diff options
Diffstat (limited to 'arch/arm/mach-at91/cpuidle.c')
| -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 f474272c0ea..a851e6c9842 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");  |