Changes

Please note that <u>OPP can be changed only using the '''<code>userspace''' </code> governor</u>. If governors like ondemand is used, OPP change happens automatically based on the system load. Please also note that the imx6q-cpufreq driver (http://lxr.free-electrons.com/source/drivers/cpufreq/imx6q-cpufreq.c?v=3.10) works on a per-SOC policy (and not on a per-core one), so the cpufreq governor changes the clock speed for all the ARM cores simultaneously. To change the governor (<code>userspace</code> in the example):<pre class="board-terminal">echo userspace > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor</pre>