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Message-Id: <20220216070720.2131761-1-linux@roeck-us.net>
Date: Tue, 15 Feb 2022 23:07:19 -0800
From: Guenter Roeck <linux@...ck-us.net>
To: linux-hwmon@...r.kernel.org
Cc: Agathe Porte <agathe.porte@...ia.com>,
Jean Delvare <jdelvare@...e.com>,
Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
Krzysztof Adamski <krzysztof.adamski@...ia.com>,
Guenter Roeck <linux@...ck-us.net>
Subject: [PATCH v3 1/2] dt-bindings: hwmon: add tmp464.yaml
From: Agathe Porte <agathe.porte@...ia.com>
Add basic description of the tmp464 driver DT bindings.
Signed-off-by: Agathe Porte <agathe.porte@...ia.com>
Cc: Krzysztof Adamski <krzysztof.adamski@...ia.com>
Signed-off-by: Guenter Roeck <linux@...ck-us.net>
---
Note:
I had previously asked to add more detailed bindings, but concluded
that those should be provided in a generic temperature sensor schema.
I'll try to introduce such a schema separately.
v3:
- Addedd support for TMP468.
- Changed number of channels from 0..3 (which was wrong anyway) to 0..8.
- Changed value range for ti,n-factor to int8, with an example for
a negative value.
- Added myself as driver maintainer.
.../devicetree/bindings/hwmon/ti,tmp464.yaml | 109 ++++++++++++++++++
MAINTAINERS | 7 ++
2 files changed, 116 insertions(+)
create mode 100644 Documentation/devicetree/bindings/hwmon/ti,tmp464.yaml
diff --git a/Documentation/devicetree/bindings/hwmon/ti,tmp464.yaml b/Documentation/devicetree/bindings/hwmon/ti,tmp464.yaml
new file mode 100644
index 000000000000..8ce4be729494
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/ti,tmp464.yaml
@@ -0,0 +1,109 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/hwmon/ti,tmp464.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TMP464 and TMP468 temperature sensors
+
+maintainers:
+ - Agathe Porte <agathe.porte@...ia.com>
+
+description: |
+ ±0.0625°C Remote and Local temperature sensor
+ https://www.ti.com/lit/ds/symlink/tmp464.pdf
+ https://www.ti.com/lit/ds/symlink/tmp468.pdf
+
+properties:
+ compatible:
+ enum:
+ - ti,tmp464
+ - ti,tmp468
+
+ reg:
+ maxItems: 1
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+patternProperties:
+ "^channel@([0-8])$":
+ type: object
+ description: |
+ Represents channels of the device and their specific configuration.
+
+ properties:
+ reg:
+ description: |
+ The channel number. 0 is local channel, 1-8 are remote channels.
+ items:
+ minimum: 0
+ maximum: 8
+
+ label:
+ description: |
+ A descriptive name for this channel, like "ambient" or "psu".
+
+ ti,n-factor:
+ description: |
+ The value (two's complement) to be programmed in the channel specific N correction register.
+ For remote channels only.
+ $ref: /schemas/types.yaml#/definitions/int8
+ items:
+ minimum: -128
+ maximum: 127
+
+ required:
+ - reg
+
+ additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ sensor@4b {
+ compatible = "ti,tmp464";
+ reg = <0x4b>;
+ };
+ };
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ sensor@4b {
+ compatible = "ti,tmp464";
+ reg = <0x4b>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ channel@0 {
+ reg = <0x0>;
+ ti,n-factor = /bits/ 8 <(-10)>;
+ label = "local";
+ };
+
+ channel@1 {
+ reg = <0x1>;
+ ti,n-factor = /bits/ 8 <0x0>;
+ label = "somelabel";
+ };
+
+ channel@2 {
+ reg = <0x2>;
+ status = "disabled";
+ };
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index fca970a46e77..f51bc7c7e439 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -19489,6 +19489,13 @@ S: Maintained
F: Documentation/hwmon/tmp401.rst
F: drivers/hwmon/tmp401.c
+TMP464 HARDWARE MONITOR DRIVER
+M: Agathe Porte <agathe.porte@...ia.com>
+M: Guenter Roeck <linux@...ck-us.net>
+L: linux-hwmon@...r.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/hwmon/ti,tmp464.yaml
+
TMP513 HARDWARE MONITOR DRIVER
M: Eric Tremblay <etremblay@...tech-controls.com>
L: linux-hwmon@...r.kernel.org
--
2.35.1
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