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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-07-27 16:19:53 +0400
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-07-27 16:19:53 +0400
commit9aadfa8fd9f8d311ba3014bf76e4d8aeee515533 (patch)
treea34c6fb208a5994438efa935466e4e0b1e730551
parent9ec7684c976bc528c2f37bbc0045fab28d16d172 (diff)
parentbe100ee83a812804d1f467f45aba9809ba49b732 (diff)
downloadlinux-9aadfa8fd9f8d311ba3014bf76e4d8aeee515533.tar.xz
Merge branch 'cpuidle-arm' into pm-cpuidle
* cpuidle-arm: ARM: ux500: cpuidle: Move ux500 cpuidle driver to drivers/cpuidle ARM: ux500: cpuidle: Remove pointless include ARM: ux500: cpuidle: Instantiate the driver from platform device ARM: davinci: cpuidle: Fix target residency cpuidle: Add Kconfig.arm and move calxeda, kirkwood and zynq
-rw-r--r--arch/arm/mach-davinci/cpuidle.c2
-rw-r--r--arch/arm/mach-ux500/Makefile1
-rw-r--r--drivers/cpuidle/Kconfig20
-rw-r--r--drivers/cpuidle/Kconfig.arm29
-rw-r--r--drivers/cpuidle/Makefile9
-rw-r--r--drivers/cpuidle/cpuidle-ux500.c (renamed from arch/arm/mach-ux500/cpuidle.c)19
-rw-r--r--drivers/mfd/db8500-prcmu.c4
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,