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Re: [PATCH 2/3] ACPI: scan add call to probe amba devices

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  Re: [PATCH 2/3] ACPI: scan add call to probe amba devices "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2015-12-01 02:50 +0100
    Re: [PATCH 2/3] ACPI: scan add call to probe amba devices Graeme Gregory <gg@slimlogic.co.uk> - 2015-12-01 13:20 +0100

#1280478 — Re: [PATCH 2/3] ACPI: scan add call to probe amba devices

On Wednesday, September 30, 2015 11:38:49 AM Graeme Gregory wrote:
> Call the amba device creation function in the default enumeration path,
> this is the same location platform devices are probed.

First, I'm sorry for the glacially slow response here.

> Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
> Cc: Len Brown <lenb@kernel.org>
> Cc: Russell King <linux@arm.linux.org.uk>
> Signed-off-by: Graeme Gregory <graeme.gregory@linaro.org>
> ---
>  drivers/acpi/scan.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
> index f834b8c..aa3184e 100644
> --- a/drivers/acpi/scan.c
> +++ b/drivers/acpi/scan.c
> @@ -1633,8 +1633,10 @@ static void acpi_default_enumeration(struct acpi_device *device)
>  	acpi_dev_get_resources(device, &resource_list, acpi_check_spi_i2c_slave,
>  			       &is_spi_i2c_slave);
>  	acpi_dev_free_resource_list(&resource_list);
> -	if (!is_spi_i2c_slave)
> +	if (!is_spi_i2c_slave) {
> +		acpi_create_amba_device(device);

Do you really have to add this here?

It would be much cleaner to use a new scan handler instead.

>  		acpi_create_platform_device(device);
> +	}
>  }
>  
>  static const struct acpi_device_id generic_device_ids[] = {
> 

Thanks,
Rafael

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#1280814

On Tue, Dec 01, 2015 at 03:16:53AM +0100, Rafael J. Wysocki wrote:
> On Wednesday, September 30, 2015 11:38:49 AM Graeme Gregory wrote:
> > Call the amba device creation function in the default enumeration path,
> > this is the same location platform devices are probed.
> 
> First, I'm sorry for the glacially slow response here.
> 
> > Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
> > Cc: Len Brown <lenb@kernel.org>
> > Cc: Russell King <linux@arm.linux.org.uk>
> > Signed-off-by: Graeme Gregory <graeme.gregory@linaro.org>
> > ---
> >  drivers/acpi/scan.c | 4 +++-
> >  1 file changed, 3 insertions(+), 1 deletion(-)
> > 
> > diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
> > index f834b8c..aa3184e 100644
> > --- a/drivers/acpi/scan.c
> > +++ b/drivers/acpi/scan.c
> > @@ -1633,8 +1633,10 @@ static void acpi_default_enumeration(struct acpi_device *device)
> >  	acpi_dev_get_resources(device, &resource_list, acpi_check_spi_i2c_slave,
> >  			       &is_spi_i2c_slave);
> >  	acpi_dev_free_resource_list(&resource_list);
> > -	if (!is_spi_i2c_slave)
> > +	if (!is_spi_i2c_slave) {
> > +		acpi_create_amba_device(device);
> 
> Do you really have to add this here?
> 
> It would be much cleaner to use a new scan handler instead.
> 

I can certainly look into doing that, I cannot from a quick scan see any
reason not too. I just didn't think of it.

Graeme

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