In U-Boot, the discovery of TA based on its UUID on the TEE bus is not supported.
This patch only binds the driver associated to the new supported OP-TEE TA = TA_HWRNG when this driver is enable.
Signed-off-by: Patrick Delaunay patrick.delaunay@foss.st.com ---
drivers/tee/optee/core.c | 13 +++++++++++++ 1 file changed, 13 insertions(+)
diff --git a/drivers/tee/optee/core.c b/drivers/tee/optee/core.c index dad46aa388..a89d62aaf0 100644 --- a/drivers/tee/optee/core.c +++ b/drivers/tee/optee/core.c @@ -7,6 +7,7 @@ #include <cpu_func.h> #include <dm.h> #include <dm/device_compat.h> +#include <dm/lists.h> #include <log.h> #include <malloc.h> #include <tee.h> @@ -641,6 +642,8 @@ static int optee_probe(struct udevice *dev) { struct optee_pdata *pdata = dev_get_plat(dev); u32 sec_caps; + struct udevice *child; + int ret;
if (!is_optee_api(pdata->invoke_fn)) { dev_err(dev, "OP-TEE api uid mismatch\n"); @@ -665,6 +668,16 @@ static int optee_probe(struct udevice *dev) return -ENOENT; }
+ /* + * in U-Boot, the discovery of TA on the TEE bus is not supported: + * only bind the drivers associated to the supported OP-TEE TA + */ + if (IS_ENABLED(CONFIG_RNG_OPTEE)) { + ret = device_bind_driver(dev, "optee-rng", "optee-rng", &child); + if (ret) + return ret; + } + return 0; }