Hook acpi power management routines into PNP suspend/resume. This
version considered wakeup device
Index: 2.6.22-rc2/include/linux/pnp.h
===================================================================
--- 2.6.22-rc2.orig/include/linux/pnp.h 2007-06-18 16:11:16.000000000 +0800
+++ 2.6.22-rc2/include/linux/pnp.h 2007-06-19 09:24:59.000000000 +0800
@@ -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 */
Index: 2.6.22-rc2/drivers/pnp/driver.c
===================================================================
--- 2.6.22-rc2.orig/drivers/pnp/driver.c 2007-06-18 16:11:16.000000000
+0800
+++ 2.6.22-rc2/drivers/pnp/driver.c 2007-06-19 09:24:59.000000000 +0800
@@ -167,6 +167,8 @@ static int pnp_bus_suspend(struct device
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
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)
Index: 2.6.22-rc2/drivers/pnp/pnpacpi/core.c
===================================================================
--- 2.6.22-rc2.orig/drivers/pnp/pnpacpi/core.c 2007-06-18 16:11:16.000000000
+0800
+++ 2.6.22-rc2/drivers/pnp/pnpacpi/core.c 2007-06-19 09:27:51.000000000
+0800
@@ -119,11 +119,24 @@ static int pnpacpi_disable_resources(str
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_choose_sleep_state((acpi_handle)dev->data, state));
+}
+
+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)
-
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