From d5141f37c42e0b833863f157ac4cee203b2ba3d2 Mon Sep 17 00:00:00 2001 From: Cristian Marussi Date: Fri, 27 Mar 2020 14:34:28 +0000 Subject: firmware: arm_scmi: Add notifications support in transport layer Add common transport-layer methods to: - fetch a notification instead of a response - clear a pending notification Add also all the needed support in mailbox/shmem transports. Link: https://lore.kernel.org/r/20200327143438.5382-4-cristian.marussi@arm.com Reviewed-by: Jonathan Cameron Reviewed-by: Viresh Kumar Signed-off-by: Cristian Marussi Signed-off-by: Sudeep Holla --- drivers/firmware/arm_scmi/common.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers/firmware/arm_scmi/common.h') diff --git a/drivers/firmware/arm_scmi/common.h b/drivers/firmware/arm_scmi/common.h index 34bfadca14cc..07eb33c1576b 100644 --- a/drivers/firmware/arm_scmi/common.h +++ b/drivers/firmware/arm_scmi/common.h @@ -178,6 +178,8 @@ struct scmi_chan_info { * @send_message: Callback to send a message * @mark_txdone: Callback to mark tx as done * @fetch_response: Callback to fetch response + * @fetch_notification: Callback to fetch notification + * @clear_notification: Callback to clear a pending notification * @poll_done: Callback to poll transfer status */ struct scmi_transport_ops { @@ -190,6 +192,9 @@ struct scmi_transport_ops { void (*mark_txdone)(struct scmi_chan_info *cinfo, int ret); void (*fetch_response)(struct scmi_chan_info *cinfo, struct scmi_xfer *xfer); + void (*fetch_notification)(struct scmi_chan_info *cinfo, + size_t max_len, struct scmi_xfer *xfer); + void (*clear_notification)(struct scmi_chan_info *cinfo); bool (*poll_done)(struct scmi_chan_info *cinfo, struct scmi_xfer *xfer); }; @@ -225,5 +230,8 @@ void shmem_tx_prepare(struct scmi_shared_mem __iomem *shmem, u32 shmem_read_header(struct scmi_shared_mem __iomem *shmem); void shmem_fetch_response(struct scmi_shared_mem __iomem *shmem, struct scmi_xfer *xfer); +void shmem_fetch_notification(struct scmi_shared_mem __iomem *shmem, + size_t max_len, struct scmi_xfer *xfer); +void shmem_clear_notification(struct scmi_shared_mem __iomem *shmem); bool shmem_poll_done(struct scmi_shared_mem __iomem *shmem, struct scmi_xfer *xfer); -- cgit v1.2.3