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=-13.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 2D648C433E6 for ; Fri, 17 Jul 2020 16:02:57 +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 F05F5204EA for ; Fri, 17 Jul 2020 16:02:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="O0Q35XYG"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="yY+WDOnJ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F05F5204EA 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: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=k0Fcv+IorY3gKpAzSxJ/Ff4vscxt5Ynu1eYNmWKdzA0=; b=O0Q35XYGCW5vhwWWgclg/PAVc 0Pw2o3KroBQmhLjjQUO0y85fGLqqxm31GP9Hlk5PjeVCUhzDk7OzW1/d90OYe0SFLeW3a1qCucolA Tln58c64rHuXc9JqImGQSm8bnexGvBdloQFOIdN1VbY8Pj/kNyNuHd3/gqM7PadLYVG7DU7xUGMTv LRJLGlovDwuv4ljj2eYCBOTtRyVlo0rfyItcoUGtSXo7+TTRW9xrMNAJQ+yQFK/bT3GWPIlMskMX2 CJKe9VffZoBecMbQqMEqUAQ50vZU/PWRLliJrfSZqFScUKYYVVWlfPXb08MLa++q3rpCOXavJ+ZHq 4a45jugKw==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jwSnX-0006Ap-Sc; Fri, 17 Jul 2020 16:01:19 +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 1jwSnD-00061i-Kq for linux-arm-kernel@lists.infradead.org; Fri, 17 Jul 2020 16:01:02 +0000 Received: from wens.tw (mirror2.csie.ntu.edu.tw [140.112.194.72]) (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 2D068206BE; Fri, 17 Jul 2020 16:00:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1595001658; bh=2ZbkrZccM4GRyeKL6L2cvwgpAuoXXOK43VqdE71mHdI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=yY+WDOnJn57BkxkmLI/zXIHgVNyIueEkL1qmzCzjz6EXM9kj/vLVBnOmeI9+WhhwC 2AQAJOOnqG+Twne9wJOK4duq90eNzhI9yFHicouK22DDAXAD0fgu+hWAIRMGunipXw ZQg+t/RfgdUGD5TVuS3hYRC/RMtr9nryBUSbknjg= Received: by wens.tw (Postfix, from userid 1000) id 29FD45FD44; Sat, 18 Jul 2020 00:00:55 +0800 (CST) From: Chen-Yu Tsai To: Maxime Ripard Subject: [PATCH v2 3/8] ARM: dts: sunxi: bananapi-m2-plus-v1.2: Fix CPU supply voltages Date: Sat, 18 Jul 2020 00:00:48 +0800 Message-Id: <20200717160053.31191-4-wens@kernel.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200717160053.31191-1-wens@kernel.org> References: <20200717160053.31191-1-wens@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200717_120059_895140_0EE64E70 X-CRM114-Status: GOOD ( 10.85 ) 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, Chen-Yu Tsai , Rob Herring , 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+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Chen-Yu Tsai The Bananapi M2+ uses a GPIO line to change the effective resistance of the CPU supply regulator's feedback resistor network. The voltages described in the device tree were given directly by the vendor. This turns out to be slightly off compared to the real values. The updated voltages are based on calculations of the feedback resistor network, and verified down to three decimal places with a multi-meter. Fixes: 6eeb4180d4b9 ("ARM: dts: sunxi: h3-h5: Add Bananapi M2+ v1.2 device trees") Signed-off-by: Chen-Yu Tsai --- arch/arm/boot/dts/sunxi-bananapi-m2-plus-v1.2.dtsi | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm/boot/dts/sunxi-bananapi-m2-plus-v1.2.dtsi b/arch/arm/boot/dts/sunxi-bananapi-m2-plus-v1.2.dtsi index a628b5ee72b6..235994a4a2eb 100644 --- a/arch/arm/boot/dts/sunxi-bananapi-m2-plus-v1.2.dtsi +++ b/arch/arm/boot/dts/sunxi-bananapi-m2-plus-v1.2.dtsi @@ -16,12 +16,12 @@ reg_vdd_cpux: vdd-cpux { regulator-type = "voltage"; regulator-boot-on; regulator-always-on; - regulator-min-microvolt = <1100000>; - regulator-max-microvolt = <1300000>; + regulator-min-microvolt = <1108475>; + regulator-max-microvolt = <1308475>; regulator-ramp-delay = <50>; /* 4ms */ gpios = <&r_pio 0 1 GPIO_ACTIVE_HIGH>; /* PL1 */ gpios-states = <0x1>; - states = <1100000 0>, <1300000 1>; + states = <1108475 0>, <1308475 1>; }; }; -- 2.27.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel