git.ipfire.org Git - thirdparty/openwrt.git/blob

   1 From 77773aec03f65758c760ec5b43a79ad6edeb211b Mon Sep 17 00:00:00 2001
   2 From: j-schambacher <joerg@hifiberry.com>
   3 Date: Thu, 12 Sep 2024 16:44:12 +0200
   4 Subject: [PATCH 1263/1350] dtoverlays: adds the definitions for the HiFiBerry
   5  8-channel ADC
   6
   7 Additions and changes for the 8 channel ADC card. This card uses only
   8 HW-controlled devices which allows the uses of the 'dummy-dai'.
   9 It will run only on a PI5 as it requires the designware I2S0 module.
  10
  11 The necessary output lanes I2S0_DI[0..3] are claimed from within the
  12 DT overlay.
  13
  14 Signed-off-by: j-schambacher <joerg@hifiberry.com>
  15 ---
  16  arch/arm/boot/dts/overlays/Makefile           |  1 +
  17  arch/arm/boot/dts/overlays/README             |  6 +++
  18  .../dts/overlays/hifiberry-adc8x-overlay.dts  | 50 +++++++++++++++++++
  19  arch/arm/boot/dts/overlays/overlay_map.dts    |  4 ++
  20  4 files changed, 61 insertions(+)
  21  create mode 100644 arch/arm/boot/dts/overlays/hifiberry-adc8x-overlay.dts
  22
  23 --- a/arch/arm/boot/dts/overlays/Makefile
  24 +++ b/arch/arm/boot/dts/overlays/Makefile
  25 @@ -86,6 +86,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
  26         hd44780-lcd.dtbo \
  27         hdmi-backlight-hwhack-gpio.dtbo \
  28         hifiberry-adc.dtbo \
  29 +       hifiberry-adc8x.dtbo \
  30         hifiberry-amp.dtbo \
  31         hifiberry-amp100.dtbo \
  32         hifiberry-amp3.dtbo \
  33 --- a/arch/arm/boot/dts/overlays/README
  34 +++ b/arch/arm/boot/dts/overlays/README
  35 @@ -1778,6 +1778,12 @@ Params: leds_off                If set t
  36                                  is switched off at all times.
  37
  38
  39 +Name:   hifiberry-adc8x
  40 +Info:   Configures the HifiBerry ADC8X audio card (only on Pi5)
  41 +Load:   dtoverlay=hifiberry-adc8x
  42 +Params: <None>
  43 +
  44 +
  45  Name:   hifiberry-amp
  46  Info:   Configures the HifiBerry Amp and Amp+ audio cards
  47  Load:   dtoverlay=hifiberry-amp
  48 --- /dev/null
  49 +++ b/arch/arm/boot/dts/overlays/hifiberry-adc8x-overlay.dts
  50 @@ -0,0 +1,50 @@
  51 +// Definitions for HiFiBerry ADC8x
  52 +/dts-v1/;
  53 +/plugin/;
  54 +
  55 +/ {
  56 +       compatible = "brcm,bcm2712";
  57 +
  58 +       fragment@0 {
  59 +               target = <&gpio>;
  60 +               __overlay__ {
  61 +                       rp1_i2s0_adc8x: rp1_i2s0_adc8x {
  62 +                               function = "i2s0";
  63 +                               pins = "gpio18", "gpio19", "gpio20",
  64 +                                      "gpio22", "gpio24", "gpio26";
  65 +                               bias-disable;
  66 +                               status = "okay";
  67 +                       };
  68 +               };
  69 +       };
  70 +
  71 +       fragment@1 {
  72 +               target = <&i2s_clk_producer>;
  73 +               __overlay__ {
  74 +                       pinctrl-names = "default";
  75 +                       pinctrl-0 = <&rp1_i2s0_adc8x>;
  76 +                       status = "okay";
  77 +               };
  78 +       };
  79 +
  80 +       fragment@2 {
  81 +               target-path = "/";
  82 +               __overlay__ {
  83 +                       dummy-codec {
  84 +                               #sound-dai-cells = <0>;
  85 +                               compatible = "snd-soc-dummy";
  86 +                               status = "okay";
  87 +                       };
  88 +               };
  89 +       };
  90 +
  91 +       fragment@3 {
  92 +               target = <&sound>;
  93 +               __overlay__ {
  94 +                       compatible = "hifiberry,hifiberry-adc8x";
  95 +                       i2s-controller = <&i2s_clk_producer>;
  96 +                       status = "okay";
  97 +               };
  98 +       };
  99 +
 100 +};
 101 --- a/arch/arm/boot/dts/overlays/overlay_map.dts
 102 +++ b/arch/arm/boot/dts/overlays/overlay_map.dts
 103 @@ -48,6 +48,10 @@
 104                 bcm2712;
 105         };
 106
 107 +       hifiberry-adc8x {
 108 +               bcm2712;
 109 +       };
 110 +
 111         hifiberry-dac8x {
 112                 bcm2712;
 113         };