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 F0577C282D6 for ; Wed, 30 Jan 2019 08:43:20 +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 BA8F821473 for ; Wed, 30 Jan 2019 08:43:20 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="S+kgd3oX" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BA8F821473 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=FRVhiQDSfXlOG7QMZGsCfPR+zARmq3N3imq4+PnGwCg=; b=S+kgd3oXCnKgxY jNp7gfsHrNGa7C9wZmNB3BeSy4eSTl4CUe7tKjt3KdxxbjF8YEkgD0m4g/u1LH0k1kZ+Q4LtacsB/ ur6Qt2lyMz5RMY3L7K6krKumSLihtwbWSiV5rF4JrBMPEEkIgC0yZ1rfM/5oaMuxVMNfvhKPeQN6E wD4UMyeYyNY5PvlTu3ku/wBK3yBt8szhd6lxLxBBWSSgI/osRVJ4LWCw63XRxGdkarrtarJs98lrY eALPGLxpwmCOyHgBdVtnLacHs4B7lQ1MPmPheQGXs41i4pQGpCxHyZU2wHWrV1Tt7hpzaPd39UMyu ro1jdO2cTntGln75Tl0g==; 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 1golSl-0002zT-IA; Wed, 30 Jan 2019 08:43:15 +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-0002Cm-LU 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 D0AF35FD23; Wed, 30 Jan 2019 16:42:17 +0800 (CST) From: Chen-Yu Tsai To: Maxime Ripard Subject: [PATCH 04/10] arm64: dts: allwinner: h5: nanopi-neo2: Add CPU regulator supply Date: Wed, 30 Jan 2019 16:41:57 +0800 Message-Id: <20190130084203.25053-5-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_004226_528963_62822D18 X-CRM114-Status: GOOD ( 10.68 ) 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 Nanopi Neo 2 uses a fixed regulator to supply the CPU cores. The feedback resistor network can be changed by toggling a GPIO line. This is effectively a GPIO controlled regulator that can change between 1.1V and 1.3V. Cc: Icenowy Zheng Signed-off-by: Chen-Yu Tsai --- This patch is based on the schematics and has not been tested on an actual board. --- .../dts/allwinner/sun50i-h5-nanopi-neo2.dts | 20 +++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5-nanopi-neo2.dts b/arch/arm64/boot/dts/allwinner/sun50i-h5-nanopi-neo2.dts index cc268a69786c..08ffdfb78137 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-h5-nanopi-neo2.dts +++ b/arch/arm64/boot/dts/allwinner/sun50i-h5-nanopi-neo2.dts @@ -99,6 +99,26 @@ gpio = <&r_pio 0 2 GPIO_ACTIVE_HIGH>; /* PL2 */ status = "okay"; }; + + reg_vdd_cpux: vdd-cpux { + compatible = "regulator-gpio"; + regulator-name = "vdd-cpux"; + regulator-type = "voltage"; + regulator-boot-on; + regulator-always-on; + regulator-min-microvolt = <1100000>; + regulator-max-microvolt = <1300000>; + regulator-ramp-delay = <50>; /* 4ms */ + enable-gpios = <&r_pio 0 8 GPIO_ACTIVE_HIGH>; /* PL8 */ + gpios = <&r_pio 0 1 GPIO_ACTIVE_HIGH>; /* PL6 */ + gpios-states = <0x1>; + states = <1100000 0x0 + 1300000 0x1>; + }; +}; + +&cpu0 { + cpu-supply = <®_vdd_cpux>; }; &ehci0 { -- 2.20.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel