linux-kernel - Re: [PATCH] iio: accel: fxls8962af: conditionally compile fxls8962af_i2c_raw_read

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Date:   Tue, 25 May 2021 22:30:52 +0200
From:   Wolfram Sang <wsa@...nel.org>
To:     Jonathan Cameron <jic23@...nel.org>
Cc:     Sean Nyekjaer <sean@...nix.com>, trix@...hat.com, lars@...afoo.de,
        andy.shevchenko@...il.com, linux-iio@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-i2c@...r.kernel.org
Subject: Re: [PATCH] iio: accel: fxls8962af: conditionally compile
 fxls8962af_i2c_raw_read_errata3()


> > > The build is failing with this link error
> > > ld: fxls8962af-core.o: in function `fxls8962af_fifo_transfer':
> > > fxls8962af-core.c: undefined reference to `i2c_verify_client'
> > > 
> > > This is needed for the i2c variant, not the spi variant. So
> > > conditionally compile based on CONFIG_FXLS8962AF_I2C.
> > >   
> > Fixes: 68068fad0e1c ("iio: accel: fxls8962af: fix errata bug E3 - I2C burst reads")
> > > Signed-off-by: Tom Rix <trix@...hat.com>  
> > Reviewed-by: Sean Nyekjaer <sean@...nix.com>
> 
> Given the purpose of that check is to verify it was an i2c_client
> should we be looking to instead provide a stub for the case where
> we don't have CONFIG_I2C?
> 
> +CC Wolfram and linux-i2c list for input.

Such a stub sounds reasonable.


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