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From: Rob Herring <robh@kernel.org>
To: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Cc: broonie@kernel.org, devicetree@vger.kernel.org, perex@perex.cz,
	alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org,
	lgirdwood@gmail.com
Subject: Re: [PATCH v4 4/9] ASoC: dt-bindings: wcd938x-sdw: add bindings for wcd938x-sdw
Date: Thu, 15 Apr 2021 11:39:12 -0500
Message-ID: <20210415163912.GA1524320@robh.at.kernel.org> (raw)
In-Reply-To: <20210414154845.21964-5-srinivas.kandagatla@linaro.org>

On Wed, Apr 14, 2021 at 04:48:40PM +0100, Srinivas Kandagatla wrote:
> Qualcomm WCD9380/WCD9385 Codec is a standalone Hi-Fi audio codec IC
> connected over SoundWire. This device has two SoundWire devices RX and
> TX respectively. This bindings is for those slave devices on WCD9380/WCD9385.
> 
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
> ---
>  .../bindings/sound/qcom,wcd938x-sdw.yaml      | 61 +++++++++++++++++++
>  1 file changed, 61 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/sound/qcom,wcd938x-sdw.yaml
> 
> diff --git a/Documentation/devicetree/bindings/sound/qcom,wcd938x-sdw.yaml b/Documentation/devicetree/bindings/sound/qcom,wcd938x-sdw.yaml
> new file mode 100644
> index 000000000000..fff33c65491b
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/sound/qcom,wcd938x-sdw.yaml
> @@ -0,0 +1,61 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/sound/qcom,wcd938x-sdw.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Bindings for Qualcomm SoundWire Slave devices on WCD9380/WCD9385
> +
> +maintainers:
> +  - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
> +
> +description: |
> +  Qualcomm WCD9380/WCD9385 Codec is a standalone Hi-Fi audio codec IC.
> +  It has RX and TX Soundwire slave devices. This bindings is for the
> +  slave devices.
> +
> +properties:
> +  compatible:
> +    const: sdw20217010d00
> +
> +  reg:
> +    maxItems: 1
> +
> +  qcom,direction:
> +    description: direction of the SoundWire device instance
> +    enum:
> +      - rx
> +      - tx

Was thinking these were some established bus properties...

This would just be implied by the 'reg' property index. You could define 
'reg-names' too I guess.

> +
> +  qcom,port-mapping:
> +    description: |
> +      Specifies static port mapping between slave and master ports.
> +      In the order of slave port index.
> +    $ref: /schemas/types.yaml#/definitions/uint32-array
> +    minItems: 4
> +    maxItems: 5

qcom,rx-port-mapping and qcom,tx-port-mapping?

Or keep a single property and the driver knows how many slave ports for 
each direction. IOW, an array of 9 with first 4 entries for tx and last 
5 for rx.

> +
> +required:
> +  - compatible
> +  - reg
> +  - qcom,direction
> +  - qcom,port-mapping
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    soundwire@3230000 {
> +        #address-cells = <2>;
> +        #size-cells = <0>;
> +        reg = <0x03230000 0x2000>;
> +
> +        codec@0,3 {
> +            compatible = "sdw20217010d00";
> +            reg  = <0 3>;
> +            qcom,direction = "tx";
> +            qcom,port-mapping = <2 3 4 5>;
> +        };
> +    };
> +
> +...
> -- 
> 2.21.0
> 

  reply index

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-14 15:48 [PATCH v4 0/9] ASoC: codecs: add wcd938x support Srinivas Kandagatla
2021-04-14 15:48 ` [PATCH v4 1/9] ASoC: dt-bindings: wcd938x: add bindings for wcd938x Srinivas Kandagatla
2021-04-15 16:29   ` Rob Herring
2021-04-15 16:53     ` Srinivas Kandagatla
2021-04-30  8:20       ` Srinivas Kandagatla
2021-04-15 17:06     ` Srinivas Kandagatla
2021-04-14 15:48 ` [PATCH v4 2/9] ASoC: codecs: wcd-clsh: add new version support Srinivas Kandagatla
2021-04-14 15:48 ` [PATCH v4 3/9] ASoC: codecs: wcd938x: add basic driver Srinivas Kandagatla
2021-04-15  1:15   ` kernel test robot
2021-04-15  2:54   ` kernel test robot
2021-04-14 15:48 ` [PATCH v4 4/9] ASoC: dt-bindings: wcd938x-sdw: add bindings for wcd938x-sdw Srinivas Kandagatla
2021-04-15 16:39   ` Rob Herring [this message]
2021-04-15 16:57     ` Srinivas Kandagatla
2021-04-14 15:48 ` [PATCH v4 5/9] ASoC: codecs: wcd938x-sdw: add SoundWire driver Srinivas Kandagatla
2021-04-14 15:48 ` [PATCH v4 6/9] ASoC: codecs: wcd938x: add basic controls Srinivas Kandagatla
2021-04-14 15:48 ` [PATCH v4 7/9] ASoC: codecs: wcd938x: add playback dapm widgets Srinivas Kandagatla
2021-04-14 15:48 ` [PATCH v4 8/9] ASoC: codecs: wcd938x: add capture " Srinivas Kandagatla
2021-04-14 15:48 ` [PATCH v4 9/9] ASoC: codecs: wcd938x: add audio routing Srinivas Kandagatla

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