[PATCH 5/8] dt-bindings: display: bridge: Add ITE IT6263 LVDS to HDMI converter

Biju Das biju.das.jz at bp.renesas.com
Mon Sep 30 09:24:59 UTC 2024


Hi Liu,

> -----Original Message-----
> From: Liu Ying <victor.liu at nxp.com>
> Sent: Monday, September 30, 2024 10:16 AM
> Subject: Re: [PATCH 5/8] dt-bindings: display: bridge: Add ITE IT6263 LVDS to HDMI converter
> 
> 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.yam
> >> +++ l
> >> @@ -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.

Maybe "the first LVDS input link"-->"Single LVDS input link" for single LVDS block??

> 
> 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 = <&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 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 = <&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 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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