From f90a5c3f112be1453cecf8bba5517376be56159a Mon Sep 17 00:00:00 2001 From: Samuel Holland Date: Wed, 5 Feb 2020 23:14:27 -0600 Subject: [PATCH 097/389] arm64: dts: sun50i-a64-pinephone: Add support for modem audio The PinePhone has a Quectel EG25-G modem (a variant of the EC25) with its PCM interface connected to AIF2. Add the DAI link so call audio can be routed in hardware. The modem supports two fixed sample rates, and one fixed word size, with a variable BCLK frequency. Use the minimum supported BCLK frequency, which corresponds to a slot width of 32 bits. Signed-off-by: Samuel Holland --- .../dts/allwinner/sun50i-a64-pinephone.dtsi | 25 ++++++++++++++++++- 1 file changed, 24 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi index 19c712ab85aa..652ef6d44e63 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi @@ -188,6 +188,12 @@ chosen { stdout-path = "serial0:115200n8"; }; + ec25_codec: ec25-codec { + #sound-dai-cells = <1>; + compatible = "quectel,ec25"; + sound-name-prefix = "Modem"; + }; + i2c_csi: i2c-csi { compatible = "i2c-gpio"; sda-gpios = <&pio 4 13 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; /* PE13 */ @@ -306,7 +312,7 @@ vibrator { &codec { pinctrl-names = "default"; - pinctrl-0 = <&aif3_pins>; + pinctrl-0 = <&aif2_pins>, <&aif3_pins>; status = "okay"; }; @@ -771,6 +777,23 @@ &sound { "Headset Microphone", "HBIAS", "MIC2", "Headset Microphone"; + simple-audio-card,dai-link@1 { + format = "dsp_a"; + frame-master = <&link1_codec>; + bitclock-master = <&link1_codec>; + bitclock-inversion; + + link1_cpu: cpu { + sound-dai = <&ec25_codec 0>; + }; + + link1_codec: codec { + sound-dai = <&codec 1>; + dai-tdm-slot-num = <1>; + dai-tdm-slot-width = <32>; + }; + }; + simple-audio-card,dai-link@2 { format = "dsp_a"; frame-master = <&link2_codec>; -- 2.35.3