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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,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 E7CCAC43381 for ; Fri, 8 Jan 2021 12:58:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8E040239D1 for ; Fri, 8 Jan 2021 12:58:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727067AbhAHM57 (ORCPT ); Fri, 8 Jan 2021 07:57:59 -0500 Received: from honk.sigxcpu.org ([24.134.29.49]:44940 "EHLO honk.sigxcpu.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725965AbhAHM56 (ORCPT ); Fri, 8 Jan 2021 07:57:58 -0500 Received: from localhost (localhost [127.0.0.1]) by honk.sigxcpu.org (Postfix) with ESMTP id 22441FB02; Fri, 8 Jan 2021 13:57:15 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at honk.sigxcpu.org Received: from honk.sigxcpu.org ([127.0.0.1]) by localhost (honk.sigxcpu.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Ad-lw2qiTfel; Fri, 8 Jan 2021 13:57:11 +0100 (CET) Received: by bogon.sigxcpu.org (Postfix, from userid 1000) id B15D740887; Fri, 8 Jan 2021 13:57:10 +0100 (CET) From: =?UTF-8?q?Guido=20G=C3=BCnther?= To: Rob Herring , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , Catalin Marinas , Will Deacon , Martin Kepplinger , Angus Ainslie , Krzysztof Kozlowski , Bjorn Andersson , Li Yang , Geert Uytterhoeven , Vinod Koul , Anson Huang , Michael Walle , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, phone-devel@vger.kernel.org Subject: [PATCH v3 2/4] arm64: dts: imx8mq-librem5-devkit: Tweak pmic regulators Date: Fri, 8 Jan 2021 13:57:08 +0100 Message-Id: X-Mailer: git-send-email 2.29.2 In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org BUCK3 needs a regulator-enable-ramp-delay since otherwise the board freezes on etnaviv probe. With this pgc_gpu suspends and resumes as expected. This must have been always broken since gpcv2 support was enabled. We also enable all the regulators needed for Deep Sleep Mode (DSM) as always-on: - VDD_SOC supplied by BUCK1 - VDDA_1P8 supplied by BUCK7 - VDDA_0P9 supplied by LDO4 - VDDA_DRAM supplied by LDO3 - NVCC_DRAM supplied by BUCK8 - VDD_DRAM supplied by BUCK5 Finally LDO5 and LDO6 provide VDD_PHY_1V8 and VDD_PHY_0V9 used by the SOCs MIPI, HDMI and USB IP cores. While we would in theory be able to turn these off (and I've tested that or LDO6 and mipi with USB disabled) it is of little practical use atm since USB doesn't runtime suspend so let's revisit this at a later point. Signed-off-by: Guido Günther Reviewed-by: Krzysztof Kozlowski --- .../boot/dts/freescale/imx8mq-librem5-devkit.dts | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts index af139b283daf..f35d6897fbf7 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts +++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts @@ -298,6 +298,7 @@ buck1_reg: BUCK1 { regulator-min-microvolt = <700000>; regulator-max-microvolt = <1300000>; regulator-boot-on; + regulator-always-on; regulator-ramp-delay = <1250>; rohm,dvs-run-voltage = <900000>; rohm,dvs-idle-voltage = <850000>; @@ -319,6 +320,7 @@ buck3_reg: BUCK3 { regulator-min-microvolt = <700000>; regulator-max-microvolt = <1300000>; regulator-boot-on; + regulator-enable-ramp-delay = <200>; rohm,dvs-run-voltage = <900000>; }; @@ -334,6 +336,7 @@ buck5_reg: BUCK5 { regulator-min-microvolt = <700000>; regulator-max-microvolt = <1350000>; regulator-boot-on; + regulator-always-on; }; buck6_reg: BUCK6 { @@ -341,6 +344,7 @@ buck6_reg: BUCK6 { regulator-min-microvolt = <3000000>; regulator-max-microvolt = <3300000>; regulator-boot-on; + regulator-always-on; }; buck7_reg: BUCK7 { @@ -348,6 +352,7 @@ buck7_reg: BUCK7 { regulator-min-microvolt = <1605000>; regulator-max-microvolt = <1995000>; regulator-boot-on; + regulator-always-on; }; buck8_reg: BUCK8 { @@ -355,6 +360,7 @@ buck8_reg: BUCK8 { regulator-min-microvolt = <800000>; regulator-max-microvolt = <1400000>; regulator-boot-on; + regulator-always-on; }; ldo1_reg: LDO1 { @@ -380,6 +386,7 @@ ldo3_reg: LDO3 { regulator-min-microvolt = <1800000>; regulator-max-microvolt = <3300000>; regulator-boot-on; + regulator-always-on; }; ldo4_reg: LDO4 { @@ -387,12 +394,14 @@ ldo4_reg: LDO4 { regulator-min-microvolt = <900000>; regulator-max-microvolt = <1800000>; regulator-boot-on; + regulator-always-on; }; ldo5_reg: LDO5 { regulator-name = "ldo5"; regulator-min-microvolt = <1800000>; regulator-max-microvolt = <3300000>; + regulator-always-on; }; ldo6_reg: LDO6 { @@ -400,6 +409,7 @@ ldo6_reg: LDO6 { regulator-min-microvolt = <900000>; regulator-max-microvolt = <1800000>; regulator-boot-on; + regulator-always-on; }; ldo7_reg: LDO7 { @@ -407,6 +417,7 @@ ldo7_reg: LDO7 { regulator-min-microvolt = <1800000>; regulator-max-microvolt = <3300000>; regulator-boot-on; + regulator-always-on; }; }; }; -- 2.29.2