On Thu, 16 Mar 2017, Andy Shevchenko wrote:

> There is a potential flaw if cell has id > 0 and is going to be
> registered with PLATFORM_DEVID_NONE.
> 
> Ignore if PLATFORM_DEVID_NONE is supplied.

This is a substantial change to a pretty tried and tested piece of
sub-system code.  Can you put some more meat on the bones in the
commit log, and include examples.

> Signed-off-by: Andy Shevchenko <andriy.shevche...@linux.intel.com>
> ---
>  drivers/mfd/mfd-core.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c
> index c57e407020f1..c9583f895058 100644
> --- a/drivers/mfd/mfd-core.c
> +++ b/drivers/mfd/mfd-core.c
> @@ -149,7 +149,7 @@ static int mfd_add_device(struct device *parent, int id,
>       int platform_id;
>       int r;
>  
> -     if (id == PLATFORM_DEVID_AUTO)
> +     if (id < 0)
>               platform_id = id;
>       else
>               platform_id = id + cell->id;

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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