dt-bindings: rng: add MediaTek MT7622 Hardware Random Generator bindings

Document the bindings used by MediaTek MT7622 SoC hardware random number
generator.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/Documentation/devicetree/bindings/rng/mtk-rng.txt b/Documentation/devicetree/bindings/rng/mtk-rng.txt
index a6d62a2..366b99b 100644 (file)
--- a/Documentation/devicetree/bindings/rng/mtk-rng.txt
+++ b/Documentation/devicetree/bindings/rng/mtk-rng.txt
@@ -2,7 +2,9 @@ Device-Tree bindings for Mediatek random number generator
 found in Mediatek SoC family
 
 Required properties:
-- compatible       : Should be "mediatek,mt7623-rng"
+- compatible       : Should be
+                       "mediatek,mt7622-rng",  "mediatek,mt7623-rng" : for MT7622
+                       "mediatek,mt7623-rng" : for MT7623
 - clocks           : list of clock specifiers, corresponding to
                      entries in clock-names property;
 - clock-names      : Should contain "rng" entries;