linux-kernel - [PATCH v30 18/30] ASoC: dt-bindings: Update example for enabling USB offload on SM8250

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Message-ID: <20241106193413.1730413-19-quic_wcheng@quicinc.com>
Date: Wed, 6 Nov 2024 11:34:01 -0800
From: Wesley Cheng <quic_wcheng@...cinc.com>
To: <srinivas.kandagatla@...aro.org>, <mathias.nyman@...el.com>,
        <perex@...ex.cz>, <conor+dt@...nel.org>, <dmitry.torokhov@...il.com>,
        <corbet@....net>, <broonie@...nel.org>, <lgirdwood@...il.com>,
        <krzk+dt@...nel.org>, <pierre-louis.bossart@...ux.intel.com>,
        <Thinh.Nguyen@...opsys.com>, <tiwai@...e.com>, <robh@...nel.org>,
        <gregkh@...uxfoundation.org>
CC: <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-sound@...r.kernel.org>, <linux-usb@...r.kernel.org>,
        <linux-input@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
        <linux-doc@...r.kernel.org>, Wesley Cheng <quic_wcheng@...cinc.com>
Subject: [PATCH v30 18/30] ASoC: dt-bindings: Update example for enabling USB offload on SM8250

Add an example on enabling of USB offload for the Q6DSP.  The routing can
be done by the mixer, which can pass the multimedia stream to the USB
backend.

Acked-by: Rob Herring <robh@...nel.org>
Signed-off-by: Wesley Cheng <quic_wcheng@...cinc.com>
---
 .../devicetree/bindings/sound/qcom,sm8250.yaml    | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/qcom,sm8250.yaml b/Documentation/devicetree/bindings/sound/qcom,sm8250.yaml
index 2e2e01493a5f..884244b6b342 100644
--- a/Documentation/devicetree/bindings/sound/qcom,sm8250.yaml
+++ b/Documentation/devicetree/bindings/sound/qcom,sm8250.yaml
@@ -189,4 +189,19 @@ examples:
                 sound-dai = <&vamacro 0>;
             };
         };
+
+        usb-dai-link {
+            link-name = "USB Playback";
+            cpu {
+                sound-dai = <&q6afedai USB_RX>;
+            };
+
+            codec {
+                sound-dai = <&usbdai USB_RX>;
+            };
+
+            platform {
+                sound-dai = <&q6routing>;
+            };
+        };
     };