[PATCH v3 0/5] i2c: i2c-mpc: make I2C bus speed configurable

Grant Likely grant.likely at secretlab.ca
Wed Apr 8 15:32:28 EST 2009


On Tue, Apr 7, 2009 at 10:22 PM, Kumar Gala <galak at kernel.crashing.org> wrote:
>
> On Apr 8, 2009, at 12:16 AM, Grant Likely wrote:
>
>> On Tue, Apr 7, 2009 at 10:11 PM, Kumar Gala <galak at kernel.crashing.org>
>> wrote:
>>>
>>> On Apr 7, 2009, at 3:20 AM, Wolfgang Grandegger wrote:
>>>
>>>> This patch series makes the I2C bus speed configurable by using the
>>>> I2C node property "clock-frequency". If the property is not defined,
>>>> the old fixed clock settings will be used for backward compatibility.
>>>> The property "fsl,preserve-clocking" allows to inherit the settings
>>>> from the bootloader. Furthermore, it does some cleanup and uses the
>>>> new bindings for the Socrates board:
>>>>
>>>>  i2c: i2c-mpc: various coding style fixes
>>>>  i2c: i2c-mpc: use dev based printout function
>>>>  i2c: i2c-mpc: make I2C bus speed configurable
>>>
>>> It looks like Ben picked up these patches.
>>>
>>>>  powerpc: i2c-mpc: document new FSL I2C bindings and cleanup
>>>>  powerpc/85xx: i2c-mpc: use new I2C bindings for the Socates board
>>>
>>> I would have preferred these two go via me, but it looks like the board
>>> one
>>> got picked up by Ben.  I'll deal with the doc/binding update.
>>
>> hrummm.  As I mentioned in my reply, I'm not convinced that the board
>> one is the right thing in this case.  I would have preferred it to be
>> deferred.
>
> which part?  I missed this whole thread as I had it forwarding to my
> devicetree-discuss folder which I don't normally look at.

Here you go:

On Tue, Apr 7, 2009 at 8:43 AM, Grant Likely <grant.likely at secretlab.ca> wrote:
> On Tue, Apr 7, 2009 at 1:20 AM, Wolfgang Grandegger <wg at grandegger.com> wrote:
>> Preserve I2C clock settings for the Socrates MPC8544 board.
>
> I had thought that the preserve-clocking property was intended for
> older boards that don't currently have any method of getting the clock
> setting out of u-boot.  Since Socrates is a new board, U-Boot should
> probably be made to fill in the real clock rate setting.
>
> g.

-- 
Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.



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