[PATCHv2 06/17] ARM: mvebu: make the cpuidle initialization more generic
From: Thomas Petazzoni <hidden>
Date: 2014-07-09 13:40:10
Also in:
linux-pm
Subsystem:
arm port, arm/marvell kirkwood and armada 370, 375, 38x, 39x, xp, 3700, 7k/8k, cn9130 soc support, the rest · Maintainers:
Russell King, Andrew Lunn, Gregory Clement, Sebastian Hesselbarth, Linus Torvalds
From: Gregory CLEMENT <redacted> 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 <redacted> Signed-off-by: Thomas Petazzoni <redacted> --- arch/arm/mach-mvebu/pmsu.c | 32 ++++++++++++++++++++------------ 1 file changed, 20 insertions(+), 12 deletions(-)
diff --git a/arch/arm/mach-mvebu/pmsu.c b/arch/arm/mach-mvebu/pmsu.c
index 501d450..e976c3e 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);
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2.0.0