:47:29 +0400
commitc16788b431d708afb73ffdd41fd8a16ab11bf89e (patch)
tree7e90eb467167cb64b02121287e154eb2f9ec83a5 /drivers/cpuidle
parentc3c7fe7ce0d8a3ef55ebb88f3b24e074735845dd (diff)
downloadlinux-c16788b431d708afb73ffdd41fd8a16ab11bf89e.tar.xz
cpuidle: mvebu: add Armada 38x support
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>
Diffstat (limited to 'drivers/cpuidle')
-rw-r--r--drivers/cpuidle/cpuidle-mvebu-v7.c29
1 files changed, 28 insertions, 1 deletions
diff --git a/drivers/cpuidle/cpuidle-mvebu-v7.c b/drivers/cpuidle/cpuidle-mvebu-v7.c
index d23597f25093..45371bb16214 100644
--- a/drivers/cpuidle/cpuidle-mvebu-v7.c
+++ b/drivers/cpuidle/cpuidle-mvebu-v7.c
@@ -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
*
@@ -86,6 +86,21 @@ static struct cpuidle_driver armada370_idle_driver = {
.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)
{
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);
else if (!strcmp(pdev->dev.driver->name, "cpuidle-armada-370"))
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
return -EINVAL;
}
@@ -118,6 +135,16 @@ static struct 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_DESCRIPTION("Marvell EBU v7 cpuidle driver");
MODULE_LICENSE("GPL");