[PATCH v5 14/14] ARM: mvebu: register the cpuidle driver for the Armada XP SoCs
From: Gregory CLEMENT <hidden>
Date: 2014-03-25 22:49:29
Also in:
linux-pm, lkml
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
The cpuidle is a platform driver so we register the device just after the initialization of the board in an arch_initcall. Signed-off-by: Gregory CLEMENT <redacted> --- arch/arm/mach-mvebu/pmsu.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+)
diff --git a/arch/arm/mach-mvebu/pmsu.c b/arch/arm/mach-mvebu/pmsu.c
index 5812ff4a9b63..fa611594b65a 100644
--- a/arch/arm/mach-mvebu/pmsu.c
+++ b/arch/arm/mach-mvebu/pmsu.c@@ -21,6 +21,7 @@ #include <linux/init.h> #include <linux/of_address.h> #include <linux/io.h> +#include <linux/platform_device.h> #include <linux/smp.h> #include <asm/cacheflush.h> #include <asm/cp15.h>
@@ -65,6 +66,10 @@ static void __iomem *pmsu_reset_base; extern void ll_disable_coherency(void); extern void ll_enable_coherency(void); +static struct platform_device armada_xp_cpuidle_device = { + .name = "cpuidle-armada-370-xp", +}; + static struct of_device_id of_pmsu_table[] = { { .compatible = "marvell,armada-370-pmsu",
@@ -285,4 +290,21 @@ static struct notifier_block armada_370_xp_cpu_pm_notifier = { .notifier_call = armada_370_xp_cpu_pm_notify, }; +int __init armada_370_xp_cpu_pm_init(void) +{ + if (!((of_find_compatible_node(NULL, NULL, "marvell,armada-370-xp-pmsu") || + of_find_compatible_node(NULL, NULL, "marvell,armada-370-pmsu")) + && of_find_compatible_node(NULL, NULL, "marvell,coherency-fabric") + && of_machine_is_compatible("marvell,armadaxp"))) + return 0; + + armada_370_xp_pmsu_enable_l2_powerdown_onidle(); + armada_xp_cpuidle_device.dev.platform_data = armada_370_xp_cpu_suspend; + platform_device_register(&armada_xp_cpuidle_device); + cpu_pm_register_notifier(&armada_370_xp_cpu_pm_notifier); + + return 0; +} + +arch_initcall(armada_370_xp_cpu_pm_init); early_initcall(armada_370_xp_pmsu_init);
--
1.8.1.2