@@ -18,8 +18,6 @@ description: |
* https://www.analog.com/en/products/ad4697.html
* https://www.analog.com/en/products/ad4698.html
-$ref: /schemas/spi/spi-peripheral-props.yaml#
-
properties:
compatible:
enum:
@@ -84,6 +82,9 @@ properties:
description: The Reset Input (RESET). Should be configured GPIO_ACTIVE_LOW.
maxItems: 1
+ pwms:
+ description: PWM signal connected to the CNV pin.
+
interrupts:
minItems: 1
items:
@@ -106,6 +107,15 @@ properties:
The first cell is the GPn number: 0 to 3.
The second cell takes standard GPIO flags.
+ '#trigger-source-cells':
+ description: |
+ First cell indicates the output signal: 0 = BUSY, 1 = ALERT.
+ Second cell indicates which GPn pin is used: 0, 2 or 3.
+
+ For convenience, macros for these values are available in
+ dt-bindings/iio/adc/adi,ad4695.h.
+ const: 2
+
"#address-cells":
const: 1
@@ -166,6 +176,8 @@ required:
- vio-supply
allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+ - $ref: /schemas/spi/trigger-source.yaml#
- oneOf:
- required:
- ldo-in-supply
@@ -6,4 +6,11 @@
#define AD4695_COMMON_MODE_REFGND 0xFF
#define AD4695_COMMON_MODE_COM 0xFE
+#define AD4695_TRIGGER_EVENT_BUSY 0
+#define AD4695_TRIGGER_EVENT_ALERT 1
+
+#define AD4695_TRIGGER_PIN_GP0 0
+#define AD4695_TRIGGER_PIN_GP2 2
+#define AD4695_TRIGGER_PIN_GP3 3
+
#endif /* _DT_BINDINGS_ADI_AD4695_H */
Add a pwms property to the adi,ad4695 binding to specify an optional PWM output connected to the CNV pin on the ADC. Also add #trigger-source-cells property to allow the BUSY output to be used as a SPI offload trigger source to indicate when a sample is ready to be read. Macros are added to adi,ad4695.h for the cell values to help with readability since they are arbitrary values. The $ref for spi-peripheral-props.yaml is moved to keep similar $refs grouped together. Signed-off-by: David Lechner <dlechner@baylibre.com> --- v5 changes: * Added macros for cell values v4 changes: new patch in v4 --- .../devicetree/bindings/iio/adc/adi,ad4695.yaml | 16 ++++++++++++++-- include/dt-bindings/iio/adc/adi,ad4695.h | 7 +++++++ 2 files changed, 21 insertions(+), 2 deletions(-)