target/linux/brcm2708/patches-4.14/950-0139-overlays-Add-applepi-dac-overlay.patch

   1 From 55b3c295a6dd32de589bcd38c771748773e2d0d2 Mon Sep 17 00:00:00 2001
   2 From: Phil Elwell <phil@raspberrypi.org>
   3 Date: Sat, 9 Dec 2017 21:45:12 +0000
   4 Subject: [PATCH 139/454] overlays: Add applepi-dac overlay
   5
   6 See: https://github.com/raspberrypi/linux/issues/2302
   7
   8 Signed-off-by: Phil Elwell <phil@raspberrypi.org>
   9 ---
  10  arch/arm/boot/dts/overlays/Makefile           |  1 +
  11  arch/arm/boot/dts/overlays/README             |  6 ++
  12  .../boot/dts/overlays/applepi-dac-overlay.dts | 57 +++++++++++++++++++
  13  3 files changed, 64 insertions(+)
  14  create mode 100644 arch/arm/boot/dts/overlays/applepi-dac-overlay.dts
  15
  16 --- a/arch/arm/boot/dts/overlays/Makefile
  17 +++ b/arch/arm/boot/dts/overlays/Makefile
  18 @@ -11,6 +11,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
  19         allo-digione.dtbo \
  20         allo-piano-dac-pcm512x-audio.dtbo \
  21         allo-piano-dac-plus-pcm512x-audio.dtbo \
  22 +       applepi-dac.dtbo \
  23         at86rf233.dtbo \
  24         audioinjector-addons.dtbo \
  25         audioinjector-wm8731-audio.dtbo \
  26 --- a/arch/arm/boot/dts/overlays/README
  27 +++ b/arch/arm/boot/dts/overlays/README
  28 @@ -337,6 +337,12 @@ Params: 24db_digital_gain       Allow ga
  29                                  better voice quality. (default Off)
  30
  31
  32 +Name:   applepi-dac
  33 +Info:   Configures the Orchard Audio ApplePi-DAC audio card
  34 +Load:   dtoverlay=applepi-dac
  35 +Params: <None>
  36 +
  37 +
  38  Name:   at86rf233
  39  Info:   Configures the Atmel AT86RF233 802.15.4 low-power WPAN transceiver,
  40          connected to spi0.0
  41 --- /dev/null
  42 +++ b/arch/arm/boot/dts/overlays/applepi-dac-overlay.dts
  43 @@ -0,0 +1,57 @@
  44 +/dts-v1/;
  45 +/plugin/;
  46 +
  47 +/ {
  48 +    compatible = "brcm,bcm2708";
  49 +
  50 +    fragment@0 {
  51 +        target = <&sound>;
  52 +        __overlay__ {
  53 +            compatible = "simple-audio-card";
  54 +            simple-audio-card,name = "ApplePi-DAC";
  55 +
  56 +            status = "okay";
  57 +
  58 +            playback_link: simple-audio-card,dai-link@1 {
  59 +                format = "i2s";
  60 +
  61 +                p_cpu_dai: cpu {
  62 +                    sound-dai = <&i2s>;
  63 +                    dai-tdm-slot-num = <2>;
  64 +                    dai-tdm-slot-width = <32>;
  65 +                };
  66 +
  67 +                p_codec_dai: codec {
  68 +                    sound-dai = <&codec_out>;
  69 +                };
  70 +            };
  71 +        };
  72 +    };
  73 +
  74 +    fragment@1 {
  75 +        target-path = "/";
  76 +        __overlay__ {
  77 +            codec_out: pcm1794a-codec {
  78 +                #sound-dai-cells = <0>;
  79 +                compatible = "ti,pcm1794a";
  80 +                status = "okay";
  81 +            };
  82 +        };
  83 +    };
  84 +
  85 +    fragment@2 {
  86 +        target = <&i2s>;
  87 +        __overlay__ {
  88 +            #sound-dai-cells = <0>;
  89 +            status = "okay";
  90 +        };
  91 +    };
  92 +};
  93 +
  94 +/*
  95 +   Written by: Leonid Ayzenshtat
  96 +   Company: Orchard Audio (www.orchardaudio.com)
  97 +
  98 +   compile with:
  99 +   dtc -@ -H epapr -O dtb -o ApplePi-DAC.dtbo -W no-unit_address_vs_reg ApplePi-DAC.dts
 100 +*/