summaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/media/i2c/adv748x.txt
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
commit5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch)
treea94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/media/i2c/adv748x.txt
parentInitial commit. (diff)
downloadlinux-upstream/5.10.209.tar.xz
linux-upstream/5.10.209.zip
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/devicetree/bindings/media/i2c/adv748x.txt')
-rw-r--r--Documentation/devicetree/bindings/media/i2c/adv748x.txt116
1 files changed, 116 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/media/i2c/adv748x.txt b/Documentation/devicetree/bindings/media/i2c/adv748x.txt
new file mode 100644
index 000000000..4f91686e5
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/adv748x.txt
@@ -0,0 +1,116 @@
+* Analog Devices ADV748X video decoder with HDMI receiver
+
+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.
+
+Required Properties:
+
+ - compatible: Must contain one of the following
+ - "adi,adv7481" for the ADV7481
+ - "adi,adv7482" for the ADV7482
+
+ - reg: I2C slave addresses
+ The ADV748x has up to twelve 256-byte maps that can be accessed via the
+ main I2C ports. Each map has it own I2C address and acts as a standard
+ slave device on the I2C bus. The main address is mandatory, others are
+ optional and remain at default values if not specified.
+
+Optional Properties:
+
+ - interrupt-names: Should specify the interrupts as "intrq1", "intrq2" and/or
+ "intrq3". All interrupts are optional. The "intrq3" interrupt
+ is only available on the adv7481
+ - interrupts: Specify the interrupt lines for the ADV748x
+ - reg-names : Names of maps with programmable addresses.
+ It shall contain all maps needing a non-default address.
+ Possible map names are:
+ "main", "dpll", "cp", "hdmi", "edid", "repeater",
+ "infoframe", "cbus", "cec", "sdp", "txa", "txb"
+
+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.
+
+ Name Type Port
+ ---------------------------------------
+ AIN0 sink 0
+ AIN1 sink 1
+ AIN2 sink 2
+ AIN3 sink 3
+ AIN4 sink 4
+ AIN5 sink 5
+ AIN6 sink 6
+ AIN7 sink 7
+ HDMI sink 8
+ TTL sink 9
+ TXA source 10
+ TXB source 11
+
+The digital output port nodes, when present, shall contain at least one
+endpoint. Each of those endpoints shall contain the data-lanes property as
+described in video-interfaces.txt.
+
+Required source endpoint properties:
+ - data-lanes: an array of physical data lane indexes
+ The accepted value(s) for this property depends on which of the two
+ sources are described. For TXA 1, 2 or 4 data lanes can be described
+ while for TXB only 1 data lane is valid. See video-interfaces.txt
+ for detailed description.
+
+Ports are optional if they are not connected to anything at the hardware level.
+
+Example:
+
+ video-receiver@70 {
+ compatible = "adi,adv7482";
+ reg = <0x70 0x71 0x72 0x73 0x74 0x75
+ 0x60 0x61 0x62 0x63 0x64 0x65>;
+ reg-names = "main", "dpll", "cp", "hdmi", "edid", "repeater",
+ "infoframe", "cbus", "cec", "sdp", "txa", "txb";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ interrupt-parent = <&gpio6>;
+ interrupt-names = "intrq1", "intrq2";
+ interrupts = <30 IRQ_TYPE_LEVEL_LOW>,
+ <31 IRQ_TYPE_LEVEL_LOW>;
+
+ port@7 {
+ reg = <7>;
+
+ adv7482_ain7: endpoint {
+ remote-endpoint = <&cvbs_in>;
+ };
+ };
+
+ port@8 {
+ reg = <8>;
+
+ adv7482_hdmi: endpoint {
+ remote-endpoint = <&hdmi_in>;
+ };
+ };
+
+ port@a {
+ reg = <10>;
+
+ adv7482_txa: endpoint {
+ clock-lanes = <0>;
+ data-lanes = <1 2 3 4>;
+ remote-endpoint = <&csi40_in>;
+ };
+ };
+
+ port@b {
+ reg = <11>;
+
+ adv7482_txb: endpoint {
+ clock-lanes = <0>;
+ data-lanes = <1>;
+ remote-endpoint = <&csi20_in>;
+ };
+ };
+ };