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[76.210.143.223]) by smtp.gmail.com with ESMTPSA id g22sm758662pfj.29.2021.12.02.13.42.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 02 Dec 2021 13:42:09 -0800 (PST) Date: Thu, 02 Dec 2021 13:42:09 -0800 (PST) X-Google-Original-Date: Thu, 02 Dec 2021 13:41:58 PST (-0800) Subject: Re: [PATCH v3 5/6] riscv: dts: sifive unmatched: Fix regulator for board rev3 In-Reply-To: <537742e7af4a21baf79429469ba7c30947ddca7a.1637362542.git.plr.vincent@gmail.com> CC: robh+dt@kernel.org, Paul Walmsley , aou@eecs.berkeley.edu, krzysztof.kozlowski@canonical.com, qiuwenbo@kylinos.com.cn, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, david.abdurachmanov@sifive.com From: Palmer Dabbelt To: plr.vincent@gmail.com Message-ID: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 19 Nov 2021 14:55:41 PST (-0800), plr.vincent@gmail.com wrote: > The existing values are rejected by the da9063 regulator driver, as they > are unachievable with the declared chip setup (non-merged vcore and bmem > are unable to provide the declared curent). > > Fix voltages to match rev3 schematics, which also matches their boot-up There's a few references to rev 3 here. I'm not sure if that means we should have multiple device trees -- this one seems pretty benign, but some of the regulator stuff worries me there, where anything rev 3 specific might not be safe on other revisions. Did any previous revisions make it out of the lab? > configuration within the chip's available precision. > Declare bcore1/bcore2 and bmem/bio as merged. > Set ldo09 and ldo10 as always-on as their consumers are not declared but > exist. > Drop ldo current limits as there is no current limit feature for these > regulators in the DA9063. Fixes warnings like: > DA9063_LDO3: Operation of current configuration missing > > Signed-off-by: Vincent Pelletier > > --- > Changes since v2: > - Fix end-of-commit-message separator so change lists do not end up in them. > Changes since v1: > - Remove trailing "." on subject line. > --- > .../boot/dts/sifive/hifive-unmatched-a00.dts | 84 ++++++------------- > 1 file changed, 24 insertions(+), 60 deletions(-) > > diff --git a/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts b/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts > index 6e7775fdae32..1abad0eec02e 100644 > --- a/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts > +++ b/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts > @@ -93,47 +93,31 @@ wdt { > }; > > regulators { > - vdd_bcore1: bcore1 { > - regulator-min-microvolt = <900000>; > - regulator-max-microvolt = <900000>; > - regulator-min-microamp = <5000000>; > - regulator-max-microamp = <5000000>; > - regulator-always-on; > - }; > - > - vdd_bcore2: bcore2 { > - regulator-min-microvolt = <900000>; > - regulator-max-microvolt = <900000>; > - regulator-min-microamp = <5000000>; > - regulator-max-microamp = <5000000>; > + vdd_bcore: bcores-merged { > + regulator-min-microvolt = <1050000>; > + regulator-max-microvolt = <1050000>; > + regulator-min-microamp = <4800000>; > + regulator-max-microamp = <4800000>; > regulator-always-on; > }; > > vdd_bpro: bpro { > regulator-min-microvolt = <1800000>; > regulator-max-microvolt = <1800000>; > - regulator-min-microamp = <2500000>; > - regulator-max-microamp = <2500000>; > + regulator-min-microamp = <2400000>; > + regulator-max-microamp = <2400000>; > regulator-always-on; > }; > > vdd_bperi: bperi { > - regulator-min-microvolt = <1050000>; > - regulator-max-microvolt = <1050000>; > + regulator-min-microvolt = <1060000>; > + regulator-max-microvolt = <1060000>; > regulator-min-microamp = <1500000>; > regulator-max-microamp = <1500000>; > regulator-always-on; > }; > > - vdd_bmem: bmem { > - regulator-min-microvolt = <1200000>; > - regulator-max-microvolt = <1200000>; > - regulator-min-microamp = <3000000>; > - regulator-max-microamp = <3000000>; > - regulator-always-on; > - }; > - > - vdd_bio: bio { > + vdd_bmem_bio: bmem-bio-merged { > regulator-min-microvolt = <1200000>; > regulator-max-microvolt = <1200000>; > regulator-min-microamp = <3000000>; > @@ -144,86 +128,66 @@ vdd_bio: bio { > vdd_ldo1: ldo1 { > regulator-min-microvolt = <1800000>; > regulator-max-microvolt = <1800000>; > - regulator-min-microamp = <100000>; > - regulator-max-microamp = <100000>; > regulator-always-on; > }; > > vdd_ldo2: ldo2 { > regulator-min-microvolt = <1800000>; > regulator-max-microvolt = <1800000>; > - regulator-min-microamp = <200000>; > - regulator-max-microamp = <200000>; > regulator-always-on; > }; > > vdd_ldo3: ldo3 { > - regulator-min-microvolt = <1800000>; > - regulator-max-microvolt = <1800000>; > - regulator-min-microamp = <200000>; > - regulator-max-microamp = <200000>; > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > regulator-always-on; > }; > > vdd_ldo4: ldo4 { > - regulator-min-microvolt = <1800000>; > - regulator-max-microvolt = <1800000>; > - regulator-min-microamp = <200000>; > - regulator-max-microamp = <200000>; > + regulator-min-microvolt = <2500000>; > + regulator-max-microvolt = <2500000>; > regulator-always-on; > }; > > vdd_ldo5: ldo5 { > - regulator-min-microvolt = <1800000>; > - regulator-max-microvolt = <1800000>; > - regulator-min-microamp = <100000>; > - regulator-max-microamp = <100000>; > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > regulator-always-on; > }; > > vdd_ldo6: ldo6 { > - regulator-min-microvolt = <3300000>; > - regulator-max-microvolt = <3300000>; > - regulator-min-microamp = <200000>; > - regulator-max-microamp = <200000>; > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <1800000>; > regulator-always-on; > }; > > vdd_ldo7: ldo7 { > - regulator-min-microvolt = <1800000>; > - regulator-max-microvolt = <1800000>; > - regulator-min-microamp = <200000>; > - regulator-max-microamp = <200000>; > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > regulator-always-on; > }; > > vdd_ldo8: ldo8 { > - regulator-min-microvolt = <1800000>; > - regulator-max-microvolt = <1800000>; > - regulator-min-microamp = <200000>; > - regulator-max-microamp = <200000>; > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > regulator-always-on; > }; > > vdd_ld09: ldo9 { > regulator-min-microvolt = <1050000>; > regulator-max-microvolt = <1050000>; > - regulator-min-microamp = <200000>; > - regulator-max-microamp = <200000>; > + regulator-always-on; > }; > > vdd_ldo10: ldo10 { > regulator-min-microvolt = <1000000>; > regulator-max-microvolt = <1000000>; > - regulator-min-microamp = <300000>; > - regulator-max-microamp = <300000>; > + regulator-always-on; > }; > > vdd_ldo11: ldo11 { > regulator-min-microvolt = <2500000>; > regulator-max-microvolt = <2500000>; > - regulator-min-microamp = <300000>; > - regulator-max-microamp = <300000>; > regulator-always-on; > }; > }; 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 D79C5C433F5 for ; Thu, 2 Dec 2021 21:42:24 +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-Transfer-Encoding:Content-Type:MIME-Version:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id:Message-ID:To:From:CC: In-Reply-To:Subject:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:References: List-Owner; bh=F6Y9YJU2NueT5h1018V2DAe6Rzd3xJybys0UT5vMYok=; b=zT/6ZoDoj0SijA xKwAf9JmoEV+qP/StfnZe8tIgQmRNlpKrAFrkeDRGMkjnyFpoDDz7caoNDkflaF2pKKXXP3NmxyN8 ARuwv80haysB45w3oYLrq12cv8h7MVqKH5ArTiR6OuSJKhmzm8js8f1s/3J1Ybglfl+RdEGlV6aMo dvuPhuy7L7WJo+MFcS82jaOVW2ysBbOctCRMuS1cs7eDH2MeknLqwgtcpOuLu3TMDlnS4DZyvx7zS LLlmlvWHt7eod/HHBBtBySPn6SgKgASgobBV1Bh7U6Kd4o1T+NNfH3w/9koeb4fx/tOyl0fCCogqs qF2UNBnsufSbkrxx2uYA==; 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[76.210.143.223]) by smtp.gmail.com with ESMTPSA id g22sm758662pfj.29.2021.12.02.13.42.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 02 Dec 2021 13:42:09 -0800 (PST) Date: Thu, 02 Dec 2021 13:42:09 -0800 (PST) X-Google-Original-Date: Thu, 02 Dec 2021 13:41:58 PST (-0800) Subject: Re: [PATCH v3 5/6] riscv: dts: sifive unmatched: Fix regulator for board rev3 In-Reply-To: <537742e7af4a21baf79429469ba7c30947ddca7a.1637362542.git.plr.vincent@gmail.com> CC: robh+dt@kernel.org, Paul Walmsley , aou@eecs.berkeley.edu, krzysztof.kozlowski@canonical.com, qiuwenbo@kylinos.com.cn, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, david.abdurachmanov@sifive.com From: Palmer Dabbelt To: plr.vincent@gmail.com Message-ID: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211202_134212_031089_62744130 X-CRM114-Status: GOOD ( 19.20 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On Fri, 19 Nov 2021 14:55:41 PST (-0800), plr.vincent@gmail.com wrote: > The existing values are rejected by the da9063 regulator driver, as they > are unachievable with the declared chip setup (non-merged vcore and bmem > are unable to provide the declared curent). > > Fix voltages to match rev3 schematics, which also matches their boot-up There's a few references to rev 3 here. I'm not sure if that means we should have multiple device trees -- this one seems pretty benign, but some of the regulator stuff worries me there, where anything rev 3 specific might not be safe on other revisions. Did any previous revisions make it out of the lab? > configuration within the chip's available precision. > Declare bcore1/bcore2 and bmem/bio as merged. > Set ldo09 and ldo10 as always-on as their consumers are not declared but > exist. > Drop ldo current limits as there is no current limit feature for these > regulators in the DA9063. Fixes warnings like: > DA9063_LDO3: Operation of current configuration missing > > Signed-off-by: Vincent Pelletier > > --- > Changes since v2: > - Fix end-of-commit-message separator so change lists do not end up in them. > Changes since v1: > - Remove trailing "." on subject line. > --- > .../boot/dts/sifive/hifive-unmatched-a00.dts | 84 ++++++------------- > 1 file changed, 24 insertions(+), 60 deletions(-) > > diff --git a/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts b/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts > index 6e7775fdae32..1abad0eec02e 100644 > --- a/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts > +++ b/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts > @@ -93,47 +93,31 @@ wdt { > }; > > regulators { > - vdd_bcore1: bcore1 { > - regulator-min-microvolt = <900000>; > - regulator-max-microvolt = <900000>; > - regulator-min-microamp = <5000000>; > - regulator-max-microamp = <5000000>; > - regulator-always-on; > - }; > - > - vdd_bcore2: bcore2 { > - regulator-min-microvolt = <900000>; > - regulator-max-microvolt = <900000>; > - regulator-min-microamp = <5000000>; > - regulator-max-microamp = <5000000>; > + vdd_bcore: bcores-merged { > + regulator-min-microvolt = <1050000>; > + regulator-max-microvolt = <1050000>; > + regulator-min-microamp = <4800000>; > + regulator-max-microamp = <4800000>; > regulator-always-on; > }; > > vdd_bpro: bpro { > regulator-min-microvolt = <1800000>; > regulator-max-microvolt = <1800000>; > - regulator-min-microamp = <2500000>; > - regulator-max-microamp = <2500000>; > + regulator-min-microamp = <2400000>; > + regulator-max-microamp = <2400000>; > regulator-always-on; > }; > > vdd_bperi: bperi { > - regulator-min-microvolt = <1050000>; > - regulator-max-microvolt = <1050000>; > + regulator-min-microvolt = <1060000>; > + regulator-max-microvolt = <1060000>; > regulator-min-microamp = <1500000>; > regulator-max-microamp = <1500000>; > regulator-always-on; > }; > > - vdd_bmem: bmem { > - regulator-min-microvolt = <1200000>; > - regulator-max-microvolt = <1200000>; > - regulator-min-microamp = <3000000>; > - regulator-max-microamp = <3000000>; > - regulator-always-on; > - }; > - > - vdd_bio: bio { > + vdd_bmem_bio: bmem-bio-merged { > regulator-min-microvolt = <1200000>; > regulator-max-microvolt = <1200000>; > regulator-min-microamp = <3000000>; > @@ -144,86 +128,66 @@ vdd_bio: bio { > vdd_ldo1: ldo1 { > regulator-min-microvolt = <1800000>; > regulator-max-microvolt = <1800000>; > - regulator-min-microamp = <100000>; > - regulator-max-microamp = <100000>; > regulator-always-on; > }; > > vdd_ldo2: ldo2 { > regulator-min-microvolt = <1800000>; > regulator-max-microvolt = <1800000>; > - regulator-min-microamp = <200000>; > - regulator-max-microamp = <200000>; > regulator-always-on; > }; > > vdd_ldo3: ldo3 { > - regulator-min-microvolt = <1800000>; > - regulator-max-microvolt = <1800000>; > - regulator-min-microamp = <200000>; > - regulator-max-microamp = <200000>; > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > regulator-always-on; > }; > > vdd_ldo4: ldo4 { > - regulator-min-microvolt = <1800000>; > - regulator-max-microvolt = <1800000>; > - regulator-min-microamp = <200000>; > - regulator-max-microamp = <200000>; > + regulator-min-microvolt = <2500000>; > + regulator-max-microvolt = <2500000>; > regulator-always-on; > }; > > vdd_ldo5: ldo5 { > - regulator-min-microvolt = <1800000>; > - regulator-max-microvolt = <1800000>; > - regulator-min-microamp = <100000>; > - regulator-max-microamp = <100000>; > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > regulator-always-on; > }; > > vdd_ldo6: ldo6 { > - regulator-min-microvolt = <3300000>; > - regulator-max-microvolt = <3300000>; > - regulator-min-microamp = <200000>; > - regulator-max-microamp = <200000>; > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <1800000>; > regulator-always-on; > }; > > vdd_ldo7: ldo7 { > - regulator-min-microvolt = <1800000>; > - regulator-max-microvolt = <1800000>; > - regulator-min-microamp = <200000>; > - regulator-max-microamp = <200000>; > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > regulator-always-on; > }; > > vdd_ldo8: ldo8 { > - regulator-min-microvolt = <1800000>; > - regulator-max-microvolt = <1800000>; > - regulator-min-microamp = <200000>; > - regulator-max-microamp = <200000>; > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > regulator-always-on; > }; > > vdd_ld09: ldo9 { > regulator-min-microvolt = <1050000>; > regulator-max-microvolt = <1050000>; > - regulator-min-microamp = <200000>; > - regulator-max-microamp = <200000>; > + regulator-always-on; > }; > > vdd_ldo10: ldo10 { > regulator-min-microvolt = <1000000>; > regulator-max-microvolt = <1000000>; > - regulator-min-microamp = <300000>; > - regulator-max-microamp = <300000>; > + regulator-always-on; > }; > > vdd_ldo11: ldo11 { > regulator-min-microvolt = <2500000>; > regulator-max-microvolt = <2500000>; > - regulator-min-microamp = <300000>; > - regulator-max-microamp = <300000>; > regulator-always-on; > }; > }; _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv