Messages in this thread | | | Date | Thu, 11 Feb 2016 19:19:07 -0800 | From | Greg Kroah-Hartman <> | Subject | Re: [PATCH v5 RESEND 3/5] driver core: handle -EPROBE_DEFER from bus_type.match() |
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On Wed, Feb 10, 2016 at 11:47:28AM +0100, Marek Szyprowski wrote: > From: Tomeu Vizoso <tomeu.vizoso@collabora.com> > > Allow implementations of the match() callback in struct bus_type to > return errors and if it's -EPROBE_DEFER then queue the device for > deferred probing. > > This is useful to buses such as AMBA in which devices are registered > before their matching information can be retrieved from the HW > (typically because a clock driver hasn't probed yet). > > Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> > [changed if-else code structure, adjusted documentation to match the code, > extended comments] > Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> > Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> > --- > Documentation/driver-model/porting.txt | 6 ++++-- > drivers/base/dd.c | 24 ++++++++++++++++++++++-- > include/linux/device.h | 7 +++++-- > 3 files changed, 31 insertions(+), 6 deletions(-)
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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