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2024 17:48:41 +0800 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 5/8] dt-bindings: display: bridge: Add ITE IT6263 LVDS to HDMI converter To: Biju Das , "dri-devel@lists.freedesktop.org" , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "imx@lists.linux.dev" , "linux-arm-kernel@lists.infradead.org" Cc: "andrzej.hajda@intel.com" , "neil.armstrong@linaro.org" , "rfoss@kernel.org" , "laurent.pinchart" , "jonas@kwiboo.se" , "jernej.skrabec@gmail.com" , "maarten.lankhorst@linux.intel.com" , "mripard@kernel.org" , "tzimmermann@suse.de" , "airlied@gmail.com" , "simona@ffwll.ch" , "robh@kernel.org" , "krzk+dt@kernel.org" , "conor+dt@kernel.org" , "shawnguo@kernel.org" , "s.hauer@pengutronix.de" , "kernel@pengutronix.de" , "festevam@gmail.com" , "catalin.marinas@arm.com" , "will@kernel.org" , "quic_bjorande@quicinc.com" , "geert+renesas@glider.be" , "dmitry.baryshkov@linaro.org" , "arnd@arndb.de" , "nfraprado@collabora.com" , "o.rempel@pengutronix.de" , "y.moog@phytec.de" 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=?utf-8?B?Z0RDMVRwTGdYY2RoVitrRW1aSE9JMFhKd1F3K2p3dEF5cklUQzhUYXJyd01p?= =?utf-8?B?czhleDMwQWlLRVVkZy9SUk9jWktqbi9nWVVoeEZzQ1gyQnh4UXMveFdRZks4?= =?utf-8?Q?5P+rP6yrhjWs4n1iaGyD6Appv?= X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 979d6d15-e4d3-4b02-4f8d-08dce1350206 X-MS-Exchange-CrossTenant-AuthSource: AM7PR04MB7046.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 30 Sep 2024 09:48:16.4634 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: Cs28+blse4poIg2ygojeY1D542bMTxkzPbcrB8oLpjsfAXktasSLMdwqzifItOTI7eI5BeuTHAGjMzEK+Htstg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PAXPR04MB9399 On 09/30/2024, Biju Das wrote: > Hi Liu, Hi Biju, > >> -----Original Message----- >> From: Liu Ying >> 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 >>>> 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 >>>>>> >>>>>> 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 >>>>>> --- >>>>>> .../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 >>>>>> + >>>>>> +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. Yes. > > Still port@0 is a single LVDS instance or first LVDS input link for the dual > LVDS configuration?? "port@0" always represents the first LVDS link and "port@1" always represents the second LVDS link, no matter it's a single-link LVDS or a dual-link LVDS. Which one is the first/second LVDS link? See "LVDS front-end interface pin" in IT6263 data sheet[1] where first/second are defined. [1] http://static6.arrow.com/aropdfconversion/a2ecd2a29274cf0bfb3f3c829ef224c5838fe144/it6263fn.pdf > > 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 >>>>>> + >>>>>> + 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 >>>>>> + >>>>>> + 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 > -- Regards, Liu Ying