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Message-ID: <20231119-surpass-cheer-9dc3838b766f@spud>
Date: Sun, 19 Nov 2023 13:47:34 +0000
From: Conor Dooley <conor@...nel.org>
To: Anshul Dalal <anshulusr@...il.com>
Cc: linux-kernel@...r.kernel.org, linux-iio@...r.kernel.org,
devicetree@...r.kernel.org, Conor Dooley <conor+dt@...nel.org>,
Lars-Peter Clausen <lars@...afoo.de>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
linux-kernel-mentees@...ts.linuxfoundation.org,
Jonathan Cameron <jic23@...nel.org>,
Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH 1/2] dt-bindings: iio: dac: add MCP4821
On Fri, Nov 17, 2023 at 01:00:37PM +0530, Anshul Dalal wrote:
> 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@...il.com>
Reviewed-by: Conor Dooley <conor.dooley@...rochip.com>
Cheers,
Conor.
> ---
> .../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@...il.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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