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From: Padmanabhan Rajanbabu
To: lgirdwood@gmail.com, broonie@kernel.org, robh+dt@kernel.org,
krzysztof.kozlowski+dt@linaro.org, s.nawrocki@samsung.com,
perex@perex.cz, tiwai@suse.com, pankaj.dubey@samsung.com,
alim.akhtar@samsung.com, rcsekar@samsung.com,
aswani.reddy@samsung.com
Cc: alsa-devel@alsa-project.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org,
Padmanabhan Rajanbabu
Subject: [PATCH 3/6] dt-bindings: sound: Add sound card bindings for Tesla
FSD
Date: Fri, 14 Oct 2022 15:51:48 +0530
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Add dt-binding reference document to configure the DAI link for Tesla
FSD sound card driver.
Signed-off-by: Padmanabhan Rajanbabu
---
.../bindings/sound/tesla,fsd-card.yaml | 158 ++++++++++++++++++
1 file changed, 158 insertions(+)
create mode 100644 Documentation/devicetree/bindings/sound/tesla,fsd-card.yaml
diff --git a/Documentation/devicetree/bindings/sound/tesla,fsd-card.yaml b/Documentation/devicetree/bindings/sound/tesla,fsd-card.yaml
new file mode 100644
index 000000000000..4bd590f4ee27
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/tesla,fsd-card.yaml
@@ -0,0 +1,158 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright 2022 Samsung Electronics Co. Ltd.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/tesla,fsd-card.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Tesla FSD ASoC sound card driver
+
+maintainers:
+ - Padmanabhan Rajanbabu
+
+description: |
+ This binding describes the node properties and essential DT entries of FSD
+ SoC sound card node
+
+select: false
+
+properties:
+ compatible:
+ enum:
+ - tesla,fsd-sndcard
+
+ model:
+ description: Describes the Name of the sound card
+ $ref: /schemas/types.yaml#/definitions/string
+
+ widgets:
+ description: A list of DAPM widgets in the sound card. Each entry is a pair
+ of strings, the first being the widget name and the second being the
+ widget alias
+ $ref: /schemas/types.yaml#/definitions/string-array
+
+ audio-routing:
+ description: A list of the connections between audio components. Each entry
+ is a pair of strings, the first being the connection's sink, the second
+ being the connection's source
+ $ref: /schemas/types.yaml#/definitions/string-array
+
+ dai-tdm-slot-num:
+ description: Enables TDM mode and specifies the number of TDM slots to be
+ enabled
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [0, 1, 2, 3, 4, 5, 6, 7, 8]
+ default: 2
+
+ dai-tdm-slot-width:
+ description: Specifies the slot width of each TDm slot enabled
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [8, 16, 24]
+ default: 16
+
+ dai-link:
+ description: Holds the DAI link data between CPU, Codec and Platform
+ type: object
+ properties:
+ link-name:
+ description: Specifies the name of the DAI link
+ $ref: /schemas/types.yaml#/definitions/string
+
+ dai-format:
+ description: Specifies the serial data format of CPU DAI
+ $ref: /schemas/types.yaml#/definitions/string
+
+ tesla,bitclock-master:
+ description: Specifies the phandle of bitclock master DAI
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+ tesla,frame-master:
+ description: Specifies the phandle of frameclock master DAI
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+ cpu:
+ description: Holds the CPU DAI node and instance
+ type: object
+ properties:
+ sound-dai:
+ description: Specifies the phandle of CPU DAI node
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+
+ required:
+ - sound-dai
+
+ codec:
+ description: Holds the Codec DAI node and instance
+ type: object
+ properties:
+ sound-dai:
+ description: Specifies the phandle of Codec DAI node
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+
+ required:
+ - sound-dai
+
+ required:
+ - link-name
+ - dai-format
+ - tesla,bitclock-master
+ - tesla,frame-master
+ - cpu
+
+dependencies:
+ dai-tdm-slot-width: [ 'dai-tdm-slot-num' ]
+
+required:
+ - compatible
+ - model
+ - dai-link
+
+additionalProperties: false
+
+examples:
+ - |
+ sound {
+ compatible = "tesla,fsd-sndcard";
+ status = "disabled";
+ model = "fsd-i2s";
+
+ primary-dai-link-0 {
+ link-name = "fsd-primary-0";
+ dai-format = "i2s";
+ tesla,bitclock-master = <&tdm_0>;
+ tesla,frame-master = <&tdm_0>;
+ cpu {
+ sound-dai = <&tdm_0 0>;
+ };
+ };
+
+ secondary-dai-link-0 {
+ link-name = "fsd-secondary-0";
+ dai-format = "i2s";
+ tesla,bitclock-master = <&tdm_0>;
+ tesla,frame-master = <&tdm_0>;
+ cpu {
+ sound-dai = <&tdm_0 1>;
+ };
+ };
+
+ primary-dai-link-1 {
+ link-name = "fsd-primary-1";
+ dai-format = "i2s";
+ tesla,bitclock-master = <&tdm_1>;
+ tesla,frame-master = <&tdm_1>;
+ cpu {
+ sound-dai = <&tdm_1 0>;
+ };
+ };
+
+ secondary-dai-link-1 {
+ link-name = "fsd-secondary-1";
+ dai-format = "i2s";
+ tesla,bitclock-master = <&tdm_1>;
+ tesla,frame-master = <&tdm_1>;
+ cpu {
+ sound-dai = <&tdm_1 1>;
+ };
+ };
+ };