On Thu, Jun 19, 2014 at 06:53:22PM -0400, Denys Dmytriyenko wrote: > From: Denys Dmytriyenko <de...@ti.com> > > 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 <de...@ti.com> > --- > 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 -- _______________________________________________ Openembedded-core mailing list Openembedded-core@lists.openembedded.org http://lists.openembedded.org/mailman/listinfo/openembedded-core
