diff options
| author | Alexey Starikovskiy <astarikovskiy@suse.de> | 2008-03-21 15:07:21 +0100 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2008-03-25 01:50:36 +0100 |
| commit | 223883b7aafa02410ed2e571d6032c876d0b23b8 (patch) | |
| tree | 4b62b949b92a4321797389e97ec7944623621942 | |
| parent | ACPI: EC: Replace broken controller workarounds with poll mode. (diff) | |
| download | linux-223883b7aafa02410ed2e571d6032c876d0b23b8.tar.xz linux-223883b7aafa02410ed2e571d6032c876d0b23b8.zip | |
ACPI: EC: Switch off GPE mode during suspend/resume
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
| -rw-r--r-- | drivers/acpi/ec.c | 60 |
1 files changed, 38 insertions, 22 deletions
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 7f07b6806ac0..da67d228c9ea 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -83,28 +83,6 @@ enum { EC_FLAGS_RESCHEDULE_POLL /* Re-schedule poll */ }; -static int acpi_ec_remove(struct acpi_device *device, int type); -static int acpi_ec_start(struct acpi_device *device); -static int acpi_ec_stop(struct acpi_device *device, int type); -static int acpi_ec_add(struct acpi_device *device); - -static const struct acpi_device_id ec_device_ids[] = { - {"PNP0C09", 0}, - {"", 0}, -}; - -static struct acpi_driver acpi_ec_driver = { - .name = "ec", - .class = ACPI_EC_CLASS, - .ids = ec_device_ids, - .ops = { - .add = acpi_ec_add, - .remove = acpi_ec_remove, - .start = acpi_ec_start, - .stop = acpi_ec_stop, - }, -}; - /* If we find an EC via the ECDT, we need to keep a ptr to its context */ /* External interfaces use first EC only, so remember */ typedef int (*acpi_ec_query_func) (void *data); @@ -924,6 +902,11 @@ int __init acpi_boot_ec_enable(void) return -EFAULT; } +static const struct acpi_device_id ec_device_ids[] = { + {"PNP0C09", 0}, + {"", 0}, +}; + int __init acpi_ec_ecdt_probe(void) { int ret; @@ -973,6 +956,39 @@ int __init acpi_ec_ecdt_probe(void) return -ENODEV; } +static int acpi_ec_suspend(struct acpi_device *device, pm_message_t state) +{ + struct acpi_ec *ec = acpi_driver_data(device); + /* Stop using GPE */ + set_bit(EC_FLAGS_NO_GPE, &ec->flags); + clear_bit(EC_FLAGS_GPE_MODE, &ec->flags); + acpi_disable_gpe(NULL, ec->gpe, ACPI_NOT_ISR); + return 0; +} + +static int acpi_ec_resume(struct acpi_device *device) +{ + struct acpi_ec *ec = acpi_driver_data(device); + /* Enable use of GPE back */ + clear_bit(EC_FLAGS_NO_GPE, &ec->flags); + acpi_enable_gpe(NULL, ec->gpe, ACPI_NOT_ISR); + return 0; +} + +static struct acpi_driver acpi_ec_driver = { + .name = "ec", + .class = ACPI_EC_CLASS, + .ids = ec_device_ids, + .ops = { + .add = acpi_ec_add, + .remove = acpi_ec_remove, + .start = acpi_ec_start, + .stop = acpi_ec_stop, + .suspend = acpi_ec_suspend, + .resume = acpi_ec_resume, + }, +}; + static int __init acpi_ec_init(void) { int result = 0; |