[PATCH 20/22] [media] tvp5150: Add input port connectors DT bindings

Marco Felsch
2018-06-28T16:20:52Z

The TVP5150/1 decoders support different video input sources to their
AIP1A/B pins.

Possible configurations are as follows:
- Analog Composite signal connected to AIP1A.
- Analog Composite signal connected to AIP1B.
- Analog S-Video Y (luminance) and C (chrominance)
signals connected to AIP1A and AIP1B respectively.

This patch extends the device tree bindings documentation to describe
how the input connectors for these devices should be defined in a DT.

Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
---
.../devicetree/bindings/media/i2c/tvp5150.txt | 118 +++++++++++++++++-
1 file changed, 113 insertions(+), 5 deletions(-)

diff --git a/Documentation/devicetree/bindings/media/i2c/tvp5150.txt b/Documentation/devicetree/bindings/media/i2c/tvp5150.txt
index 8c0fc1a26bf0..feed8c911c5e 100644
--- a/Documentation/devicetree/bindings/media/i2c/tvp5150.txt
+++ b/Documentation/devicetree/bindings/media/i2c/tvp5150.txt
@@ -12,11 +12,23 @@ Optional Properties:
- pdn-gpios: phandle for the GPIO connected to the PDN pin, if any.
- reset-gpios: phandle for the GPIO connected to the RESETB pin, if any.

-The device node must contain one 'port' child node for its digital output
-video port, in accordance with the video interface bindings defined in
-Documentation/devicetree/bindings/media/video-interfaces.txt.
+The device node must contain one 'port' child node per device input and output
+port, in accordance with the video interface bindings defined in
+Documentation/devicetree/bindings/media/video-interfaces.txt. The port nodes
+are numbered as follows

-Required Endpoint Properties for parallel synchronization:
+ Name Type Port
+ --------------------------------------
+ AIP1A sink 0
+ AIP1B sink 1
+ S-VIDEO sink 2
+ Y-OUT src 3
+
+The device node must contain at least the Y-OUT port. Each input port must be
+linked to an endpoint defined in
+Documentation/devicetree/bindings/display/connector/analog-tv-connector.txt.
+
+Required Endpoint Properties for parallel synchronization on output port:

- hsync-active: active state of the HSYNC signal. Must be <1> (HIGH).
- vsync-active: active state of the VSYNC signal. Must be <1> (HIGH).
@@ -26,7 +38,9 @@ Required Endpoint Properties for parallel synchronization:
If none of hsync-active, vsync-active and field-even-active is specified,
the endpoint is assumed to use embedded BT.656 synchronization.

-Example:
+Examples:
+
+Only Output:

&i2c2 {
...
@@ -37,6 +51,100 @@ Example:
reset-gpios = <&gpio6 7 GPIO_ACTIVE_LOW>;

port {
+ reg = <3>;
+ tvp5150_1: endpoint {
+ remote-endpoint = <&ccdc_ep>;
+ };
+ };
+ };
+};
+
+One Input:
+
+connector@0 {
+ compatible = "composite-video-connector";
+ label = "Composite0";
+
+ port {
+ comp0_out: endpoint {
+ remote-endpoint = <&tvp5150_comp0_in>;
+ };
+ };
+};
+
+&i2c2 {
+ ...
+ tvp5150@5c {
+ compatible = "ti,tvp5150";
+ reg = <0x5c>;
+ pdn-gpios = <&gpio4 30 GPIO_ACTIVE_LOW>;
+ reset-gpios = <&gpio6 7 GPIO_ACTIVE_LOW>;
+
+ port@0 {
+ reg = <0>;
+ tvp5150_comp0_in: endpoint {
+ remote-endpoint = <&comp0_out>;
+ };
+ };
+
+ port@3 {
+ reg = <3>;
+ tvp5150_1: endpoint {
+ remote-endpoint = <&ccdc_ep>;
+ };
+ };
+ };
+};
+
+
+Two Inputs, different connector 12 on input AIP1A:
+
+connector@1 {
+ compatible = "svideo-connector";
+ label = "S-Video";
+
+ port {
+ svideo_out: endpoint {
+ remote-endpoint = <&tvp5150_svideo_in>;
+ };
+ };
+};
+
+connector@12 {
+ compatible = "composite-video-connector";
+ label = "Composite12";
+
+ port {
+ comp12_out: endpoint {
+ remote-endpoint = <&tvp5150_comp12_in>;
+ };
+ };
+};
+
+&i2c2 {
+ ...
+ tvp5150@5c {
+ compatible = "ti,tvp5150";
+ reg = <0x5c>;
+ pdn-gpios = <&gpio4 30 GPIO_ACTIVE_LOW>;
+ reset-gpios = <&gpio6 7 GPIO_ACTIVE_LOW>;
+
+ port@0 {
+ reg = <0>;
+ tvp5150_comp12_in: endpoint {
+ remote-endpoint = <&comp12_out>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+ tvp5150_svideo_in: endpoint {
+ remote-endpoint = <&svideo_out>;
+ };
+ };
+
+ port@3 {
+ reg = <3>;
tvp5150_1: endpoint {
remote-endpoint = <&ccdc_ep>;
};
--
2.17.1