diff options
| author | Alice Guo <[email protected]> | 2025-04-28 18:37:24 +0800 |
|---|---|---|
| committer | Fabio Estevam <[email protected]> | 2025-05-03 16:55:32 -0300 |
| commit | b4f3fab643324d41ff0074ebed49713ddd4009eb (patch) | |
| tree | ecf640d24b84461f3c5ab55fb5d315613a8e13a8 | |
| parent | 0c8a89d252c3db3401ffa572ee2e4dfcb94e2c3b (diff) | |
firmware: scmi: support to manage SCMI protocol drivers with a linker-genetated array
U_BOOT_SCMI_PROTO_DRIVER macro is used to add a SCMI protocol driver to
scmi_proto_driver list. scmi_proto_driver_get() function can be used to
match a SCMI protocol id and its driver.
Signed-off-by: Alice Guo <[email protected]>
| -rw-r--r-- | drivers/firmware/scmi/scmi_agent-uclass.c | 16 | ||||
| -rw-r--r-- | include/scmi_agent-uclass.h | 15 |
2 files changed, 31 insertions, 0 deletions
diff --git a/drivers/firmware/scmi/scmi_agent-uclass.c b/drivers/firmware/scmi/scmi_agent-uclass.c index e6e43ae936a..ea79cfa0cf2 100644 --- a/drivers/firmware/scmi/scmi_agent-uclass.c +++ b/drivers/firmware/scmi/scmi_agent-uclass.c @@ -352,6 +352,22 @@ static int scmi_fill_base_info(struct udevice *agent, struct udevice *dev) return 0; } +static struct driver *scmi_proto_driver_get(unsigned int proto_id) +{ + struct scmi_proto_driver *start, *entry; + int n_ents; + + start = ll_entry_start(struct scmi_proto_driver, scmi_proto_driver); + n_ents = ll_entry_count(struct scmi_proto_driver, scmi_proto_driver); + + for (entry = start; entry != start + n_ents; entry++) { + if (entry->match->proto_id == proto_id) + return entry->driver; + } + + return NULL; +} + /* * SCMI agent devices binds devices of various uclasses depending on * the FDT description. scmi_bind_protocol() is a generic bind sequence diff --git a/include/scmi_agent-uclass.h b/include/scmi_agent-uclass.h index 33e0e18c30d..842c56858af 100644 --- a/include/scmi_agent-uclass.h +++ b/include/scmi_agent-uclass.h @@ -115,4 +115,19 @@ struct scmi_agent_ops { struct scmi_msg *msg); }; +struct scmi_proto_match { + unsigned int proto_id; +}; + +struct scmi_proto_driver { + struct driver *driver; + const struct scmi_proto_match *match; +}; + +#define U_BOOT_SCMI_PROTO_DRIVER(__name, __match) \ + ll_entry_declare(struct scmi_proto_driver, __name, scmi_proto_driver) = { \ + .driver = llsym(struct driver, __name, driver), \ + .match = __match, \ + } + #endif /* _SCMI_TRANSPORT_UCLASS_H */ |