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authorGregory CLEMENT <gregory.clement@free-electrons.com>2014-07-23 15:00:43 +0200
committerJason Cooper <jason@lakedaemon.net>2014-07-24 13:46:16 +0200
commit54a4d1b8d4ca808f46fc3ad3fd9b2c6fd79286a9 (patch)
tree0738210d681bb12f95d6a51da79069fd5d125d4e /arch/arm/mach-mvebu
parentARM: mvebu: rename the armada_370_xp symbols to mvebu_v7 in pmsu.c (diff)
downloadlinux-54a4d1b8d4ca808f46fc3ad3fd9b2c6fd79286a9.tar.xz
linux-54a4d1b8d4ca808f46fc3ad3fd9b2c6fd79286a9.zip
ARM: mvebu: make the cpuidle initialization more generic
In preparation to the addition of the cpuidle support for more SoCs, this patch moves the Armada XP specific initialization to a separate function. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Link: https://lkml.kernel.org/r/1406120453-29291-7-git-send-email-thomas.petazzoni@free-electrons.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Diffstat (limited to 'arch/arm/mach-mvebu')
-rw-r--r--arch/arm/mach-mvebu/pmsu.c32
1 files changed, 20 insertions, 12 deletions
diff --git a/arch/arm/mach-mvebu/pmsu.c b/arch/arm/mach-mvebu/pmsu.c
index 501d4503d859..e976c3e5e1fe 100644
--- a/arch/arm/mach-mvebu/pmsu.c
+++ b/arch/arm/mach-mvebu/pmsu.c
@@ -311,31 +311,39 @@ static struct notifier_block mvebu_v7_cpu_pm_notifier = {
.notifier_call = mvebu_v7_cpu_pm_notify,
};
-static int __init mvebu_v7_cpu_pm_init(void)
+static int __init armada_xp_cpuidle_init(void)
{
struct device_node *np;
- /*
- * Check that all the requirements are available to enable
- * cpuidle. So far, it is only supported on Armada XP, cpuidle
- * needs the coherency fabric and the PMSU enabled
- */
-
- if (!of_machine_is_compatible("marvell,armadaxp"))
- return 0;
-
np = of_find_compatible_node(NULL, NULL, "marvell,coherency-fabric");
if (!np)
- return 0;
+ return -ENODEV;
of_node_put(np);
+ mvebu_v7_cpuidle_device.dev.platform_data = armada_370_xp_cpu_suspend;
+
+ return 0;
+}
+
+static int __init mvebu_v7_cpu_pm_init(void)
+{
+ struct device_node *np;
+ int ret;
+
np = of_find_matching_node(NULL, of_pmsu_table);
if (!np)
return 0;
of_node_put(np);
+ if (of_machine_is_compatible("marvell,armadaxp"))
+ ret = armada_xp_cpuidle_init();
+ else
+ return 0;
+
+ if (ret)
+ return ret;
+
mvebu_v7_pmsu_enable_l2_powerdown_onidle();
- mvebu_v7_cpuidle_device.dev.platform_data = armada_370_xp_cpu_suspend;
platform_device_register(&mvebu_v7_cpuidle_device);
cpu_pm_register_notifier(&mvebu_v7_cpu_pm_notifier);