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=-13.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 8EC62C433DF for ; Sat, 8 Aug 2020 23:44:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5A3C52053B for ; Sat, 8 Aug 2020 23:44:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1596930264; bh=r9cARwlmRmQB2cn/JMr7t+CaD0wcuI04mAkfiugb6E4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=mauCkn9VPr29c87W+Qyla6QiScmriyPOppWn8Yaq5W2p5+5Q7bQxHASTuOWQ138JS RbQtFq/N+MAtz52R1LyGc6TXMIvYyTUUjTJF3B6hbLn9p43Vzlw48/mKoYcKNHiBfx qyEVzq4kv5QuI1JWQLmym05D4HvNhrM/5Fmf/24o= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727982AbgHHXoW (ORCPT ); Sat, 8 Aug 2020 19:44:22 -0400 Received: from mail.kernel.org ([198.145.29.99]:54080 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728486AbgHHXjX (ORCPT ); Sat, 8 Aug 2020 19:39:23 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id BD9342073E; Sat, 8 Aug 2020 23:39:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1596929962; bh=r9cARwlmRmQB2cn/JMr7t+CaD0wcuI04mAkfiugb6E4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=VrvGBGRJDU5q6G4ZKA2eKaYIqs1Oe515RKwTNbfaiyn+ApfM1xfXi886J2mYVoveI xFLJsNBIx1nO+WsseUSVwDk9egM3BIipZjswXFa/WG4zm0ZmxypGdiFSbw0+Pqm85F TzmWTQPiY/Ea+teZQ5E0x2eZ0EjCTNDG7EDOfNTE= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Chen-Yu Tsai , Maxime Ripard , Sasha Levin , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH AUTOSEL 5.4 25/40] ARM: dts: sunxi: bananapi-m2-plus-v1.2: Fix CPU supply voltages Date: Sat, 8 Aug 2020 19:38:29 -0400 Message-Id: <20200808233844.3618823-25-sashal@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200808233844.3618823-1-sashal@kernel.org> References: <20200808233844.3618823-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Chen-Yu Tsai [ Upstream commit e4dae01bf08b754de79072441c357737220b873f ] 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 Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20200717160053.31191-4-wens@kernel.org Signed-off-by: Sasha Levin --- 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 a628b5ee72b65..235994a4a2ebb 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>; }; }; -- 2.25.1