[PATCH 1/7] i2c: gpio: Convert to use descriptors

[Ben Dooks]

On 02/10/17 02:05, Linus Walleij wrote:
> On Sun, Sep 17, 2017 at 11:39 AM, Linus Walleij
> <linus.walleij at linaro.org> wrote:
> 
>> - The MFD Silicon Motion SM501 is a special case. It dynamically
>>    spawns an I2C bus off the MFD using sm501_create_subdev().
>>    We use an approach to dynamically create a machine descriptor
>>    table and attach this to the "SM501-LOW" or "SM501-HIGH"
>>    gpiochip. We use chip-local offsets to grab the right lines.
>>    We can get rid of two local static inline helpers as part
>>    of this refactoring.
> (...)
>> SM501 users: requesting Tested-by on this patch.
> 
> Paging Simtec (if it reaches anyone), Vincent Sanders,
> Teddy Wang at Silicon Motion:

I'm fairly sure Simtec is not currently active. See below.
I have no idea if the SM501 is even available for current designs.

> Does any of you have an "Anubis" board so you can test GPIO
> on this board before/after this patch and see if it checks out right?
> 
> I guess it's this board:
> http://www.simtec.co.uk/products/BBD20EUROA/

I think that's fairly close.
We did have a couple of other designs done for clients, but they may
not have been available to the general public.

> 
> Does anyone know of a commercially obtainable product using
> SM501 with reasonable mainline Linux support so I can test it myself?
> 
> Getting a bit desperate...

At the moment I have no time to go through the boxes of ex-Simtec stuff
that I still have... quite a lot of my old Simtec stuff has already been
recycled as it has been over five years since leaving.

> Yours,
> Linus Walleij
> 


-- 
Ben Dooks				http://www.codethink.co.uk/
Senior Engineer				Codethink - Providing Genius