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Message-ID: <720548c9-bed8-4792-a323-90e472fd7404@nxp.com>
Date: Mon, 30 Sep 2024 17:30:00 +0800
From: Liu Ying <victor.liu@....com>
To: Biju Das <biju.das.jz@...renesas.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>,
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"jernej.skrabec@...il.com" <jernej.skrabec@...il.com>,
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"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>,
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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.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@....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.
>
>>
>> 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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