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Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com> says: Add the basic 'hello world ta' command which increments the value passed. This provides easy test for establishing a session with OP-TEE TA and verify. It includes following subcommands: optee hello optee hello <value>; value to increment via OP-TEE HELLO WORLD TA. Link: https://lore.kernel.org/r/20241219043918.1646095-1-venkatesh.abbarapu@amd.com