Re: [PATCH 1/2] ACPI: reintroduce acpi_device_ops .shutdown method

From: Andrew Morton
Date: Tue Jun 30 2009 - 17:12:17 EST


On Sat, 27 Jun 2009 07:18:31 +0200
David H__rdeman <david@xxxxxxxxxxx> wrote:

> This reintroduces the .shutdown method which is used by the
> winbond-cir driver. A normal revert wasn't possible since there
> had been other changes to include/acpi/acpi_bus.h since.
>
> Signed-off-by: David H__rdeman <david@xxxxxxxxxxx>
> ---
> drivers/acpi/scan.c | 12 ++++++++++++
> include/acpi/acpi_bus.h | 2 ++
> 2 files changed, 14 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
> index 781435d..c94ab13 100644
> --- a/drivers/acpi/scan.c
> +++ b/drivers/acpi/scan.c
> @@ -464,10 +464,22 @@ static int acpi_device_remove(struct device * dev)
> return 0;
> }
>
> +static void acpi_device_shutdown(struct device *dev)
> +{
> + struct acpi_device *acpi_dev = to_acpi_device(dev);
> + struct acpi_driver *acpi_drv = acpi_dev->driver;
> +
> + if (acpi_drv && acpi_drv->ops.shutdown)
> + acpi_drv->ops.shutdown(acpi_dev);
> +
> + return ;
> +}
> +
> struct bus_type acpi_bus_type = {
> .name = "acpi",
> .suspend = acpi_device_suspend,
> .resume = acpi_device_resume,
> + .shutdown = acpi_device_shutdown,
> .match = acpi_bus_match,
> .probe = acpi_device_probe,
> .remove = acpi_device_remove,
> diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
> index c65e4ce..52da89a 100644
> --- a/include/acpi/acpi_bus.h
> +++ b/include/acpi/acpi_bus.h
> @@ -96,6 +96,7 @@ typedef int (*acpi_op_resume) (struct acpi_device * device);
> typedef int (*acpi_op_bind) (struct acpi_device * device);
> typedef int (*acpi_op_unbind) (struct acpi_device * device);
> typedef void (*acpi_op_notify) (struct acpi_device * device, u32 event);
> +typedef int (*acpi_op_shutdown) (struct acpi_device * device);
>
> struct acpi_bus_ops {
> u32 acpi_op_add:1;
> @@ -112,6 +113,7 @@ struct acpi_device_ops {
> acpi_op_bind bind;
> acpi_op_unbind unbind;
> acpi_op_notify notify;
> + acpi_op_shutdown shutdown;
> };
>
> #define ACPI_DRIVER_ALL_NOTIFY_EVENTS 0x1 /* system AND device events */

Len, Bjorn: is this OK? Or is there some other mechanism which the
driver should have used?

Thanks.
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