linux-kernel - Re: [PATCH v6 3/5] dt-bindings: iio: magnetometer: ak8975: add gpio reset support

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Message-ID: <20200526222924.GA500332@bogus>
Date:   Tue, 26 May 2020 16:29:24 -0600
From:   Rob Herring <robh@...nel.org>
To:     Jonathan Albrieux <jonathan.albrieux@...il.com>
Cc:     Peter Meerwald-Stadler <pmeerw@...erw.net>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        linux-iio@...r.kernel.org,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Jonathan Cameron <jic23@...nel.org>,
        Rob Herring <robh+dt@...nel.org>, linux-kernel@...r.kernel.org,
        Hartmut Knaack <knaack.h@....de>,
        ~postmarketos/upstreaming@...ts.sr.ht, devicetree@...r.kernel.org
Subject: Re: [PATCH v6 3/5] dt-bindings: iio: magnetometer: ak8975: add gpio
 reset support

On Mon, 25 May 2020 17:10:37 +0200, Jonathan Albrieux wrote:
> Add reset-gpio support.
> 
> Without reset's deassertion during ak8975_power_on(), driver's probe fails
> on ak8975_who_i_am() while checking for device identity for AK09911 chip.
> 
> AK09911 has an active low reset gpio to handle register's reset.
> AK09911 datasheet says that, if not used, reset pin should be connected
> to VID. This patch emulates this situation.
> 
> Signed-off-by: Jonathan Albrieux <jonathan.albrieux@...il.com>
> ---
>  .../bindings/iio/magnetometer/asahi-kasei,ak8975.yaml      | 7 +++++++
>  1 file changed, 7 insertions(+)
> 

Reviewed-by: Rob Herring <robh@...nel.org>