[PATCH 7/8] dt-bindings: adv748x: add information about serial audio interface (I2S/TDM)

Alex Riesen
2020-01-13T14:16:02Z

As the driver has some support for the audio interface of the device,
the bindings file should mention it.

Signed-off-by: Alexander Riesen <alexander.riesen@cetitec.com>
---
.../devicetree/bindings/media/i2c/adv748x.txt | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/media/i2c/adv748x.txt b/Documentation/devicetree/bindings/media/i2c/adv748x.txt
index 4f91686e54a6..c42dffb37a82 100644
--- a/Documentation/devicetree/bindings/media/i2c/adv748x.txt
+++ b/Documentation/devicetree/bindings/media/i2c/adv748x.txt
@@ -2,7 +2,9 @@

The ADV7481 and ADV7482 are multi format video decoders with an integrated
HDMI receiver. They can output CSI-2 on two independent outputs TXA and TXB
-from three input sources HDMI, analog and TTL.
+from three input sources HDMI, analog and TTL. There is also support for an
+I2S compatible interface connected to the audio processor of the HDMI decoder.
+The interface has TDM capability (8 slots, 32 bits, left or right justified).

Required Properties:

@@ -47,6 +49,7 @@ are numbered as follows.
TTL sink 9
TXA source 10
TXB source 11
+ I2S source 12

The digital output port nodes, when present, shall contain at least one
endpoint. Each of those endpoints shall contain the data-lanes property as
@@ -113,4 +116,12 @@ Example:
remote-endpoint = <&csi20_in>;
};
};
+
+ port@c {
+ reg = <12>;
+
+ adv7482_i2s: endpoint {
+ remote-endpoint = <&i2s_in>;
+ };
+ };
};
--
2.24.1.508.g91d2dafee0