git.openwrt.org Git - openwrt/staging/aparcar.git/blob

   1 From e2516e3a7d2244f74c3267be8bdc143448c278be Mon Sep 17 00:00:00 2001
   2 From: Matt Flax <flatmax@flatmax.org>
   3 Date: Tue, 28 Aug 2018 18:42:13 +1000
   4 Subject: [PATCH] Add support for audioinjector.net ultra soundcard.
   5  (#2664)
   6
   7 Uses the simple-audio-card ALSA machine driver. Sets up the machine
   8 driver in the device tree overlay file. The overlays/Makefile is
   9 altered to add the audioinjector-ultra.dtbo dtb overlay.
  10
  11 Adds CONFIG_SND_SOC_CS4265 to the defconfig files.
  12
  13 Signed-off-by: Matt Flax <flatmax@flatmax.org>
  14 ---
  15  arch/arm/boot/dts/overlays/Makefile           |  1 +
  16  arch/arm/boot/dts/overlays/README             |  6 ++
  17  .../overlays/audioinjector-ultra-overlay.dts  | 71 +++++++++++++++++++
  18  5 files changed, 80 insertions(+)
  19  create mode 100644 arch/arm/boot/dts/overlays/audioinjector-ultra-overlay.dts
  20
  21 --- a/arch/arm/boot/dts/overlays/Makefile
  22 +++ b/arch/arm/boot/dts/overlays/Makefile
  23 @@ -15,6 +15,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
  24         applepi-dac.dtbo \
  25         at86rf233.dtbo \
  26         audioinjector-addons.dtbo \
  27 +       audioinjector-ultra.dtbo \
  28         audioinjector-wm8731-audio.dtbo \
  29         audremap.dtbo \
  30         balena-fin.dtbo \
  31 --- a/arch/arm/boot/dts/overlays/README
  32 +++ b/arch/arm/boot/dts/overlays/README
  33 @@ -389,6 +389,12 @@ Params: non-stop-clocks         Keeps th
  34                                  is paused or stopped (default off)
  35
  36
  37 +Name:   audioinjector-ultra
  38 +Info:   Configures the audioinjector.net ultra soundcard
  39 +Load:   dtoverlay=audioinjector-ultra
  40 +Params: <None>
  41 +
  42 +
  43  Name:   audioinjector-wm8731-audio
  44  Info:   Configures the audioinjector.net audio add on soundcard
  45  Load:   dtoverlay=audioinjector-wm8731-audio
  46 --- /dev/null
  47 +++ b/arch/arm/boot/dts/overlays/audioinjector-ultra-overlay.dts
  48 @@ -0,0 +1,71 @@
  49 +// Definitions for audioinjector.net audio add on soundcard
  50 +/dts-v1/;
  51 +/plugin/;
  52 +
  53 +/ {
  54 +       compatible = "brcm,bcm2708";
  55 +
  56 +       fragment@0 {
  57 +               target = <&i2s>;
  58 +               __overlay__ {
  59 +                       status = "okay";
  60 +               };
  61 +       };
  62 +
  63 +       fragment@1 {
  64 +               target = <&i2c1>;
  65 +               __overlay__ {
  66 +                       #address-cells = <1>;
  67 +                       #size-cells = <0>;
  68 +                       status = "okay";
  69 +
  70 +                       cs4265: cs4265@4e {
  71 +                               #sound-dai-cells = <0>;
  72 +                               compatible = "cirrus,cs4265";
  73 +                               reg = <0x4e>;
  74 +                               reset-gpios = <&gpio 5 0>;
  75 +                               status = "okay";
  76 +                       };
  77 +               };
  78 +       };
  79 +
  80 +       fragment@2 {
  81 +               target = <&sound>;
  82 +               __overlay__ {
  83 +                       compatible = "simple-audio-card";
  84 +                       i2s-controller = <&i2s>;
  85 +                       status = "okay";
  86 +
  87 +                       simple-audio-card,name = "audioinjector-ultra";
  88 +
  89 +                       simple-audio-card,widgets =
  90 +                               "Line", "OUTPUTS",
  91 +                               "Line", "INPUTS";
  92 +
  93 +                       simple-audio-card,routing =
  94 +                               "OUTPUTS","LINEOUTL",
  95 +                               "OUTPUTS","LINEOUTR",
  96 +                               "OUTPUTS","SPDIFOUT",
  97 +                               "LINEINL","INPUTS",
  98 +                               "LINEINR","INPUTS",
  99 +                               "MICL","INPUTS",
 100 +                               "MICR","INPUTS";
 101 +
 102 +                       simple-audio-card,format = "i2s";
 103 +
 104 +                       simple-audio-card,bitclock-master = <&sound_master>;
 105 +                       simple-audio-card,frame-master = <&sound_master>;
 106 +
 107 +                       simple-audio-card,cpu {
 108 +                               sound-dai = <&i2s>;
 109 +                               dai-tdm-slot-num = <2>;
 110 +                               dai-tdm-slot-width = <32>;
 111 +                       };
 112 +
 113 +                       sound_master: simple-audio-card,codec {
 114 +                               sound-dai = <&cs4265>;
 115 +                               system-clock-frequency = <12288000>;
 116 +                       };
 117 +               };
 118 +       };
 119 +};