Hi Sudeep,
On 4/19/2016 6:30 AM, Sudeep Holla wrote:
> +struct acpi_processor_lpi *lpi;
> +int acpi_processor_ffh_lpi_enter(struct acpi_processor_lpi *lpi, int idx)
> +{
> + int ret;
> +
> + if (!idx) {
> + cpu_do_idle();
> + return idx;
> + }
> +
> + /* TODO cpu_pm_{enter,exit} can be done in generic code ? */
> + ret = cpu_pm_enter();
Can we avoid calling cpu_pm_enter and cpu_pm_exit for retention states as it is not necessary?
May be we can check LPI architecture specific context loss flags prior to calling these.
> + if (!ret) {
> + /*
> + * Pass idle state index to cpu_suspend which in turn will
> + * call the CPU ops suspend protocol with idle index as a
> + * parameter.
> + */
> + ret = arm_cpuidle_suspend(idx);
> +
> + cpu_pm_exit();
same here
> + }
> +
> + return ret ? -1 : idx;
> +}
> +
By the way, thanks for posting these patches!
-Prashanth
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