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=-8.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,MAILING_LIST_MULTI,SIGNED_OFF_BY,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 6E21DC4363A for ; Fri, 30 Oct 2020 10:36:25 +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 CEE4020704 for ; Fri, 30 Oct 2020 10:36:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="2JBxsjG5"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="2FxmcBZe" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CEE4020704 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=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject: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=28BMhwe0+wP+Cx4MDCrdOo43wu6QzL7T3HGVYGYsMhM=; b=2JBxsjG5VoZZ5ei7ooTtH9K6N Bmy45YyUZAqbTXDKvVgJ4vyrid5Rh5p55tZx6LDnI2sxKh4f21yM/46IEHJb7LZCALNJmYPvfaDGP ujEuyFpIfMnZKb+FfTmEFKxyQhrs8j0FaJ4IOWS9ZesAZcPchd3BKpuC7C4zmdvT95qNCCPfkZA/m NPyjtIJMouXJIoivy0ZfsfciARFk52XNSjSwkATceZLWdHOf6WLdIzjI2Q/KxJARFm3zl83ZjX2H3 iu4PPpHw8HGvcuYF3glUGp1r8j5Resny6htTRPaWj/dUxXI2TAFMS/FPCQt9/Jm0mBuIuzu6B3OWM gYlAEELbg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kYRkM-00005j-Th; Fri, 30 Oct 2020 10:35:02 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kYRkI-0008Vw-I4 for linux-arm-kernel@lists.infradead.org; Fri, 30 Oct 2020 10:34:59 +0000 Received: from dragon (80.251.214.228.16clouds.com [80.251.214.228]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id E554C20704; Fri, 30 Oct 2020 10:34:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604054097; bh=dH/Euy84o8UAK6ZWf2evrfdJN2070vU7e+DONC1HjU0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=2FxmcBZeAumkCwIR+WD1V3Ity4QOnJ+X8IY0pyUPDJGqIa9e5VMRud/7w2mS5F4br puB16ElAhqhzV24NCk32SoQshv/jPGqdpIe+pUVhLnHTNYh2Bgv0Xfie/RNRjGbD4r Z+ymhqPKKslf/J8O5ratBR+SHombmiqmWQzNNN5w= Date: Fri, 30 Oct 2020 18:34:49 +0800 From: Shawn Guo To: Anson Huang Subject: Re: [PATCH V2 1/3] arm64: dts: imx8mm: Correct WDOG_B pin configuration Message-ID: <20201030103449.GR28755@dragon> References: <1602506642-5262-1-git-send-email-Anson.Huang@nxp.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1602506642-5262-1-git-send-email-Anson.Huang@nxp.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-20201030_063458_688611_1FCCB81D X-CRM114-Status: GOOD ( 14.07 ) 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: daniel.baluta@nxp.com, peter.chen@nxp.com, abel.vesa@nxp.com, devicetree@vger.kernel.org, festevam@gmail.com, s.hauer@pengutronix.de, linux-kernel@vger.kernel.org, krzk@kernel.org, robh+dt@kernel.org, linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de, l.stach@pengutronix.de, Linux-imx@nxp.com, yibin.gong@nxp.com, aford173@gmail.com, shengjiu.wang@nxp.com, alifer.wsdm@gmail.com, jun.li@nxp.com 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 Mon, Oct 12, 2020 at 08:44:00PM +0800, Anson Huang wrote: > Different revision of i.MX8MM EVK boards may have different external > pull up registor design, some are enabled while some are NOT, to make > sure the WDOG_B pin works properly, better to enable internal pull up > resistor. Since enabling internal pull up resistor is NOT harmful and > having benefit of flexibility on different board design, just enable > it for all i.MX8MM boards; And schmitt input is NOT necessary for this > WDOG_B output pin, so remove it; Open drain outputs provide more > flexibility to a designer as they can be pulled-up to any voltage found > in the system, so enable it as well. > > Signed-off-by: Anson Huang Applied all, thanks. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel