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=-3.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS autolearn=no 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 EE537C47404 for ; Fri, 4 Oct 2019 20:04:24 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id BF43F2133F for ; Fri, 4 Oct 2019 20:04:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="SbtnTuQL" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BF43F2133F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=sntech.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-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=bombadil.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=k09NPi5UON180pstXBxSq5YxuybsIwjc1Vp8bzZ7I+Y=; b=SbtnTuQL/Mtu3P LmgMalpTyM5jJG75z3cpZ1V7g3wT/m0wLMTGSndPSyPIUFL++Eduq9xwnI3TFGP0Ys+guBqtl3C4E i1hmLon0/CKctQMNIN5IFQlmWcbzIkCrWnWgujkUXCq3chE67+fkDB58pRNlfMQLLIDwaZi1xgxuA Akkf7H9Q6PkhG5SJQsbh4jVa8g4iwzFTeQwdISICOizpQLV7P38b8T0Vk0Ucb6irXC42lShaEtkHI g7Pl6RmywtY+PUz1FJvOoTyYM+ceOBWpKOc/pO1TnM5sM5ePzosz5W9WhrnBWVY9//G3NuOmLDGhT eDyYwXs5kjEn7DAMLoKw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.2 #3 (Red Hat Linux)) id 1iGToI-0007Hj-5Q; Fri, 04 Oct 2019 20:04:18 +0000 Received: from gloria.sntech.de ([185.11.138.130]) by bombadil.infradead.org with esmtps (Exim 4.92.2 #3 (Red Hat Linux)) id 1iGToE-0007Gh-1R; Fri, 04 Oct 2019 20:04:15 +0000 Received: from 94.112.246.102.static.b2b.upcbusiness.cz ([94.112.246.102] helo=phil.localnet) by gloria.sntech.de with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1iGToC-0006Up-Gs; Fri, 04 Oct 2019 22:04:12 +0200 From: Heiko Stuebner To: Soeren Moch Subject: Re: [PATCH 1/3] arm64: dts: rockchip: fix RockPro64 vdd-log regulator settings Date: Fri, 04 Oct 2019 22:04:11 +0200 Message-ID: <3200327.mLoWUYiBOS@phil> In-Reply-To: <20191003215036.15023-1-smoch@web.de> References: <20191003215036.15023-1-smoch@web.de> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191004_130414_229802_F9828D48 X-CRM114-Status: GOOD ( 11.28 ) 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: linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Am Donnerstag, 3. Oktober 2019, 23:50:34 CEST schrieb Soeren Moch: > The RockPro64 schematic [1] page 18 states a min voltage of 0.8V and a > max voltage of 1.4V for the VDD_LOG pwm regulator. However, there is an > additional note that the pwm parameter needs to be modified. > From the schematics a voltage range of 0.8V to 1.7V can be calculated. > Additional voltage measurements on the board show that this fix indeed > leads to the correct voltage, while without this fix the voltage was set > too high. > > [1] http://files.pine64.org/doc/rockpro64/rockpro64_v21-SCH.pdf > > Fixes: e4f3fb490967 ("arm64: dts: rockchip: add initial dts support for Rockpro64") > Signed-off-by: Soeren Moch applied as fix for 5.4 Thanks for going that extra mile with all the calculations and measurements Heiko _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel