From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from OSPPR02CU001.outbound.protection.outlook.com (mail-norwayeastazon11013025.outbound.protection.outlook.com [40.107.159.25]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DF73123E330; Fri, 27 Mar 2026 16:51:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.159.25 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774630299; cv=fail; b=Mry4/kuRcnQUPkePrfHwc7AMmpGDp4ECHgaetANa76oras4PZnxivB0EMHdMWGyZpLU2e/czzH/+DYLfrcDcfzzjl339URYyYtSDjC1Wn2nI7manRUQJFev0MN2ZjrQc0cvr+l15x3GGTadnQxYOCiIsOTeaHiPY9QX4omDtcYc= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774630299; c=relaxed/simple; bh=vX7lmAsrLzhbDbtZiQEzZPS36nPZt2BTZKw0w1VYXcU=; h=Date:From:To:Cc:Subject:Message-ID:References:Content-Type: Content-Disposition:In-Reply-To:MIME-Version; b=Kqbzutjctzx+oCExxEhXu5YSSiY7dq4z29UydFYv6tCgD7TeLs7TYhneP35l3TZLudETCiVdfta4wBA8uVRqtCz+LvtwoZAyzT79g925JTG8Jx7WoTGK7SYOLB6mcuDNW7WXGvKZDIK489Uwgoizx8pQhsrW4wrmL7aPbA8iP4c= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=nxp.com; spf=pass smtp.mailfrom=nxp.com; dkim=pass (2048-bit key) header.d=nxp.com header.i=@nxp.com header.b=nUc0F3Ha; arc=fail smtp.client-ip=40.107.159.25 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=nxp.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=nxp.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=nxp.com header.i=@nxp.com header.b="nUc0F3Ha" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=uvnqd/dFdtdNDkNj3fVz9McZA+j6cLGVURct4qzB9Cq0iOktIzsMSgdpmRoPoTOupB+9MfNjBtv5dqLpfZNvvmxSf5DMiPMUC+zoTLAistuE9dfkoyHiufSE5ml8tbUvng4BHvtXYDGgRYBsnT8uACYFeAXxStkiKqtTdHvK5EabyNsI01yLF4ya0ndrj1y89FZeJgzGn8II8kkEzkAOtbqvSMmXFxoVRwPfxyPwspqgYldczZpAw98sAEyW9EuTuVxckv1jxAwUsEeHTOoLB+aPrSMTRa4ZDAYi3W2/PqbrEUeJFUwGb2Sr58y0Kkuc1bn8UKfSVstRXqQALIhKFQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=L1hDdogGyke8gjtXhD5G24n+MAtBJfTvduOJGOs653E=; b=BQ1dsoapAN4P/X0eg+Zqai4KcR6xnvFU0Usj/gPfE8ITj0dUpWuOi6QRErLv3chuzViQUB3cOyO7T87DIrg0uU1FrkZPfvPASAEGBo1s3f7HVTEEzy+n2ZG5ynkijTUAWSjCGtf3p4L7bI4f6CFIUwmlxg5cYdlz7CUCYN9DAEAcck4C5fSfB5Yaq7wRrBINTeAi5AwziEQlprtgvR04VYcJlz94JX1iPOsMlfsAQfHHWGiafeQNipu3jne6nYnlBEF4PdbK31pyUcEP8j1/rPJosnStDfC7vPf4GG5EFkyMnWClhKzHd6pPypgHe7iphkCIai1Leah9rdfh9YoMzQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nxp.com; dmarc=pass action=none header.from=nxp.com; dkim=pass header.d=nxp.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nxp.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=L1hDdogGyke8gjtXhD5G24n+MAtBJfTvduOJGOs653E=; b=nUc0F3HaPTVBo6rXIALzpDRb0gKHRMGrf46LDDOSeDFMcnL35Ft+Pmnm0DWuWOZRHA39OrsClpvIjOWNfMXMc0w/+YLdz1eZlnoLhVpZxh0qqXf2/102KuBjvwh66c17ijCPmLZq7RydLAXApCzLnccFlBRt2jDuLx3JmCHglHdEz9g36Q4CjRudEPDDgSoSq9ZXWhjzYKdAR/XC3855AB2JVYywUYmcSh5eMqndi5uLchwy3odPrP7ZCkZqUhEi7BPdg37swn2j0EJaTFpS6bBzANFhh5ryazXGToFsTsoYZZp5zeA8U3U4mHDwGqrl+HIgm67dfNXyy7GGC2ZG5g== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nxp.com; Received: from PA4PR04MB9366.eurprd04.prod.outlook.com (2603:10a6:102:2a9::8) by GVXPR04MB10070.eurprd04.prod.outlook.com (2603:10a6:150:11d::15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9745.23; Fri, 27 Mar 2026 16:51:32 +0000 Received: from PA4PR04MB9366.eurprd04.prod.outlook.com ([fe80::75e4:8143:ddbc:6588]) by PA4PR04MB9366.eurprd04.prod.outlook.com ([fe80::75e4:8143:ddbc:6588%6]) with mapi id 15.20.9745.023; Fri, 27 Mar 2026 16:51:32 +0000 Date: Fri, 27 Mar 2026 12:51:25 -0400 From: Frank Li To: Stefano Radaelli Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, pierluigi.p@variscite.com, Stefano Radaelli , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam Subject: Re: [PATCH v1 1/1] arm64: dts: imx91-var-dart-sonata: add RGB select supply for PCA6408 Message-ID: References: <20260327163243.17334-1-stefano.r@variscite.com> Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260327163243.17334-1-stefano.r@variscite.com> X-ClientProxiedBy: PH7PR17CA0070.namprd17.prod.outlook.com (2603:10b6:510:325::10) To PA4PR04MB9366.eurprd04.prod.outlook.com (2603:10a6:102:2a9::8) Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PA4PR04MB9366:EE_|GVXPR04MB10070:EE_ X-MS-Office365-Filtering-Correlation-Id: c5abf95b-b214-4afe-e17f-08de8c2119ba X-LD-Processed: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635,ExtAddr X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|366016|52116014|376014|7416014|19092799006|38350700014|56012099003|22082099003|18002099003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:PA4PR04MB9366.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(1800799024)(366016)(52116014)(376014)(7416014)(19092799006)(38350700014)(56012099003)(22082099003)(18002099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?zEgh3icof8zclBdtlUSu1XAJtvfsbKZ1zmMUFBKeaCR3FSP2r1G/sU9ZgpJH?= =?us-ascii?Q?ZeHjQTNf9LDCgmfPgQDyb+H50OongQlxlH7n2V0mKiHOYtF4MGPSYhqEUKLC?= =?us-ascii?Q?M7K8v8cOPwTj8rvLDI9IKsM3V2OwfpvqgDGlL6SFyfeK5UWcVlbL2Tbt4bKU?= =?us-ascii?Q?f/aUeRAVicWa+2VBP4NKJvZDSkzHQZHrybQfjNjlUR9OTh2/1lvE4mRy1+tC?= =?us-ascii?Q?PRJOMj+089SL42Y9KOCYhQHhNarUqflVN+ZrqKh9O9ocs6oKX9uzJGvdVnUh?= =?us-ascii?Q?WpicRCUzK3j3l/hs8Me2hF2M2LOizKEOZVTMg8VIJOCP21RENg1/k36PmiI5?= =?us-ascii?Q?hWGLo20edTNWhWcAt0PG1KIMlsFV1Ee9SsQ/hIg4NTLhZ1VuJlrlxP/F1oct?= =?us-ascii?Q?TFSF8xBr7jwmGunfKKFwxgpfAwA8cppmqMeulj3rNtC8qi/YONitZjaAMq/a?= =?us-ascii?Q?h2bu8CCLI/H45sn078OLXBw/5/dRMpsZkRBgzo8iVFOAVHH7K0IbB7jUa2Yq?= =?us-ascii?Q?ePuGIIoEV2DPHKacRnhQb73xkgKVSCEqLax2J6dUx4PZIafhhFrvJC8YF1uz?= =?us-ascii?Q?YaxpAJj0U4VbxMTHJkh7G84pt4P2gvSrBJFx601Vc6jzepgt3riJyu5CSMaz?= =?us-ascii?Q?ZdXpFXmwv7yr1qZDjToPEM0azVqsSS1QqLmPCjfEp1G8fsVNbnodGbsx/W8e?= =?us-ascii?Q?lu7h/LjJHyZdsukvKXNfOc7EqkagkTg7JGuhCIrCRJ4De/lRD5p/hf90jIgk?= =?us-ascii?Q?iMVGjtvshFfCozoQrXX/GtWHb8otfGr08ErXewBTmivFwWmABRh/pDzpRx7B?= =?us-ascii?Q?03IJXQfC26ntDG6/z+KJ4MA0deDQJilI6zkf13iZNEBCSErykJsugu1CNdIN?= =?us-ascii?Q?bU/0D7KSHcUhiF/PLCCGdFjueOyoeMVubQlGK21ioJdrsU7OQWGJT/kNIWRw?= =?us-ascii?Q?xg39UQbg+c7jC+Zfv1hwXdyoQhUXFInSn8kwebslMfb109DlrIYkJ4uXUnBK?= =?us-ascii?Q?AwkzpyNoL0h6I82G2IJuTOG+/YmSMz/oMq60IfQUCQ0WZeGL9MwoiBv7Hj6b?= =?us-ascii?Q?Ox5nzBYjAlFeShQrORfzawGRKxpgxgVwCoH7qGHD0jzjtENH6lbmGYODcZwk?= =?us-ascii?Q?H0F5wrjsvUzfULfBxG3EOXerIqJon6BuoD9X4HgDUPqL5in/hL5lI7jlteqs?= =?us-ascii?Q?QmxXzZFXOGxkPJAp8T7pzk02vH+dmdogg2V4WZkUSlVygcGqUaVyAaMJdpNK?= =?us-ascii?Q?TPvaPRRL3ADSeLMt2o4OU0YhBRB1b+f1DDJGtDNNbGtmRByvTdp4JPicTae2?= =?us-ascii?Q?u2dPJhxek0V/Q8eRl5xAWiJ6nKKbdc+z+uS/2EJ/TY0gY2xF2+53f1X/JuXX?= =?us-ascii?Q?pvR9OGajMTrAnlN5mcotr9jdwA4aBHEzF3SrR77YtfYgWNEdKDJyiim110kL?= =?us-ascii?Q?4i+DKQXUHvc7T5eI1LIkiCBGL9B7sYnVQZIyTQ22XvWo3f1EBT1OK3z3xFIQ?= =?us-ascii?Q?+kmcJOLGqezzlwMAsFMBHN3qt2CiyN8lJjH3BABASv1SIWHW3ZuZiEFcR12Q?= =?us-ascii?Q?xHS5vUMx/JyYL1RuRRj67NPFoYE3MYvVlcm+iJNrOsRl3JknsfoLr7BWegdO?= =?us-ascii?Q?Y4fhcfnlVAmtN0vDwgy3MyiybWlw5Roj2nOscDjjCO2yPDrZ2LzCDSVB0vhR?= =?us-ascii?Q?Gbc6IOC2sKz7IToiJMOwJySypgRtv+XtZK5r7JdAMh+l/osLwBCf3QupjAFJ?= =?us-ascii?Q?+UyvGqmFiw=3D=3D?= X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: c5abf95b-b214-4afe-e17f-08de8c2119ba X-MS-Exchange-CrossTenant-AuthSource: PA4PR04MB9366.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 Mar 2026 16:51:32.7758 (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: 0ORFiIZ4oyw6toKJytwg97IMcO1CCippfxtwVDIo4+sl8gtUpPfiArluyKlOq9Iz9B52yFDFd5JsbKsAeX6ibg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: GVXPR04MB10070 On Fri, Mar 27, 2026 at 05:32:43PM +0100, Stefano Radaelli wrote: > From: Stefano Radaelli > > RGB_SEL controls the routing of some carrier board lines on the Sonata > board. The two PCA6408 GPIO expanders depend on that path being enabled, > so describe the selector as a fixed regulator and use it as their > vcc-supply. Does below resolve your problem? https://lore.kernel.org/imx/20260325-pinctrl-mux-v4-0-043c2c82e623@nxp.com/ So needn't hack select as regualtor Frank > > Signed-off-by: Stefano Radaelli > --- > arch/arm64/boot/dts/freescale/imx91-var-dart-sonata.dts | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/arch/arm64/boot/dts/freescale/imx91-var-dart-sonata.dts b/arch/arm64/boot/dts/freescale/imx91-var-dart-sonata.dts > index afa39dab240a..3b5816884f24 100644 > --- a/arch/arm64/boot/dts/freescale/imx91-var-dart-sonata.dts > +++ b/arch/arm64/boot/dts/freescale/imx91-var-dart-sonata.dts > @@ -90,6 +90,13 @@ reg_vref_1v8: regulator-adc-vref { > regulator-max-microvolt = <1800000>; > }; > > + reg_rgb_sel: regulator-rgb-sel { > + compatible = "regulator-fixed"; > + regulator-name = "rgb-select"; > + gpio = <&pca9534 7 GPIO_ACTIVE_HIGH>; > + enable-active-high; > + }; > + > reg_usdhc2_vmmc: regulator-vmmc-usdhc2 { > compatible = "regulator-fixed"; > pinctrl-names = "default"; > @@ -195,6 +202,7 @@ pca6408_1: gpio@20 { > #gpio-cells = <2>; > interrupt-parent = <&gpio1>; > interrupts = <10 IRQ_TYPE_LEVEL_LOW>; > + vcc-supply = <®_rgb_sel>; > }; > > pca6408_2: gpio@21 { > @@ -204,6 +212,7 @@ pca6408_2: gpio@21 { > #gpio-cells = <2>; > interrupt-parent = <&gpio1>; > interrupts = <10 IRQ_TYPE_LEVEL_LOW>; > + vcc-supply = <®_rgb_sel>; > }; > > pca9534: gpio@22 { > -- > 2.47.3 >