On Wed, 19 May 2021 07:37:16 +0200
Sean Nyekjaer <sean@xxxxxxxxxx> wrote:
> On 19/05/2021 01.48, trix@xxxxxxxxxx wrote:
> > From: Tom Rix <trix@xxxxxxxxxx>
> >
> > 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@xxxxxxxxxx>
> Reviewed-by: Sean Nyekjaer <sean@xxxxxxxxxx>
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.
> > ---
> > drivers/iio/accel/fxls8962af-core.c | 4 ++++
> > 1 file changed, 4 insertions(+)
> >
> > diff --git a/drivers/iio/accel/fxls8962af-core.c b/drivers/iio/accel/fxls8962af-core.c
> > index 9fe5a18a605cc..b6d833e2058c8 100644
> > --- a/drivers/iio/accel/fxls8962af-core.c
> > +++ b/drivers/iio/accel/fxls8962af-core.c
> > @@ -624,6 +624,7 @@ static const struct iio_buffer_setup_ops fxls8962af_buffer_ops = {
> > .postdisable = fxls8962af_buffer_postdisable,
> > };
> >
> > +#if IS_ENABLED(CONFIG_FXLS8962AF_I2C)
> > static int fxls8962af_i2c_raw_read_errata3(struct fxls8962af_data *data,
> > u16 *buffer, int samples,
> > int sample_length)
> > @@ -639,6 +640,7 @@ static int fxls8962af_i2c_raw_read_errata3(struct fxls8962af_data *data,
> >
> > return ret;
> > }
> > +#endif
> >
> > static int fxls8962af_fifo_transfer(struct fxls8962af_data *data,
> > u16 *buffer, int samples)
> > @@ -648,6 +650,7 @@ static int fxls8962af_fifo_transfer(struct fxls8962af_data *data,
> > int total_length = samples * sample_length;
> > int ret;
> >
> > +#if IS_ENABLED(CONFIG_FXLS8962AF_I2C)
> > if (i2c_verify_client(dev))
> > /*
> > * Due to errata bug:
> > @@ -657,6 +660,7 @@ static int fxls8962af_fifo_transfer(struct fxls8962af_data *data,
> > ret = fxls8962af_i2c_raw_read_errata3(data, buffer, samples,
> > sample_length);
> > else
> > +#endif
> > ret = regmap_raw_read(data->regmap, FXLS8962AF_BUF_X_LSB, buffer,
> > total_length);
> >
> >
>
