From patchwork Thu Nov 30 16:16:05 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Frieder Schrempf X-Patchwork-Id: 171984 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:bcd1:0:b0:403:3b70:6f57 with SMTP id r17csp506410vqy; Thu, 30 Nov 2023 08:19:25 -0800 (PST) X-Google-Smtp-Source: AGHT+IGiBsbsEt/XhWgBlA/iMuTE4tyO+hscgpPIH3VSRJk5sYD78xhmTwflKTjBgRh+pgl0xIsn X-Received: by 2002:a17:902:e54b:b0:1cf:5c9c:7979 with SMTP id n11-20020a170902e54b00b001cf5c9c7979mr28154551plf.42.1701361165012; Thu, 30 Nov 2023 08:19:25 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1701361164; cv=none; d=google.com; s=arc-20160816; b=pL2qNnMTOnDky1HbCMx3i2hNQRZzir7uFgMm+LEvXospO8aOnFvylkKz8YfwPh9PXd yXVrLn+c/hRdldifMymperWgouKPGbRXrdb/4GgG7myxSSyjFSl1ghWDuYd6dWpZWbV8 +gJKrQZH5ZAZYYeLg03H6tib5qYs/dYtcLw/kPQ0myWsUAqxFHjRF+PwH8eIcWcFT+1K xUyqvQ23EA4hKBI0JY9FMgoe2MywNE8B6SQqAnWQDsnlGzTOl95J52vrrQVXXTeEwKFj m0/uBaxnQJ4fBCO8zuhyGg9T0x3pgFqDhe9w54wkw/g2HXjEWOqPnkyHCWUMSAGhIbU8 tQTA== 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=FWmRsZBPeCXE6vjeXku2odgdbDKh17lvQDeEaVqehTE=; fh=5WBVB9KggvEUZrfL2cFjcxt7hrbLV0CECJcyvKKi3zA=; b=AI8tWOuHMYKSDLAGOOuUymEfem2yUNWF8pnVRBfUKfEoY39WSmtZqihbjQPwZWVxLp 0f3VEAj1fMy2yRUcHnWbPdkXEZWPlQpekcbLak1i8Bh0QKh98mAvoT7xQ8k1m5z/yVS4 4BYNUC0fdCr2MWTgpadZm08gp7IPDFc7oYgDMmLrz31zY3O7a0S8WmT2nQyQMPMtDS9K K6N4f5m2VYVBDExy7YjeiBA5K4jA0fgK0Dc8RhhOxfbVTft7UNDBWx/YIbL0k+8J3Faj QSeaYVoUVSeN/FrK2sTu1nHV9dfYlbFN+0PE5Yp2iWMCBCVNggI93poScsd2qwqcGUc2 SOfw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@fris.de header.s=dkim header.b=Z7NP5Rpa; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.33 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 lipwig.vger.email (lipwig.vger.email. [23.128.96.33]) by mx.google.com with ESMTPS id e6-20020a170902b78600b001d04b44859asi122908pls.31.2023.11.30.08.19.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 30 Nov 2023 08:19:24 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.33 as permitted sender) client-ip=23.128.96.33; Authentication-Results: mx.google.com; dkim=pass header.i=@fris.de header.s=dkim header.b=Z7NP5Rpa; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.33 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 lipwig.vger.email (Postfix) with ESMTP id 7F79B802956C; Thu, 30 Nov 2023 08:19:22 -0800 (PST) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.11 at lipwig.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235186AbjK3QSy (ORCPT + 99 others); Thu, 30 Nov 2023 11:18:54 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38316 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232161AbjK3QSh (ORCPT ); Thu, 30 Nov 2023 11:18:37 -0500 Received: from mail.fris.de (unknown [IPv6:2a01:4f8:c2c:390b::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 67AB110DB; Thu, 30 Nov 2023 08:18:43 -0800 (PST) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 82E6DC0299; Thu, 30 Nov 2023 17:18:41 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fris.de; s=dkim; t=1701361121; h=from:subject:date:message-id:to:cc:mime-version: content-transfer-encoding:in-reply-to:references; bh=FWmRsZBPeCXE6vjeXku2odgdbDKh17lvQDeEaVqehTE=; b=Z7NP5RpaTw3MIjxwsmnte30n+WOZ2rGGmHahxck8cwPNrw08b52Rkwm5hjXPiAOeYPjTvI gh01KjutQ82a4X6+C9kv/iDqpeGApPUh6QIgTSaqg/I9SNNH8j/Vcc6kk5ii3BCpR5gd3H 67idbuqWEGB6TIinyJDNNcPQbyQoqMykezHtkwfxaCb5u60QvQC1xqMP5RAU58mx8LfxBP JypY490vgvfxyGH166OnCwPSufOp6MGj+1reSjsmYb3VUloppm6688tJNeGdHzwisCXZqM eBhXkYvT4e0bbnC9Ligf8hN6bRJvzPBG4mfCMn+2WQMuPJ+lVAejPxXB3KYvlA== 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 v2 05/14] arm64: dts: imx8mm-kontron: Disable pullups for onboard UART signals on BL OSM-S board Date: Thu, 30 Nov 2023 17:16:05 +0100 Message-ID: <20231130161657.556483-6-frieder@fris.de> In-Reply-To: <20231130161657.556483-1-frieder@fris.de> References: <20231130161657.556483-1-frieder@fris.de> MIME-Version: 1.0 X-Last-TLS-Session-Version: TLSv1.3 X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lipwig.vger.email 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 (lipwig.vger.email [0.0.0.0]); Thu, 30 Nov 2023 08:19:22 -0800 (PST) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1784006484845391333 X-GMAIL-MSGID: 1784006484845391333 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 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 >; };