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author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-11-07 10:13:52 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-11-07 10:13:52 -0800 |
commit | 3c00303206c3a1ccd86579efdc90bc35f140962e (patch) | |
tree | 66170c84b5ddaeb102aea3530517a26657b6ea29 /arch/arm/mach-at91 | |
parent | 83dbb15e9cd78a3619e3db36777e2f81d09b2914 (diff) | |
parent | efb90582c575084723cc14302c1300cb26c7e01f (diff) | |
download | op-kernel-dev-3c00303206c3a1ccd86579efdc90bc35f140962e.zip op-kernel-dev-3c00303206c3a1ccd86579efdc90bc35f140962e.tar.gz |
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
cpuidle: Single/Global registration of idle states
cpuidle: Split cpuidle_state structure and move per-cpu statistics fields
cpuidle: Remove CPUIDLE_FLAG_IGNORE and dev->prepare()
cpuidle: Move dev->last_residency update to driver enter routine; remove dev->last_state
ACPI: Fix CONFIG_ACPI_DOCK=n compiler warning
ACPI: Export FADT pm_profile integer value to userspace
thermal: Prevent polling from happening during system suspend
ACPI: Drop ACPI_NO_HARDWARE_INIT
ACPI atomicio: Convert width in bits to bytes in __acpi_ioremap_fast()
PNPACPI: Simplify disabled resource registration
ACPI: Fix possible recursive locking in hwregs.c
ACPI: use kstrdup()
mrst pmu: update comment
tools/power turbostat: less verbose debugging
Diffstat (limited to 'arch/arm/mach-at91')
-rw-r--r-- | arch/arm/mach-at91/cpuidle.c | 41 |
1 files changed, 23 insertions, 18 deletions
diff --git a/arch/arm/mach-at91/cpuidle.c b/arch/arm/mach-at91/cpuidle.c index f474272..a851e6c9 100644 --- a/arch/arm/mach-at91/cpuidle.c +++ b/arch/arm/mach-at91/cpuidle.c @@ -34,7 +34,8 @@ static struct cpuidle_driver at91_idle_driver = { /* Actual code that puts the SoC in different idle states */ static int at91_enter_idle(struct cpuidle_device *dev, - struct cpuidle_state *state) + struct cpuidle_driver *drv, + int index) { struct timeval before, after; int idle_time; @@ -42,10 +43,10 @@ static int at91_enter_idle(struct cpuidle_device *dev, local_irq_disable(); do_gettimeofday(&before); - if (state == &dev->states[0]) + if (index == 0) /* Wait for interrupt state */ cpu_do_idle(); - else if (state == &dev->states[1]) { + else if (index == 1) { asm("b 1f; .align 5; 1:"); asm("mcr p15, 0, r0, c7, c10, 4"); /* drain write buffer */ saved_lpr = sdram_selfrefresh_enable(); @@ -56,34 +57,38 @@ static int at91_enter_idle(struct cpuidle_device *dev, local_irq_enable(); idle_time = (after.tv_sec - before.tv_sec) * USEC_PER_SEC + (after.tv_usec - before.tv_usec); - return idle_time; + + dev->last_residency = idle_time; + return index; } /* Initialize CPU idle by registering the idle states */ static int at91_init_cpuidle(void) { struct cpuidle_device *device; - - cpuidle_register_driver(&at91_idle_driver); + struct cpuidle_driver *driver = &at91_idle_driver; device = &per_cpu(at91_cpuidle_device, smp_processor_id()); device->state_count = AT91_MAX_STATES; + driver->state_count = AT91_MAX_STATES; /* Wait for interrupt state */ - device->states[0].enter = at91_enter_idle; - device->states[0].exit_latency = 1; - device->states[0].target_residency = 10000; - device->states[0].flags = CPUIDLE_FLAG_TIME_VALID; - strcpy(device->states[0].name, "WFI"); - strcpy(device->states[0].desc, "Wait for interrupt"); + driver->states[0].enter = at91_enter_idle; + driver->states[0].exit_latency = 1; + driver->states[0].target_residency = 10000; + driver->states[0].flags = CPUIDLE_FLAG_TIME_VALID; + strcpy(driver->states[0].name, "WFI"); + strcpy(driver->states[0].desc, "Wait for interrupt"); /* Wait for interrupt and RAM self refresh state */ - device->states[1].enter = at91_enter_idle; - device->states[1].exit_latency = 10; - device->states[1].target_residency = 10000; - device->states[1].flags = CPUIDLE_FLAG_TIME_VALID; - strcpy(device->states[1].name, "RAM_SR"); - strcpy(device->states[1].desc, "WFI and RAM Self Refresh"); + driver->states[1].enter = at91_enter_idle; + driver->states[1].exit_latency = 10; + driver->states[1].target_residency = 10000; + driver->states[1].flags = CPUIDLE_FLAG_TIME_VALID; + strcpy(driver->states[1].name, "RAM_SR"); + strcpy(driver->states[1].desc, "WFI and RAM Self Refresh"); + + cpuidle_register_driver(&at91_idle_driver); if (cpuidle_register_device(device)) { printk(KERN_ERR "at91_init_cpuidle: Failed registering\n"); |