linux-kernel - Re: [PATCH v4 3/3] iio: temperature: ltc2983: Make use of device properties

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Message-ID: <YiJaRoIVSU8fIly3@smile.fi.intel.com>
Date:   Fri, 4 Mar 2022 20:28:22 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Nuno Sá <nuno.sa@...log.com>,
        Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>
Subject: Re: [PATCH v4 3/3] iio: temperature: ltc2983: Make use of device
 properties

On Fri, Mar 04, 2022 at 08:02:57PM +0200, Andy Shevchenko wrote:
> 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@...ux.intel.com>
> Tested-by: Nuno Sá <nuno.sa@...log.com>
> ---
> v4: added checks for error pointer (Nuno), added Tb tag (Nuno)
> v3: no changes

Forgot to add, that this patch should work without fwnode fix.
To test fwnode fix, the part of the NULLifying ref should be
(temporary) dropped.

-- 
With Best Regards,
Andy Shevchenko