linux-kernel - Re: [patch 3/4] MFD: Remove unnecessary fields if mfd

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Message-ID: <bc64b4640807090416k7ab2f24aj1eae0cfd6c79b106@mail.gmail.com>
Date:	Wed, 9 Jul 2008 15:16:47 +0400
From:	Dmitry <dbaryshkov@...il.com>
To:	"Ben Dooks" <ben-linux@...ff.org>
Cc:	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.arm.linux.org.uk, sameo@...nedhand.com
Subject: Re: [patch 3/4] MFD: Remove unnecessary fields if mfd_cell structure.

2008/7/9 Ben Dooks <ben-linux@...ff.org>:
> On Wed, Jul 09, 2008 at 03:09:12PM +0400, Dmitry wrote:
>> 2008/7/9 Ben Dooks <ben-linux@...ff.org>:
>> > The enable,disable,suspend and resume entry in the struct mfd_cell
>> > do not seem to be necessary as they should be handled by the
>> > platform driver that the device created has bound to.
>>
>> NAK. It's used e.g. by the tmio-nand driver. These fields provide easy
>> way to support
>> enhanced power management, etc.
>
> What enhancements over the standard platform device model do you need?

As an example of what  we need, please check the tmio-nand driver.

>
>> >
>> > Signed-off-by: Ben Dooks <ben-linux@...ff.org>
>> >
>> > Index: linux-2.6.26-rc9-next20080709/include/linux/mfd/core.h
>> > ===================================================================
>> > --- linux-2.6.26-rc9-next20080709.orig/include/linux/mfd/core.h 2008-07-09 10:44:45.000000000 +0100
>> > +++ linux-2.6.26-rc9-next20080709/include/linux/mfd/core.h      2008-07-09 10:45:06.000000000 +0100
>> > @@ -23,12 +26,6 @@
>> >  */
>> >  struct mfd_cell {
>> >        const char              *name;
>> > -
>> > -       int                     (*enable)(struct platform_device *dev);
>> > -       int                     (*disable)(struct platform_device *dev);
>> > -       int                     (*suspend)(struct platform_device *dev);
>> > -       int                     (*resume)(struct platform_device *dev);
>> > -
>> >        void                    *driver_data; /* driver-specific data */
>> >
>> >        /*
>> >
>> > --
>> >
>>
>>
>>
>> --
>> With best wishes
>> Dmitry
>
> --
> --
> Ben
>
> Q:      What's a light-year?
> A:      One-third less calories than a regular year.
>
>



-- 
With best wishes
Dmitry
--
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