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authorCosmin Tanislav <cosmin.tanislav@analog.com>2022-11-03 14:00:40 +0100
committerJonathan Cameron <Jonathan.Cameron@huawei.com>2022-11-23 20:54:00 +0100
commitd24052695057eb5254d9fedcb5494428f23d3ecb (patch)
tree5c60c08ffc37c191c6fded1cf9dcd3fe283a6604 /Documentation
parentdt-bindings: iio: temperature: ltc2983: use generic node name in example (diff)
downloadlinux-d24052695057eb5254d9fedcb5494428f23d3ecb.tar.xz
linux-d24052695057eb5254d9fedcb5494428f23d3ecb.zip
dt-bindings: iio: temperature: ltc2983: support more parts
Add support for the following parts: * LTC2984 * LTC2986 * LTM2985 The LTC2984 is a variant of the LTC2983 with EEPROM. The LTC2986 is a variant of the LTC2983 with only 10 channels, EEPROM and support for active analog temperature sensors. The LTM2985 is software-compatible with the LTC2986. Signed-off-by: Cosmin Tanislav <cosmin.tanislav@analog.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20221103130041.2153295-13-demonsingur@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/iio/temperature/adi,ltc2983.yaml60
1 files changed, 56 insertions, 4 deletions
diff --git a/Documentation/devicetree/bindings/iio/temperature/adi,ltc2983.yaml b/Documentation/devicetree/bindings/iio/temperature/adi,ltc2983.yaml
index 0e8333260a44..44f8b0672f53 100644
--- a/Documentation/devicetree/bindings/iio/temperature/adi,ltc2983.yaml
+++ b/Documentation/devicetree/bindings/iio/temperature/adi,ltc2983.yaml
@@ -4,19 +4,30 @@
$id: http://devicetree.org/schemas/iio/temperature/adi,ltc2983.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Analog Devices LTC2983 Multi-sensor Temperature system
+title: Analog Devices LTC2983, LTC2986, LTM2985 Multi-sensor Temperature system
maintainers:
- Nuno Sá <nuno.sa@analog.com>
description: |
- Analog Devices LTC2983 Multi-Sensor Digital Temperature Measurement System
+ Analog Devices LTC2983, LTC2984, LTC2986, LTM2985 Multi-Sensor Digital
+ Temperature Measurement Systems
+
https://www.analog.com/media/en/technical-documentation/data-sheets/2983fc.pdf
+ https://www.analog.com/media/en/technical-documentation/data-sheets/2984fb.pdf
+ https://www.analog.com/media/en/technical-documentation/data-sheets/29861fa.pdf
+ https://www.analog.com/media/en/technical-documentation/data-sheets/ltm2985.pdf
properties:
compatible:
- enum:
- - adi,ltc2983
+ oneOf:
+ - enum:
+ - adi,ltc2983
+ - adi,ltc2986
+ - adi,ltm2985
+ - items:
+ - const: adi,ltc2984
+ - const: adi,ltc2983
reg:
maxItems: 1
@@ -386,6 +397,35 @@ patternProperties:
description: Whether the sensor is single-ended.
type: boolean
+ "^temp@":
+ type: object
+ description: Active analog temperature sensor.
+
+ properties:
+ adi,sensor-type:
+ description: Sensor type for active analog temperature sensors.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ const: 31
+
+ adi,single-ended:
+ description: Whether the sensor is single-ended.
+ type: boolean
+
+ adi,custom-temp:
+ description:
+ Used for digitizing active analog temperature sensors.
+ See Page 67 of the LTM2985 datasheet.
+ $ref: /schemas/types.yaml#/definitions/uint64-matrix
+ minItems: 3
+ maxItems: 64
+ items:
+ items:
+ - description: Voltage point in nV, signed.
+ - description: Temperature point in uK.
+
+ required:
+ - adi,custom-temp
+
"^rsense@":
type: object
description: Sense resistor sensor.
@@ -413,6 +453,18 @@ required:
additionalProperties: false
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - adi,ltc2983
+ - adi,ltc2984
+ then:
+ patternProperties:
+ "^temp@": false
+
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>