The I2C address of the HDMI subdevice is needed for the driver to be
loaded and initialized at system startup time.
The origin of the video must be indicated by a reverse phandle
according to the media video interface.
Signed-off-by: Jean-Francois Moine <moinejf at free.fr>
---
Documentation/devicetree/bindings/drm/i2c/tda998x.txt | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/Documentation/devicetree/bindings/drm/i2c/tda998x.txt
b/Documentation/devicetree/bindings/drm/i2c/tda998x.txt
index d7df01c..c9fbb0f 100644
--- a/Documentation/devicetree/bindings/drm/i2c/tda998x.txt
+++ b/Documentation/devicetree/bindings/drm/i2c/tda998x.txt
@@ -3,6 +3,8 @@ Device-Tree bindings for the NXP TDA998x HDMI transmitter
Required properties;
- compatible: must be "nxp,tda998x"
+ - reg: must be <0x70>
+
Optional properties:
- interrupts: interrupt number and trigger type
default: polling
@@ -15,6 +17,10 @@ Optional properties:
- video-ports: 24 bits value which defines how the video controller
output is wired to the TDA998x input - default: <0x230145>
+Required nodes:
+
+ - port: reference of the video source as described in media/video-interfaces
+
Example:
tda998x: hdmi-encoder {
@@ -24,4 +30,10 @@ Example:
interrupts = <27 2>; /* falling edge */
pinctrl-0 = <&pmx_camera>;
pinctrl-names = "default";
+
+ port {
+ tda998x_0: endpoint at 0 {
+ remote-endpoint = <&lcd0_0>;
+ };
+ };
};
--
1.9.0
