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=-9.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 9E32EC43381 for ; Thu, 14 Mar 2019 20:02:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 67D812082F for ; Thu, 14 Mar 2019 20:02:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1552593747; bh=7tt2/3oDr9PR31PjO6DJoxlxKevzO2z1r2YDNhvhx6Y=; h=From:To:Subject:Date:List-ID:From; b=nyY3xi+uuXmjK/3+3lskEm1sSu3hx9cSs/ixbqbHyT7RnnPy8IRvA71L6TMgSTCCw luNF9rnsVVXPKuvx/CI+fmOz8U+kH6vqNOIFGca2IDSQQhYR2iaubSSheERgBZIvTL /cP/IsH1lIfA1ge7EeZD9NsxMrD67qSlFW4j1LCY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727479AbfCNUCZ (ORCPT ); Thu, 14 Mar 2019 16:02:25 -0400 Received: from mail.kernel.org ([198.145.29.99]:45632 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726444AbfCNUCZ (ORCPT ); Thu, 14 Mar 2019 16:02:25 -0400 Received: from localhost.localdomain (unknown [194.230.155.153]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 333292082F; Thu, 14 Mar 2019 20:02:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1552593744; bh=7tt2/3oDr9PR31PjO6DJoxlxKevzO2z1r2YDNhvhx6Y=; h=From:To:Subject:Date:From; b=gXYKRK7D7AyVg4tgohi7NEoVeBIIGYq59ItlV+dIbGLurKMADoYwEie2dzSnRKAhx 7VUYUJGjyMEospvvDg1oJ1bwZIV4TZUxrQHAFDJblz22gTISnXYkoMURgJa/K0gMHo aciyQstj2HtIJUVvcNS5oyEMW31n1uDip5Y+Secw= From: Krzysztof Kozlowski To: Kukjin Kim , Krzysztof Kozlowski , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] ARM: dts: exynos: Always enable necessary APIO_1V8 and ABB_1V8 regulators on Arndale Octa Date: Thu, 14 Mar 2019 21:02:17 +0100 Message-Id: <20190314200217.6002-1-krzk@kernel.org> X-Mailer: git-send-email 2.17.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The PVDD_APIO_1V8 (LDO2) and PVDD_ABB_1V8 (LDO8) regulators were turned off by Linux kernel as unused. However they supply critical parts of SoC so they should be always on: 1. PVDD_APIO_1V8 supplies SYS pins (gpx[0-3], PSHOLD), HDMI level shift, RTC, VDD1_12 (DRAM internal 1.8 V logic), pull-up for PMIC interrupt lines, TTL/UARTR level shift, reset pins and SW-TACT1 button. It also supplies unused blocks like VDDQ_SRAM (for SROM controller) and VDDQ_GPIO (gpm7, gpy7). The LDO2 cannot be turned off (S2MPS11 keeps it on anyway) so marking it "always-on" only reflects its real status. 2. PVDD_ABB_1V8 supplies Adaptive Body Bias Generator for ARM cores, memory and Mali (G3D). Signed-off-by: Krzysztof Kozlowski --- arch/arm/boot/dts/exynos5420-arndale-octa.dts | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/boot/dts/exynos5420-arndale-octa.dts b/arch/arm/boot/dts/exynos5420-arndale-octa.dts index 3447160e1fbf..a0e27e1c0feb 100644 --- a/arch/arm/boot/dts/exynos5420-arndale-octa.dts +++ b/arch/arm/boot/dts/exynos5420-arndale-octa.dts @@ -107,6 +107,7 @@ regulator-name = "PVDD_APIO_1V8"; regulator-min-microvolt = <1800000>; regulator-max-microvolt = <1800000>; + regulator-always-on; }; ldo3_reg: LDO3 { @@ -145,6 +146,7 @@ regulator-name = "PVDD_ABB_1V8"; regulator-min-microvolt = <1800000>; regulator-max-microvolt = <1800000>; + regulator-always-on; }; ldo9_reg: LDO9 { -- 2.17.1