From: Patrick Havelange <patrick.havelange@essensium.com>
To: Jonathan Cameron <jic23@kernel.org>,
Hartmut Knaack <knaack.h@gmx.de>,
Lars-Peter Clausen <lars@metafoo.de>,
Peter Meerwald-Stadler <pmeerw@pmeerw.net>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Paresh Chaudhary <paresh.chaudhary@rockwellcollins.com>,
Matt Weber <matthew.weber@rockwellcollins.com>,
linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org,
devicetree@vger.kernel.org
Cc: Patrick Havelange <patrick.havelange@essensium.com>
Subject: [PATCH v5 1/2] iio:temperature:max31856:Add device tree bind info
Date: Tue, 26 Feb 2019 16:02:13 +0100 [thread overview]
Message-ID: <20190226150214.19467-1-patrick.havelange@essensium.com> (raw)
From: Paresh Chaudhary <paresh.chaudhary@rockwellcollins.com>
This patch added device tree binding info for MAX31856 driver.
Signed-off-by: Paresh Chaudhary <paresh.chaudhary@rockwellcollins.com>
Signed-off-by: Matt Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Patrick Havelange <patrick.havelange@essensium.com>
---
Changes
v1 -> v2
[Matt
- Removed comment block and added possibilities of
thermocouple type in device tree binding doc.
v2 -> v3
- Rebased
v3 -> v4
- Removed one-shot property related information.
- Used standard name 'temp-sensor'
v4 -> v5
[Patrick
- Rename thermocouple type to maxim,thermocouple-type for DT entry
---
.../bindings/iio/temperature/max31856.txt | 29 +++++++++++++++++++
1 file changed, 29 insertions(+)
create mode 100644 Documentation/devicetree/bindings/iio/temperature/max31856.txt
diff --git a/Documentation/devicetree/bindings/iio/temperature/max31856.txt b/Documentation/devicetree/bindings/iio/temperature/max31856.txt
new file mode 100644
index 000000000000..b4396069b8fa
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/temperature/max31856.txt
@@ -0,0 +1,29 @@
+Maxim MAX31856 thermocouple support
+
+https://datasheets.maximintegrated.com/en/ds/MAX31856.pdf
+
+Required properties:
+ - compatible: must be "maxim,max31856"
+ - reg: SPI chip select number for the device
+ - spi-max-frequency: As per datasheet max. supported freq is 5000000
+ - spi-cpha: must be defined for max31856 to enable SPI mode 1
+ - maxim,thermocouple-type: Type of thermocouple (By default is K-Type)
+ 0x00 : TYPE_B
+ 0x01 : TYPE_E
+ 0x02 : TYPE_J
+ 0x03 : TYPE_K (default)
+ 0x04 : TYPE_N
+ 0x05 : TYPE_R
+ 0x06 : TYPE_S
+ 0x07 : TYPE_T
+
+ Refer to spi/spi-bus.txt for generic SPI slave bindings.
+
+ Example:
+ temp-sensor@0 {
+ compatible = "maxim,max31856";
+ reg = <0>;
+ spi-max-frequency = <5000000>;
+ spi-cpha;
+ maxim,thermocouple-type = <0x03>;
+ };
--
2.19.1
next reply other threads:[~2019-02-26 15:02 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-26 15:02 Patrick Havelange [this message]
2019-02-26 15:02 ` [PATCH v5 2/2] iio:temperature: Add MAX31856 thermocouple support Patrick Havelange
2019-03-03 13:08 ` Jonathan Cameron
2019-02-27 23:59 ` [PATCH v5 1/2] iio:temperature:max31856:Add device tree bind info Rob Herring
2019-02-28 15:15 ` Patrick Havelange
2019-03-03 13:02 ` Jonathan Cameron
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190226150214.19467-1-patrick.havelange@essensium.com \
--to=patrick.havelange@essensium.com \
--cc=devicetree@vger.kernel.org \
--cc=jic23@kernel.org \
--cc=knaack.h@gmx.de \
--cc=lars@metafoo.de \
--cc=linux-iio@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=matthew.weber@rockwellcollins.com \
--cc=paresh.chaudhary@rockwellcollins.com \
--cc=pmeerw@pmeerw.net \
--cc=robh+dt@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®