Re: [PATCH] i2c: Allow i2c_add_numbered_adapter() to assign a bus id.

From: Grant Likely
Date: Tue Jul 05 2011 - 09:31:46 EST


On Tue, Jul 5, 2011 at 2:53 AM, Jean Delvare <khali@xxxxxxxxxxxx> wrote:
> Hi Grant,
>
> Sorry for the late answer.
>
> On Mon, 27 Jun 2011 13:02:45 -0600, Grant Likely wrote:
>> On Mon, Jun 27, 2011 at 12:55 PM, Grant Likely
>> <grant.likely@xxxxxxxxxxxx> wrote:
>> > Currently, if an i2c bus driver supports both static and dynamic bus
>> > ids, it needs to choose between calling i2c_add_numbered_adapter() and
>> > i2c_add_adapter().  This patch makes i2c_add_numbered_adapter()
>> > redirect to i2c_add_adapter() if the requested bus id is -1.
>> >
>> > Signed-off-by: Grant Likely <grant.likely@xxxxxxxxxxxx>
>>
>> Oops, forgot to edit the email before sending the patch.
>>
>> This patch is as-yet untested other than build testing, but I want to
>> get feedback.  With the move to DT on ARM, there are going to be a lot
>> more i2c bus drivers that need to support both static and dynamically
>> allocated busses, and it is very likely that it will be needed in the
>> v3.1 merge window.
>>
>> Ben/Jean, *IF* this patch tests out okay, and *IF* I get an ack from
>> you, it will probably need to have this commit in my devicetree/next
>> branch.  If so, then I'll either need to commit it myself, or have it
>> put into a separate topic branch that both of us can merge into our
>> trees.  What is your preference.
>>
>> John: this is the patch that I asked you to write earlier today, but I
>> think one of the TI folks will run into the same issue, so I wanted to
>> get it drafted and onto the list ASAP.
>
> If this makes your life easier then I have no objection, you can go
> ahead. I don't expect any conflict with my tree as there is no i2c-core
> work going on on my end at the moment. So you can just take it in your
> tree and merge it yourself as you see fit.
>
> Acked-by: Jean Delvare <khali@xxxxxxxxxxxx>

Thanks Jean, will do.

g.
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