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Subject[PATCH 1/2] dt-bindings: iio: dac: add MCP4821
Date
Adds support for MCP48xx series of DACs.

Datasheet:
[MCP48x1] https://ww1.microchip.com/downloads/en/DeviceDoc/22244B.pdf
[MCP48x2] https://ww1.microchip.com/downloads/en/DeviceDoc/20002249B.pdf

Signed-off-by: Anshul Dalal <anshulusr@gmail.com>
---
.../bindings/iio/dac/microchip,mcp4821.yaml | 63 +++++++++++++++++++
1 file changed, 63 insertions(+)
create mode 100644 Documentation/devicetree/bindings/iio/dac/microchip,mcp4821.yaml

diff --git a/Documentation/devicetree/bindings/iio/dac/microchip,mcp4821.yaml b/Documentation/devicetree/bindings/iio/dac/microchip,mcp4821.yaml
new file mode 100644
index 000000000000..904de15300bd
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/dac/microchip,mcp4821.yaml
@@ -0,0 +1,63 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/dac/microchip,mcp4821.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip MCP4821 and similar DACs
+
+description: |
+ Supports MCP48x1 (single channel) and MCP48x2 (dual channel) series of DACs.
+ Device supports simplex communication over SPI in Mode 0,1 and Mode 1,1.
+
+ +---------+--------------+-------------+
+ | Device | Resolution | Channels |
+ |---------|--------------|-------------|
+ | MCP4801 | 8-bit | 1 |
+ | MCP4811 | 10-bit | 1 |
+ | MCP4821 | 12-bit | 1 |
+ | MCP4802 | 8-bit | 2 |
+ | MCP4812 | 10-bit | 2 |
+ | MCP4822 | 12-bit | 2 |
+ +---------+--------------+-------------+
+
+ Datasheet:
+ MCP48x1: https://ww1.microchip.com/downloads/en/DeviceDoc/22244B.pdf
+ MCP48x2: https://ww1.microchip.com/downloads/en/DeviceDoc/20002249B.pdf
+
+maintainers:
+ - Anshul Dalal <anshulusr@gmail.com>
+
+properties:
+ compatible:
+ enum:
+ - microchip,mcp4801
+ - microchip,mcp4811
+ - microchip,mcp4821
+ - microchip,mcp4802
+ - microchip,mcp4812
+ - microchip,mcp4822
+
+ reg:
+ maxItems: 1
+
+ vdd-supply: true
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ dac@0 {
+ compatible = "microchip,mcp4821";
+ reg = <0>;
+ vdd-supply = <&vdd_regulator>;
+ };
+ };
--
2.42.1
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