From patchwork Wed Jul 18 12:29:38 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Mark Brown X-Patchwork-Id: 10532387 X-Patchwork-Delegate: geert@linux-m68k.org Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 3AD306053F for ; Wed, 18 Jul 2018 12:29:53 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2E220290F5 for ; Wed, 18 Jul 2018 12:29:53 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 21FD629108; Wed, 18 Jul 2018 12:29:53 +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=-7.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI, T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 998DD290F5 for ; Wed, 18 Jul 2018 12:29:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730567AbeGRNHe (ORCPT ); Wed, 18 Jul 2018 09:07:34 -0400 Received: from heliosphere.sirena.org.uk ([172.104.155.198]:50764 "EHLO heliosphere.sirena.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727131AbeGRNHe (ORCPT ); Wed, 18 Jul 2018 09:07:34 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sirena.org.uk; s=20170815-heliosphere; h=Date:Message-Id:In-Reply-To: Subject:Cc:To:From:Sender:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:References: List-Id:List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner: List-Archive; bh=O152ACuAPDz3ZpC1NOcyvtjowS9ujN55kct1cuBuXZs=; b=SVHmtITmJBQ2 cdCcSpDY4t5SQPsJMrCB3GGs8Q3I3tncDRK5M9NNWvhmKgTm47kA92n6tEJvfQK1j4MB38feSlebH lrUh47TXyIeSM2Nh6BPmcyfcRZdUm4MVyQroseE4p8HmmrqnYzmYnLK1Dg7CQyxEHkgcsy66Il/ec TOgoc=; Received: from debutante.sirena.org.uk ([2001:470:1f1d:6b5::3] helo=debutante) by heliosphere.sirena.org.uk with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1fflaM-0003WN-HB; Wed, 18 Jul 2018 12:29:38 +0000 Received: from broonie by debutante with local (Exim 4.91) (envelope-from ) id 1fflaM-0007Sj-2K; Wed, 18 Jul 2018 13:29:38 +0100 From: Mark Brown To: Geert Uytterhoeven Cc: Pavel Machek , Mark Brown , Marek Vasut , Liam Girdwood , Mark Brown , "Rafael J . Wysocki" , Pavel Machek , Len Brown , linux-pm@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Applied "regulator: bd9571mwv: Document "backup_mode" sysfs file" to the regulator tree In-Reply-To: <20180716153052.1830-4-geert+renesas@glider.be> Message-Id: Date: Wed, 18 Jul 2018 13:29:38 +0100 Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The patch regulator: bd9571mwv: Document "backup_mode" sysfs file has been applied to the regulator tree at https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark From cf18fd01466d59263c615165341684a055206dd5 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Mon, 16 Jul 2018 17:30:52 +0200 Subject: [PATCH] regulator: bd9571mwv: Document "backup_mode" sysfs file MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Geert Uytterhoeven Acked-by: Pavel Machek Reviewed-by: Niklas Söderlund Signed-off-by: Mark Brown --- .../testing/sysfs-driver-bd9571mwv-regulator | 27 +++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-driver-bd9571mwv-regulator diff --git a/Documentation/ABI/testing/sysfs-driver-bd9571mwv-regulator b/Documentation/ABI/testing/sysfs-driver-bd9571mwv-regulator new file mode 100644 index 000000000000..4d63a7904b94 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-bd9571mwv-regulator @@ -0,0 +1,27 @@ +What: /sys/bus/i2c/devices/.../bd9571mwv-regulator.*.auto/backup_mode +Date: Jul 2018 +KernelVersion: 4.19 +Contact: Geert Uytterhoeven +Description: Read/write the current state of DDR Backup Mode, which controls + if DDR power rails will be kept powered during system suspend. + ("on"/"1" = enabled, "off"/"0" = disabled). + Two types of power switches (or control signals) can be used: + A. With a momentary power switch (or pulse signal), DDR + Backup Mode is enabled by default when available, as the + PMIC will be configured only during system suspend. + B. With a toggle power switch (or level signal), the + following steps must be followed exactly: + 1. Configure PMIC for backup mode, to change the role of + the accessory power switch from a power switch to a + wake-up switch, + 2. Switch accessory power switch off, to prepare for + system suspend, which is a manual step not controlled + by software, + 3. Suspend system, + 4. Switch accessory power switch on, to resume the + system. + DDR Backup Mode must be explicitly enabled by the user, + to invoke step 1. + See also Documentation/devicetree/bindings/mfd/bd9571mwv.txt. +Users: User space applications for embedded boards equipped with a + BD9571MWV PMIC.