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dt-bindings: adc: ad7173: add support for additional models

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Add support for: AD7172-2, AD7175-8, AD7177-2.
AD7172-4 does not feature an internal reference, check for external
 reference presence.

Signed-off-by: Dumitru Ceclan <mitrutzceclan@gmail.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240306110956.13167-2-mitrutzceclan@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Dumitru Ceclan 2024-03-06 13:09:54 +02:00 committed by Jonathan Cameron
parent 620d1e6c7a
commit 88a1ffc690
1 changed files with 36 additions and 3 deletions
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39
Documentation/devicetree/bindings/iio/adc/adi,ad7173.yaml
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@ -21,17 +21,23 @@ description: |
Datasheets for supported chips:
https://www.analog.com/media/en/technical-documentation/data-sheets/AD7172-2.pdf
https://www.analog.com/media/en/technical-documentation/data-sheets/AD7172-4.pdf
https://www.analog.com/media/en/technical-documentation/data-sheets/AD7173-8.pdf
https://www.analog.com/media/en/technical-documentation/data-sheets/AD7175-2.pdf
https://www.analog.com/media/en/technical-documentation/data-sheets/AD7175-8.pdf
https://www.analog.com/media/en/technical-documentation/data-sheets/AD7176-2.pdf
https://www.analog.com/media/en/technical-documentation/data-sheets/AD7177-2.pdf
properties:
compatible:
enum:
- adi,ad7172-2
- adi,ad7172-4
- adi,ad7173-8
- adi,ad7175-2
- adi,ad7175-8
- adi,ad7176-2
- adi,ad7177-2
reg:
maxItems: 1
@ -136,8 +142,10 @@ patternProperties:
refout-avss: REFOUT/AVSS (Internal reference)
avdd : AVDD /AVSS
External reference ref2 only available on ad7173-8.
If not specified, internal reference used.
External reference ref2 only available on ad7173-8 and ad7172-4.
Internal reference refout-avss not available on ad7172-4.
If not specified, internal reference used (if available).
$ref: /schemas/types.yaml#/definitions/string
enum:
- vref
@ -157,12 +165,17 @@ required:
allOf:
- $ref: /schemas/spi/spi-peripheral-props.yaml#
# Only ad7172-4, ad7173-8 and ad7175-8 support vref2
# Other models have [0-3] channel registers
- if:
properties:
compatible:
not:
contains:
const: adi,ad7173-8
enum:
- adi,ad7172-4
- adi,ad7173-8
- adi,ad7175-8
then:
properties:
vref2-supply: false
@ -177,6 +190,26 @@ allOf:
reg:
maximum: 3
# Model ad7172-4 does not support internal reference
- if:
properties:
compatible:
contains:
const: adi,ad7172-4
then:
patternProperties:
"^channel@[0-9a-f]$":
properties:
reg:
maximum: 7
adi,reference-select:
enum:
- vref
- vref2
- avdd
required:
- adi,reference-select
- if:
anyOf:
- required: [clock-names]