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<5ce48659-2c6c-4c60-a8e8-9031bdbaa2a3@nxp.com> Date: Wed, 8 Apr 2026 16:40:37 +0800 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] arm64: dts: imx93-9x9-qsb: Add tianma,tm050rdh03 panel To: Frank Li Cc: Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Rob Herring , Krzysztof Kozlowski , Conor Dooley , imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260407-tianma-tm050rdh03-imx93-9x9-qsb-v1-1-24d514a62fdc@nxp.com> From: Liu Ying Content-Language: en-US In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-ClientProxiedBy: MA5P287CA0182.INDP287.PROD.OUTLOOK.COM (2603:1096:a01:1b6::17) To AM7PR04MB7046.eurprd04.prod.outlook.com (2603:10a6:20b:113::22) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AM7PR04MB7046:EE_|DBAPR04MB7381:EE_ X-MS-Office365-Filtering-Correlation-Id: 09a33104-c9ac-4d63-a299-08de954a52d7 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X-MS-Exchange-Transport-CrossTenantHeadersStamped: DBAPR04MB7381 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260408_013924_857666_C7FCACF1 X-CRM114-Status: GOOD ( 21.60 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Apr 08, 2026 at 04:28:40AM -0400, Frank Li wrote: > On Wed, Apr 08, 2026 at 04:08:24PM +0800, Liu Ying wrote: >> On Wed, Apr 08, 2026 at 03:58:59AM -0400, Frank Li wrote: >>> On Wed, Apr 08, 2026 at 02:02:54PM +0800, Liu Ying wrote: >>>> Hi Frank, >>>> >>>> On Tue, Apr 07, 2026 at 05:55:29AM -0400, Frank Li wrote: >>>>> On Tue, Apr 07, 2026 at 05:15:31PM +0800, Liu Ying wrote: >>>>>> Support tianma,tm050rdh03 DPI panel on i.MX93 9x9 QSB. >>>>>> >>>>>> The panel connects with the QSB board through an adapter board[1] >>>>>> designed by NXP. >>>>>> >>>>>> Link: https://www.nxp.com/design/design-center/development-boards-and-designs/parallel-lcd-display:TM050RDH03-41 [1] >>>>>> Signed-off-by: Liu Ying >>>>>> --- >>>>>> arch/arm64/boot/dts/freescale/Makefile | 2 + >>>>>> .../imx93-9x9-qsb-ontat-kd50g21-40nt-a1.dtsi | 110 +++++++++++++++++++++ >>>>>> .../imx93-9x9-qsb-ontat-kd50g21-40nt-a1.dtso | 106 +------------------- >>>>> >>>>> Can you add some description about raname in commit message? >>>> >>>> I'll add some description about the file copy in commit message. >>>> >>>>> Use -C option to create patch. >>>> >>>> Will do. >>>> >>>>> >>>>> ... >>>>>> diff --git a/arch/arm64/boot/dts/freescale/imx93-9x9-qsb-tianma-tm050rdh03.dtso b/arch/arm64/boot/dts/freescale/imx93-9x9-qsb-tianma-tm050rdh03.dtso >>>>>> new file mode 100644 >>>>>> index 000000000000..c233797ec28c >>>>>> --- /dev/null >>>>>> +++ b/arch/arm64/boot/dts/freescale/imx93-9x9-qsb-tianma-tm050rdh03.dtso >>>>>> @@ -0,0 +1,14 @@ >>>>>> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) >>>>>> +/* >>>>>> + * Copyright 2026 NXP >>>>>> + */ >>>>>> + >>>>>> +#include >>>>>> +#include "imx93-9x9-qsb-ontat-kd50g21-40nt-a1.dtsi" >>>>>> + >>>>>> +&{/} { >>>>>> + panel { >>>>>> + compatible = "tianma,tm050rdh03"; >>>>>> + enable-gpios = <&pcal6524 8 GPIO_ACTIVE_HIGH>; >>>>>> + }; >>>>>> +}; >>>>> >>>>> Is it possible to appply this overlay file and kd50g21-40nt-a1 overlay file >>>>> >>>>> to imx93-9x9-qsb.dtb, so needn't create dtsi. >>>> >>>> I'm sorry, I don't get your question here. >>>> Anyway, the DT overlays are needed, because the 40-pin EXP/PRI interface on >>>> the i.MX93 9x9 QSB board can not only connect to a DPI panel adapter board >>>> but also to an audio hat[2], and maybe more. The newly introduced .dtsi >>>> file just aims to avoid duplicated code. >>> >>> My means apply two overlay files to dtb >>> >>> imx93-9x9-qsb-tianma-tm050rdh03-dtbs += imx93-9x9-qsb.dtb imx93-9x9-qsb-ontat-kd50g21-40nt-a1.dtbo imx93-9x9-qsb-tianma-tm050rdh03.dtbo This ... >>> >>> In imx93-9x9-qsb-tianma-tm050rdh03.dtbo, only include >>> &{/} { >>> panel { >>> compatible = "tianma,tm050rdh03"; >>> enable-gpios = <&pcal6524 8 GPIO_ACTIVE_HIGH>; >>> }; >>> }; >> >> If an user wants to use imx93-9x9-qsb.dtb and the DT overlay blob >> imx93-9x9-qsb-tianma-tm050rdh03.dtbo to enable the tianma,tm050rdh03 >> DPI panel, then it won't work unless the user also apply >> imx93-9x9-qsb-ontat-kd50g21-40nt-a1.dtbo, right? >> >>> > > Yes, imx93-9x9-qsb-tianma-tm050rdh03.dtb already created, which already > applied both overlay file. .... indicates that imx93-9x9-qsb-tianma-tm050rdh03.dtb is generated by applying both imx93-9x9-qsb-ontat-kd50g21-40nt-a1.dtbo and imx93-9x9-qsb-tianma-tm050rdh03.dtbo to imx93-9x9-qsb.dtb. While, imx93-9x9-qsb-tianma-tm050rdh03.dtbo(a DT overlay blob) just contains the panel node, which means that an user __cannot_ enable the tianma,tm050rdh03 DPI panel by only applying it to imx93-9x9-qsb.dtb, unless the user also applies imx93-9x9-qsb-ontat-kd50g21-40nt-a1.dtbo. That's why the .dtsi file is needed. > > can the same board be use for imx91 or other evk boards? Yes, both tianma,tm050rdh03 and ontat,kd50g21-40nt-a1 DPI panels can be connected to i.MX91/93 11x11 EVK and 9x9 QSB boards. > > Frank > >>> Frank >>>> >>>> [2] https://www.nxp.com/design/design-center/development-boards-and-designs/mx93aud-hat-audio-board:MX93AUD-HAT >>>> >>>>> >>>>> Frank >>>>>> >>>>>> --- >>>>>> base-commit: 816f193dd0d95246f208590924dd962b192def78 >>>>>> change-id: 20260407-tianma-tm050rdh03-imx93-9x9-qsb-6e4bbbde3d08 >>>>>> >>>>>> Best regards, >>>>>> -- >>>>>> Liu Ying >>>>>> >>>> >>>> -- >>>> Regards, >>>> Liu Ying >> >> -- >> Regards, >> Liu Ying -- Regards, Liu Ying