For bindings you need to cc DT list, cc'd now..

On 26 February 2015 at 18:51, Leo Yan [off-list ref] wrote:

This adds documentation for hisilicon acpu's cpufreq driver.

OPP library is used for device tree parsing to get frequency list;
Furthermore, this driver can bind all CPUs to change frequency together,
or the two clusters can trigger the frequency change independently. This
is controlled by the dtb flag "hisilicon,coupled-clusters".

Signed-off-by: Leo Yan <redacted>
---
 .../bindings/cpufreq/cpufreq-hisi-acpu.txt         | 112 +++++++++++++++++++++
 1 file changed, 112 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/cpufreq/cpufreq-hisi-acpu.txt

Bindings must be added before using them and so this patch should have been 1/2.
Apart from that, it looks like you can reuse cpufreq-dt easily without
much trouble.

+- hisilicon,coupled-clusters: Specify whether all clusters share one clock
+       source. This must be defined under node cpufreq.

+cpufreq {
+       compatible = "hisilicon,hisi-acpu-cpufreq";
+       hisilicon,coupled-clusters = <1>;
+};

Such virtual nodes aren't allowed in DT.