[PATCH 5/8] dt-bindings: display: bridge: Add ITE IT6263 LVDS to HDMI converter
Liu Ying
victor.liu at nxp.com
Mon Sep 30 09:16:03 UTC 2024
On 09/30/2024, Biju Das wrote:
> Hi Liu,
Hi Biju,
>
> thanks for the patch.
>
>> -----Original Message-----
>> From: linux-arm-kernel <linux-arm-kernel-bounces at lists.infradead.org> On Behalf Of Liu Ying
>> Sent: Monday, September 30, 2024 6:29 AM
>> Subject: [PATCH 5/8] dt-bindings: display: bridge: Add ITE IT6263 LVDS to HDMI converter
>>
>> 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 at nxp.com>
>> ---
>> .../bindings/display/bridge/ite,it6263.yaml | 310 ++++++++++++++++++
>> 1 file changed, 310 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..97fb81e5bc4a
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/display/bridge/ite,it6263.yaml
>> @@ -0,0 +1,310 @@
>> +# 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 at 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.
>> +
>> +properties:
>> + compatible:
>> + const: ite,it6263
>> +
>> + reg:
>> + maxItems: 1
>> +
>> + clocks:
>> + maxItems: 1
>> + description: audio master clock
>> +
>> + clock-names:
>> + const: mclk
>> +
>> + 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
>> +
>> + oneOf:
>> + - properties:
>> + port at 0:
>> + $ref: /schemas/graph.yaml#/properties/port
>> + description: the first LVDS input link
>> +
>> + port at 1: false
>> +
>> + port at 2:
>> + $ref: /schemas/graph.yaml#/properties/port
>> + description: video port for the HDMI output
>> +
>> + port at 3:
>> + $ref: /schemas/graph.yaml#/properties/port
>> + description: sound input port
>> +
>> + required:
>> + - port at 0
>> + - port at 2
>> +
>> + - properties:
>> + port at 0:
>> + $ref: /schemas/graph.yaml#/$defs/port-base
>> + unevaluatedProperties: false
>> + description: the first LVDS input link
>> +
>> + properties:
>> + dual-lvds-odd-pixels:
>> + type: boolean
>> + description: the first sink port for odd pixels
>> +
>> + dual-lvds-even-pixels:
>> + type: boolean
>> + description: the first sink port for even pixels
>> +
>> + oneOf:
>> + - required: [dual-lvds-odd-pixels]
>> + - required: [dual-lvds-even-pixels]
>> +
>> + port at 1:
>> + $ref: /schemas/graph.yaml#/$defs/port-base
>> + unevaluatedProperties: false
>> + description: the second LVDS input link
>> +
>> + properties:
>> + dual-lvds-even-pixels:
>> + type: boolean
>> + description: the second sink port for even pixels
>> +
>> + dual-lvds-odd-pixels:
>> + type: boolean
>> + description: the second sink port for odd pixels
>> +
>> + oneOf:
>> + - required: [dual-lvds-even-pixels]
>> + - required: [dual-lvds-odd-pixels]
>
>
>> +
>> + port at 2:
>> + $ref: /schemas/graph.yaml#/properties/port
>> + description: video port for the HDMI output
>> +
>> + port at 3:
>> + $ref: /schemas/graph.yaml#/properties/port
>> + description: sound input port
>
> What about single lvds as device support it?
The single LVDS link has already been documented in this binding doc.
Please find the "properties" above where only "port at 0" and "port at 2"
are required.
imx8mp-evk-lvds0-imx-lvds-hdmi.dtso and imx8mp-evk-lvds1-imx-lvds-hdmi.dtso
added in patch 7 support the NXP adapter card with single LVDS link.
>
> Cheers,
> Biju
>
>> +
>> + required:
>> + - port at 0
>> + - port at 1
>> + - port at 2
>> +
>> + allOf:
>> + - if:
>> + properties:
>> + port at 0:
>> + required:
>> + - dual-lvds-odd-pixels
>> + then:
>> + properties:
>> + port at 1:
>> + properties:
>> + dual-lvds-odd-pixels: false
>> +
>> + - if:
>> + properties:
>> + port at 0:
>> + required:
>> + - dual-lvds-even-pixels
>> + then:
>> + properties:
>> + port at 1:
>> + properties:
>> + dual-lvds-even-pixels: false
>> +
>> +required:
>> + - compatible
>> + - reg
>> + - ivdd-supply
>> + - ovdd-supply
>> + - txavcc18-supply
>> + - txavcc33-supply
>> + - pvcc1-supply
>> + - pvcc2-supply
>> + - avcc-supply
>> + - anvdd-supply
>> + - apvdd-supply
>> + - ports
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> + - |
>> + /* single-link LVDS input */
>> + #include <dt-bindings/gpio/gpio.h>
>> +
>> + i2c {
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> +
>> + hdmi at 4c {
>> + compatible = "ite,it6263";
>> + reg = <0x4c>;
>> + reset-gpios = <&gpio1 10 GPIO_ACTIVE_LOW>;
>> + ivdd-supply = <®_buck5>;
>> + ovdd-supply = <®_vext_3v3>;
>> + txavcc18-supply = <®_buck5>;
>> + txavcc33-supply = <®_vext_3v3>;
>> + pvcc1-supply = <®_buck5>;
>> + pvcc2-supply = <®_buck5>;
>> + avcc-supply = <®_vext_3v3>;
>> + anvdd-supply = <®_buck5>;
>> + apvdd-supply = <®_buck5>;
>> +
>> + ports {
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> +
>> + port at 0 {
>> + reg = <0>;
>> +
>> + it6263_lvds_link1: endpoint {
>> + remote-endpoint = <&ldb_lvds_ch0>;
>> + };
>> + };
>> +
>> + port at 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 at 4c {
>> + compatible = "ite,it6263";
>> + reg = <0x4c>;
>> + reset-gpios = <&gpio1 10 GPIO_ACTIVE_LOW>;
>> + ivdd-supply = <®_buck5>;
>> + ovdd-supply = <®_vext_3v3>;
>> + txavcc18-supply = <®_buck5>;
>> + txavcc33-supply = <®_vext_3v3>;
>> + pvcc1-supply = <®_buck5>;
>> + pvcc2-supply = <®_buck5>;
>> + avcc-supply = <®_vext_3v3>;
>> + anvdd-supply = <®_buck5>;
>> + apvdd-supply = <®_buck5>;
>> +
>> + ports {
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> +
>> + port at 0 {
>> + reg = <0>;
>> + dual-lvds-odd-pixels;
>> +
>> + it6263_lvds_link1_dual: endpoint {
>> + remote-endpoint = <&ldb_lvds_ch0>;
>> + };
>> + };
>> +
>> + port at 1 {
>> + reg = <1>;
>> + dual-lvds-even-pixels;
>> +
>> + it6263_lvds_link2_dual: endpoint {
>> + remote-endpoint = <&ldb_lvds_ch1>;
>> + };
>> + };
>> +
>> + port at 2 {
>> + reg = <2>;
>> +
>> + it6263_out_dual: endpoint {
>> + remote-endpoint = <&hdmi_in>;
>> + };
>> + };
>> + };
>> + };
>> + };
>> --
>> 2.34.1
>>
>
--
Regards,
Liu Ying
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