acpi_gpe_sleep_prepare() does not have counterpart at resume time, so changes to GPEs are final. In case someone use S4 and then try S3, he will miss some wakeup devices. So, acpi_gpe_sleep_prepare() is removed, and acpi_enable_wakeup_device() gets its functionality. acpi_disable_wakeup_device() rolls back the changes. Reference: https://bugzilla.novell.com/show_bug.cgi?id=292300 Signed-off-by: Alexey Starikovskiy <astarikovskiy@xxxxxxx> --- drivers/acpi/sleep/main.c | 1 drivers/acpi/sleep/sleep.h | 1 drivers/acpi/sleep/wakeup.c | 117 +++++++++++++++---------------------------- include/acpi/acpi_bus.h | 1 4 files changed, 40 insertions(+), 80 deletions(-) diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c index 2cbb9aa..9426ac1 100644 --- a/drivers/acpi/sleep/main.c +++ b/drivers/acpi/sleep/main.c @@ -44,7 +44,6 @@ int acpi_sleep_prepare(u32 acpi_state) ACPI_FLUSH_CPU_CACHE(); acpi_enable_wakeup_device_prep(acpi_state); #endif - acpi_gpe_sleep_prepare(acpi_state); acpi_enter_sleep_state_prep(acpi_state); return 0; } diff --git a/drivers/acpi/sleep/sleep.h b/drivers/acpi/sleep/sleep.h index ff1f850..a2ea125 100644 --- a/drivers/acpi/sleep/sleep.h +++ b/drivers/acpi/sleep/sleep.h @@ -5,6 +5,5 @@ extern int acpi_suspend (u32 state); extern void acpi_enable_wakeup_device_prep(u8 sleep_state); extern void acpi_enable_wakeup_device(u8 sleep_state); extern void acpi_disable_wakeup_device(u8 sleep_state); -extern void acpi_gpe_sleep_prepare(u32 sleep_state); extern int acpi_sleep_prepare(u32 acpi_state); diff --git a/drivers/acpi/sleep/wakeup.c b/drivers/acpi/sleep/wakeup.c index 97c27dd..ed8e41b 100644 --- a/drivers/acpi/sleep/wakeup.c +++ b/drivers/acpi/sleep/wakeup.c @@ -64,36 +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); @@ -112,26 +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); @@ -142,7 +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); @@ -160,48 +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); - -/* - * Disable all wakeup GPEs before entering requested sleep state. - * @sleep_state: ACPI state - * Since acpi_enter_sleep_state() will disable all - * RUNTIME GPEs, we simply mark all GPES that - * are not enabled for wakeup from requested state 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); - } -} diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index 8a388e7..7b74b60 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -264,7 +264,6 @@ struct acpi_device_wakeup_flags { struct acpi_device_wakeup_state { u8 enabled:1; - u8 active:1; }; struct acpi_device_wakeup { - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
