Hi, On 9/6/22 11:37, Ilias Apalodimas wrote:
Late versions of OP-TEE support a pseudo bus. TAs that behave as hardware blocks (e.g TPM, RNG etc) present themselves on a bus which we can scan. Unfortunately U-Boot doesn't support that yet. It's worth noting that we already have a workaround for RNG. The details are in commit 70812bb83da6 ("tee: optee: bind rng optee driver")So let's add a list of devices based on U-Boot Kconfig options that we will scan until we properly implement the tee-bus functionality. While at it change the behaviour of the tee core itself wrt to device binding. If some device binding fails, print a warning instead of disabling OP-TEE. Signed-off-by: Ilias Apalodimas <[email protected]> Reviewed-by: Jens Wiklander <[email protected]> Reviewed-by: Etienne Carriere <[email protected]> --- Changes since v3: - Use NULL instead of a child ptr on device_bind_driver(), since it's not really needed - Changed the style of the optee_bus_probe[] definition to {.drv_name = xxx, .dev_name = yyy } Changes since v2: - Fixed typo on driver name ftpm-tee -> ftpm_tee Changes since v1: - remove a macro and use ARRAY_SIZE directly drivers/tee/optee/core.c | 24 +++++++++++++++++++----- 1 file changed, 19 insertions(+), 5 deletions(-)
Reviewed-by: Patrick Delaunay <[email protected]> Thanks Patrick
