diff options
Diffstat (limited to 'include/linux/psp-platform-access.h')
| -rw-r--r-- | include/linux/psp-platform-access.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/psp-platform-access.h b/include/linux/psp-platform-access.h index 977df5cfd494..89df4549fada 100644 --- a/include/linux/psp-platform-access.h +++ b/include/linux/psp-platform-access.h @@ -35,6 +35,21 @@ struct psp_request { int psp_send_platform_access_msg(enum psp_platform_access_msg, struct psp_request *req); /** + * psp_ring_platform_doorbell() - Ring platform doorbell + * + * This function is intended to be used by drivers outside of ccp to ring the + * platform doorbell with a message. + * + * Returns: + * 0: success + * -%EBUSY: mailbox in recovery or in use + * -%ENODEV: driver not bound with PSP device + * -%ETIMEDOUT: request timed out + * -%EIO: unknown error (see kernel log) + */ +int psp_ring_platform_doorbell(int msg); + +/** * psp_check_platform_access_status() - Checks whether platform features is ready * * This function is intended to be used by drivers outside of ccp to determine |