linux-kernel - Re: [PATCH] iio: adc: stm32-dfsdm: Add support for stm32mp1

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Date:   Sat, 12 May 2018 10:33:24 +0100
From:   Jonathan Cameron <jic23@...nel.org>
To:     Rob Herring <robh@...nel.org>
Cc:     Fabrice Gasnier <fabrice.gasnier@...com>, alexandre.torgue@...com,
        mark.rutland@....com, mcoquelin.stm32@...il.com, lars@...afoo.de,
        knaack.h@....de, pmeerw@...erw.net, linux-iio@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, benjamin.gaignard@...aro.org,
        arnaud.pouliquen@...com
Subject: Re: [PATCH] iio: adc: stm32-dfsdm: Add support for stm32mp1

On Mon, 7 May 2018 15:51:51 -0500
Rob Herring <robh@...nel.org> wrote:

> On Wed, May 02, 2018 at 03:05:23PM +0200, Fabrice Gasnier wrote:
> > Add support for DFSDM (Digital Filter For Sigma Delta Modulators)
> > to STM32MP1. This variant is close to STM32H7 DFSDM, it implements
> > 6 filter instances. Registers map is also increased.
> > 
> > Signed-off-by: Fabrice Gasnier <fabrice.gasnier@...com>
> > ---
> >  .../bindings/iio/adc/st,stm32-dfsdm-adc.txt         |  7 +++++--
> >  drivers/iio/adc/stm32-dfsdm-core.c                  | 21 +++++++++++++++++++++
> >  2 files changed, 26 insertions(+), 2 deletions(-)  
> 
> Reviewed-by: Rob Herring <robh@...nel.org>
Applied.   Whilst doing this I note that I'm getting a few sparse
warnings for this driver that would be nice to clean up...

  CHECK   drivers/iio/adc/stm32-dfsdm-adc.c
drivers/iio/adc/stm32-dfsdm-adc.c:503:21: warning: expression using sizeof(void)
drivers/iio/adc/stm32-dfsdm-adc.c:503:21: warning: expression using sizeof(void)

Which is mystifying at first glance... Something deep and dirty in the min macro
but I can't see what..

drivers/iio/adc/stm32-dfsdm-adc.c:680:5: warning: symbol 'stm32_dfsdm_get_buff_cb' was not declared. Should it be static?
drivers/iio/adc/stm32-dfsdm-adc.c:703:5: warning: symbol 'stm32_dfsdm_release_buff_cb' was not declared. Should it be static?

Are rather more obvious