ASoC: rcar: subnode tidyup for renesas,rsnd.txt

rcar_sound,ssi/src/dai subnode documentation
become more cleaner

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 12 insertions, 3 deletions

diff --git a/Documentation/devicetree/bindings/sound/renesas,rsnd.txt b/Documentation/devicetree/bindings/sound/renesas,rsnd.txt
index 7c6d33f29796..a44e9179faf5 100644
--- a/Documentation/devicetree/bindings/sound/renesas,rsnd.txt
+++ b/Documentation/devicetree/bindings/sound/renesas,rsnd.txt
@@ -7,14 +7,23 @@ Required properties:
                                   required register is
                                    SRU/ADG/SSI      if generation1
                                    SRU/ADG/SSIU/SSI if generation2
-- rcar_sound,ssi                : SSI subnode
-- rcar_sound,scu                : SCU subnode
-- rcar_sound,dai                : DAI subnode
+- rcar_sound,ssi                : Should contain SSI feature.
+                                  The number of SSI subnode should be same as HW.
+                                  see below for detail.
+- rcar_sound,src                : Should contain SRC feature.
+                                  The number of SRC subnode should be same as HW.
+                                  see below for detail.
+- rcar_sound,dai                : DAI contents.
+                                  The number of DAI subnode should be same as HW.
+                                  see below for detail.
 
 SSI subnode properties:
 - interrupts                    : Should contain SSI interrupt for PIO transfer
 - shared-pin                    : if shared clock pin
 
+SRC subnode properties:
+no properties at this point
+
 DAI subnode properties:
 - playback                      : list of playback modules
 - capture                       : list of capture  modules