From patchwork Fri Jun 21 15:58:43 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krzysztof Kozlowski X-Patchwork-Id: 11010353 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 321C7112C for ; Fri, 21 Jun 2019 15:59:24 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1AE5B2896D for ; Fri, 21 Jun 2019 15:59:24 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0F03B28AE3; Fri, 21 Jun 2019 15:59:24 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 9259628A70 for ; Fri, 21 Jun 2019 15:59:23 +0000 (UTC) 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:MIME-Version:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Cc:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=CGjQdpCAjrpUWyr1pdeLE1uM7a2asF9w5/IBr0ocvZE=; b=b+yykuKLopy74Z iddfaausa15UuJ5f5uN6mTiZorGJjgnJpd1OI0kTuX/Pea9XAgqbhzPu7oUzmpw7dlyeek596nrl5 BJ4Rumq1IOd8hGXR33/kgxfM4GlUlNJuleM5hDZUQkE0pjRinHy6bkMfm4tUaPZPjyBwm2lbznVO9 XHjsPyq31yxqQxhZjGxHFPFlyM90gLg9MdKS50emF1kg6tguSUiawLRvBxzzoqYuJbWFKrwDe+GGI aMRJC9BnH7/oR3mf4K5tumLGn110J3AYgJCn/w8MMGax7gQ4wXBMaOJNt3MssmNQVHxdB+rvzTKr4 wLn7EoRbh/MTPUb8VUYQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1heLwZ-00066j-T3; Fri, 21 Jun 2019 15:59:15 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1heLwI-0005t9-H8 for linux-arm-kernel@lists.infradead.org; Fri, 21 Jun 2019 15:59:00 +0000 Received: from localhost.localdomain (unknown [194.230.155.186]) (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 5308821530; Fri, 21 Jun 2019 15:58:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1561132738; bh=LrMmbFUNhbcgdUmpHgJVmzOPNpufte8XRveYDsh3I48=; h=From:To:Subject:Date:In-Reply-To:References:From; b=171YLbmdcQQXB2+6BfLx/bV95awcO65JBsWUJfkCg3rT/b3LWc5miSb5IElimE695 vH6uchSq5iycLp3u034XRF3zupsNXy4wuFyy4tSWcNuOnKTvRxEsABocFS/bad62zj niZboHvZVt/eCy2lSL4nGArv/J6dpnjlKgCXa8jw= From: Krzysztof Kozlowski To: Kukjin Kim , Krzysztof Kozlowski , Anand Moon , Marek Szyprowski , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 2/4] ARM: dts: exynos: Add regulator suspend configuration to Arndale Octa board Date: Fri, 21 Jun 2019 17:58:43 +0200 Message-Id: <20190621155845.7079-2-krzk@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190621155845.7079-1-krzk@kernel.org> References: <20190621155845.7079-1-krzk@kernel.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190621_085858_597742_2F423F60 X-CRM114-Status: GOOD ( 13.73 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Add the PMIC regulator suspend configuration to Arndale Octa board to reduce power usage during suspend and keep necessary regulators on. The configuration is based on vendor (Insignal) reference kernel and the board datasheet. Comparing to vendor kernel, additionally turn off in suspend all regulators controlled by external pin (LDO3, LDO7, LDO18 and buck10). This is purely for hardware description because board does not support Suspend to RAM and the S2MPS11 driver does not support "regulator-on-in-suspend" property. Signed-off-by: Krzysztof Kozlowski --- Changes since v1: 1. Turn off LDO3, LDO7, LDO18 and buck10. Add comment about LDO3 and buck10. --- arch/arm/boot/dts/exynos5420-arndale-octa.dts | 80 +++++++++++++++++++ 1 file changed, 80 insertions(+) diff --git a/arch/arm/boot/dts/exynos5420-arndale-octa.dts b/arch/arm/boot/dts/exynos5420-arndale-octa.dts index dc9162a17475..3126a6c3f842 100644 --- a/arch/arm/boot/dts/exynos5420-arndale-octa.dts +++ b/arch/arm/boot/dts/exynos5420-arndale-octa.dts @@ -386,6 +386,10 @@ * (Linaro for Arndale Octa, v2012.07). */ regulator-always-on; + + regulator-state-mem { + regulator-off-in-suspend; + }; }; ldo4_reg: LDO4 { @@ -411,6 +415,10 @@ regulator-name = "PVDD_ANAIP_1V8"; regulator-min-microvolt = <1800000>; regulator-max-microvolt = <1800000>; + + regulator-state-mem { + regulator-off-in-suspend; + }; }; ldo8_reg: LDO8 { @@ -451,6 +459,10 @@ regulator-name = "PVDD_APIO_MMCOFF_2V8"; regulator-min-microvolt = <1800000>; regulator-max-microvolt = <2800000>; + + regulator-state-mem { + regulator-off-in-suspend; + }; }; ldo14_reg: LDO14 { @@ -464,12 +476,20 @@ regulator-name = "PVDD_PERI_2V8"; regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; + + regulator-state-mem { + regulator-on-in-suspend; + }; }; ldo16_reg: LDO16 { regulator-name = "PVDD_PERI_3V3"; regulator-min-microvolt = <2200000>; regulator-max-microvolt = <2200000>; + + regulator-state-mem { + regulator-on-in-suspend; + }; }; ldo17_reg: LDO17 { @@ -483,12 +503,28 @@ regulator-name = "PVDD_EMMC_1V8"; regulator-min-microvolt = <1800000>; regulator-max-microvolt = <1800000>; + /* + * Must stay in "off" mode during shutdown for + * proper eMMC reset. The "off" mode is in + * fact controlled by LDO18EN. The eMMC does + * not have reset pin connected so the reset + * will be triggered by falling edge of + * LDO18EN. + */ + + regulator-state-mem { + regulator-off-in-suspend; + }; }; ldo19_reg: LDO19 { regulator-name = "PVDD_TFLASH_2V8"; regulator-min-microvolt = <2800000>; regulator-max-microvolt = <2800000>; + + regulator-state-mem { + regulator-off-in-suspend; + }; }; ldo20_reg: LDO20 { @@ -515,12 +551,20 @@ regulator-min-microvolt = <800000>; regulator-max-microvolt = <1100000>; regulator-always-on; + + regulator-state-mem { + regulator-on-in-suspend; + }; }; ldo24_reg: LDO24 { regulator-name = "PVDD_CAM1_AVDD_2V8"; regulator-min-microvolt = <2800000>; regulator-max-microvolt = <2800000>; + + regulator-state-mem { + regulator-on-in-suspend; + }; }; ldo25_reg: LDO25 { @@ -540,6 +584,10 @@ regulator-name = "PVDD_G3DS_1V0"; regulator-min-microvolt = <800000>; regulator-max-microvolt = <1100000>; + + regulator-state-mem { + regulator-on-in-suspend; + }; }; ldo28_reg: LDO28 { @@ -617,6 +665,10 @@ regulator-min-microvolt = <800000>; regulator-max-microvolt = <1300000>; regulator-always-on; + + regulator-state-mem { + regulator-off-in-suspend; + }; }; buck2_reg: BUCK2 { @@ -624,6 +676,10 @@ regulator-min-microvolt = <800000>; regulator-max-microvolt = <1500000>; regulator-always-on; + + regulator-state-mem { + regulator-off-in-suspend; + }; }; buck3_reg: BUCK3 { @@ -631,12 +687,20 @@ regulator-min-microvolt = <800000>; regulator-max-microvolt = <1400000>; regulator-always-on; + + regulator-state-mem { + regulator-off-in-suspend; + }; }; buck4_reg: BUCK4 { regulator-name = "PVDD_G3D_1V0"; regulator-min-microvolt = <800000>; regulator-max-microvolt = <1400000>; + + regulator-state-mem { + regulator-off-in-suspend; + }; }; buck5_reg: BUCK5 { @@ -651,6 +715,10 @@ regulator-min-microvolt = <800000>; regulator-max-microvolt = <1500000>; regulator-always-on; + + regulator-state-mem { + regulator-off-in-suspend; + }; }; buck7_reg: BUCK7 { @@ -678,6 +746,18 @@ regulator-name = "PVDD_EMMCF_2V8"; regulator-min-microvolt = <2800000>; regulator-max-microvolt = <2800000>; + /* + * Must stay in "off" mode during shutdown for + * proper eMMC reset. The "off" mode is in + * fact controlled by BUCK10EN. The eMMC does + * not have reset pin connected so the reset + * will be triggered by falling edge of + * BUCK10EN. + */ + + regulator-state-mem { + regulator-off-in-suspend; + }; }; }; };