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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by aws-us-west-2-korg-lkml-1.web.codeaurora.org (Postfix) with ESMTP id 4FC6EC433EF for ; Thu, 14 Jun 2018 19:44:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0A88C208C3 for ; Thu, 14 Jun 2018 19:44:45 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0A88C208C3 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-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755359AbeFNTom (ORCPT ); Thu, 14 Jun 2018 15:44:42 -0400 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:41939 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754749AbeFNTok (ORCPT ); Thu, 14 Jun 2018 15:44:40 -0400 Received: by atrey.karlin.mff.cuni.cz (Postfix, from userid 512) id 495FF803D6; Thu, 14 Jun 2018 21:44:39 +0200 (CEST) Date: Thu, 14 Jun 2018 21:44:38 +0200 From: Pavel Machek To: "H. Nikolaus Schaller" Cc: Johan Hovold , afd@ti.com, Rob Herring , Mark Rutland , =?iso-8859-1?Q?Beno=EEt?= Cousson , Tony Lindgren , Russell King , Arnd Bergmann , Greg Kroah-Hartman , Kevin Hilman , Andreas =?iso-8859-1?Q?F=E4rber?= , Thierry Reding , Jonathan Cameron , Noralf =?iso-8859-1?Q?Tr=F8nnes?= , David Lechner , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, letux-kernel@openphoenux.org, kernel@pyra-handheld.com, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH v7 3/6] DTS: gta04: add uart2 child node for w2sg0004 GPS receiver Message-ID: <20180614194428.GA17808@amd> References: <9ebb28aed589aca8e9b5bc5c910f1d2f0d62669d.1525340143.git.hns@goldelico.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="vGgW1X5XWziG23Ko" Content-Disposition: inline In-Reply-To: <9ebb28aed589aca8e9b5bc5c910f1d2f0d62669d.1525340143.git.hns@goldelico.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --vGgW1X5XWziG23Ko Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu 2018-05-03 11:35:48, H. Nikolaus Schaller wrote: > GTA04 has a W2SG0004 module connected to UART2 of the OMAP3 > processor. A GPIO can pulse the on/off toggle switch. >=20 > Note that there is no WAKEUP output from the W2SG0004, > hence we can't use the generic SirfStar binding. >=20 > The VSIM regulator is used to power on/off the LNA of an > external active GPS antenna so that a driver can turn the > LNA off if GPS is not needed to save battery energy. This reads as if you did low->high->low to turn GPS on, then low->high->low to turn GPS off again. Is that correct? --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --vGgW1X5XWziG23Ko Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAlsixaYACgkQMOfwapXb+vIR+QCdEaJCgNlT/StRfo2wpu6IL5DZ f5oAnRk0pf0CnytX6uUjiTwnFyuk9B9F =NzCb -----END PGP SIGNATURE----- --vGgW1X5XWziG23Ko-- From mboxrd@z Thu Jan 1 00:00:00 1970 From: pavel@ucw.cz (Pavel Machek) Date: Thu, 14 Jun 2018 21:44:38 +0200 Subject: [PATCH v7 3/6] DTS: gta04: add uart2 child node for w2sg0004 GPS receiver In-Reply-To: <9ebb28aed589aca8e9b5bc5c910f1d2f0d62669d.1525340143.git.hns@goldelico.com> References: <9ebb28aed589aca8e9b5bc5c910f1d2f0d62669d.1525340143.git.hns@goldelico.com> Message-ID: <20180614194428.GA17808@amd> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thu 2018-05-03 11:35:48, H. Nikolaus Schaller wrote: > GTA04 has a W2SG0004 module connected to UART2 of the OMAP3 > processor. A GPIO can pulse the on/off toggle switch. > > Note that there is no WAKEUP output from the W2SG0004, > hence we can't use the generic SirfStar binding. > > The VSIM regulator is used to power on/off the LNA of an > external active GPS antenna so that a driver can turn the > LNA off if GPS is not needed to save battery energy. This reads as if you did low->high->low to turn GPS on, then low->high->low to turn GPS off again. Is that correct? -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 181 bytes Desc: Digital signature URL: