This commit adds the necessary Device Tree information to enable audio support on the Armada 385 DB platform. In details it:
* Instantiates the CS42L51 audio codec on the I2C0 bus
* Adds simple-card DT binding for audio on Armada 385 DB
* Adds description for both analog I2S and S/PDIF I/O
Signed-off-by: Marcin Wojtas mw@semihalf.com --- arch/arm/boot/dts/armada-388-db.dts | 69 +++++++++++++++++++++++++++++++++++++ 1 file changed, 69 insertions(+)
diff --git a/arch/arm/boot/dts/armada-388-db.dts b/arch/arm/boot/dts/armada-388-db.dts index 16512ef..bf5d9a7 100644 --- a/arch/arm/boot/dts/armada-388-db.dts +++ b/arch/arm/boot/dts/armada-388-db.dts @@ -82,6 +82,11 @@ i2c@11000 { status = "okay"; clock-frequency = <100000>; + audio_codec: audio-codec@4a { + #sound-dai-cells = <0>; + compatible = "cirrus,cs42l51"; + reg = <0x4a>; + }; };
i2c@11100 { @@ -158,6 +163,12 @@ no-1-8-v; };
+ audio-controller@e8000 { + pinctrl-0 = <&i2s_pins>; + pinctrl-names = "default"; + status = "okay"; + }; + usb3@f0000 { status = "okay"; }; @@ -183,4 +194,62 @@ }; }; }; + + sound { + compatible = "simple-audio-card"; + simple-audio-card,name = "Armada 385 DB Audio"; + simple-audio-card,mclk-fs = <256>; + simple-audio-card,widgets = + "Headphone", "Out Jack", + "Line", "In Jack"; + simple-audio-card,routing = + "Out Jack", "HPL", + "Out Jack", "HPR", + "AIN1L", "In Jack", + "AIN1R", "In Jack"; + status = "okay"; + + simple-audio-card,dai-link@0 { + format = "i2s"; + cpu { + sound-dai = <&audio_controller 0>; + }; + + codec { + sound-dai = <&audio_codec>; + }; + }; + + simple-audio-card,dai-link@1 { + format = "i2s"; + cpu { + sound-dai = <&audio_controller 1>; + }; + + codec { + sound-dai = <&spdif_out>; + }; + }; + + simple-audio-card,dai-link@2 { + format = "i2s"; + cpu { + sound-dai = <&audio_controller 1>; + }; + + codec { + sound-dai = <&spdif_in>; + }; + }; + }; + + spdif_out: spdif-out { + #sound-dai-cells = <0>; + compatible = "linux,spdif-dit"; + }; + + spdif_in: spdif-in { + #sound-dai-cells = <0>; + compatible = "linux,spdif-dir"; + }; };