X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Facpi%2Fsleep%2Fwakeup.c;h=ed8e41becf0c4997177697157ac8ee8a368d9ab1;hb=62429f434091586d54b37b8dd46076e7c08b27b9;hp=af1dbabaf0b1d299277fe65727eed95778751c1d;hpb=ae6c859b7dcd708efadf1c76279c33db213e3506;p=linux-2.6 diff --git a/drivers/acpi/sleep/wakeup.c b/drivers/acpi/sleep/wakeup.c index af1dbabaf0..ed8e41becf 100644 --- a/drivers/acpi/sleep/wakeup.c +++ b/drivers/acpi/sleep/wakeup.c @@ -17,7 +17,6 @@ ACPI_MODULE_NAME("wakeup_devices") extern struct list_head acpi_wakeup_device_list; extern spinlock_t acpi_device_lock; -#ifdef CONFIG_ACPI_SLEEP /** * acpi_enable_wakeup_device_prep - prepare wakeup devices * @sleep_state: ACPI state @@ -65,36 +64,29 @@ void acpi_enable_wakeup_device(u8 sleep_state) ACPI_FUNCTION_TRACE("acpi_enable_wakeup_device"); spin_lock(&acpi_device_lock); list_for_each_safe(node, next, &acpi_wakeup_device_list) { - struct acpi_device *dev = container_of(node, - struct acpi_device, - wakeup_list); - + struct acpi_device *dev = + container_of(node, struct acpi_device, wakeup_list); + if (!dev->wakeup.flags.valid) + continue; /* If users want to disable run-wake GPE, * we only disable it for wake and leave it for runtime */ - if (dev->wakeup.flags.run_wake && !dev->wakeup.state.enabled) { - spin_unlock(&acpi_device_lock); - acpi_set_gpe_type(dev->wakeup.gpe_device, - dev->wakeup.gpe_number, - ACPI_GPE_TYPE_RUNTIME); - /* Re-enable it, since set_gpe_type will disable it */ - acpi_enable_gpe(dev->wakeup.gpe_device, - dev->wakeup.gpe_number, ACPI_ISR); - spin_lock(&acpi_device_lock); + if (!dev->wakeup.state.enabled || + sleep_state > (u32) dev->wakeup.sleep_state) { + if (dev->wakeup.flags.run_wake) { + spin_unlock(&acpi_device_lock); + /* set_gpe_type will disable GPE, leave it like that */ + acpi_set_gpe_type(dev->wakeup.gpe_device, + dev->wakeup.gpe_number, + ACPI_GPE_TYPE_RUNTIME); + spin_lock(&acpi_device_lock); + } continue; } - - if (!dev->wakeup.flags.valid || - !dev->wakeup.state.enabled || - (sleep_state > (u32) dev->wakeup.sleep_state)) - continue; - spin_unlock(&acpi_device_lock); - /* run-wake GPE has been enabled */ if (!dev->wakeup.flags.run_wake) acpi_enable_gpe(dev->wakeup.gpe_device, dev->wakeup.gpe_number, ACPI_ISR); - dev->wakeup.state.active = 1; spin_lock(&acpi_device_lock); } spin_unlock(&acpi_device_lock); @@ -113,26 +105,25 @@ void acpi_disable_wakeup_device(u8 sleep_state) spin_lock(&acpi_device_lock); list_for_each_safe(node, next, &acpi_wakeup_device_list) { - struct acpi_device *dev = container_of(node, - struct acpi_device, - wakeup_list); + struct acpi_device *dev = + container_of(node, struct acpi_device, wakeup_list); - if (dev->wakeup.flags.run_wake && !dev->wakeup.state.enabled) { - spin_unlock(&acpi_device_lock); - acpi_set_gpe_type(dev->wakeup.gpe_device, - dev->wakeup.gpe_number, - ACPI_GPE_TYPE_WAKE_RUN); - /* Re-enable it, since set_gpe_type will disable it */ - acpi_enable_gpe(dev->wakeup.gpe_device, - dev->wakeup.gpe_number, ACPI_NOT_ISR); - spin_lock(&acpi_device_lock); + if (!dev->wakeup.flags.valid) continue; - } - - if (!dev->wakeup.flags.valid || - !dev->wakeup.state.active || - (sleep_state > (u32) dev->wakeup.sleep_state)) + if (!dev->wakeup.state.enabled || + sleep_state > (u32) dev->wakeup.sleep_state) { + if (dev->wakeup.flags.run_wake) { + spin_unlock(&acpi_device_lock); + acpi_set_gpe_type(dev->wakeup.gpe_device, + dev->wakeup.gpe_number, + ACPI_GPE_TYPE_WAKE_RUN); + /* Re-enable it, since set_gpe_type will disable it */ + acpi_enable_gpe(dev->wakeup.gpe_device, + dev->wakeup.gpe_number, ACPI_NOT_ISR); + spin_lock(&acpi_device_lock); + } continue; + } spin_unlock(&acpi_device_lock); acpi_disable_wakeup_device_power(dev); @@ -143,7 +134,6 @@ void acpi_disable_wakeup_device(u8 sleep_state) acpi_clear_gpe(dev->wakeup.gpe_device, dev->wakeup.gpe_number, ACPI_NOT_ISR); } - dev->wakeup.state.active = 0; spin_lock(&acpi_device_lock); } spin_unlock(&acpi_device_lock); @@ -161,49 +151,20 @@ static int __init acpi_wakeup_device_init(void) struct acpi_device *dev = container_of(node, struct acpi_device, wakeup_list); - /* In case user doesn't load button driver */ - if (dev->wakeup.flags.run_wake && !dev->wakeup.state.enabled) { - spin_unlock(&acpi_device_lock); - acpi_set_gpe_type(dev->wakeup.gpe_device, - dev->wakeup.gpe_number, - ACPI_GPE_TYPE_WAKE_RUN); - acpi_enable_gpe(dev->wakeup.gpe_device, - dev->wakeup.gpe_number, ACPI_NOT_ISR); - dev->wakeup.state.enabled = 1; - spin_lock(&acpi_device_lock); - } + if (!dev->wakeup.flags.run_wake || dev->wakeup.state.enabled) + continue; + spin_unlock(&acpi_device_lock); + acpi_set_gpe_type(dev->wakeup.gpe_device, + dev->wakeup.gpe_number, + ACPI_GPE_TYPE_WAKE_RUN); + acpi_enable_gpe(dev->wakeup.gpe_device, + dev->wakeup.gpe_number, ACPI_NOT_ISR); + dev->wakeup.state.enabled = 1; + spin_lock(&acpi_device_lock); } spin_unlock(&acpi_device_lock); - return 0; } late_initcall(acpi_wakeup_device_init); -#endif - -/* - * Disable all wakeup GPEs before power off. - * - * Since acpi_enter_sleep_state() will disable all - * RUNTIME GPEs, we simply mark all GPES that - * are not enabled for wakeup from S5 as RUNTIME. - */ -void acpi_gpe_sleep_prepare(u32 sleep_state) -{ - struct list_head *node, *next; - - list_for_each_safe(node, next, &acpi_wakeup_device_list) { - struct acpi_device *dev = container_of(node, - struct acpi_device, - wakeup_list); - - /* The GPE can wakeup system from this state, don't touch it */ - if ((u32) dev->wakeup.sleep_state >= sleep_state) - continue; - /* acpi_set_gpe_type will automatically disable GPE */ - acpi_set_gpe_type(dev->wakeup.gpe_device, - dev->wakeup.gpe_number, - ACPI_GPE_TYPE_RUNTIME); - } -}