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| author | Cristian Marussi <cristian.marussi@arm.com> | 2020-03-27 17:34:28 +0300 |
|---|---|---|
| committer | Sudeep Holla <sudeep.holla@arm.com> | 2020-04-14 11:31:49 +0300 |
| commit | d5141f37c42e0b833863f157ac4cee203b2ba3d2 (patch) | |
| tree | 42e7b9822217fc4d06498b05f1855edb071c7c0f /drivers/firmware/arm_scmi/common.h | |
| parent | 2264417a9a99babcc45960f28057a04c24919efb (diff) | |
| download | linux-d5141f37c42e0b833863f157ac4cee203b2ba3d2.tar.xz | |
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 <Jonathan.Cameron@huawei.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Diffstat (limited to 'drivers/firmware/arm_scmi/common.h')
| -rw-r--r-- | drivers/firmware/arm_scmi/common.h | 8 |
1 files changed, 8 insertions, 0 deletions
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); |