From patchwork Sun Dec 12 13:49:12 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lucas Stach X-Patchwork-Id: 12695796 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 711ACC433F5 for ; Sun, 12 Dec 2021 13:51:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=yYTIon+6hph/f6+hMBjFZE/myBBBy3IxPni3OOOb0WE=; b=BhsixekhrhULV/ X6PIJP8R9fjlDL1ZLVXn3RCi9vJEyWddQBEUlH1FB2lJ6QAWVBXcK7QaqJVvU1GmQ4dAtxx0TDUcY 1FwSYj70LbymCbYrmHX1gn3yOvbjmnXRciyXcSoTTKKFMc900US6XShj0YvQsj9EkTy/vf+drxBso K2OEDdXV2Z46tkocA+Lth12OzUX0k7o5BNQ03NYOanRrfQKy6uYxyL37yDpoTBGvDu0bXD0uqvYCG YQMqBtRBU3iLbo7BkVUeZLwgYM/bC3g8IaHunHqnKXyWkj72/xb/jq0PI5GrhUr61oXLxnqMkKuzu GSmQ6O8Wotx7wpHetUBg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mwPEr-006b9h-Md; Sun, 12 Dec 2021 13:50:05 +0000 Received: from ns.lynxeye.de ([87.118.118.114] helo=lynxeye.de) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mwPEf-006b7f-1F for linux-arm-kernel@lists.infradead.org; Sun, 12 Dec 2021 13:49:54 +0000 Received: by lynxeye.de (Postfix, from userid 501) id AA39FE74214; Sun, 12 Dec 2021 14:49:20 +0100 (CET) Received: from astat.fritz.box (a89-183-66-37.net-htp.de [89.183.66.37]) by lynxeye.de (Postfix) with ESMTPA id 47CADE74217; Sun, 12 Dec 2021 14:49:18 +0100 (CET) From: Lucas Stach To: Shawn Guo Cc: Fabio Estevam , Pengutronix Kernel Team , NXP Linux Team , linux-arm-kernel@lists.infradead.org, "Lukas F . Hartmann" Subject: [PATCH 3/3] arm64: dts: nitrogen8-som: correct i2c1 pad-ctrl Date: Sun, 12 Dec 2021 14:49:12 +0100 Message-Id: <20211212134912.1988208-3-dev@lynxeye.de> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20211212134912.1988208-1-dev@lynxeye.de> References: <20211212134912.1988208-1-dev@lynxeye.de> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211212_054953_252009_EDA38215 X-CRM114-Status: GOOD ( 11.17 ) 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 The slew rate and drive-strength of the i2c1 pads were much too high. Bring them down to avoid signal quality issues. Signed-off-by: Lucas Stach --- arch/arm64/boot/dts/freescale/imx8mq-nitrogen-som.dtsi | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mq-nitrogen-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-nitrogen-som.dtsi index 5f27d3a17ddb..395f77b5aca7 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq-nitrogen-som.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mq-nitrogen-som.dtsi @@ -206,8 +206,8 @@ MX8MQ_IOMUXC_GPIO1_IO11_GPIO1_IO11 0x41 pinctrl_i2c1: i2c1grp { fsl,pins = < - MX8MQ_IOMUXC_I2C1_SCL_I2C1_SCL 0x4000007f - MX8MQ_IOMUXC_I2C1_SDA_I2C1_SDA 0x4000007f + MX8MQ_IOMUXC_I2C1_SCL_I2C1_SCL 0x40000022 + MX8MQ_IOMUXC_I2C1_SDA_I2C1_SDA 0x40000022 >; };