Since the driver supports several parts that present differences in
their layout and behaviour, it is necessary to describe the differences
from one chip to another.
Signed-off-by: Guillaume Stols <redacted>
---
.../devicetree/bindings/iio/adc/adi,ad7606.yaml | 60 +++++++++++++++++++---
1 file changed, 54 insertions(+), 6 deletions(-)
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml
index 626782ea00b3..f825a2c19a06 100644
--- a/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml
@@ -52,10 +52,11 @@ properties:
adi,conversion-start-gpios:
description:
- Must be the device tree identifier of the CONVST pin. This logic input is
- used to initiate conversions on the analog input channels. As the line is
- active high, it should be marked GPIO_ACTIVE_HIGH.
- maxItems: 1
+ Must be the device tree identifier of the CONVST pin(s). This logic input
+ is used to initiate conversions on the analog input channels. As the line
+ is active high, it should be marked GPIO_ACTIVE_HIGH.
+ minItems: 1
+ maxItems: 2
reset-gpios:
description:@@ -88,8 +89,11 @@ properties:
is tied to a logic high, the analog input range is ±10V for all channels.
On the AD760X, if this pin is tied to a logic low, the analog input range
is ±5V for all channels. As the line is active high, it should be marked
- GPIO_ACTIVE_HIGH.
- maxItems: 1
+ GPIO_ACTIVE_HIGH. On the AD7616, there are 2 pins, and if the 2 pins are
+ tied to a logic high, software mode is enabled, otherwise one of the 3
+ possible range values is selected.
+ minItems: 1
+ maxItems: 2
adi,oversampling-ratio-gpios:
description:@@ -123,6 +127,50 @@ required:
allOf:
- $ref: /schemas/spi/spi-peripheral-props.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: adi,ad7616
+ then:
+ properties:
+ adi,first-data-gpios: false
+ standby-gpios: false
+ adi,range-gpios:
+ maxItems: 2
+ else:
+ properties:
+ adi,range-gpios:
+ maxItems: 1
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - adi,ad7605-4
+ - adi,ad7616
+ then:
+ properties:
+ adi,oversampling-ratio-gpios: false
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - adi,ad7605-4
+ - adi,ad7606-4
+ - adi,ad7606-6
+ - adi,ad7606-8
+ then:
+ properties:
+ adi,sw-mode: false
+ else:
+ properties:
+ adi,conversion-start-gpios:
+ maxItems: 1
+
unevaluatedProperties: false
examples:
--
2.34.1