Re: [PATCH v2] Add ltc3562 voltage regulator driver

[Mike Looijmans <mike.looijmans@topic.nl>]

On 11/04/2014 12:34 PM, Mark Brown wrote:
> On Tue, Nov 04, 2014 at 09:55:14AM +0100, Mike Looijmans wrote:
>> On 11/03/2014 06:38 PM, Mike Looijmans wrote:
>
>>>> You need to develop against current versions of the kernel, this is
>>>> something that was merged into Linus' tree during the merge window.
>
>>> Is this an absolute show-stopper for you?
>
>>> With some effort I could move from our current 3.15 to 3.17, but even that
>>> wouldn't be recent enough then. I can justify spending a few days on getting
>>> the driver integrated into mainline, even if the initial version cost less
>>> than that; but moving everything to mainline is going to take weeks and the
>>> boss is definitely going to say "no" to that.
>
> It should be easy to backport the support into your current kernel, it's
> just a few commits and there hasn't been much development in this area
> of the code.  Can you take a look at doing that please?

That option hadn't crossed my mind yet, I'll look into it.

>
>> More important than that: Since this chip powers the IO banks, we need it
>> for our own products, and hence it has to work (also) on the current 3.15
>> kernel. Using APIs from 3.18 wouold render the driver useless to ourselves.
>
> This is just not at all important upstream, sorry.  The kernel moves on
> and internal APIs within the kernel move on so it is expected that code
> used in production won't be the latest and greatest upstream code.

I realize that, but then the result would be that I'll stop working on getting 
the driver into mainline and force customers to use a patch or use our fork of 
linux.




Met vriendelijke groet / kind regards,

Mike Looijmans
System Expert


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