The work used to allow the capcitors to ramp is not performance sensitive
so let  the scheduler run it wherever is most efficient rather than in a
per CPU workqueue by using the system power efficient workqueue.
Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
        if (codec->dapm.suspend_bias_level == SND_SOC_BIAS_ON) {
                wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
                codec->dapm.bias_level = SND_SOC_BIAS_ON;
-               schedule_delayed_work(&codec->dapm.delayed_work,
-                       msecs_to_jiffies(caps_charge));
+               queue_delayed_work(system_power_efficient_wq,
+                                  &codec->dapm.delayed_work,
+                                  msecs_to_jiffies(caps_charge));
        }
 
        return 0;