linux-kernel - Re: [PATCH v7 2/2] iio: adc: ad7173: add AD7173 driver

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Message-ID: <e72085fd-3203-4166-afab-73707d27d174@gmail.com>
Date:   Tue, 5 Dec 2023 18:12:18 +0200
From:   Ceclan Dumitru <mitrutzceclan@...il.com>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     linus.walleij@...aro.org, brgl@...ev.pl, andy@...nel.org,
        linux-gpio@...r.kernel.org, Lars-Peter Clausen <lars@...afoo.de>,
        Jonathan Cameron <jic23@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Michael Walle <michael@...le.cc>,
        Arnd Bergmann <arnd@...db.de>,
        ChiaEn Wu <chiaen_wu@...htek.com>,
        Niklas Schnelle <schnelle@...ux.ibm.com>,
        Leonard Göhrs <l.goehrs@...gutronix.de>,
        Mike Looijmans <mike.looijmans@...ic.nl>,
        Haibo Chen <haibo.chen@....com>,
        Hugo Villeneuve <hvilleneuve@...onoff.com>,
        Ceclan Dumitru <dumitru.ceclan@...log.com>,
        linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 2/2] iio: adc: ad7173: add AD7173 driver



On 12/5/23 17:28, Andy Shevchenko wrote:
>> +               ref_label = ad7173_ref_sel_str[AD7173_SETUP_REF_SEL_INT_REF];
>> +
>> +               fwnode_property_read_string(child, "adi,reference-select",
>> +                                           &ref_label);
>> +               ref_sel = match_string(ad7173_ref_sel_str,
>> +                                      ARRAY_SIZE(ad7173_ref_sel_str), ref_label);
>> +               if (ref_sel < 0) {
> Can we use fwnode_property_match_property_string()?

fwnode_property_match_string() searches a given string in a device-tree
string array and returns the index. I do not think that this function
fits here as the DT attribute is a single string.