[RFC 3/8] cpufreq: imx6q: Set max suspend_freq to avoid changes during suspend

Leonard Crestez leonard.crestez at nxp.com
Tue Mar 28 13:03:51 PDT 2017


On Thu, 2017-03-23 at 10:04 +0530, Viresh Kumar wrote:
> On 22-03-17, 18:53, Leonard Crestez wrote:
> > If the cpufreq driver tries to modify voltage/freq during suspend/resume
> > it might need to control an external PMIC via I2C or SPI but those
> > devices might be already suspended.
> > 
> > To avoid this scenario we just increase cpufreq to highest setpoint
> > before suspend. This issue can easily be triggered by ldo-bypass but in
> > theory any regulator set_voltage call can end up having to modify
> > external supply voltages.
> > 
> > Signed-off-by: Leonard Crestez <leonard.crestez at nxp.com>
> > ---
> >  drivers/cpufreq/imx6q-cpufreq.c | 2 ++
> >  1 file changed, 2 insertions(+)
> 
> Acked-by: Viresh Kumar <viresh.kumar at linaro.org>

The first couple of patches are obvious fixes despite being marked as
RFC. It would be great if you could apply them to your tree separately
from the rest of the series but I'm not sure what the process is here.



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