[spi-devel-general] Re: [PATCH/RFC 1/2] simple SPI framework

[Russell K. <rmk...@ar...>]

On Wed, Oct 05, 2005 at 12:06:37PM +0400, Vitaly Wool wrote:
> David,
> 
> >+#ifdef	CONFIG_PM
> >+
> >+/* Suspend/resume in "struct device_driver" don't really need that
> >+ * strange third parameter, so we just make it a constant and expect
> >+ * SPI drivers to ignore it just like most platform drivers do.
> >+ *
> > 
> >
> So you just ignored my letter on that subject :(
> The fact that you don't need it doesn't mean that other people won't.
> The fact that there's no clean way to suspend USB doesn't mean that 
> there shouldn't be one for SPI.

The third parameter is obsolete and should only be used to select _one_
of the tree suspend calls you will get.

Any additional suspend calls should _not_ create extra usage of this
parameter.  It's a left over from Pat's first driver model incarnation
which is specific to the platform device drivers.  (Mainly it exists
because no one can be bothered to clean it up.)

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:  2.6 Serial core