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72 lines
2.0 KiB
Diff
72 lines
2.0 KiB
Diff
From ec5a6dcc040fdd8fd25a04c069aa347af2a2f0bc Mon Sep 17 00:00:00 2001
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From: Samuel Holland <samuel@sholland.org>
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Date: Wed, 5 Feb 2020 23:14:27 -0600
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Subject: arm64: dts: sun50i-a64-pinephone: Add support for modem audio
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The PinePhone has a Quectel EG25-G modem (a variant of the EC25) with
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its PCM interface connected to AIF2. Add the DAI link so call audio can
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be routed in hardware.
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The modem supports two fixed sample rates, and one fixed word size, with
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a variable BCLK frequency. Use the minimum supported BCLK frequency,
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which corresponds to a slot width of 32 bits.
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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 | 25 ++++++++++++++++++-
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1 file changed, 24 insertions(+), 1 deletion(-)
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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 4f471e80dcd8..76e55a0e415a 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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@@ -188,6 +188,12 @@ chosen {
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stdout-path = "serial0:115200n8";
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};
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+ ec25_codec: ec25-codec {
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+ #sound-dai-cells = <1>;
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+ compatible = "quectel,ec25";
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+ sound-name-prefix = "Modem";
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+ };
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+
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i2c_csi: i2c-csi {
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compatible = "i2c-gpio";
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sda-gpios = <&pio 4 13 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; /* PE13 */
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@@ -316,7 +322,7 @@ vibrator {
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&codec {
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pinctrl-names = "default";
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- pinctrl-0 = <&aif3_pins>;
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+ pinctrl-0 = <&aif2_pins>, <&aif3_pins>;
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status = "okay";
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};
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@@ -799,6 +805,23 @@ &sound {
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"Headset Microphone", "HBIAS",
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"MIC2", "Headset Microphone";
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+ simple-audio-card,dai-link@1 {
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+ format = "dsp_a";
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+ frame-master = <&link1_codec>;
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+ bitclock-master = <&link1_codec>;
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+ bitclock-inversion;
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+
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+ link1_cpu: cpu {
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+ sound-dai = <&ec25_codec 0>;
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+ };
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+
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+ link1_codec: codec {
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+ sound-dai = <&codec 1>;
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+ dai-tdm-slot-num = <1>;
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+ dai-tdm-slot-width = <32>;
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+ };
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+ };
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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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--
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2.35.3
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