Re: [RFC 3/8] cpufreq: imx6q: Set max suspend_freq to avoid changes during suspend
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: 2017-03-23 04:34:42
Also in:
linux-arm-kernel, linux-pm, lkml
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: 2017-03-23 04:34:42
Also in:
linux-arm-kernel, linux-pm, lkml
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 <redacted> --- drivers/cpufreq/imx6q-cpufreq.c | 2 ++ 1 file changed, 2 insertions(+)
Acked-by: Viresh Kumar <viresh.kumar@linaro.org> -- viresh