| Message ID | 20231227-topic-psci_fw_sus-v1-1-6910add70bf3@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Advertise pm_resume/suspend_via_firmware with PSCI | expand |
On Wed, Dec 27, 2023 at 11:15:30PM +0100, Konrad Dybcio wrote: > Some device drivers are curious to know whether "the firmware" (which is > often assumed to be ACPI) takes care of suspending or resuming the > platform. Set the flag that reports this behavior if SYSTEM_SUSPEND is > implemented. > Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
diff --git a/drivers/firmware/psci/psci.c b/drivers/firmware/psci/psci.c index d9629ff87861..1bcb752977b1 100644 --- a/drivers/firmware/psci/psci.c +++ b/drivers/firmware/psci/psci.c @@ -505,12 +505,22 @@ static int psci_system_suspend(unsigned long unused) static int psci_system_suspend_enter(suspend_state_t state) { + pm_set_resume_via_firmware(); + return cpu_suspend(0, psci_system_suspend); } +static int psci_system_suspend_begin(suspend_state_t state) +{ + pm_set_suspend_via_firmware(); + + return 0; +} + static const struct platform_suspend_ops psci_suspend_ops = { .valid = suspend_valid_only_mem, .enter = psci_system_suspend_enter, + .begin = psci_system_suspend_begin, }; static void __init psci_init_system_reset2(void)
Some device drivers are curious to know whether "the firmware" (which is often assumed to be ACPI) takes care of suspending or resuming the platform. Set the flag that reports this behavior if SYSTEM_SUSPEND is implemented. Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org> --- drivers/firmware/psci/psci.c | 10 ++++++++++ 1 file changed, 10 insertions(+)