Commit 1994d792 authored by Raashid Muhammed's avatar Raashid Muhammed Committed by Phil Elwell
Browse files

Add support for Allo Piano DAC 2.1 plus add-on board for Raspberry Pi. 



The Piano DAC 2.1 has support for 4 channels with subwoofer.

Signed-off-by: default avatarBaswaraj K <jaikumar@cem-solutions.net>
Reviewed-by: default avatarVijay Kumar B. <vijaykumar@zilogic.com>
Reviewed-by: default avatarRaashid Muhammed <raashidmuhammed@zilogic.com>
parent e62d0170

arch/arm/boot/dts/overlays/Makefile

+1 −0
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@@ -8,6 +8,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \ 
	ads7846.dtbo \

	akkordion-iqdacplus.dtbo \

	allo-piano-dac-pcm512x-audio.dtbo \

	allo-piano-dac-plus-pcm512x-audio.dtbo \

	at86rf233.dtbo \

	audioinjector-addons.dtbo \

	audioinjector-wm8731-audio.dtbo \

arch/arm/boot/dts/overlays/README

+18 −0
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@@ -283,6 +283,24 @@ Params: 24db_digital_gain Allow gain to be applied via the PCM512x codec 
                                that does not result in clipping/distortion!)





Name:   allo-piano-dac-plus-pcm512x-audio

Info:   Configures the Allo Piano DAC (2.1) audio cards.

Load:   dtoverlay=allo-piano-dac-plus-pcm512x-audio,<param>

Params: 24db_digital_gain       Allow gain to be applied via the PCM512x codec

                                Digital volume control.

                                (The default behaviour is that the Digital

                                volume control is limited to a maximum of

                                0dB. ie. it can attenuate but not provide

                                gain. For most users, this will be desired

                                as it will prevent clipping. By appending

                                the 24db_digital_gain parameter, the Digital

                                volume control will allow up to 24dB of

                                gain. If this parameter is enabled, it is the

                                responsibility of the user to ensure that

                                the Digital volume control is set to a value

                                that does not result in clipping/distortion!)





Name:   at86rf233

Info:   Configures the Atmel AT86RF233 802.15.4 low-power WPAN transceiver,

        connected to spi0.0

arch/arm/boot/dts/overlays/allo-piano-dac-plus-pcm512x-audio-overlay.dts

0 → 100644
+51 −0
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// Definitions for Piano DAC

/dts-v1/;

/plugin/;



/ {

	compatible = "brcm,bcm2708";



	fragment@0 {

		target = <&i2s>;

		__overlay__ {

			status = "okay";

		};

	};



	fragment@1 {

		target = <&i2c1>;

		__overlay__ {

			#address-cells = <1>;

			#size-cells = <0>;

			status = "okay";



			pcm5122_4c: pcm5122@4c {

				#sound-dai-cells = <0>;

				compatible = "ti,pcm5122";

				reg = <0x4c>;

				status = "okay";

			};

			pcm5122_4d: pcm5122@4d {

				#sound-dai-cells = <0>;

				compatible = "ti,pcm5122";

				reg = <0x4d>;

				status = "okay";

			};

		};

	};



	fragment@2 {

		target = <&sound>;

		piano_dac: __overlay__ {

			compatible = "allo,piano-dac-plus";

			audio-codec = <&pcm5122_4c &pcm5122_4d>;

			i2s-controller = <&i2s>;

			status = "okay";

		};

	};



	__overrides__ {

		24db_digital_gain =

			<&piano_dac>,"piano,24db_digital_gain?";

	};

};

sound/soc/bcm/Kconfig

+7 −0
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@@ -161,6 +161,13 @@ config SND_BCM2708_SOC_ALLO_PIANO_DAC 
	help

	  Say Y or M if you want to add support for Allo Piano DAC.



config SND_BCM2708_SOC_ALLO_PIANO_DAC_PLUS

	tristate "Support for Allo Piano DAC Plus"

	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S

	select SND_SOC_PCM512x_I2C

	help

	  Say Y or M if you want to add support for Allo Piano DAC Plus.



config SND_BCM2708_SOC_FE_PI_AUDIO

	tristate "Support for Fe-Pi-Audio"

	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S

sound/soc/bcm/Makefile

+2 −0
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@@ -32,6 +32,7 @@ snd-soc-digidac1-soundcard-objs := digidac1-soundcard.o 
snd-soc-dionaudio-loco-objs := dionaudio_loco.o

snd-soc-dionaudio-loco-v2-objs := dionaudio_loco-v2.o

snd-soc-allo-piano-dac-objs := allo-piano-dac.o

snd-soc-allo-piano-dac-plus-objs := allo-piano-dac-plus.o

snd-soc-pisound-objs := pisound.o

snd-soc-fe-pi-audio-objs := fe-pi-audio.o
@@ -56,5 +57,6 @@ obj-$(CONFIG_SND_DIGIDAC1_SOUNDCARD) += snd-soc-digidac1-soundcard.o 
obj-$(CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO) += snd-soc-dionaudio-loco.o

obj-$(CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO_V2) += snd-soc-dionaudio-loco-v2.o

obj-$(CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC) += snd-soc-allo-piano-dac.o

obj-$(CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC_PLUS) += snd-soc-allo-piano-dac-plus.o

obj-$(CONFIG_SND_PISOUND) += snd-soc-pisound.o

obj-$(CONFIG_SND_BCM2708_SOC_FE_PI_AUDIO) += snd-soc-fe-pi-audio.o