From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from vms173023pub.verizon.net (vms173023pub.verizon.net [206.46.173.23]) by mail.openembedded.org (Postfix) with ESMTP id BDD7C701D0 for ; Fri, 20 Jun 2014 17:13:38 +0000 (UTC) Received: from gandalf.denix.org ([unknown] [71.191.205.189]) by vms173023.mailsrvcs.net (Sun Java(tm) System Messaging Server 7u2-7.02 32bit (built Apr 16 2009)) with ESMTPA id <0N7H007Q296QVME0@vms173023.mailsrvcs.net> for openembedded-core@lists.openembedded.org; Fri, 20 Jun 2014 12:13:39 -0500 (CDT) Received: by gandalf.denix.org (Postfix, from userid 1000) id 5E3C820184; Fri, 20 Jun 2014 13:13:38 -0400 (EDT) Date: Fri, 20 Jun 2014 13:13:38 -0400 From: Denys Dmytriyenko To: openembedded-core@lists.openembedded.org Message-id: <20140620171338.GX27324@denix.org> References: <1403218403-3303-1-git-send-email-denis@denix.org> MIME-version: 1.0 In-reply-to: <1403218403-3303-1-git-send-email-denis@denix.org> User-Agent: Mutt/1.5.20 (2009-06-14) Cc: Denys Dmytriyenko Subject: Re: [PATCH 1/2] udev: update init script for conditional probing of platform bus X-BeenThere: openembedded-core@lists.openembedded.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Patches and discussions about the oe-core layer List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 20 Jun 2014 17:13:40 -0000 Content-type: text/plain; charset=us-ascii Content-disposition: inline On Thu, Jun 19, 2014 at 06:53:22PM -0400, Denys Dmytriyenko wrote: > From: Denys Dmytriyenko > > Make probing of "platform" bus conditional based on PROBE_PLATFORM_BUS > variable from /etc/default/udev-cache on subsequent boots when udev > cache is used. PROBE_PLATFORM_BUS has to be set to "yes" in order to > force probing on every boot, otherwise it uses the old default behaviour > of probing it just the first time. > > This is helpful on modern SoCs where most of the low level peripheral > drivers are registered on the platform bus and need to be probed to load > the necessary modules and enable the connected buses and subsystems. Any questions, comments? I would like to keep a dialog open on this one. Thanks. > Signed-off-by: Denys Dmytriyenko > --- > meta/recipes-core/udev/udev/init | 7 ++++++- > 1 file changed, 6 insertions(+), 1 deletion(-) > > diff --git a/meta/recipes-core/udev/udev/init b/meta/recipes-core/udev/udev/init > index 410a650..f2c84d5 100644 > --- a/meta/recipes-core/udev/udev/init > +++ b/meta/recipes-core/udev/udev/init > @@ -102,7 +102,12 @@ case "$1" in > > udevadm control --env=STARTUP=1 > if [ "$not_first_boot" != "" ];then > - udevadm trigger --action=add --subsystem-nomatch=tty --subsystem-nomatch=mem --subsystem-nomatch=vc --subsystem-nomatch=vtconsole --subsystem-nomatch=misc --subsystem-nomatch=dcon --subsystem-nomatch=pci_bus --subsystem-nomatch=graphics --subsystem-nomatch=backlight --subsystem-nomatch=video4linux --subsystem-nomatch=platform > + if [ "$PROBE_PLATFORM_BUS" != "yes" ]; then > + PLATFORM_BUS_NOMATCH="--subsystem-nomatch=platform" > + else > + PLATFORM_BUS_NOMATCH="" > + fi > + udevadm trigger --action=add --subsystem-nomatch=tty --subsystem-nomatch=mem --subsystem-nomatch=vc --subsystem-nomatch=vtconsole --subsystem-nomatch=misc --subsystem-nomatch=dcon --subsystem-nomatch=pci_bus --subsystem-nomatch=graphics --subsystem-nomatch=backlight --subsystem-nomatch=video4linux $PLATFORM_BUS_NOMATCH > (udevadm settle --timeout=3; udevadm control --env=STARTUP=)& > else > udevadm trigger --action=add > -- > 2.0.0 > > -- > _______________________________________________ > Openembedded-core mailing list > Openembedded-core@lists.openembedded.org > http://lists.openembedded.org/mailman/listinfo/openembedded-core