diff options
| author | Shaohua Li <shaohua.li@intel.com> | 2007-07-20 10:03:20 +0800 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2007-07-22 04:18:20 -0400 |
| commit | fc30e68e88baf463683bde43347756889ba2ffae (patch) | |
| tree | 3da69f1c11c10e0ad3c3663989575a5a03ef61c1 | |
| parent | fd4aff1a28eecbd729b409bf7d3eff5948f20414 (diff) | |
ACPI, PNP: hook ACPI D-state to PNP suspend/resume
applied after Rafel's 'PM: Update global suspend and hibernation operations framework' patch set
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
| -rw-r--r-- | drivers/pnp/driver.c | 5 | ||||
| -rw-r--r-- | drivers/pnp/pnpacpi/core.c | 14 | ||||
| -rw-r--r-- | include/linux/pnp.h | 4 |
3 files changed, 23 insertions, 0 deletions
diff --git a/drivers/pnp/driver.c b/drivers/pnp/driver.c index e161423b430..1432806451c 100644 --- a/drivers/pnp/driver.c +++ b/drivers/pnp/driver.c @@ -167,6 +167,8 @@ static int pnp_bus_suspend(struct device *dev, pm_message_t state) return error; } + if (pnp_dev->protocol && pnp_dev->protocol->suspend) + pnp_dev->protocol->suspend(pnp_dev, state); return 0; } @@ -179,6 +181,9 @@ static int pnp_bus_resume(struct device *dev) if (!pnp_drv) return 0; + if (pnp_dev->protocol && pnp_dev->protocol->resume) + pnp_dev->protocol->resume(pnp_dev); + if (!(pnp_drv->flags & PNP_DRIVER_RES_DO_NOT_CHANGE)) { error = pnp_start_dev(pnp_dev); if (error) diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c index a00548799e9..c37a558ecd9 100644 --- a/drivers/pnp/pnpacpi/core.c +++ b/drivers/pnp/pnpacpi/core.c @@ -119,11 +119,25 @@ static int pnpacpi_disable_resources(struct pnp_dev *dev) return ACPI_FAILURE(status) ? -ENODEV : 0; } +static int pnpacpi_suspend(struct pnp_dev *dev, pm_message_t state) +{ + return acpi_bus_set_power((acpi_handle)dev->data, + acpi_pm_device_sleep_state(&dev->dev, + device_may_wakeup(&dev->dev), NULL)); +} + +static int pnpacpi_resume(struct pnp_dev *dev) +{ + return acpi_bus_set_power((acpi_handle)dev->data, ACPI_STATE_D0); +} + static struct pnp_protocol pnpacpi_protocol = { .name = "Plug and Play ACPI", .get = pnpacpi_get_resources, .set = pnpacpi_set_resources, .disable = pnpacpi_disable_resources, + .suspend = pnpacpi_suspend, + .resume = pnpacpi_resume, }; static int __init pnpacpi_add_device(struct acpi_device *device) diff --git a/include/linux/pnp.h b/include/linux/pnp.h index 2a1897e6f93..66edb229318 100644 --- a/include/linux/pnp.h +++ b/include/linux/pnp.h @@ -335,6 +335,10 @@ struct pnp_protocol { int (*set)(struct pnp_dev *dev, struct pnp_resource_table *res); int (*disable)(struct pnp_dev *dev); + /* protocol specific suspend/resume */ + int (*suspend)(struct pnp_dev *dev, pm_message_t state); + int (*resume)(struct pnp_dev *dev); + /* used by pnp layer only (look but don't touch) */ unsigned char number; /* protocol number*/ struct device dev; /* link to driver model */ |