ASoC: rsnd: Document SoC-specific bindings

The documentation only mentioned the generic fallback compatible
property.
Add the missing SoC-specific compatible properties, which are already in
use.

Also drop a bogus 0x unit-address prefix while we're at it.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Mark Brown <broonie@kernel.org>
(cherry picked from commit 56ba98acc398883324c0e70dc8aee1dc53eb2331)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/Documentation/devicetree/bindings/sound/renesas,rsnd.txt b/Documentation/devicetree/bindings/sound/renesas,rsnd.txt
index aa697ab..2dd690b 100644 (file)
--- a/Documentation/devicetree/bindings/sound/renesas,rsnd.txt
+++ b/Documentation/devicetree/bindings/sound/renesas,rsnd.txt
@@ -1,8 +1,12 @@
 Renesas R-Car sound
 
 Required properties:
-- compatible                   : "renesas,rcar_sound-gen1" if generation1
+- compatible                   : "renesas,rcar_sound-<soctype>", fallbacks
+                                 "renesas,rcar_sound-gen1" if generation1, and
                                  "renesas,rcar_sound-gen2" if generation2
+                                 Examples with soctypes are:
+                                   - "renesas,rcar_sound-r8a7790" (R-Car H2)
+                                   - "renesas,rcar_sound-r8a7791" (R-Car M2-W)
 - reg                          : Should contain the register physical address.
                                  required register is
                                   SRU/ADG/SSI      if generation1
@@ -35,9 +39,9 @@ DAI subnode properties:
 
 Example:
 
-rcar_sound: rcar_sound@0xffd90000 {
+rcar_sound: rcar_sound@ec500000 {
        #sound-dai-cells = <1>;
-       compatible = "renesas,rcar_sound-gen2";
+       compatible = "renesas,rcar_sound-r8a7791", "renesas,rcar_sound-gen2";
        reg =   <0 0xec500000 0 0x1000>, /* SCU */
                <0 0xec5a0000 0 0x100>,  /* ADG */
                <0 0xec540000 0 0x1000>, /* SSIU */