72 lines
1.9 KiB
Diff
72 lines
1.9 KiB
Diff
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From 0c017aaa955dba62968a7cef3289a04e2823936d Mon Sep 17 00:00:00 2001
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From: Samuel Holland <samuel@sholland.org>
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Date: Thu, 6 Feb 2020 23:49:27 -0600
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Subject: [PATCH 110/351] arm64: dts: allwinner: pinephone: Add support for
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Bluetooth audio
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The PinePhone has a Bluetooth chip with its PCM interface connected to
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AIF3. Add the DAI link so headeset audio can be routed in hardware.
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Even though the link is mono, configuring the link for 2 slots is
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required for compatibility with AIF2, which uses a single 32-bit slot,
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and which shares its clock dividers with AIF3. Using equal clock
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frequencies allows the modem and headset to be used at the same time.
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Signed-off-by: Samuel Holland <samuel@sholland.org>
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---
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.../dts/allwinner/sun50i-a64-pinephone.dtsi | 24 +++++++++++++++++++
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1 file changed, 24 insertions(+)
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diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
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index a406db735b5e..92e1a2892fe8 100644
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--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
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+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
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@@ -174,6 +174,11 @@ bat: battery {
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<0xdf 98>;
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};
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+ bt_sco_codec: bt-sco-codec {
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+ #sound-dai-cells = <1>;
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+ compatible = "linux,bt-sco";
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+ };
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+
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chosen {
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stdout-path = "serial0:115200n8";
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};
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@@ -287,6 +292,8 @@ sgm3140_flash: led {
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};
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&codec {
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&aif3_pins>;
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status = "okay";
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};
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@@ -759,6 +766,23 @@ &sound {
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"MIC1", "Internal Microphone",
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"Headset Microphone", "HBIAS",
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"MIC2", "Headset Microphone";
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+
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+ simple-audio-card,dai-link@2 {
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+ format = "dsp_a";
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+ frame-master = <&link2_codec>;
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+ bitclock-master = <&link2_codec>;
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+ bitclock-inversion;
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+
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+ link2_cpu: cpu {
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+ sound-dai = <&bt_sco_codec 0>;
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+ };
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+
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+ link2_codec: codec {
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+ sound-dai = <&codec 2>;
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+ dai-tdm-slot-num = <2>;
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+ dai-tdm-slot-width = <16>;
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+ };
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+ };
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};
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&uart0 {
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--
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2.34.0
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