From: Fabrizio Lamarque <fl.scratchpad@xxxxxxxxx>
AD7192 supports external clock sources, generated by a digital clock
source or a crystal oscillator, or internally generated clock option
without external components.
Describe choice between internal and external clock, crystal or external
oscillator, and internal clock output enable.
Signed-off-by: Fabrizio Lamarque <fl.scratchpad@xxxxxxxxx>
---
.../bindings/iio/adc/adi,ad7192.yaml | 27 ++++++++++++++++---
1 file changed, 24 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml
index 16def2985ab4..f7ecfd65ad80 100644
--- a/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml
@@ -32,7 +32,8 @@ properties:
clocks:
maxItems: 1
- description: phandle to the master clock (mclk)
+ description: |
+ Master clock (mclk). If not set, internal clock is used.
clock-names:
items:
@@ -50,6 +51,17 @@ properties:
vref-supply:
description: VRef voltage supply
+ adi,clock-xtal:
+ description: |
+ Select whether an external crystal oscillator or an external
+ clock is applied as master (mclk) clock.
+ type: boolean
+
+ adi,int-clock-output-enable:
+ description: |
+ When internal clock is selected, this bit enables clock out pin.
+ type: boolean
+
adi,rejection-60-Hz-enable:
description: |
This bit enables a notch at 60 Hz when the first notch of the sinc
@@ -84,11 +96,12 @@ properties:
description: see Documentation/devicetree/bindings/iio/adc/adc.yaml
type: boolean
+dependencies:
+ adi,clock-xtal: ['clocks', 'clock-names']
+
required:
- compatible
- reg
- - clocks
- - clock-names
- interrupts
- dvdd-supply
- avdd-supply
@@ -98,6 +111,13 @@ required:
allOf:
- $ref: /schemas/spi/spi-peripheral-props.yaml#
+ - if:
+ required:
+ - clocks
+ - clock-names
+ then:
+ properties:
+ adi,int-clock-output-enable: false
unevaluatedProperties: false
@@ -115,6 +135,7 @@ examples:
spi-cpha;
clocks = <&ad7192_mclk>;
clock-names = "mclk";
+ adi,clock-xtal;
interrupts = <25 0x2>;
interrupt-parent = <&gpio>;
dvdd-supply = <&dvdd>;
--
2.34.1
