Re: [Update][PATCH 0/3] ACPI: Simplify "glueing" to physical nodes

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On Tue, Nov 20, 2012 at 01:55:46AM +0100, Rafael J. Wysocki wrote:
> On Sunday, November 18, 2012 10:10:33 PM Rafael J. Wysocki wrote:
> > On Sunday, November 18, 2012 05:55:39 PM Mika Westerberg wrote:
> > > On Sat, Nov 17, 2012 at 12:24:45PM +0100, Rafael J. Wysocki wrote:
> > > > Well, maybe there is one.  Perhaps we can make acpi_platform_notify() 
> > > > call acpi_bind_one() upfront and only if that fails, do the whole
> > > > type->find_device() dance?  Of course, acpi_bind_one() would need to
> > > > be modified slightly too, like in the patch below.
> > > > 
> > > > If we did that, acpi_i2c_add_device() would only need to assign acpi_handle
> > > > as appropriate before calling i2c_new_device() (and analogously for SPI).
> > > > 
> > > > What do you think? 
> > > 
> > > This is certainly better than the thing we use currently. It makes adding
> > > I2C and SPI support much shorter and simpler. If others don't object I
> > > would suggest that we switch to use this method.
> > 
> > OK, thanks.
> > 
> > The first of the following two patches is a slightly modified version of the
> > one that you commented.  Patch [2/2] implements the idea for platform devices
> > and since it modifies struct platform_device_info, I'm adding a CC to Greg.
> > 
> > The patches are on top of current linux-pm.git/linux-next.
> > 
> > It looks like we may be able to use this approach for PCI too, in which case
> > the whole .find_device() stuff won't be necessary any more.
> 
> Following is the series with the Greg's feedback taken into account.
> Patch [1/3] is the same as before with the bug found by Mika fixed, [2/3] is
> an additional patch adding struct acpi_dev_node to compile out unused stuff if
> CONFIG_ACPI is not set and [3/3] is the previous [2/2] rebased on top of it.

Looks great, thanks for the changes.  I'm assuming this will go through
your tree, right?

greg k-h
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