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Date: Mon, 6 Jun 2022 21:19:07 +0200
From: Martin Povišer <povik+lin@...ebit.org>
To: Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>
Cc: Martin Povišer <povik+lin@...ebit.org>,
alsa-devel@...a-project.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, Mark Kettenis <kettenis@...nbsd.org>,
Hector Martin <marcan@...can.st>,
Sven Peter <sven@...npeter.dev>, asahi@...ts.linux.dev
Subject: [RFC PATCH v2 2/5] dt-bindings: sound: Add Apple Macs sound peripherals
Add binding for Apple Silicon Macs' machine-level integration of sound
peripherals.
Signed-off-by: Martin Povišer <povik+lin@...ebit.org>
---
.../bindings/sound/apple,macaudio.yaml | 157 ++++++++++++++++++
1 file changed, 157 insertions(+)
create mode 100644 Documentation/devicetree/bindings/sound/apple,macaudio.yaml
diff --git a/Documentation/devicetree/bindings/sound/apple,macaudio.yaml b/Documentation/devicetree/bindings/sound/apple,macaudio.yaml
new file mode 100644
index 000000000000..f7c12697beab
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/apple,macaudio.yaml
@@ -0,0 +1,157 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/apple,macaudio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Apple Silicon Macs integrated sound peripherals
+
+description: |
+ This binding represents the overall machine-level integration of sound
+ peripherals on 'Apple Silicon' machines by Apple.
+
+maintainers:
+ - Martin Povišer <povik+lin@...ebit.org>
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - apple,j274-macaudio
+ - apple,j293-macaudio
+ - apple,j314-macaudio
+ - const: apple,macaudio
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ model:
+ description: |
+ Model name for presentation to users
+ $ref: /schemas/types.yaml#/definitions/string
+
+patternProperties:
+ "^dai-link(@[0-9a-f]+)?$":
+ description: |
+ Node for each sound peripheral such as the speaker array, headphones jack,
+ or microphone.
+ type: object
+ properties:
+ reg:
+ maxItems: 1
+
+ link-name:
+ description: |
+ Name for the peripheral, expecting 'Speaker' or 'Speakers' if this is
+ the speaker array.
+ $ref: /schemas/types.yaml#/definitions/string
+
+ cpu:
+ type: object
+ properties:
+ sound-dai:
+ description: |
+ DAI list with CPU-side I2S ports involved in this peripheral.
+ minItems: 1
+ maxItems: 2
+ required:
+ - sound-dai
+
+ codec:
+ type: object
+ properties:
+ sound-dai:
+ description: |
+ DAI list with the CODEC-side DAIs connected to the above CPU-side
+ DAIs and involved in this sound peripheral.
+
+ The list is in left/right order if applicable. If there are more
+ than one CPU-side DAIs (there can be two), the CODECs must be
+ listed first those connected to the first CPU, then those
+ connected to the second.
+
+ In addition, on some machines with many speaker codecs, the CODECs
+ are listed in this fixed order:
+
+ J293: Left Front, Left Rear, Right Front, Right Rear
+ J314: Left Woofer 1, Left Tweeter, Left Woofer 2,
+ Right Woofer 1, Right Tweeter, Right Woofer 2
+ minItems: 1
+ maxItems: 8
+ required:
+ - sound-dai
+
+ required:
+ - reg
+ - cpu
+ - codec
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - model
+
+additionalProperties: false
+
+examples:
+ - |
+ mca: mca@...00000 {
+ compatible = "apple,t6000-mca", "apple,mca";
+ reg = <0x9b600000 0x10000>,
+ <0x9b500000 0x20000>;
+
+ clocks = <&nco 0>, <&nco 1>, <&nco 2>, <&nco 3>;
+ power-domains = <&ps_audio_p>, <&ps_mca0>, <&ps_mca1>,
+ <&ps_mca2>, <&ps_mca3>;
+ dmas = <&admac 0>, <&admac 1>, <&admac 2>, <&admac 3>,
+ <&admac 4>, <&admac 5>, <&admac 6>, <&admac 7>,
+ <&admac 8>, <&admac 9>, <&admac 10>, <&admac 11>,
+ <&admac 12>, <&admac 13>, <&admac 14>, <&admac 15>;
+ dma-names = "tx0a", "rx0a", "tx0b", "rx0b",
+ "tx1a", "rx1a", "tx1b", "rx1b",
+ "tx2a", "rx2a", "tx2b", "rx2b",
+ "tx3a", "rx3a", "tx3b", "rx3b";
+
+ #sound-dai-cells = <1>;
+ };
+
+ sound {
+ compatible = "apple,j314-macaudio", "apple,macaudio";
+ model = "MacBook Pro J314 integrated audio";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ dai-link@0 {
+ reg = <0>;
+ link-name = "Speakers";
+
+ cpu {
+ sound-dai = <&mca 0>, <&mca 1>;
+ };
+ codec {
+ sound-dai = <&speaker_left_woof1>,
+ <&speaker_left_tweet>,
+ <&speaker_left_woof2>,
+ <&speaker_right_woof1>,
+ <&speaker_right_tweet>,
+ <&speaker_right_woof2>;
+ };
+ };
+
+ dai-link@1 {
+ reg = <1>;
+ link-name = "Headphones Jack";
+
+ cpu {
+ sound-dai = <&mca 2>;
+ };
+ codec {
+ sound-dai = <&jack_codec>;
+ };
+ };
+ };
--
2.33.0
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