Document ITE IT6263 LVDS to HDMI converter.

Product link:
https://www.ite.com.tw/en/product/cate1/IT6263

Signed-off-by: Liu Ying <victor.liu@nxp.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
---
v5:
* Collect Biju's and Rob's R-b tags.

v4:
* Require dual-lvds-odd-pixels or dual-lvds-even-pixels DT properties for
  port@1.
* Drop "data-mirror: true"(30-bit LVDS data bit order is not reversed).

v3:
* Reference lvds-dual-ports.yaml.  (Dmitry)
* Add data-mapping DT property.  (Dmitry, Biju)
* Allow data-mirror.
* Drop ite,lvds-link-num-data-lanes DT property.  (Dmitry, Biju)

v2:
* Document number of LVDS link data lanes.  (Biju)
* Simplify ports property by dropping "oneOf".  (Rob)

 .../bindings/display/bridge/ite,it6263.yaml   | 250 ++++++++++++++++++
 1 file changed, 250 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/bridge/ite,it6263.yaml

diff --git a/Documentation/devicetree/bindings/display/bridge/ite,it6263.yaml b/Documentation/devicetree/bindings/display/bridge/ite,it6263.yaml
new file mode 100644
index 000000000000..0a10e10d80ff
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/ite,it6263.yaml
@@ -0,0 +1,250 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/ite,it6263.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ITE IT6263 LVDS to HDMI converter
+
+maintainers:
+  - Liu Ying <victor.liu@nxp.com>
+
+description: |
+  The IT6263 is a high-performance single-chip De-SSC(De-Spread Spectrum) LVDS
+  to HDMI converter.  Combined with LVDS receiver and HDMI 1.4a transmitter,
+  the IT6263 supports LVDS input and HDMI 1.4 output by conversion function.
+  The built-in LVDS receiver can support single-link and dual-link LVDS inputs,
+  and the built-in HDMI transmitter is fully compliant with HDMI 1.4a/3D, HDCP
+  1.2 and backward compatible with DVI 1.0 specification.
+
+  The IT6263 also encodes and transmits up to 8 channels of I2S digital audio,
+  with sampling rate up to 192KHz and sample size up to 24 bits. In addition,
+  an S/PDIF input port takes in compressed audio of up to 192KHz frame rate.
+
+  The newly supported High-Bit Rate(HBR) audio by HDMI specifications v1.3 is
+  provided by the IT6263 in two interfaces: the four I2S input ports or the
+  S/PDIF input port.  With both interfaces the highest possible HBR frame rate
+  is supported at up to 768KHz.
+
+allOf:
+  - $ref: /schemas/display/lvds-dual-ports.yaml#
+
+properties:
+  compatible:
+    const: ite,it6263
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+    description: audio master clock
+
+  clock-names:
+    const: mclk
+
+  data-mapping:
+    enum:
+      - jeida-18
+      - jeida-24
+      - jeida-30
+      - vesa-24
+      - vesa-30
+
+  reset-gpios:
+    maxItems: 1
+
+  ivdd-supply:
+    description: 1.8V digital logic power
+
+  ovdd-supply:
+    description: 3.3V I/O pin power
+
+  txavcc18-supply:
+    description: 1.8V HDMI analog frontend power
+
+  txavcc33-supply:
+    description: 3.3V HDMI analog frontend power
+
+  pvcc1-supply:
+    description: 1.8V HDMI frontend core PLL power
+
+  pvcc2-supply:
+    description: 1.8V HDMI frontend filter PLL power
+
+  avcc-supply:
+    description: 3.3V LVDS frontend power
+
+  anvdd-supply:
+    description: 1.8V LVDS frontend analog power
+
+  apvdd-supply:
+    description: 1.8V LVDS frontend PLL power
+
+  "#sound-dai-cells":
+    const: 0
+
+  ite,i2s-audio-fifo-sources:
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    minItems: 1
+    maxItems: 4
+    items:
+      enum: [0, 1, 2, 3]
+    description:
+      Each array element indicates the pin number of an I2S serial data input
+      line which is connected to an audio FIFO, from audio FIFO0 to FIFO3.
+
+  ite,rl-channel-swap-audio-sources:
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    minItems: 1
+    maxItems: 4
+    uniqueItems: true
+    items:
+      enum: [0, 1, 2, 3]
+    description:
+      Each array element indicates an audio source whose right channel and left
+      channel are swapped by this converter. For I2S, the element is the pin
+      number of an I2S serial data input line. For S/PDIF, the element is always
+      0.
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port@0: true
+
+      port@1:
+        oneOf:
+          - required: [dual-lvds-odd-pixels]
+          - required: [dual-lvds-even-pixels]
+
+      port@2:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: video port for the HDMI output
+
+      port@3:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: sound input port
+
+    required:
+      - port@0
+      - port@2
+
+required:
+  - compatible
+  - reg
+  - data-mapping
+  - ivdd-supply
+  - ovdd-supply
+  - txavcc18-supply
+  - txavcc33-supply
+  - pvcc1-supply
+  - pvcc2-supply
+  - avcc-supply
+  - anvdd-supply
+  - apvdd-supply
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    /* single-link LVDS input */
+    #include <dt-bindings/gpio/gpio.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        hdmi@4c {
+            compatible = "ite,it6263";
+            reg = <0x4c>;
+            data-mapping = "jeida-24";
+            reset-gpios = <&gpio1 10 GPIO_ACTIVE_LOW>;
+            ivdd-supply = <&reg_buck5>;
+            ovdd-supply = <&reg_vext_3v3>;
+            txavcc18-supply = <&reg_buck5>;
+            txavcc33-supply = <&reg_vext_3v3>;
+            pvcc1-supply = <&reg_buck5>;
+            pvcc2-supply = <&reg_buck5>;
+            avcc-supply = <&reg_vext_3v3>;
+            anvdd-supply = <&reg_buck5>;
+            apvdd-supply = <&reg_buck5>;
+
+            ports {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                port@0 {
+                    reg = <0>;
+
+                    it6263_lvds_link1: endpoint {
+                        remote-endpoint = <&ldb_lvds_ch0>;
+                    };
+                };
+
+                port@2 {
+                    reg = <2>;
+
+                    it6263_out: endpoint {
+                        remote-endpoint = <&hdmi_in>;
+                    };
+                };
+            };
+        };
+    };
+
+  - |
+    /* dual-link LVDS input */
+    #include <dt-bindings/gpio/gpio.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        hdmi@4c {
+            compatible = "ite,it6263";
+            reg = <0x4c>;
+            data-mapping = "jeida-24";
+            reset-gpios = <&gpio1 10 GPIO_ACTIVE_LOW>;
+            ivdd-supply = <&reg_buck5>;
+            ovdd-supply = <&reg_vext_3v3>;
+            txavcc18-supply = <&reg_buck5>;
+            txavcc33-supply = <&reg_vext_3v3>;
+            pvcc1-supply = <&reg_buck5>;
+            pvcc2-supply = <&reg_buck5>;
+            avcc-supply = <&reg_vext_3v3>;
+            anvdd-supply = <&reg_buck5>;
+            apvdd-supply = <&reg_buck5>;
+
+            ports {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                port@0 {
+                    reg = <0>;
+                    dual-lvds-odd-pixels;
+
+                    it6263_lvds_link1_dual: endpoint {
+                        remote-endpoint = <&ldb_lvds_ch0>;
+                    };
+                };
+
+                port@1 {
+                    reg = <1>;
+                    dual-lvds-even-pixels;
+
+                    it6263_lvds_link2_dual: endpoint {
+                        remote-endpoint = <&ldb_lvds_ch1>;
+                    };
+                };
+
+                port@2 {
+                    reg = <2>;
+
+                    it6263_out_dual: endpoint {
+                        remote-endpoint = <&hdmi_in>;
+                    };
+                };
+            };
+        };
+    };
-- 
2.34.1