i2c-gpio and boards conversions to GPIO descriptors

i2c-gpio and boards conversions to GPIO descriptors

[Simon Guinot]

On Fri, May 25, 2018 at 05:41:44PM +0200, Simon Guinot wrote:
> Hi Linus,

Forwarding to some mailing lists I missed in a first place.

> 
> I think your patch b2e63555592f "i2c: gpio: Convert to use descriptors"
> may have broken i2c-gpio support for some boards using old fashion
> platform_device declarations.
> 
> Indeed when an "i2c-gpio" platform_device is registered with a fixed id
> e.g. 0, then I think the device name becomes "i2c-gpio.0". And then this
> won't match a lookup table registered with an "i2c-gpio" dev_id.
> 
> Please double check this :)
> 
> Simon
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i2c-gpio and boards conversions to GPIO descriptors

[Linus Walleij]

On Fri, May 25, 2018 at 5:41 PM, Simon Guinot <simon.guinot@sequanux.org> wrote:
> Hi Linus,
>
> I think your patch b2e63555592f "i2c: gpio: Convert to use descriptors"
> may have broken i2c-gpio support for some boards using old fashion
> platform_device declarations.
>
> Indeed when an "i2c-gpio" platform_device is registered with a fixed id
> e.g. 0, then I think the device name becomes "i2c-gpio.0". And then this
> won't match a lookup table registered with an "i2c-gpio" dev_id.

Yeah what a mess, I'm sending patches to fix it up, the ARM
patch already sent, I will send a separate one for the MIPS
machines.

Sorry for the mess! :(

Yours,
Linus Walleij