linux-kernel - [PATCH v5 3/7] dt-bindings: display: add #sound-dai-cells property to rockchip rk3066 hdmi

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Date:   Wed, 18 Nov 2020 14:58:18 +0100
From:   Johan Jonker <jbx6244@...il.com>
To:     heiko@...ech.de
Cc:     hjc@...k-chips.com, robh+dt@...nel.org, airlied@...ux.ie,
        daniel@...ll.ch, mturquette@...libre.com, sboyd@...nel.org,
        lgirdwood@...il.com, broonie@...nel.org, linux-clk@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, alsa-devel@...a-project.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v5 3/7] dt-bindings: display: add #sound-dai-cells property to rockchip rk3066 hdmi

'#sound-dai-cells' is required to properly interpret
the list of DAI specified in the 'sound-dai' property.
Add it to rockchip,rk3066-hdmi.yaml to document that the
rk3066 HDMI TX also can be used to transmit some audio.

Signed-off-by: Johan Jonker <jbx6244@...il.com>
---
 .../devicetree/bindings/display/rockchip/rockchip,rk3066-hdmi.yaml    | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip,rk3066-hdmi.yaml b/Documentation/devicetree/bindings/display/rockchip/rockchip,rk3066-hdmi.yaml
index 4110d003c..585a8d3b9 100644
--- a/Documentation/devicetree/bindings/display/rockchip/rockchip,rk3066-hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/rockchip/rockchip,rk3066-hdmi.yaml
@@ -42,6 +42,9 @@ properties:
     description:
       This soc uses GRF regs to switch the HDMI TX input between vop0 and vop1.
 
+  "#sound-dai-cells":
+    const: 0
+
   ports:
     type: object
 
@@ -101,6 +104,7 @@ examples:
       pinctrl-names = "default";
       power-domains = <&power RK3066_PD_VIO>;
       rockchip,grf = <&grf>;
+      #sound-dai-cells = <0>;
 
       ports {
         #address-cells = <1>;
-- 
2.11.0