In U-Boot driver model the devices can be referenced by phandle in the U-Boot configuration nodes.
Without a valid node provided during the bind, the driver associated to OP-TEE TA can't be referenced.
For example to force the sequence number with alias (.flags = DM_UC_FLAG_SEQ_ALIAS)
aliases { rng0 = &optee; };
or other configuration:
board-sysinfo { compatible = "vendor,sysinfo-board"; ramdom = <&optee>; }
With this patch all drivers bound from OP-TEE service discovery are now associated are associated to OP-TEE node, allowing to identify by phandle the driver provided by the TA for one UCLASS without modifying device tree.
Signed-off-by: Patrick Delaunay patrick.delaunay@foss.st.com ---
drivers/tee/optee/core.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/tee/optee/core.c b/drivers/tee/optee/core.c index 9240277579be..96f08074443f 100644 --- a/drivers/tee/optee/core.c +++ b/drivers/tee/optee/core.c @@ -92,7 +92,8 @@ static int bind_service_list(struct udevice *dev, struct tee_shm *service_list, if (!service) continue;
- ret = device_bind_driver(dev, service->driver_name, service->driver_name, NULL); + ret = device_bind_driver_to_node(dev, service->driver_name, service->driver_name, + dev_ofnode(dev), NULL); if (ret) { dev_warn(dev, "%s was not bound: %d, ignored\n", service->driver_name, ret); continue; @@ -832,7 +833,8 @@ static int optee_probe(struct udevice *dev) * Discovery of TAs on the TEE bus is not supported in U-Boot: * only bind the drivers associated to the supported OP-TEE TA */ - ret = device_bind_driver(dev, "optee-rng", "optee-rng", NULL); + ret = device_bind_driver_to_node(dev, "optee-rng", "optee-rng", + dev_ofnode(dev), NULL); if (ret) return ret; }