[PATCH v2 1/2] dt-bindings: iio: dac: Add DAC8163

[Lukas Metz <lukas.metz@gmx.net>]

Add device tree binding for the Texas Instruments DAC8163 family
including the DAC7562, DAC7563, DAC8162, DAC8163, DAC8562 and DAC8563.

Signed-off-by: Lukas Metz <lukas.metz@gmx.net>
---
 .../devicetree/bindings/iio/dac/ti,dac8163.yaml    | 85 ++++++++++++++++++++++
 MAINTAINERS                                        |  6 ++
 2 files changed, 91 insertions(+)

diff --git a/Documentation/devicetree/bindings/iio/dac/ti,dac8163.yaml b/Documentation/devicetree/bindings/iio/dac/ti,dac8163.yaml
new file mode 100644
index 000000000000..533cc7327c2b
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/dac/ti,dac8163.yaml
@@ -0,0 +1,85 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/dac/ti,dac8163.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments DAC8163 family of DACs
+
+description:
+  The DAC756x, DAC816x, and DAC856x devices are low-power, voltage-output,
+  dual-channel, 12-, 14-, and 16-bit digital-to-analog converters (DACs),
+  respectively. These devices include a 2.5-V, 4-ppm/°C internal
+  reference, giving a full-scale output voltage range of 2.5 V or 5 V.
+  The sync pin on the device acts as chip-select pin.
+
+maintainers:
+  - Lukas Metz <lukas.metz@gmx.net>
+
+properties:
+  compatible:
+    enum:
+      - ti,dac7562
+      - ti,dac7563
+      - ti,dac8162
+      - ti,dac8163
+      - ti,dac8562
+      - ti,dac8563
+
+  spi-rx-bus-width:
+    items:
+      - const: 0
+
+  spi-max-frequency:
+    maximum: 50000000
+
+  spi-cpha: true
+
+  reg:
+    maxItems: 1
+
+  avdd-supply: true
+
+  clr-gpios:
+    description:
+      The device registers are reset when this pin is asserted. The output is
+      set to zero (xxx2 devices) or mid-scale (xxx3 devices).
+    maxItems: 1
+
+  ldac-gpios:
+    description:
+      Pin needs to be asserted permanently when updating the DAC synchronously.
+    maxItems: 1
+
+  vrefin-supply:
+    description:
+      External reference voltage supply for scaling. When no vrefin-supply
+      is present the internal voltage reference is used.
+
+required:
+  - compatible
+  - reg
+  - spi-cpha
+  - avdd-supply
+
+allOf:
+  - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        dac@1 {
+            compatible = "ti,dac8163";
+            reg = <0x1>; /* CS1 */
+            spi-cpha;
+            ldac-gpios = <&gpiog 8 GPIO_ACTIVE_LOW>;
+            avdd-supply = <&avdd_3v3>;
+        };
+    };
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index d238590a31f2..314f235332f5 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -26394,6 +26394,12 @@ S:	Odd Fixes
 F:	drivers/clk/ti/
 F:	include/linux/clk/ti.h
 
+TI DAC8163 DAC DRIVER
+M:	Lukas Metz <lukas.metz@gmx.net>
+L:	linux-iio@vger.kernel.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/iio/dac/ti,dac8163.yaml
+
 TI DATA TRANSFORM AND HASHING ENGINE (DTHE) V2 CRYPTO DRIVER
 M:	T Pratham <t-pratham@ti.com>
 L:	linux-crypto@vger.kernel.org

-- 
2.43.0