issues calling of_platform_bus_probe() twice
grant.likely at secretlab.ca
Sun Mar 18 20:08:04 EST 2012
On Sat, 17 Mar 2012 13:35:02 +0000, Tabi Timur-B04825 <B04825 at freescale.com> wrote:
> Grant Likely wrote:
> >>> > > Are you aware of any reason that we can't call of_platform_bus_probe()
> >>> > > or multiple times. Timur's run into an issue in which all devices
> >>> > > don't get registered properly if we call of_platform_bus_probe() times
> >>> > > with different of_device_id struct's.
> >> >
> >> > Nothing comes to mind... Grant ?
> > Neither for me. Should work.
> I posted a work-around patch here:
> Without this patch, drivers cannot probe on DMA *channels*, or any other
> grandchildren of the root node.
That's because you're using it wrong. of_platform_bus_probe() creates
platform devices at the starting level and every level below it as
described by the bus ids. It is illegal to call of_platform_bus_probe()
twice at the same level in the DT.
More information about the Linuxppc-dev