Re: [PATCH 04/13] iio: adc: ti-ads8688: add missing select IIO_(TRIGGERED_)BUFFER in Kconfig

[Jonathan Cameron <jic23@kernel.org>]

On Sat, 5 Oct 2024 20:21:06 +0200
Javier Carrasco <javier.carrasco.cruz@gmail.com> wrote:

> On 05/10/2024 19:40, Jonathan Cameron wrote:
> > On Thu, 03 Oct 2024 23:04:50 +0200
> > Javier Carrasco <javier.carrasco.cruz@gmail.com> wrote:
> >   
> >> This driver makes use of triggered buffers, but does not select the
> >> required modules.
> >>
> >> Fixes: 2a86487786b5 ("iio: adc: ti-ads8688: add trigger and buffer support")
> >> Add the missing 'select IIO_BUFFER' and 'select IIO_TRIGGERED_BUFFER'.  
> > Fixes tag must be part of the tag block.
> > 
> > Also this one looks to be a false positive. The driver includes
> > buffer.h but doesn't actually have buffered support.
> >   
> 
> Are you sure? These are the errors I get when I compile the ti-ads8688.c:
> 
> ld: drivers/iio/adc/ti-ads8688.o: in function `ads8688_probe':
> ti-ads8688.c:(.text+0x1cf): undefined reference to
> `devm_iio_triggered_buffer_setup_ext'
> ld: drivers/iio/adc/ti-ads8688.o: in function `ads8688_trigger_handler':
> ti-ads8688.c:(.text+0x3be): undefined reference to `iio_push_to_buffers'
> ld: ti-ads8688.c:(.text+0x3c9): undefined reference to
> `iio_trigger_notify_done'
> make[2]: *** [scripts/Makefile.vmlinux:34: vmlinux] Error 1
> make[1]: *** [/home/jc/pw/linux/linux-next/Makefile:1173: vmlinux] Error 2
> make: *** [Makefile:224: __sub-make] Error 2
> 
> And I see the offending functions in its code. Am I missing something
> here or are we talking about different drivers?
Miss read by me.  I picked up on the 8344 in diff.
That does have a spurious include so I stopped looking closer!

Anyhow, now applied to the fixes-togreg branch of iio.git and
marked for stable.

Sorry about that!

Thanks,

Jonathan

> 
> >>
> >> Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
> >> ---
> >>  drivers/iio/adc/Kconfig | 2 ++
> >>  1 file changed, 2 insertions(+)
> >>
> >> diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
> >> index 45872a4e2acf..e6be1f1ec79f 100644
> >> --- a/drivers/iio/adc/Kconfig
> >> +++ b/drivers/iio/adc/Kconfig
> >> @@ -1483,6 +1483,8 @@ config TI_ADS8344
> >>  config TI_ADS8688
> >>  	tristate "Texas Instruments ADS8688"
> >>  	depends on SPI
> >> +	select IIO_BUFFER
> >> +	select IIO_TRIGGERED_BUFFER
> >>  	help
> >>  	  If you say yes here you get support for Texas Instruments ADS8684 and
> >>  	  and ADS8688 ADC chips
> >>  
> >   
>