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=-2.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no 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 3505CC4CECE for ; Sun, 13 Oct 2019 15:08:36 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 093A2206A3 for ; Sun, 13 Oct 2019 15:08:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="LSW7MWm/" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 093A2206A3 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ucw.cz Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender:Content-Type:Cc: List-Subscribe:List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: In-Reply-To:MIME-Version:References:Message-ID:Subject:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=d7ZOn/dAf73tPg98buNruudAvs4vrDabn7ykG73V04g=; b=LSW7MWm/iy/V8NQCkRQ9e8tIB +pQJIbfGiPBD6bXIPe0f3ceqYRdo1GEVBRUHXJlYm7AvICoPkiuZMCCAOXxIeirePvhWZ5SjFSz4w CKoO7gKgI3C8CeTk/wEzCjO7vOxYckDSDRHhFZ/fqJmXJMNtXBw+oCesIquJZKL8GKHDIaVnrT3FN Z6O28HzeWcA04hnD04ESUE8Pj2+je7VX9noLANtp+ld+/rBmOy7oAD518aQwfpJQxGMhkeKgVrbh3 ROqPXhM/N2guHnACL5iC3yFSvPTxz+7azQaL0T3Wr7UhXzbTXSnfJwHcESUULYz4jXjroE4OPIICl rK8BaGf8Q==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iJfTz-0004Jr-AH; Sun, 13 Oct 2019 15:08:31 +0000 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iJfTo-0004Ac-MR for linux-arm-kernel@lists.infradead.org; Sun, 13 Oct 2019 15:08:22 +0000 Received: by atrey.karlin.mff.cuni.cz (Postfix, from userid 512) id D044680238; Sun, 13 Oct 2019 17:08:03 +0200 (CEST) Date: Sun, 13 Oct 2019 17:08:15 +0200 From: Pavel Machek To: Tony Lindgren Subject: Re: [PATCH 8/8] ARM: OMAP2+: Initialize voltage controller for omap4 Message-ID: <20191013150815.GF13278@amd> References: <20191010001224.41826-1-tony@atomide.com> <20191010001224.41826-9-tony@atomide.com> MIME-Version: 1.0 In-Reply-To: <20191010001224.41826-9-tony@atomide.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191013_080820_974440_B607E0F1 X-CRM114-Status: GOOD ( 11.95 ) 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: , Cc: Merlijn Wajer , linux-omap@vger.kernel.org, Sebastian Reichel , linux-arm-kernel@lists.infradead.org Content-Type: multipart/mixed; boundary="===============2479985975132430250==" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org --===============2479985975132430250== Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="TeJTyD9hb8KJN2Jy" Content-Disposition: inline --TeJTyD9hb8KJN2Jy Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed 2019-10-09 17:12:24, Tony Lindgren wrote: > We're missing initializing the PRM_VOLTCTRL register for voltage > controller. Let's add omap4_vc_init_pmic_signaling() similar to what we > have for omap3 and enable voltage control for retention. >=20 > This brings down droid4 power consumption with mainline kernel to somewhe= re > between 40 and 50mW from about 70 to 80 mW for the whole device when runn= ing > idle with LCD and backlight off, WLAN connected, and USB and modem modules > unloaded. >=20 > Mostly just rmmod of omap2430, ohci-platform and phy-mapphone-mdm6600 are > needed to idle USB and shut down the modem. And after that measuring idle > power consumption can be done with reading sysfs entry every ten seconds = for > /sys/class/power_supply/battery/power_avg. Then rmmod of phy-cpcap-usb wi= ll > save few more mW, but will disable the debug UART. >=20 > Note that sometimes CM_L4PER_UART1_CLKCTRL at 0x4a009540 does not idle > properly after unloading of phy-mapphone-mdm6600. Acked-by: Pavel Machek Pavel --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --TeJTyD9hb8KJN2Jy Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAl2jPd8ACgkQMOfwapXb+vKc6QCfTInHiCOojLoYl+MSblD5nQ+O DR4AoKLHNZ8Zwjp6K/Te03yOdXiHsdQx =5UcY -----END PGP SIGNATURE----- --TeJTyD9hb8KJN2Jy-- --===============2479985975132430250== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel --===============2479985975132430250==--