target/linux/brcm2708/patches-4.4/0562-Pisound-dynamic-overlay-1760.patch

   1 From cdf6acdd6a6270538b0fdd08e79986d4a553062a Mon Sep 17 00:00:00 2001
   2 From: gtrainavicius <gtrainavicius@users.noreply.github.com>
   3 Date: Sat, 10 Dec 2016 16:05:25 +0200
   4 Subject: [PATCH] Pisound dynamic overlay (#1760)
   5
   6 Restructuring pisound-overlay.dts, so it can be loaded and unloaded dynamically using dtoverlay.
   7
   8 Print a logline when the kernel module is removed.
   9 ---
  10  arch/arm/boot/dts/overlays/pisound-overlay.dts | 94 ++++++++++++++------------
  11  sound/soc/bcm/pisound.c                        |  2 +
  12  2 files changed, 52 insertions(+), 44 deletions(-)
  13
  14 diff --git a/arch/arm/boot/dts/overlays/pisound-overlay.dts b/arch/arm/boot/dts/overlays/pisound-overlay.dts
  15 index 7cdfc29..5197e65 100644
  16 --- a/arch/arm/boot/dts/overlays/pisound-overlay.dts
  17 +++ b/arch/arm/boot/dts/overlays/pisound-overlay.dts
  18 @@ -26,6 +26,54 @@
  19         compatible = "brcm,bcm2708";
  20
  21         fragment@0 {
  22 +               target = <&spi0>;
  23 +               __overlay__ {
  24 +                       status = "okay";
  25 +               };
  26 +       };
  27 +
  28 +       fragment@1 {
  29 +               target = <&spidev0>;
  30 +               __overlay__ {
  31 +                       status = "disabled";
  32 +               };
  33 +       };
  34 +
  35 +       fragment@2 {
  36 +               target = <&spidev1>;
  37 +               __overlay__ {
  38 +                       status = "okay";
  39 +               };
  40 +       };
  41 +
  42 +       fragment@3 {
  43 +               target = <&spi0>;
  44 +               __overlay__ {
  45 +                       #address-cells = <1>;
  46 +                       #size-cells = <0>;
  47 +
  48 +                       pisound_spi: pisound_spi@0{
  49 +                               compatible = "blokaslabs,pisound-spi";
  50 +                               reg = <0>;
  51 +                               pinctrl-names = "default";
  52 +                               pinctrl-0 = <&spi0_pins>;
  53 +                               spi-max-frequency = <1000000>;
  54 +                       };
  55 +               };
  56 +       };
  57 +
  58 +       fragment@4 {
  59 +               target-path = "/";
  60 +               __overlay__ {
  61 +                       pcm5102a-codec {
  62 +                               #sound-dai-cells = <0>;
  63 +                               compatible = "ti,pcm5102a";
  64 +                               status = "okay";
  65 +                       };
  66 +               };
  67 +       };
  68 +
  69 +       fragment@5 {
  70                 target = <&sound>;
  71                 __overlay__ {
  72                         compatible = "blokaslabs,pisound";
  73 @@ -49,7 +97,7 @@
  74                 };
  75         };
  76
  77 -       fragment@1 {
  78 +       fragment@6 {
  79                 target = <&gpio>;
  80                 __overlay__ {
  81                         pinctrl-names = "default";
  82 @@ -63,52 +111,10 @@
  83                 };
  84         };
  85
  86 -       fragment@2 {
  87 +       fragment@7 {
  88                 target = <&i2s>;
  89                 __overlay__ {
  90                         status = "okay";
  91                 };
  92         };
  93 -
  94 -       fragment@3 {
  95 -               target-path = "/";
  96 -               __overlay__ {
  97 -                       pcm5102a-codec {
  98 -                               #sound-dai-cells = <0>;
  99 -                               compatible = "ti,pcm5102a";
 100 -                               status = "okay";
 101 -                       };
 102 -               };
 103 -       };
 104 -
 105 -       fragment@4 {
 106 -               target = <&spi0>;
 107 -               __overlay__ {
 108 -                       status = "okay";
 109 -
 110 -                       spidev@0{
 111 -                               status = "disabled";
 112 -                       };
 113 -
 114 -                       spidev@1{
 115 -                               status = "okay";
 116 -                       };
 117 -               };
 118 -       };
 119 -
 120 -       fragment@5 {
 121 -               target = <&spi0>;
 122 -               __overlay__ {
 123 -                       #address-cells = <1>;
 124 -                       #size-cells = <0>;
 125 -
 126 -                       pisound_spi: pisound_spi@0{
 127 -                               compatible = "blokaslabs,pisound-spi";
 128 -                               reg = <0>;
 129 -                               pinctrl-names = "default";
 130 -                               pinctrl-0 = <&spi0_pins>;
 131 -                               spi-max-frequency = <1000000>;
 132 -                       };
 133 -               };
 134 -       };
 135  };
 136 diff --git a/sound/soc/bcm/pisound.c b/sound/soc/bcm/pisound.c
 137 index a3cd089..30903fcf 100644
 138 --- a/sound/soc/bcm/pisound.c
 139 +++ b/sound/soc/bcm/pisound.c
 140 @@ -954,6 +954,8 @@ static int pisnd_probe(struct platform_device *pdev)
 141
 142  static int pisnd_remove(struct platform_device *pdev)
 143  {
 144 +       printi("Unloading.\n");
 145 +
 146         if (pisnd_kobj) {
 147                 kobject_put(pisnd_kobj);
 148                 pisnd_kobj = NULL;
 149 --
 150 2.1.4
 151