From patchwork Mon Jan 25 18:47:33 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lucas Stach X-Patchwork-Id: 12043987 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8BDC5C433DB for ; Mon, 25 Jan 2021 18:49:47 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 53F932067B for ; Mon, 25 Jan 2021 18:49:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 53F932067B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=FT7ttz4g6aQmN8j/PspmiVcUd/Moxy5i6M9KXCfbnPo=; b=XPjv6iofPTiBoIR6s01+ntt20 5mTN5hRl89FrRBHRf///wMfj7brZIT2ILg3dzkWcNszaq8Y6QL5Fc3tNzTdu2BoXUhl1QtUwpuYH1 33tsjwiW/ZtGrkk4wnIisFfvWeLWXd4Hxpu8xhEel/k6cfatAsvJqpC2SkLCv2NsGomNF5HM+VFNN uikN5mgy7ogbyCksknUfbTIXeMq2c9L5t8CZQqNElkvK4KwfYX/cNsjFLiwyyTJqcVqO3wM6EkUau EKU+8rLnuwpFd3Nv5qoyZGhPmWXfTuLznt+V2X8PdHnE5r/RZMvO0y3EWcSWk4D4hORBJCj8/JzwW wb+0tzxTg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1l46uQ-0001w5-PI; Mon, 25 Jan 2021 18:48:18 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1l46tq-0001k8-CY for linux-arm-kernel@lists.infradead.org; Mon, 25 Jan 2021 18:47:46 +0000 Received: from [2a0a:edc0:0:1101:1d::39] (helo=dude03.red.stw.pengutronix.de) by metis.ext.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1l46tn-0007Cg-GJ; Mon, 25 Jan 2021 19:47:39 +0100 From: Lucas Stach To: Shawn Guo Subject: [PATCH 07/10] arm64: dts: zii-ultra: fix i2c pin configuration Date: Mon, 25 Jan 2021 19:47:33 +0100 Message-Id: <20210125184736.1226435-7-l.stach@pengutronix.de> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210125184736.1226435-1-l.stach@pengutronix.de> References: <20210125184736.1226435-1-l.stach@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:1101:1d::39 X-SA-Exim-Mail-From: l.stach@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210125_134742_476019_9BFFABFC X-CRM114-Status: GOOD ( 10.83 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Fabio Estevam , kernel@pengutronix.de, linux-arm-kernel@lists.infradead.org, patchwork-lst@pengutronix.de Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Reduce slew rate and set drive strength to 105 Ohm. The previous settings had some issues with signal ringing, due to the slew rate being too fast. Signed-off-by: Lucas Stach --- .../boot/dts/freescale/imx8mq-zii-ultra.dtsi | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi index e6469e15bcbd..aa05d5fd1b3b 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi @@ -661,29 +661,29 @@ 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 0x400000a2 >; }; pinctrl_i2c2: i2c2grp { fsl,pins = < - MX8MQ_IOMUXC_I2C2_SCL_I2C2_SCL 0x4000007f - MX8MQ_IOMUXC_I2C2_SDA_I2C2_SDA 0x4000007f + MX8MQ_IOMUXC_I2C2_SCL_I2C2_SCL 0x40000022 + MX8MQ_IOMUXC_I2C2_SDA_I2C2_SDA 0x400000a2 >; }; pinctrl_i2c3: i2c3grp { fsl,pins = < - MX8MQ_IOMUXC_I2C3_SCL_I2C3_SCL 0x4000007f - MX8MQ_IOMUXC_I2C3_SDA_I2C3_SDA 0x4000007f + MX8MQ_IOMUXC_I2C3_SCL_I2C3_SCL 0x40000022 + MX8MQ_IOMUXC_I2C3_SDA_I2C3_SDA 0x400000a2 >; }; pinctrl_i2c4: i2c4grp { fsl,pins = < - MX8MQ_IOMUXC_I2C4_SCL_I2C4_SCL 0x4000007f - MX8MQ_IOMUXC_I2C4_SDA_I2C4_SDA 0x4000007f + MX8MQ_IOMUXC_I2C4_SCL_I2C4_SCL 0x40000022 + MX8MQ_IOMUXC_I2C4_SDA_I2C4_SDA 0x400000a2 >; };