From: Fabio Estevam <festevam@gmail.com>
To: Rob Herring <robh@kernel.org>
Cc: Marco Franchi <marco.franchi@nxp.com>,
Guenter Roeck <linux@roeck-us.net>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
linux-hwmon@vger.kernel.org,
Marco Antonio Franchi <marcofrk@gmail.com>,
FoxPeter@kabelbw.de
Subject: Re: [PATCH v4 2/2] hwmon: (sht15) Add device tree support
Date: Mon, 27 Feb 2017 13:46:42 -0300 [thread overview]
Message-ID: <CAOMZO5D9UyKpxRB_bLrDFohyofTBu=sZArVynu--Fao6PewcKg@mail.gmail.com> (raw)
In-Reply-To: <20170227155752.b6yshpowa4ioty6a@rob-hp-laptop>
Hi Rob,
On Mon, Feb 27, 2017 at 12:57 PM, Rob Herring <robh@kernel.org> wrote:
>> +Required properties:
>> +
>> + - "compatible": must be "sensirion,sht15".
>> + - "data-gpios": GPIO connected to the data line.
>> + - "clk-gpios": GPIO connected to the clock line.
>
> Looks like this device is I2C perhaps? Though I'm not sure the waveforms
> before and after transactions are compliant.
No, the SHT15 datasheet is very clear that the device does not operate
in I2C mode:
"The sensor cannot be addressed by I2C protocol".
WARNING: multiple messages have this Message-ID (diff)
From: Fabio Estevam <festevam-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: Marco Franchi <marco.franchi-3arQi8VN3Tc@public.gmane.org>,
Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>,
"devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
linux-hwmon-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Marco Antonio Franchi
<marcofrk-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
FoxPeter-5t/GDYzpMLSELgA04lAiVw@public.gmane.org
Subject: Re: [PATCH v4 2/2] hwmon: (sht15) Add device tree support
Date: Mon, 27 Feb 2017 13:46:42 -0300 [thread overview]
Message-ID: <CAOMZO5D9UyKpxRB_bLrDFohyofTBu=sZArVynu--Fao6PewcKg@mail.gmail.com> (raw)
In-Reply-To: <20170227155752.b6yshpowa4ioty6a@rob-hp-laptop>
Hi Rob,
On Mon, Feb 27, 2017 at 12:57 PM, Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> wrote:
>> +Required properties:
>> +
>> + - "compatible": must be "sensirion,sht15".
>> + - "data-gpios": GPIO connected to the data line.
>> + - "clk-gpios": GPIO connected to the clock line.
>
> Looks like this device is I2C perhaps? Though I'm not sure the waveforms
> before and after transactions are compliant.
No, the SHT15 datasheet is very clear that the device does not operate
in I2C mode:
"The sensor cannot be addressed by I2C protocol".
--
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next prev parent reply other threads:[~2017-02-27 16:46 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-16 12:23 [PATCH v4 2/2] hwmon: (sht15) Add device tree support Marco Franchi
2017-02-16 12:23 ` Marco Franchi
2017-02-16 12:23 ` [PATCH v4 1/2] dt: Add vendor prefix for Sensirion Marco Franchi
2017-02-16 12:23 ` Marco Franchi
2017-02-16 14:43 ` Guenter Roeck
2017-02-16 14:43 ` Guenter Roeck
2017-02-27 15:58 ` Rob Herring
2017-02-27 17:32 ` Rob Herring
2017-02-16 12:53 ` [PATCH v4 2/2] hwmon: (sht15) Add device tree support Fabio Estevam
2017-02-16 12:53 ` Fabio Estevam
2017-02-16 14:48 ` Guenter Roeck
2017-02-27 15:57 ` Rob Herring
2017-02-27 15:57 ` Rob Herring
2017-02-27 16:46 ` Fabio Estevam [this message]
2017-02-27 16:46 ` Fabio Estevam
2017-02-27 17:31 ` Rob Herring
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