Re: [PATCH v4 4/4] iio: adc: mcp3911: add support for the whole MCP39xx family

From: Marcus Folkesson
Date: Thu Aug 10 2023 - 10:29:25 EST


On Thu, Aug 10, 2023 at 04:44:20PM +0300, Andy Shevchenko wrote:
> On Wed, Aug 09, 2023 at 08:14:54PM +0200, Krzysztof Kozlowski wrote:
> > On 09/08/2023 20:02, Jonathan Cameron wrote:
> > > On Wed, 9 Aug 2023 08:41:05 +0200
> > > Marcus Folkesson <marcus.folkesson@xxxxxxxxx> wrote:
>
> ...
>
> > >>> Inconsistent macro implementation, i.e. you need to use (x).
> > >>
> > >> Sorry, I do not get you
>
> In other macros you avoid ambiguity of the parameter, so they can be evaluated
> properly, and not here.


Hrmf, I missed that I had asked about this before I sent out v5. Such a shame.

I got you now, thanks.

I agree that maybe it should be 'ch' instead.
Already existing macros for channel and offcal use 'x' though, so in
that case should be changed as well.

#define MCP3911_CHANNEL(x) (MCP3911_REG_CHANNEL0 + x * 3)
#define MCP3911_OFFCAL(x) (MCP3911_REG_OFFCAL_CH0 + x * 6)

[...]

>
> See (1) above ?
>
> --
> With Best Regards,
> Andy Shevchenko
>
>

Best regards,
Marcus Folkesson

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