Re: [PATCH 0/3 RFC] MMC SPI support for OpenFirmware platforms

2008-11-08 Thread Pierre Ossman 
On Thu, 30 Oct 2008 22:55:46 +0300
Anton Vorontsov [EMAIL PROTECTED] wrote:

 
 Pierre, the approach is somewhat similar to this one:
 http://lkml.org/lkml/2008/5/26/135
 Posted few months ago.
 
 I know you don't like it, but I ask you to reconsider it. The
 I2C and SPI cases are similar, and recently we tried to write
 bindings for some I2C GPIO controllers.
 

This new version is a bit better in that you've generalised thing more.
I'd still prefer if we can have an interface where the driver doesn't
have to know that it is on an ACPI/OF/EFI/whatnot host, but I can live
with this model for now.

Rgds
-- 
 -- Pierre Ossman

  Linux kernel, MMC maintainerhttp://www.kernel.org
  rdesktop, core developer  http://www.rdesktop.org

  WARNING: This correspondence is being monitored by the
  Swedish government. Make sure your server uses encryption
  for SMTP traffic and consider using PGP for end-to-end
  encryption.
___
Linuxppc-dev mailing list
Linuxppc-dev@ozlabs.org
https://ozlabs.org/mailman/listinfo/linuxppc-dev

[PATCH 0/3 RFC] MMC SPI support for OpenFirmware platforms

2008-10-30 Thread Anton Vorontsov 
Hi all,

Here are the bindings, again. Still RFC.

This patch series depends on:
http://lkml.org/lkml/2008/10/16/250
http://lkml.org/lkml/2008/10/24/416 
+ of_gpio_flags enum (Trent Piepho will post an updated patch soon,
I believe).

Pierre, the approach is somewhat similar to this one:
http://lkml.org/lkml/2008/5/26/135
Posted few months ago.

I know you don't like it, but I ask you to reconsider it. The
I2C and SPI cases are similar, and recently we tried to write
bindings for some I2C GPIO controllers.

There we've learned that we:

1. Don't like the bus notifiers approach b/c we can't place the OF
   code into the module.
   http://lkml.org/lkml/2008/10/21/425
   Hacks are possible, but they're are ugly.
2. Don't want to write new drivers to solely handle the platform
   data:
   http://lkml.org/lkml/2008/10/28/257
   http://lkml.org/lkml/2008/10/28/268

And personally I don't want to do refactoring for every driver that
we'd want to use with the OpenFirmware...

If I understood correctly, for GPIO controllers David agreed that
we can live with the platform data accessors, at least for now:
http://lkml.org/lkml/2008/10/23/24

And when/if we'll find something better I'll be the first who
will offer help to convert the bindings code to this something
better.

Thanks,

-- 
Anton Vorontsov
email: [EMAIL PROTECTED]
irc://irc.freenode.net/bd2
___
Linuxppc-dev mailing list
Linuxppc-dev@ozlabs.org
https://ozlabs.org/mailman/listinfo/linuxppc-dev