On 03/12/2015 05:23 PM, Eric Anholt wrote: ... > The power-domain rework ended up not working out -- it needs the > power-domain part of device/base to support throwing -EPROBE_DEFER > if the driver hasn't probed yet, That makese sense. > unless we're willing to just bake in the power domain driver in > static init ordering. Indeed, that's quite unlikely to be acceptable. > Device base maintainers weren't excited about my patch for > -EPROBE_DEFER, because then a new DT would mean we start failing to > probe the USB driver in an older kernel, which whould be a > regression in the case that the user had U-Boot setting up USB for > them. The main ABI issue is that old DTs should work with new kernels. The other way around is nice, but certainly not as strict a requirement. I don't think that should block a change. Do you have a link to the thread; I don't think I noticed it. -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html