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Add support for SuperAudioBoard sound card #2386

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Merged
merged 6 commits into from
Feb 18, 2018
Merged

Add support for SuperAudioBoard sound card #2386

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d7f38ad
Initial commit of SAB using the simple-audio-card driver. Need to te…
whollender Feb 15, 2018
454f35c
SuperAudioBoard driver based on simple-audio-card
whollender Feb 16, 2018
c54e1f6
bcm2709_defconfig - correct order
pelwell Feb 18, 2018
75472bc
bcmrpi_defconfig - correct order
pelwell Feb 18, 2018
ad42d20
Use TABs in the overlay
pelwell Feb 18, 2018
8de5335
bcmrpi3_defconfig: correct order
pelwell Feb 18, 2018
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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 @@ -118,6 +118,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
spi2-1cs.dtbo \
spi2-2cs.dtbo \
spi2-3cs.dtbo \
superaudioboard.dtbo \
tinylcd35.dtbo \
uart0.dtbo \
uart1.dtbo \
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6 changes: 6 additions & 0 deletions arch/arm/boot/dts/overlays/README
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Expand Up @@ -1658,6 +1658,12 @@ Params: cs0_pin GPIO pin for CS0 (default 43 - BCM SPI2_CE0).
is 'okay' or enabled).


Name: superaudioboard
Info: Configures the SuperAudioBoard sound card
Load: dtoverlay=superaudioboard,<param>=<val>
Params: gpiopin GPIO pin for codec reset


Name: tinylcd35
Info: 3.5" Color TFT Display by www.tinylcd.com
Options: Touch, RTC, keypad
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73 changes: 73 additions & 0 deletions arch/arm/boot/dts/overlays/superaudioboard-overlay.dts
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Original file line number Diff line number Diff line change
@@ -0,0 +1,73 @@
// Definitions for SuperAudioBoard
/dts-v1/;
/plugin/;

/ {
compatible = "brcm,bcm2708";

fragment@0 {
target = <&sound>;
__overlay__ {
compatible = "simple-audio-card";
i2s-controller = <&i2s>;
status = "okay";

simple-audio-card,name = "SuperAudioBoard";

simple-audio-card,widgets =
"Line", "Line In",
"Line", "Line Out";

simple-audio-card,routing =
"Line Out","AOUTA+",
"Line Out","AOUTA-",
"Line Out","AOUTB+",
"Line Out","AOUTB-",
"AINA","Line In",
"AINB","Line In";

simple-audio-card,format = "i2s";

simple-audio-card,bitclock-master = <&sound_master>;
simple-audio-card,frame-master = <&sound_master>;

simple-audio-card,cpu {
sound-dai = <&i2s>;
dai-tdm-slot-num = <2>;
dai-tdm-slot-width = <32>;
};

sound_master: simple-audio-card,codec {
sound-dai = <&cs4271>;
system-clock-frequency = <24576000>;
};
};
};

fragment@1 {
target = <&i2s>;
__overlay__ {
status = "okay";
};
};

fragment@2 {
target = <&i2c1>;
__overlay__ {
#address-cells = <1>;
#size-cells = <0>;
status = "okay";

cs4271: cs4271@10 {
#sound-dai-cells = <0>;
compatible = "cirrus,cs4271";
reg = <0x10>;
status = "okay";
reset-gpio = <&gpio 26 0>; /* Pin 26, active high */
};
};
};
__overrides__ {
gpiopin = <&cs4271>,"reset-gpio:4";
};
};
1 change: 1 addition & 0 deletions arch/arm/configs/bcm2709_defconfig
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Expand Up @@ -895,6 +895,7 @@ CONFIG_SND_PISOUND=m
CONFIG_SND_SOC_ADAU1701=m
CONFIG_SND_SOC_ADAU7002=m
CONFIG_SND_SOC_AK4554=m
CONFIG_SND_SOC_CS4271_I2C=m
CONFIG_SND_SOC_SPDIF=m
CONFIG_SND_SOC_WM8804_I2C=m
CONFIG_SND_SIMPLE_CARD=m
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1 change: 1 addition & 0 deletions arch/arm/configs/bcmrpi_defconfig
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Expand Up @@ -888,6 +888,7 @@ CONFIG_SND_PISOUND=m
CONFIG_SND_SOC_ADAU1701=m
CONFIG_SND_SOC_ADAU7002=m
CONFIG_SND_SOC_AK4554=m
CONFIG_SND_SOC_CS4271_I2C=m
CONFIG_SND_SOC_SPDIF=m
CONFIG_SND_SOC_WM8804_I2C=m
CONFIG_SND_SIMPLE_CARD=m
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1 change: 1 addition & 0 deletions arch/arm64/configs/bcmrpi3_defconfig
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Expand Up @@ -872,6 +872,7 @@ CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC=m
CONFIG_SND_PISOUND=m
CONFIG_SND_SOC_ADAU1701=m
CONFIG_SND_SOC_AK4554=m
CONFIG_SND_SOC_CS4271_I2C=m
CONFIG_SND_SOC_WM8804_I2C=m
CONFIG_SND_SIMPLE_CARD=m
CONFIG_SOUND_PRIME=m
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