@@ -59,6 +59,17 @@ properties:
interrupts:
maxItems: 1
+ sync-gpios:
+ description: |
+ Optional GPIO spec for the SYNC pin. The SYNC pin allows synchronization
+ of the digital filters and analog modulators when using multiple AD7192
+ devices. When SYNC is pulled low, it resets the digital filter nodes,
+ filter control logic, calibration control logic, and holds the analog
+ modulator in reset state. Only specify this property if you need to
+ actively control SYNC for multi-device synchronization, otherwise it
+ defaults to HIGH.
+ maxItems: 1
+
aincom-supply:
description: |
AINCOM voltage supply. Analog inputs AINx are referenced to this input
@@ -182,6 +193,8 @@ unevaluatedProperties: false
examples:
- |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
spi {
#address-cells = <1>;
#size-cells = <0>;
@@ -194,8 +207,9 @@ examples:
spi-cpha;
clocks = <&ad7192_mclk>;
clock-names = "mclk";
- interrupts = <25 0x2>;
+ interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
interrupt-parent = <&gpio>;
+ sync-gpios = <&gpio0 26 GPIO_ACTIVE_HIGH>;
aincom-supply = <&aincom>;
dvdd-supply = <&dvdd>;
avdd-supply = <&avdd>;
@@ -208,6 +222,7 @@ examples:
};
};
- |
+ #include <dt-bindings/interrupt-controller/irq.h>
spi {
#address-cells = <1>;
#size-cells = <0>;
@@ -223,7 +238,7 @@ examples:
spi-cpol;
spi-cpha;
#clock-cells = <0>;
- interrupts = <25 0x2>;
+ interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
interrupt-parent = <&gpio>;
aincom-supply = <&aincom>;
dvdd-supply = <&dvdd>;
Add support for the SYNC pin GPIO specification in the devicetree bindings. This pin allows synchronization of digital filters and analog modulators when using multiple devices. Update the examples to demonstrate the usage of the new property. Also update the interrupt type in the examples to use the proper IRQ_TYPE_EDGE_FALLING macro instead of the raw value. Signed-off-by: Alisa-Dariana Roman <alisa.roman@analog.com> --- .../bindings/iio/adc/adi,ad7192.yaml | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-)