Hi Mark On Tue, Apr 29, 2014 at 11:37:58AM -0700, Mark Brown wrote: > On Mon, Apr 28, 2014 at 10:22:54AM -0700, Maxime Ripard wrote: > > > spidev device registration has always been a controversial subject > > since the move to DT. > > Why can we not handle this by using sysfs to bind spidev to the > device? I just tried it, and apparently, you can't really use this, since spi devices are created from the device tree (or ACPI) whenever the master registers. As such, you still need a DT node for every spidev device you might want to use. It doesn't really work either for a device that would be bound to a driver, that you unbind, and then try to bind to spidev instead. It looks like the device is released whenever you unbind it, so you can't really use it afterwards. Maxime -- Maxime Ripard, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com
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