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Message-ID:
<TYWPR01MB113438FF29AB596E414D4D1E086762@TYWPR01MB11343.jpnprd01.prod.outlook.com>
Date: Mon, 30 Sep 2024 09:38:12 +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"
<devicetree@...r.kernel.org>, "linux-kernel@...r.kernel.org"
<linux-kernel@...r.kernel.org>, "imx@...ts.linux.dev" <imx@...ts.linux.dev>,
"linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>
CC: "andrzej.hajda@...el.com" <andrzej.hajda@...el.com>,
"neil.armstrong@...aro.org" <neil.armstrong@...aro.org>, "rfoss@...nel.org"
<rfoss@...nel.org>, laurent.pinchart <laurent.pinchart@...asonboard.com>,
"jonas@...boo.se" <jonas@...boo.se>, "jernej.skrabec@...il.com"
<jernej.skrabec@...il.com>, "maarten.lankhorst@...ux.intel.com"
<maarten.lankhorst@...ux.intel.com>, "mripard@...nel.org"
<mripard@...nel.org>, "tzimmermann@...e.de" <tzimmermann@...e.de>,
"airlied@...il.com" <airlied@...il.com>, "simona@...ll.ch" <simona@...ll.ch>,
"robh@...nel.org" <robh@...nel.org>, "krzk+dt@...nel.org"
<krzk+dt@...nel.org>, "conor+dt@...nel.org" <conor+dt@...nel.org>,
"shawnguo@...nel.org" <shawnguo@...nel.org>, "s.hauer@...gutronix.de"
<s.hauer@...gutronix.de>, "kernel@...gutronix.de" <kernel@...gutronix.de>,
"festevam@...il.com" <festevam@...il.com>, "catalin.marinas@....com"
<catalin.marinas@....com>, "will@...nel.org" <will@...nel.org>,
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"o.rempel@...gutronix.de" <o.rempel@...gutronix.de>, "y.moog@...tec.de"
<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: Liu Ying <victor.liu@....com>
> Sent: Monday, September 30, 2024 10:30 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,
>
> >
> >> -----Original Message-----
> >> From: Liu Ying <victor.liu@....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@...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.y
> >>>> +++ am
> >>>> +++ 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@....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?
> >>
> >> The single LVDS link has already been documented in this binding doc.
> >> Please find the "properties" above where only "port@0" and "port@2"
> >> are required.
> >
> > Maybe "the first LVDS input link"-->"Single LVDS input link" for single LVDS block??
>
> Nope.
>
> I tested single LVDS link with the second LVDS link. It didn't work.
> The single LVDS link only works with the first LVDS link.
OK. That is the reason you made port@1 false.
Still port@0 is a single LVDS instance or first LVDS input link for the dual
LVDS configuration??
Cheers,
Biju
>
> >
> >>
> >> 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@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
> >>>> +
> >>>> +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
> >>>>
> >>>
> >>
> >> --
> >> Regards,
> >> Liu Ying
> >
>
> --
> Regards,
> Liu Ying
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