RE: [PATCH v4 3/3] iio: temperature: ltc2983: Make use of device properties

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> From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
> Sent: Friday, March 4, 2022 7:03 PM
> To: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>; linux-
> iio@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx
> Cc: Sa, Nuno <Nuno.Sa@xxxxxxxxxx>; Jonathan Cameron
> <jic23@xxxxxxxxxx>; Lars-Peter Clausen <lars@xxxxxxxxxx>
> Subject: [PATCH v4 3/3] iio: temperature: ltc2983: Make use of device
> properties
> 
> [External]
> 
> Convert the module to be property provider agnostic and allow
> it to be used on non-OF platforms.
> 
> The conversion slightly changes the logic behind property reading for
> the configuration values. Original code allocates just as much memory
> as needed. Then for each separate 32- or 64-bit value it reads it from
> the property and converts to a raw one which will be fed to the sensor.
> In the new code we allocate the amount of memory needed to
> retrieve all
> values at once from the property and then convert them as required.
> 
> Signed-off-by: Andy Shevchenko
> <andriy.shevchenko@xxxxxxxxxxxxxxx>
> Tested-by: Nuno Sá <nuno.sa@xxxxxxxxxx>
> ---
> v4: added checks for error pointer (Nuno), added Tb tag (Nuno)
> v3: no changes
> 

Hi Andy,

So the patch now just works after applying. Also, removed the
if()...else() in ltc2983_thermocouple_new() and turned it into

if (!IS_ERR_OR_NULL(ref)) {
   ...
}

and applied your fwnode fix and things work....

- Nuno Sá





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