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,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 050C5C282D5 for ; Wed, 30 Jan 2019 08:43:55 +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 C491A21873 for ; Wed, 30 Jan 2019 08:43:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="ZbvvVEgo" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C491A21873 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=juB2xe5XXWKngHPWtZ54vlohRfDAibkIOl679Grje4I=; b=ZbvvVEgoa8kSGG FcNd41eFQjKnbBGNak9SKIF54a+6HuOB1MzYcnNspA5N5Hp9TCahwmYKQyo2Im4FNkg7uSA4bA0Yl VanIaDZL/Wywlp5YqmvC7husJ/hMltrx6NxCgch8Wkr7IDJ4nsHAacTU7Q+8m4h+TXT9mFaCoIkql fap0FicUXt+9auYcI3GEjIW74WnfaHABw+MNRK2Zs1/JnQz8Tt+wbsXgIh0+CwXOYmhdBntOrNHbB OQWdlehB3w0pgH45pERqpqzE1FvN00qGwRUJ4t4a5pSquapUBj289MGA0mWqcI/qLxJk3IOelDxWE 6Ie1fLlkvcTzerWelzjw==; 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 1golTL-0003Jv-Uk; Wed, 30 Jan 2019 08:43:51 +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 1golS0-0002EA-0z for linux-arm-kernel@lists.infradead.org; Wed, 30 Jan 2019 08:42:29 +0000 Received: by wens.csie.org (Postfix, from userid 1000) id E39E45FD5D; Wed, 30 Jan 2019 16:42:17 +0800 (CST) From: Chen-Yu Tsai To: Maxime Ripard Subject: [PATCH 07/10] arm64: dts: allwinner: h5: orange-pi-pc2: Add CPU regulator supply Date: Wed, 30 Jan 2019 16:42:00 +0800 Message-Id: <20190130084203.25053-8-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_004228_274383_D36DA5EA X-CRM114-Status: GOOD ( 13.39 ) 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 OrangePi PC 2 uses a Silergy SY8106A regulator to supply the CPU cores. The fixed voltage when I2C programmed regulation is not in action is slightly higher than 1.1V. The value in the device tree description is based on calculations of the resistor values from the schematics. Cc: Andre Przywara Cc: Icenowy Zheng Cc: Emmanuel Vadot 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-orangepi-pc2.dts | 28 +++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-pc2.dts b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-pc2.dts index 3e0d5a9c096d..23cfad7c78f4 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-pc2.dts +++ b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-pc2.dts @@ -132,6 +132,10 @@ status = "okay"; }; +&cpu0 { + cpu-supply = <®_vdd_cpux>; +}; + &de { status = "okay"; }; @@ -207,6 +211,30 @@ status = "okay"; }; +&r_i2c { + status = "okay"; + + reg_vdd_cpux: regulator@65 { + compatible = "silergy,sy8106a"; + reg = <0x65>; + regulator-name = "vdd-cpux"; + silergy,fixed-microvolt = <1108474>; + /* + * The datasheet uses 1.1V as the minimum value of VDD-CPUX, + * however both the Armbian DVFS table and the official one + * have operating points with voltage under 1.1V, and both + * DVFS table are known to work properly at the lowest + * operating point. + * + * Use 1.0V as the minimum voltage instead. + */ + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1300000>; + regulator-boot-on; + regulator-always-on; + }; +}; + &spi0 { status = "okay"; -- 2.20.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel