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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 4FA53C433EF for ; Mon, 13 Jun 2022 07:43:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:From:References:CC:To:Subject: MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=UJ5Tx/zl994X3OwATmbyctUluyhe3l/mMUm3YiDI/aw=; b=khAlxghXn9go4h FFGDiMmjPp82f34QHJKcX4UZeJvDKg49VXcL0Aqtep2b2D3HkII/zywQ6HGagnoPUrvrlw8HKrKLY XGgro8rK2jPwRyC+OHDa7DZqMyY2v+6fWRLz2UmPe2jR9TOhzfGfCGlQeXud1aM/g8A73N3gx3/k3 CdEWXxCior/4nn84fE2rAAm3GUD3aUHm0YouRNHTwB3dPgJV5s8dOq/fNlkePxZ+66hBdP4yE8lty wMc0O2xbt2bGFUwxeAv/zWS1XTOV3W2cuiuCSFoWcvXwE6RkPxefeeR0rYTfU63ZrZayNXQp/2lVi O9gAlL0rmMRxPIYNvj5g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1o0eiq-0020CA-Gm; Mon, 13 Jun 2022 07:42:52 +0000 Received: from mx07-00178001.pphosted.com ([185.132.182.106]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1o0eim-0020AG-Lw for linux-arm-kernel@lists.infradead.org; Mon, 13 Jun 2022 07:42:50 +0000 Received: from pps.filterd (m0288072.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 25D6RheL002746; Mon, 13 Jun 2022 09:42:43 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h=message-id : date : mime-version : subject : to : cc : references : from : in-reply-to : content-type : content-transfer-encoding; s=selector1; bh=7TbDr/UnlhPbLUjuZmXOO5o+yC3PIK6UnxSEib9OL4k=; b=mPUvV0QMMhUWOE+Ae68feKtYU4NifBaO3Cva1iYFJQgpbJIDfWdyB9VJ9EXw6HQDW+7D a2sT2JRWE5oHMhKQvAYgBBhiRwuuHRFpKFFSH3q9EXPBKFDlMva868fnSIJ+3PXGOPfP mjHiLTkxFdyvaYLxftH8lmJHQ/zwJSLGGc7QYzigFvl0JouXUysNMSCHCrHUhbv5/HPF 0zGgAfLXsho3esFg93NtoP8L4b9U2Tl1mhWLKJQgpLtRl7I1ipF1QdtQV4wwG/spRbii 9U5dfcF0C1yHH1f0o9pMMfhYtf5u2DpGQKXbbdlChK8fUO1wejP7v6BGXEON8DnAIEmn iw== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com (PPS) with ESMTPS id 3gmgfma9ga-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 13 Jun 2022 09:42:43 +0200 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 4885210002A; Mon, 13 Jun 2022 09:42:42 +0200 (CEST) Received: from Webmail-eu.st.com (shfdag1node1.st.com [10.75.129.69]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 30E92211F07; Mon, 13 Jun 2022 09:42:42 +0200 (CEST) Received: from [10.201.21.93] (10.75.127.119) by SHFDAG1NODE1.st.com (10.75.129.69) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.1.2308.20; Mon, 13 Jun 2022 09:42:41 +0200 Message-ID: <0a86b3bc-7a7a-a66f-0d9f-85035aaff032@foss.st.com> Date: Mon, 13 Jun 2022 09:42:41 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.8.1 Subject: Re: [PATCH] ARM: dts: stm32: Move DHCOR BUCK3 VDD 2V9 adjustment to 1V8 DTSI Content-Language: en-US To: Marek Vasut , CC: References: <20220504124945.77331-1-marex@denx.de> From: Alexandre TORGUE In-Reply-To: <20220504124945.77331-1-marex@denx.de> X-Originating-IP: [10.75.127.119] X-ClientProxiedBy: GPXDAG2NODE5.st.com (10.75.127.69) To SHFDAG1NODE1.st.com (10.75.129.69) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.874,Hydra:6.0.517,FMLib:17.11.64.514 definitions=2022-06-13_02,2022-06-09_02,2022-02-23_01 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220613_004249_063993_5BD4EF65 X-CRM114-Status: GOOD ( 19.25 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Marek On 5/4/22 14:49, Marek Vasut wrote: > The Buck3 on DHCOR is used to supply IO voltage. It can output either 3V3 > in the default DHCOR configuration, or 2V9 in case of AV96 DHCOR variant > which has extra Empirion DCDC converter in front of the 1V8 IO supply, or > outright 1V8 in case of 1V8 IO DHCOR without the Empirion DCDC converter. > > The 2V9 mode in case of AV96 DHCOR variant is used to reduce unnecessarily > high input voltage to the Empirion DCDC converter, so move it into matching > DTSI to stop confusing users. > > Signed-off-by: Marek Vasut > Cc: Alexandre Torgue > Cc: linux-stm32@st-md-mailman.stormreply.com > To: linux-arm-kernel@lists.infradead.org > --- > arch/arm/boot/dts/stm32mp15xx-dhcor-io1v8.dtsi | 5 +++++ > arch/arm/boot/dts/stm32mp15xx-dhcor-som.dtsi | 4 ++-- > 2 files changed, 7 insertions(+), 2 deletions(-) > > diff --git a/arch/arm/boot/dts/stm32mp15xx-dhcor-io1v8.dtsi b/arch/arm/boot/dts/stm32mp15xx-dhcor-io1v8.dtsi > index 75172314d7afd..9937b28548c23 100644 > --- a/arch/arm/boot/dts/stm32mp15xx-dhcor-io1v8.dtsi > +++ b/arch/arm/boot/dts/stm32mp15xx-dhcor-io1v8.dtsi > @@ -18,6 +18,11 @@ vdd_io: regulator-buck-io { > }; > }; > > +&vdd { > + regulator-min-microvolt = <2900000>; > + regulator-max-microvolt = <2900000>; > +}; > + > &pwr_regulators { > vdd-supply = <&vdd_io>; > }; > diff --git a/arch/arm/boot/dts/stm32mp15xx-dhcor-som.dtsi b/arch/arm/boot/dts/stm32mp15xx-dhcor-som.dtsi > index 6336c3ca0f0e2..134a798ad3f23 100644 > --- a/arch/arm/boot/dts/stm32mp15xx-dhcor-som.dtsi > +++ b/arch/arm/boot/dts/stm32mp15xx-dhcor-som.dtsi > @@ -119,8 +119,8 @@ vdd_ddr: buck2 { > > vdd: buck3 { > regulator-name = "vdd"; > - regulator-min-microvolt = <2900000>; > - regulator-max-microvolt = <2900000>; > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > regulator-always-on; > regulator-initial-mode = <0>; > regulator-over-current-protection; Applied on stm32-next. Thanks. Alex _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel