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author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-19 20:12:46 (GMT) |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-19 20:12:46 (GMT) |
commit | c4ec20717313daafba59225f812db89595952b83 (patch) | |
tree | 253337453b1dc965c40668e4949337ed1c46cab7 /drivers/acpi/sleep | |
parent | ec2626815bf9a9922e49820b03e670e833f3ca3c (diff) | |
parent | 00a2b433557f10736e8a02de619b3e9052556c12 (diff) | |
download | linux-fsl-qoriq-c4ec20717313daafba59225f812db89595952b83.tar.xz |
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (41 commits)
ACPICA: hw: Don't carry spinlock over suspend
ACPICA: hw: remove use_lock flag from acpi_hw_register_{read, write}
ACPI: cpuidle: port idle timer suspend/resume workaround to cpuidle
ACPI: clean up acpi_enter_sleep_state_prep
Hibernation: Make sure that ACPI is enabled in acpi_hibernation_finish
ACPI: suppress uninitialized var warning
cpuidle: consolidate 2.6.22 cpuidle branch into one patch
ACPI: thinkpad-acpi: skip blanks before the data when parsing sysfs
ACPI: AC: Add sysfs interface
ACPI: SBS: Add sysfs alarm
ACPI: SBS: Add ACPI_PROCFS around procfs handling code.
ACPI: SBS: Add support for power_supply class (and sysfs)
ACPI: SBS: Make SBS reads table-driven.
ACPI: SBS: Simplify data structures in SBS
ACPI: SBS: Split host controller (ACPI0001) from SBS driver (ACPI0002)
ACPI: EC: Add new query handler to list head.
ACPI: Add acpi_bus_generate_event4() function
ACPI: Battery: add sysfs alarm
ACPI: Battery: Add sysfs support
ACPI: Battery: Misc clean-ups, no functional changes
...
Fix up conflicts in drivers/misc/thinkpad_acpi.[ch] manually
Diffstat (limited to 'drivers/acpi/sleep')
-rw-r--r-- | drivers/acpi/sleep/main.c | 6 | ||||
-rw-r--r-- | drivers/acpi/sleep/sleep.h | 1 | ||||
-rw-r--r-- | drivers/acpi/sleep/wakeup.c | 117 |
3 files changed, 45 insertions, 79 deletions
diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c index 048295e..f3d3867 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; } @@ -268,6 +267,11 @@ static void acpi_hibernation_leave(void) static void acpi_hibernation_finish(void) { + /* + * If ACPI is not enabled by the BIOS and the boot kernel, we need to + * enable it here. + */ + acpi_enable(); acpi_leave_sleep_state(ACPI_STATE_S4); acpi_disable_wakeup_device(ACPI_STATE_S4); 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); - } -} |