From mboxrd@z Thu Jan 1 00:00:00 1970 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=-10.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 99CC9C433E0 for ; Mon, 8 Mar 2021 01:32:50 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (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 32A3965146 for ; Mon, 8 Mar 2021 01:32:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 32A3965146 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org 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=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=hs3umQ9P6nJAOyyFYOZ8u6cF+QR/ZCl0jW2QyuP8rrg=; b=mzyN94PFmYdJsLzNlUpaMzzZ1 FzZAtzD6SM1QuG+/J3LN3gUHlF0jp7Bpw+Svjw3Q8J10vK4BTXYvlKQq3NDr8C5rEsj58Fq4VM5Rr PcYwjb6pbndaje4NEiFVg462bbSCr5sNUEoENqPNlvjFAVLTgDaZKiXXYolIN+LG4BYDTTf4qUnce nllwrrqlPEIkJRXTL7MIbG0vz+/R0m6juHumJS1xvPv2O0+dckQkxrzqm4lfpW7YO25gSuARbmI1W VuS/wzVK54/bo8a46t186lHBBgaJWBAQWhFTy26TlemgRgbBFa9CM7fP8KGbH9BIBeI2V7rwpdevb PuyvBsHbw==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lJ4jZ-00ELVJ-VT; Mon, 08 Mar 2021 01:30:58 +0000 Received: from mail.kernel.org ([198.145.29.99]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lJ4jF-00ELMa-TU for linux-arm-kernel@lists.infradead.org; Mon, 08 Mar 2021 01:30:52 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id A652965142; Mon, 8 Mar 2021 01:30:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1615167036; bh=kEfU/3VkTkKBq1rMsZZhlHiDpEv+Qcgk2HYB8ZbRqYQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=ZRO9ip7dOYDmDmyUMXNfY5Yc+sIKWbu7lBWoKjX+d5UlWEgNE90vGiPpcc3JH+3ri OJRBDSHPHJn5FyPp+t1/LDidwZ3YyNj053DsFPmSTU+FNbwMtl66uaV0rrRHsc854G zG0HnwzLb/I91lG1nculemSbb22OItfc0pkO4whwpK4VsR6I0yo/ga/LvLKghNH/G6 HgNHyHa+qYHWWcrk2wTDs5f3cd2zoPEHePWnUmygrTyTHs8xqx8WAsagTbYiErx3KU AZ6LwflrA+VsrWNdKL06SEj6zEnyUY5F1AXMYbHdd9vK+/OLaccR16f6k6Z0570LwL cx5iO+7si+dFg== Date: Mon, 8 Mar 2021 09:30:30 +0800 From: Shawn Guo To: Philippe Schenker Cc: devicetree@vger.kernel.org, Fabio Estevam , NXP Linux Team , Pengutronix Kernel Team , Rob Herring , Sascha Hauer , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] ARM: dts: colibri-imx6ull: Change drive strength for usdhc2 Message-ID: <20210308013009.GT543@dragon> References: <20210304093139.471554-1-philippe.schenker@toradex.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210304093139.471554-1-philippe.schenker@toradex.com> User-Agent: Mutt/1.9.4 (2018-02-28) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210308_013050_090786_92ABF283 X-CRM114-Status: GOOD ( 10.12 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, Mar 04, 2021 at 10:31:39AM +0100, Philippe Schenker wrote: > The current setting reflects about 86 Ohms of source-impedance > on the SDIO signals where the WiFi board is hooked up. PCB traces are > routed with 50 Ohms impedance and there are no serial resistors on > those traces. > > This commit changes the source-impedance to 52 Ohms to better match our > hardware design. > > The impedances given in this commit message refer to 3.3V operation. > > Signed-off-by: Philippe Schenker Applied, thanks. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel