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From:   Logan Shaw <logan.shaw@alliedtelesis.co.nz>
To:     linux@roeck-us.net, jdelvare@suse.com, robh+dt@kernel.org
Cc:     linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org,
        devicetree@vger.kernel.org, Joshua.Scott@alliedtelesis.co.nz,
        Chris.Packham@alliedtelesis.co.nz, logan.shaw@alliedtelesis.co.nz
Subject: [PATCH v3 2/2] hwmon: (adt7475) Added attenuator bypass support
Date:   Fri, 17 Jan 2020 16:50:18 +1300
Message-Id: <20200117035018.11985-3-logan.shaw@alliedtelesis.co.nz>
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Added a new file documenting the adt7475 devicetree and added the four
new properties to it.

Signed-off-by: Logan Shaw <logan.shaw@alliedtelesis.co.nz>
---
---
 .../devicetree/bindings/hwmon/adt7475.yaml    | 90 +++++++++++++++++++
 1 file changed, 90 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hwmon/adt7475.yaml

diff --git a/Documentation/devicetree/bindings/hwmon/adt7475.yaml b/Docum=
entation/devicetree/bindings/hwmon/adt7475.yaml
new file mode 100644
index 000000000000..e201948beb35
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/adt7475.yaml
@@ -0,0 +1,90 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/adt7475.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ADT7475 hwmon sensor
+
+maintainers:
+  - Jean Delvare <jdelvare@suse.com>
+
+description: |
+  The ADT7473, ADT7475, ADT7476, and ADT7490 are thermal monitors and mu=
ltiple
+  PWN fan controllers.
+
+  They support monitoring and controlling up to four fans (the ADT7490 c=
an only
+  control up to three). They support reading a single on chip temperatur=
e
+  sensor and two off chip temperature sensors (the ADT7490 additionally
+  supports measuring up to three current external temperature sensors wi=
th
+  series resistance cancellation (SRC)).
+
+  Datasheets:
+  https://www.onsemi.com/pub/Collateral/ADT7473-D.PDF
+  https://www.onsemi.com/pub/Collateral/ADT7475-D.PDF
+  https://www.onsemi.com/pub/Collateral/ADT7476-D.PDF
+  https://www.onsemi.com/pub/Collateral/ADT7490-D.PDF
+
+  Description taken from omsemiconductors specification sheets, with min=
or
+  rephrasing.
+
+properties:
+  compatible:
+    enum:
+      - adi,adt7473
+      - adi,adt7475
+      - adi,adt7476
+      - adi,adt7490
+
+  reg:
+    maxItems: 1
+
+  bypass-attenuator-in0:
+    description: |
+      Configures bypassing the individual voltage input
+      attenuator, on in0. This is supported on the ADT7476 and ADT7490.
+      If set to a non-zero integer the attenuator is bypassed, if set to
+      zero the attenuator is not bypassed. If the property is absent the=
n
+      the config register is not modified.
+    maxItems: 1
+
+  bypass-attenuator-in1:
+    description: |
+      Configures bypassing the individual voltage input
+      attenuator, on in1. This is supported on the ADT7473, ADT7475,
+      ADT7476 and ADT7490. If set to a non-zero integer the attenuator
+      is bypassed, if set to zero the attenuator is not bypassed. If the
+      property is absent then the config register is not modified.
+    maxItems: 1
+
+  bypass-attenuator-in3:
+    description: |
+      Configures bypassing the individual voltage input
+      attenuator, on in3. This is supported on the ADT7476 and ADT7490.
+      If set to a non-zero integer the attenuator is bypassed, if set to
+      zero the attenuator is not bypassed. If the property is absent the=
n
+      the config register is not modified.
+    maxItems: 1
+
+  bypass-attenuator-in4:
+    description: |
+      Configures bypassing the individual voltage input
+      attenuator, on in4. This is supported on the ADT7476 and ADT7490.
+      If set to a non-zero integer the attenuator is bypassed, if set to
+      zero the attenuator is not bypassed. If the property is absent the=
n
+      the config register is not modified.
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+examples:
+  - |
+    hwmon@2e {
+      compatible =3D "adi,adt7476";
+      reg =3D <0x2e>;
+      bypass-attenuator-in1 =3D <1>;
+      bypass-attenuator-in1 =3D <0>;
+    };
+...
--=20
2.25.0