7 files changed, 58 insertions, 26 deletions

diff --git a/arch/arm/mach-davinci/cpuidle.c b/arch/arm/mach-davinci/cpuidle.c
index 36aef3a7dedb..f1ac1c94ac0f 100644
--- a/arch/arm/mach-davinci/cpuidle.c
+++ b/arch/arm/mach-davinci/cpuidle.c
@@ -65,7 +65,7 @@ static struct cpuidle_driver davinci_idle_driver = {
         .states[1]              = {
                 .enter                  = davinci_enter_idle,
                 .exit_latency           = 10,
-                .target_residency       = 100000,
+                .target_residency       = 10000,
                 .flags                  = CPUIDLE_FLAG_TIME_VALID,
                 .name                   = "DDR SR",
                 .desc                   = "WFI and DDR Self Refresh",
diff --git a/arch/arm/mach-ux500/Makefile b/arch/arm/mach-ux500/Makefile
index bf9b6be5b180..fe1f3e26b88b 100644
--- a/arch/arm/mach-ux500/Makefile
+++ b/arch/arm/mach-ux500/Makefile
@@ -4,7 +4,6 @@
 
 obj-y                           := cpu.o devices.o devices-common.o \
                                    id.o usb.o timer.o pm.o
-obj-$(CONFIG_CPU_IDLE)          += cpuidle.o
 obj-$(CONFIG_CACHE_L2X0)        += cache-l2x0.o
 obj-$(CONFIG_UX500_SOC_DB8500)  += cpu-db8500.o devices-db8500.o
 obj-$(CONFIG_MACH_MOP500)       += board-mop500.o board-mop500-sdi.o \
diff --git a/drivers/cpuidle/Kconfig b/drivers/cpuidle/Kconfig
index 0e2cd5cab4d0..b3fb81d7cf04 100644
--- a/drivers/cpuidle/Kconfig
+++ b/drivers/cpuidle/Kconfig
@@ -1,5 +1,6 @@
+menu "CPU Idle"
 
-menuconfig CPU_IDLE
+config CPU_IDLE
         bool "CPU idle PM support"
         default y if ACPI || PPC_PSERIES
         select CPU_IDLE_GOV_LADDER if (!NO_HZ && !NO_HZ_IDLE)
@@ -29,20 +30,13 @@ config CPU_IDLE_GOV_MENU
         bool "Menu governor (for tickless system)"
         default y
 
-config CPU_IDLE_CALXEDA
-        bool "CPU Idle Driver for Calxeda processors"
-        depends on ARCH_HIGHBANK
-        select ARM_CPU_SUSPEND
-        help
-          Select this to enable cpuidle on Calxeda processors.
-
-config CPU_IDLE_ZYNQ
-        bool "CPU Idle Driver for Xilinx Zynq processors"
-        depends on ARCH_ZYNQ
-        help
-          Select this to enable cpuidle on Xilinx Zynq processors.
+menu "ARM CPU Idle Drivers"
+depends on ARM
+source "drivers/cpuidle/Kconfig.arm"
+endmenu
 
 endif
 
 config ARCH_NEEDS_CPU_IDLE_COUPLED
         def_bool n
+endmenu
diff --git a/drivers/cpuidle/Kconfig.arm b/drivers/cpuidle/Kconfig.arm
new file mode 100644
index 000000000000..b3302193c15a
--- /dev/null
+++ b/drivers/cpuidle/Kconfig.arm
@@ -0,0 +1,29 @@
+#
+# ARM CPU Idle drivers
+#
+
+config ARM_HIGHBANK_CPUIDLE
+        bool "CPU Idle Driver for Calxeda processors"
+        depends on ARCH_HIGHBANK
+        select ARM_CPU_SUSPEND
+        help
+          Select this to enable cpuidle on Calxeda processors.
+
+config ARM_KIRKWOOD_CPUIDLE
+        bool "CPU Idle Driver for Marvell Kirkwood SoCs"
+        depends on ARCH_KIRKWOOD
+        help
+          This adds the CPU Idle driver for Marvell Kirkwood SoCs.
+
+config ARM_ZYNQ_CPUIDLE
+        bool "CPU Idle Driver for Xilinx Zynq processors"
+        depends on ARCH_ZYNQ
+        help
+          Select this to enable cpuidle on Xilinx Zynq processors.
+
+config ARM_U8500_CPUIDLE
+        bool "Cpu Idle Driver for the ST-E u8500 processors"
+        depends on ARCH_U8500
+        help
+          Select this to enable cpuidle for ST-E u8500 processors
+
diff --git a/drivers/cpuidle/Makefile b/drivers/cpuidle/Makefile
index 8767a7b3eb91..0b9d200c7e45 100644
--- a/drivers/cpuidle/Makefile
+++ b/drivers/cpuidle/Makefile
@@ -5,6 +5,9 @@
 obj-y += cpuidle.o driver.o governor.o sysfs.o governors/
 obj-$(CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED) += coupled.o
 
-obj-$(CONFIG_CPU_IDLE_CALXEDA) += cpuidle-calxeda.o
-obj-$(CONFIG_ARCH_KIRKWOOD) += cpuidle-kirkwood.o
-obj-$(CONFIG_CPU_IDLE_ZYNQ) += cpuidle-zynq.o
+##################################################################################
+# ARM SoC drivers
+obj-$(CONFIG_ARM_HIGHBANK_CPUIDLE)      += cpuidle-calxeda.o
+obj-$(CONFIG_ARM_KIRKWOOD_CPUIDLE)      += cpuidle-kirkwood.o
+obj-$(CONFIG_ARM_ZYNQ_CPUIDLE)          += cpuidle-zynq.o
+obj-$(CONFIG_ARM_U8500_CPUIDLE)         += cpuidle-ux500.o
diff --git a/arch/arm/mach-ux500/cpuidle.c b/drivers/cpuidle/cpuidle-ux500.c
index a45dd09daed9..e0564652af35 100644
--- a/arch/arm/mach-ux500/cpuidle.c
+++ b/drivers/cpuidle/cpuidle-ux500.c
@@ -16,13 +16,11 @@
 #include <linux/smp.h>
 #include <linux/mfd/dbx500-prcmu.h>
 #include <linux/platform_data/arm-ux500-pm.h>
+#include <linux/platform_device.h>
 
 #include <asm/cpuidle.h>
 #include <asm/proc-fns.h>
 
-#include "db8500-regs.h"
-#include "id.h"
-
 static atomic_t master = ATOMIC_INIT(0);
 static DEFINE_SPINLOCK(master_lock);
 
@@ -113,11 +111,8 @@ static struct cpuidle_driver ux500_idle_driver = {
         .state_count = 2,
 };
 
-int __init ux500_idle_init(void)
+static int __init dbx500_cpuidle_probe(struct platform_device *pdev)
 {
-        if (!(cpu_is_u8500_family() || cpu_is_ux540_family()))
-                return -ENODEV;
-
         /* Configure wake up reasons */
         prcmu_enable_wakeups(PRCMU_WAKEUP(ARM) | PRCMU_WAKEUP(RTC) |
                              PRCMU_WAKEUP(ABB));
@@ -125,4 +120,12 @@ int __init ux500_idle_init(void)
         return cpuidle_register(&ux500_idle_driver, NULL);
 }
 
-device_initcall(ux500_idle_init);
+static struct platform_driver dbx500_cpuidle_plat_driver = {
+        .driver = {
+                .name = "cpuidle-dbx500",
+                .owner = THIS_MODULE,
+        },
+        .probe = dbx500_cpuidle_probe,
+};
+
+module_platform_driver(dbx500_cpuidle_plat_driver);
diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c
index 3c157faee645..0d68eb1a5ec5 100644
--- a/drivers/mfd/db8500-prcmu.c
+++ b/drivers/mfd/db8500-prcmu.c
@@ -3094,6 +3094,10 @@ static struct mfd_cell db8500_prcmu_devs[] = {
                 .pdata_size = sizeof(db8500_cpufreq_table),
         },
         {
+                .name = "cpuidle-dbx500",
+                .of_compatible = "stericsson,cpuidle-dbx500",
+        },
+        {
                 .name = "db8500-thermal",
                 .num_resources = ARRAY_SIZE(db8500_thsens_resources),
                 .resources = db8500_thsens_resources,