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| author | Mario Limonciello <mario.limonciello@amd.com> | 2022-03-17 09:14:42 -0500 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2022-03-17 19:47:24 +0100 |
| commit | 20e1d6402a71dba7ad2b81f332a3c14c7d3b939b (patch) | |
| tree | a132f57ee85b97bff775d1e49fefe54a49418a07 /include/linux/acpi.h | |
| parent | 6060a75e77fb05c9d54ed41cccc496dd98054b57 (diff) | |
| download | linux-20e1d6402a71dba7ad2b81f332a3c14c7d3b939b.tar.bz2 | |
ACPI / x86: Add support for LPS0 callback handler
Currenty the latest thing run during a suspend to idle attempt is
the LPS0 `prepare_late` callback and the earliest thing is the
`resume_early` callback.
There is a desire for the `amd-pmc` driver to suspend later in the
suspend process (ideally the very last thing), so create a callback
that it or any other driver can hook into to do this.
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/20220317141445.6498-1-mario.limonciello@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'include/linux/acpi.h')
| -rw-r--r-- | include/linux/acpi.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 6274758648e3..47c16cdc8e0e 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -1023,7 +1023,15 @@ void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state, acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state, u32 val_a, u32 val_b); - +#ifdef CONFIG_X86 +struct acpi_s2idle_dev_ops { + struct list_head list_node; + void (*prepare)(void); + void (*restore)(void); +}; +int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg); +void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg); +#endif /* CONFIG_X86 */ #ifndef CONFIG_IA64 void arch_reserve_mem_area(acpi_physical_address addr, size_t size); #else |