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Add support for Allo Piano DAC 2.1 plus add-on board for Raspberry Pi. #1925

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Merged
merged 1 commit into from
Mar 28, 2017
Merged

Add support for Allo Piano DAC 2.1 plus add-on board for Raspberry Pi. #1925

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1 change: 1 addition & 0 deletions arch/arm/boot/dts/overlays/Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -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 \
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18 changes: 18 additions & 0 deletions arch/arm/boot/dts/overlays/README
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Expand Up @@ -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
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51 changes: 51 additions & 0 deletions arch/arm/boot/dts/overlays/allo-piano-dac-plus-pcm512x-audio-overlay.dts
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@@ -0,0 +1,51 @@
// 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?";
};
};
7 changes: 7 additions & 0 deletions sound/soc/bcm/Kconfig
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Expand Up @@ -154,6 +154,13 @@ 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
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2 changes: 2 additions & 0 deletions sound/soc/bcm/Makefile
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Expand Up @@ -28,6 +28,7 @@ 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

Expand All @@ -50,5 +51,6 @@ 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
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