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=-9.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,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 630D5C282D5 for ; Wed, 30 Jan 2019 08:43:08 +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 1F34B21473 for ; Wed, 30 Jan 2019 08:43:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="o0q2rNHg" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1F34B21473 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=csie.org 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=LXiErsoT8XB4yQQl1HG+VV0CjiK2gVP+3DI39AawkMw=; b=o0q2rNHgDYO6y9 Euer2IDlgK/Hy4zTkTFZ/S47Z8EN3Sn60y6jNFlUf7f80DGJuMhYVlKUDFk8IY8p5t4JHmF8RuE29 2CDM+Pj3QH5DSd2rSokrXzJU+JENcoyQ2hLsvPLe9WWei8jQQqoOQpHpPtwue+yih6zOUVvjgVBjw Sn+iiseyXenHHVUKfzVMu+WhmfM9W7+g1XIPNcY4SSiaTJHe2ixFb5jYKlw0InpAR3KNDUGQ4kmL7 8sBFAAUGrlbBKyvVJDhjIRPKT104gDOc/OdLzr6+9ucCjkqGcLOrEElZ487hU4HrSLll+7bA+cDvH 8nsUNs0gTmm5KU665HCQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1golSV-0002j0-MM; Wed, 30 Jan 2019 08:42:59 +0000 Received: from mirror2.csie.ntu.edu.tw ([140.112.30.76] helo=wens.csie.org) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1golRx-0002Cp-EW for linux-arm-kernel@lists.infradead.org; Wed, 30 Jan 2019 08:42:27 +0000 Received: by wens.csie.org (Postfix, from userid 1000) id BC1575FA83; Wed, 30 Jan 2019 16:42:17 +0800 (CST) From: Chen-Yu Tsai To: Maxime Ripard Subject: [PATCH 01/10] ARM: dts: sunxi: bananapi-m2-plus-v1.2: Fix CPU supply voltages Date: Wed, 30 Jan 2019 16:41:54 +0800 Message-Id: <20190130084203.25053-2-wens@csie.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190130084203.25053-1-wens@csie.org> References: <20190130084203.25053-1-wens@csie.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190130_004225_702025_BE7A0AC5 X-CRM114-Status: GOOD ( 10.71 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Sergey Matyukevich , Andre Przywara , Chen-Yu Tsai , linux-kernel@vger.kernel.org, Emmanuel Vadot , linux-sunxi@googlegroups.com, Jagan Teki , Hauke Mehrtens , linux-arm-kernel@lists.infradead.org, Icenowy Zheng 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 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 | 8 ++++---- 1 file changed, 4 insertions(+), 4 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 53edd1faee99..a567567763f4 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 @@ -16,13 +16,13 @@ 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 0x0 - 1300000 0x1>; + states = <1108475 0x0 + 1308475 0x1>; }; }; -- 2.20.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel