Add do_kernel_power_off() helper that will remove open-coded pm_power_off invocations from the architecture code. This is the first step on the way to remove the global pm_power_off variable, which will allow us to implement consistent power-off chaining support.
Unified · Split
| @@ -63,6 +63,8 @@ extern void machine_shutdown(void); · 62 unmodified lines | ||
| 63 | 63 | struct pt_regs; |
| 64 | 64 | extern void machine_crash_shutdown(struct pt_regs *); |
| 65 | 65 | |
| 66 | +void do_kernel_power_off(void); | |
| 67 | + | |
| 66 | 68 | /* |
| 67 | 69 | * sys-off handler API. |
| 68 | 70 | */ |
| @@ -504,6 +504,19 @@ static void do_kernel_power_off_prepare(void) · 503 unmodified lines | ||
| 504 | 504 | blocking_notifier_call_chain(&power_off_prep_handler_list, 0, NULL); |
| 505 | 505 | } |
| 506 | 506 | |
| 507 | +/** | |
| 508 | + * do_kernel_power_off - Execute kernel power-off handler call chain | |
| 509 | + * | |
| 510 | + * Expected to be called as last step of the power-off sequence. | |
| 511 | + * | |
| 512 | + * Powers off the system immediately if a power-off handler function has | |
| 513 | + * been registered. Otherwise does nothing. | |
| 514 | + */ | |
| 515 | +void do_kernel_power_off(void) | |
| 516 | +{ | |
| 517 | + atomic_notifier_call_chain(&power_off_handler_list, 0, NULL); | |
| 518 | +} | |
| 519 | + | |
| 507 | 520 | /** |
| 508 | 521 | * kernel_power_off - power_off the system |
| 509 | 522 | * |