/** * psp_send_platform_access_msg() - Send a message to control platform features * * This function is intended to be used by drivers outside of ccp to communicate * with the platform. * * 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_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: error will be stored in result argument
*/ int psp_ring_platform_doorbell(int msg, u32 *result);
/** * 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 * if platform features has initialized. * * Returns: * 0 platform features is ready * -%ENODEV platform features is not ready or present
*/ int psp_check_platform_access_status(void);
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