meta-agl-bsp/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0004-ADSP-enable-and-add-sound-hardware-abstraction_kf.patch

   1 The ADSP on Renesas SoCs required a reserved memory area to become
   2 enabled, and this needs to be done manually.
   3
   4 This patch adds sound hardware abstraction information for the m3ulcb
   5 and m3ulcb-kf (kingfisher) device trees. This is helpful on-board the
   6 ADSP for dynamically determining sound hardware at runtime, allowing
   7 single binaries to be used between the two boards.
   8
   9 Future work will incorporate the h3ulcb and Salvator boards into the
  10 abstraction.
  11
  12 Signed-off-by: Ronan Le Martret <ronan.lemartret@iot.bzh>
  13 Signed-off-by: Mark Farrugia <mark.farrugia@fiberdyne.com.au>
  14 ---
  15 diff --git a/arch/arm64/boot/dts/renesas/r8a7796-m3ulcb-kf.dts b/arch/arm64/boot/dts/renesas/r8a7796-m3ulcb-kf.dts
  16 index de2390f009e7..4ccfa8315d17 100644
  17 --- a/arch/arm64/boot/dts/renesas/r8a7796-m3ulcb-kf.dts
  18 +++ b/arch/arm64/boot/dts/renesas/r8a7796-m3ulcb-kf.dts
  19 @@ -15,6 +15,39 @@
  20                      "renesas,r8a7796";
  21  };
  22
  23 +
  24 +&adsp {
  25 +
  26 +       /* ADSP playback setting for pcm3168 */
  27 +       adsp_playback0: adsp,playback {
  28 +               mode  = "tdm";
  29 +               clock-mode = "master";
  30 +               bus-width = <24>;
  31 +               ssi = <3>;
  32 +               bus-if = <0>;
  33 +               channels = <8>;
  34 +               pin-share-ssi = <4>;
  35 +       };
  36 +
  37 +       /* ADSP capture setting for pcm3168 */
  38 +       adsp_capture0: adsp,capture {
  39 +               mode  = "tdm";
  40 +               clock-mode = "slave";
  41 +               bus-width = <24>;
  42 +               ssi = <4>;
  43 +               bus-if = <0>;
  44 +               channels = <8>;
  45 +               pin-share-ssi = <3>;
  46 +       };
  47 +
  48 +       adsp,ports {
  49 +               port@0 {
  50 +                       playback = <&adsp_playback0>;
  51 +                       capture  = <&adsp_capture0>;
  52 +               };
  53 +       };
  54 +};
  55 +
  56  &du {
  57         ports {
  58                 port@0 {