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Message-ID:
<TY3PR01MB113466D86F0CA0FA8FB9B866D86762@TY3PR01MB11346.jpnprd01.prod.outlook.com>
Date: Mon, 30 Sep 2024 13:18:55 +0000
From: Biju Das <biju.das.jz@...renesas.com>
To: Liu Ying <victor.liu@....com>, "dri-devel@...ts.freedesktop.org"
<dri-devel@...ts.freedesktop.org>, "devicetree@...r.kernel.org"
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<y.moog@...tec.de>
Subject: RE: [PATCH 5/8] dt-bindings: display: bridge: Add ITE IT6263 LVDS to
HDMI converter
Hi Liu,
> -----Original Message-----
> From: Biju Das
> Sent: Monday, September 30, 2024 10:04 AM
> Subject: RE: [PATCH 5/8] dt-bindings: display: bridge: Add ITE IT6263 LVDS to HDMI converter
>
> Hi Liu,
>
> thanks for the patch.
>
> > -----Original Message-----
> > From: linux-arm-kernel <linux-arm-kernel-bounces@...ts.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@....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@....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@0:
> > + $ref: /schemas/graph.yaml#/properties/port
> > + description: the first LVDS input link
> > +
> > + port@1: false
> > +
> > + 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
> > +
> > + - properties:
> > + port@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@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@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
>
> What about single lvds as device support it?
>
> Cheers,
> Biju
>
> > +
> > + required:
> > + - port@0
> > + - port@1
> > + - port@2
> > +
> > + allOf:
> > + - if:
> > + properties:
> > + port@0:
> > + required:
> > + - dual-lvds-odd-pixels
> > + then:
> > + properties:
> > + port@1:
> > + properties:
> > + dual-lvds-odd-pixels: false
> > +
> > + - if:
> > + properties:
> > + port@0:
> > + required:
> > + - dual-lvds-even-pixels
> > + then:
> > + properties:
> > + port@1:
> > + properties:
> > + dual-lvds-even-pixels: false
Do we need to document ite,data-mapping to support both VESA and JEIDA formats??
Or
Is there any run time info available to get this info? Currently,
I see it is hardcoded in driver.
Cheers,
Biju
> > +
> > +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@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@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>;
> > + 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@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
> >
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