Describe CVBS video input through analog video decoder ADV7180
connected to video input interface VIN4.
The video input signal path is shared with HDMI video input, and
selected by on-board switches SW-53 and SW-54 with CVBS input selected
by the default switches configuration.
Signed-off-by: Jacopo Mondi <jacopo+rene...@jmondi.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund+rene...@ragnatech.se>
---
v2 -> v3:
- Add comment to describe the shared input video path
- Add my SoB and Niklas' R-b tags
---
arch/arm64/boot/dts/renesas/r8a77995-draak.dts | 42 ++++++++++++++++++++++++++
1 file changed, 42 insertions(+)
diff --git a/arch/arm64/boot/dts/renesas/r8a77995-draak.dts
b/arch/arm64/boot/dts/renesas/r8a77995-draak.dts
index 9d73de8..95745fc 100644
--- a/arch/arm64/boot/dts/renesas/r8a77995-draak.dts
+++ b/arch/arm64/boot/dts/renesas/r8a77995-draak.dts
@@ -142,6 +142,11 @@
groups = "usb0";
function = "usb0";
};
+
+ vin4_pins_cvbs: vin4 {
+ groups = "vin4_data8", "vin4_sync", "vin4_clk";
+ function = "vin4";
+ };
};
&i2c0 {
@@ -154,6 +159,23 @@
reg = <0x50>;
pagesize = <8>;
};
+
+ analog-video@20 {
+ compatible = "adi,adv7180";
+ reg = <0x20>;
+
+ port {
+ /*
+ * The VIN4 video input path is shared between
+ * CVBS and HDMI inputs through SW[49-54] switches.
+ *
+ * CVBS is the default selection, link it to VIN4 here.
+ */
+ adv7180_out: endpoint {
+ remote-endpoint = <&vin4_in>;
+ };
+ };
+ };
};
&i2c1 {
@@ -246,3 +268,23 @@
timeout-sec = <60>;
status = "okay";
};
+
+&vin4 {
+ pinctrl-0 = <&vin4_pins_cvbs>;
+ pinctrl-names = "default";
+
+ status = "okay";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ vin4_in: endpoint {
+ remote-endpoint = <&adv7180_out>;
+ };
+ };
+ };
+};
--
2.7.4
