Android-x86
Forkhardware/x86power
| Révision | 1e8ed5fe566a4af069bb118a90b20c7305d4c7f2 (tree) |
|---|---|
| l'heure | 2019-04-12 17:31:45 |
| Auteur | Valentin Manea <valentin.manea@gmai...> |
| Commiter | Chih-Wei Huang |
Allow to disable offlining of non-boot CPUs
On my Cherrytrail tablet I've been trying to achieve the S0Ix deep sleep
states. After a bit of twiddling I found out that I can achieve the deep
sleep states but I need to disable the power off of the secondary cores
otherwise the resume from sleep causes the device to crash.
The patch uses a property to determine whether to power off the non-boot
CPUs on sleeping.
| @@ -74,7 +74,9 @@ static void power_set_interactive(struct power_module *module UNUSED, int on) | ||
| 74 | 74 | } |
| 75 | 75 | } |
| 76 | 76 | |
| 77 | - set_nonboot_cpu_state(on ? CPU_ONLINE : CPU_OFFLINE); | |
| 77 | + if (property_get_bool("power.nonboot-cpu-off", 1)) { | |
| 78 | + set_nonboot_cpu_state(on ? CPU_ONLINE : CPU_OFFLINE); | |
| 79 | + } | |
| 78 | 80 | } |
| 79 | 81 | |
| 80 | 82 | static void power_hint(struct power_module *module UNUSED, power_hint_t hint, void *data UNUSED) |
power.c