From: Axel Haslam <ahaslam@xxxxxxxxxxxx>
Depending on board layout, the ad57xx may need control of reset, clear,
and ldac pins by the host driver. Add optional bindings for these gpios.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
Signed-off-by: Axel Haslam <ahaslam@xxxxxxxxxxxx>
---
.../devicetree/bindings/iio/dac/adi,ad5791.yaml | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5791.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5791.yaml
index c81285d84db7..fe664378c966 100644
--- a/Documentation/devicetree/bindings/iio/dac/adi,ad5791.yaml
+++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5791.yaml
@@ -31,6 +31,17 @@ properties:
gain of two configuration.
type: boolean
+ reset-gpios:
+ maxItems: 1
+
+ clear-gpios:
+ maxItems: 1
+
+ ldac-gpios:
+ description:
+ LDAC pin to be used as a hardware trigger to update the DAC channels.
+ maxItems: 1
+
required:
- compatible
- reg
@@ -44,6 +55,7 @@ unevaluatedProperties: false
examples:
- |
+ #include <dt-bindings/gpio/gpio.h>
spi {
#address-cells = <1>;
#size-cells = <0>;
@@ -53,6 +65,9 @@ examples:
reg = <0>;
vss-supply = <&dac_vss>;
vdd-supply = <&dac_vdd>;
+ reset-gpios = <&gpio_bd 16 GPIO_ACTIVE_LOW>;
+ clear-gpios = <&gpio_bd 17 GPIO_ACTIVE_LOW>;
+ ldac-gpios = <&gpio_bd 18 GPIO_ACTIVE_HIGH>;
};
};
...
--
2.34.1
