On 08/07/2014 05:01 PM, Tuomas Tynkkynen wrote:

Some mach-specific drivers that don't require their own node in the device tree
(for example drivers/soc/*, cpufreq, cpuidle etc.) want to match on the device
tree root compatible property instead. Instead of open-coding (and forgetting
to call of_node_put on the root node) everywhere, add a helper to the OF core.

Tuomas, I assume there will be a new version of this series to address 
the review comments? For now, I'm not intending on applying this.