From ec5a6dcc040fdd8fd25a04c069aa347af2a2f0bc Mon Sep 17 00:00:00 2001 From: Samuel Holland Date: Wed, 5 Feb 2020 23:14:27 -0600 Subject: 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 4f471e80dcd8..76e55a0e415a 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 */ @@ -316,7 +322,7 @@ vibrator { &codec { pinctrl-names = "default"; - pinctrl-0 = <&aif3_pins>; + pinctrl-0 = <&aif2_pins>, <&aif3_pins>; status = "okay"; }; @@ -799,6 +805,23 @@ &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