On Wed, 2020-03-18 at 21:52 +0530, Rohit Sarkar wrote:
> On Wed, Mar 18, 2020 at 09:36:50PM +0530, DEEPAK VARMA wrote:
> > On Wed, Mar 18, 2020 at 09:31:58AM +0100, Stefano Brivio wrote:
> > > On Wed, 18 Mar 2020 09:56:59 +0530
> > > Deepak R Varma <mh12gx2825@xxxxxxxxx> wrote:
> > >
> > > > Macro arguments are computed at the time of macro invocation. This makes
> > > > the lines cross 80 column width. Add variables to perform the
> > > > calculations before hand and use these new variable in the macro calls
> > > > instead.
> > > >
> > > > Also re-indent enum members to address checkpatch warning / check
> > > > messages.
> > > >
> > > > Signed-off-by: Deepak R Varma <mh12gx2825@xxxxxxxxx>
> > > > ---
> > > > drivers/staging/iio/adc/ad7192.c | 15 ++++++++-------
> > > > 1 file changed, 8 insertions(+), 7 deletions(-)
> > > >
> > > > diff --git a/drivers/staging/iio/adc/ad7192.c
> > > > b/drivers/staging/iio/adc/ad7192.c
> > > > index bf3e2a9cc07f..0265f6607d75 100644
> > > > --- a/drivers/staging/iio/adc/ad7192.c
> > > > +++ b/drivers/staging/iio/adc/ad7192.c
> > > > @@ -156,8 +156,8 @@
> > > > */
> > > >
> > > > enum {
> > > > - AD7192_SYSCALIB_ZERO_SCALE,
> > > > - AD7192_SYSCALIB_FULL_SCALE,
> > > > + AD7192_SYSCALIB_ZERO_SCALE,
> > > > + AD7192_SYSCALIB_FULL_SCALE,
> > > > };
> > > >
> > > > struct ad7192_state {
> > > > @@ -477,17 +477,18 @@ static ssize_t ad7192_set(struct device *dev,
> > > > }
> > > >
> > > > static void ad7192_get_available_filter_freq(struct ad7192_state *st,
> > > > - int *freq)
> > > > + int *freq)
> > > > {
> > > > unsigned int fadc;
> > > > + unsigned int sync3_filter, sync4_filter;
> > > >
> > > > /* Formulas for filter at page 25 of the datasheet */
> > > > - fadc = DIV_ROUND_CLOSEST(st->fclk,
> > > > - AD7192_SYNC4_FILTER *
> > > > AD7192_MODE_RATE(st->mode));
> > > > + sync4_filter = AD7192_SYNC4_FILTER * AD7192_MODE_RATE(st->mode);
> > >
> > > Have you read page 25 of the datasheet? Why is this called
> > > sync4_filter, with a 'y'?
> > >
> >
> > Sorry, I am not sure what you are referring to. Can you please elaborate
> > or point me to where the data sheet is located?
> >
> > Deepak.
>
> Hey Deepak,
> You can find the datasheet for ad7192 here
> https://pdf1.alldatasheet.com/datasheet-pdf/view/988287/AD/AD7192.html
Most Analog datasheets can be found directly on the official website.
https://www.analog.com/media/en/technical-documentation/data-sheets/AD7192.pdf
The simplest way is to open a browser, type: analog.com/<part-name> [in this
case analog.com/ad7192], that opens-up the part page, scroll down and there's a
link to the datasheet [in this case, the link above].
Particularly for Analog parts, this is a bit simpler than searching on Google.
Though Google will find the official datasheets quicker, after you visit the
analog.com site a few times.
>
> Thanks,
> Rohit
