From patchwork Wed Dec 6 14:41:08 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Frieder Schrempf X-Patchwork-Id: 174610 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:bcd1:0:b0:403:3b70:6f57 with SMTP id r17csp4151646vqy; Wed, 6 Dec 2023 06:44:51 -0800 (PST) X-Google-Smtp-Source: AGHT+IGNbbPppBgKk1wWnLkjAAahdejhM6UOcxjmrmTOpAHUsBlMV2e7ka+CTeMyRW13gzKGoCvm X-Received: by 2002:a17:90b:1d07:b0:286:6cc1:3f15 with SMTP id on7-20020a17090b1d0700b002866cc13f15mr1026171pjb.76.1701873891276; Wed, 06 Dec 2023 06:44:51 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1701873891; cv=none; d=google.com; s=arc-20160816; b=tgLUMflfSaiw9m1/AumCWhl+v6/UAtdF/EjFpUNK4abP5BG9LwSwa5FET/Z6kmDwYL xA7JpEG2BF/7Dq8X7cmyOBKIMeP2b6fWSxcgJn32f0tC7B4kLBbbWhugxsuaBL+m+Cds VNDeKecilcIi68rfkksFTJzLc2FSyIfG3/mhpZKBJRImqqQfCX0hiVn2lAdjhuKTBTs0 5e1StYNW2ijSSRKtWNlrTHHlwFPlN59nYFC/PwoVcL8tgP5+Gftq9yUVzyITnCpApzhw d7iQpp+HzY774cLINKmY/W+auMdoLR6L495tDDUjaD08imJWooauqAX6bh21/wNIIxLt N/EQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=oeyirk30VzrJwXs/jPqp36nZYKhhaMWlQBYYBY4oDRg=; fh=5WBVB9KggvEUZrfL2cFjcxt7hrbLV0CECJcyvKKi3zA=; b=xG5FO5FA0kBrjHXJ/hOG9pn6nig5ZJJpuXlL5eSPR2s1pj+IbEDOtwbduAvUsiBk2W fH1gG/uJd/KrQMYrsqkfN/WI12Z61eMwGR0QHGSF23xayN7oxLcVP5fHNECBQd/UMNlN SpMO2bpovNBIttR3m/BbVJGEolyA26lESxqV8cI0i9VTUQrmAZzEZo7nWwyZBDJbIJZn OdCARQ4SfOcbO+7DJHGDaRa0kunvvQAbylR39XuvQTZafj29JKcUm4+vXdxoq2SlJWgm emcNRgGzrBIVDEUVIyEtGxhVZe8fBirARruO+Fky43DnzzBzk/PJqsU+4TjuU42MVjJ7 lcpQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@fris.de header.s=dkim header.b=g1WWld62; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:7 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=fris.de Received: from snail.vger.email (snail.vger.email. [2620:137:e000::3:7]) by mx.google.com with ESMTPS id cl18-20020a17090af69200b00286e5da4d84si2707564pjb.158.2023.12.06.06.44.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 06 Dec 2023 06:44:51 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:7 as permitted sender) client-ip=2620:137:e000::3:7; Authentication-Results: mx.google.com; dkim=pass header.i=@fris.de header.s=dkim header.b=g1WWld62; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:7 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=fris.de Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by snail.vger.email (Postfix) with ESMTP id 479F080291F6; Wed, 6 Dec 2023 06:44:50 -0800 (PST) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.11 at snail.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1379097AbjLFOog (ORCPT + 99 others); Wed, 6 Dec 2023 09:44:36 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53712 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1379077AbjLFOob (ORCPT ); Wed, 6 Dec 2023 09:44:31 -0500 Received: from mail.fris.de (mail.fris.de [116.203.77.234]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 98BFFD47; Wed, 6 Dec 2023 06:44:36 -0800 (PST) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 7F65BC00E1; Wed, 6 Dec 2023 15:44:34 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fris.de; s=dkim; t=1701873874; h=from:subject:date:message-id:to:cc:mime-version: content-transfer-encoding:in-reply-to:references; bh=oeyirk30VzrJwXs/jPqp36nZYKhhaMWlQBYYBY4oDRg=; b=g1WWld62zYcSAD+OzHDUgIIPySaYHRHD3moakIVOl50tfEtz4AHpTg3qiaOCmnsPrKyPFf VaTRdD3cNAhcP0Kq2+UuHEdfWmi8LQAdGHsVNm+/FwgPQRWKPDcLn5wK5q3+hIj5Y6JJ5s cuopLKS4SH+Jml0QA/RatdtlCiRNK7Ir2QEr2QDu21oLcm9+0oiTo7ILG7qjt3DmQTc2Fg MhUn4XCSs5JXnCkGeU6gZqdn/EODiYEkrf1+n3EkfSy2E8DkEjNNZ1NWr+c8iCEa1E0kJP d7MYkrumx05ifhqit1q0Tfaa6I7h+NXixOgENGeqTZ76MkikgN05ASMXMgLbjw== From: Frieder Schrempf To: Conor Dooley , devicetree@vger.kernel.org, Frieder Schrempf , Krzysztof Kozlowski , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Rob Herring , Sascha Hauer , Shawn Guo Cc: Fabio Estevam , NXP Linux Team , Pengutronix Kernel Team Subject: [PATCH v3 05/14] arm64: dts: imx8mm-kontron: Disable pullups for onboard UART signals on BL OSM-S board Date: Wed, 6 Dec 2023 15:41:08 +0100 Message-ID: <20231206144201.46911-6-frieder@fris.de> In-Reply-To: <20231206144201.46911-1-frieder@fris.de> References: <20231206144201.46911-1-frieder@fris.de> MIME-Version: 1.0 X-Last-TLS-Session-Version: TLSv1.3 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_BLOCKED, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (snail.vger.email [0.0.0.0]); Wed, 06 Dec 2023 06:44:50 -0800 (PST) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1784544117380854917 X-GMAIL-MSGID: 1784544117380854917 From: Frieder Schrempf These signals are actively driven by the SoC or by the onboard transceiver. There's no need to enable the internal pull resistors and due to silicon errata ERR050080 let's disable the internal ones to prevent any unwanted behavior in case they wear out. Fixes: de9618e84f76 ("arm64: dts: Add support for Kontron SL/BL i.MX8MM OSM-S") Signed-off-by: Frieder Schrempf --- Changes for v3: * none Changes for v2: * none --- .../dts/freescale/imx8mm-kontron-bl-osm-s.dts | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl-osm-s.dts b/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl-osm-s.dts index 0730c22e5b6b9..1dd03ef0a7835 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl-osm-s.dts +++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl-osm-s.dts @@ -313,19 +313,19 @@ MX8MM_IOMUXC_SAI5_MCLK_GPIO3_IO25 0x19 pinctrl_uart1: uart1grp { fsl,pins = < - MX8MM_IOMUXC_SAI2_RXC_UART1_DCE_RX 0x140 - MX8MM_IOMUXC_SAI2_RXFS_UART1_DCE_TX 0x140 - MX8MM_IOMUXC_SAI2_RXD0_UART1_DCE_RTS_B 0x140 - MX8MM_IOMUXC_SAI2_TXFS_UART1_DCE_CTS_B 0x140 + MX8MM_IOMUXC_SAI2_RXC_UART1_DCE_RX 0x0 + MX8MM_IOMUXC_SAI2_RXFS_UART1_DCE_TX 0x0 + MX8MM_IOMUXC_SAI2_RXD0_UART1_DCE_RTS_B 0x0 + MX8MM_IOMUXC_SAI2_TXFS_UART1_DCE_CTS_B 0x0 >; }; pinctrl_uart2: uart2grp { fsl,pins = < - MX8MM_IOMUXC_SAI3_TXFS_UART2_DCE_RX 0x140 - MX8MM_IOMUXC_SAI3_TXC_UART2_DCE_TX 0x140 - MX8MM_IOMUXC_SAI3_RXD_UART2_DCE_RTS_B 0x140 - MX8MM_IOMUXC_SAI3_RXC_UART2_DCE_CTS_B 0x140 + MX8MM_IOMUXC_SAI3_TXFS_UART2_DCE_RX 0x0 + MX8MM_IOMUXC_SAI3_TXC_UART2_DCE_TX 0x0 + MX8MM_IOMUXC_SAI3_RXD_UART2_DCE_RTS_B 0x0 + MX8MM_IOMUXC_SAI3_RXC_UART2_DCE_CTS_B 0x0 >; };