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OP-TEE message UID check API can be useful to know whether OP-TEE is enabled on not assuming the corresponding SMC call is properly handled if OP-TEE is not supported. This API can be used by platform code to know OP-TEE presence and on that basis OP-TEE DT node can be added as part of DT fixups for the OP-TEE driver probe to happen for both U-Boot and Linux. Signed-off-by: Sumit Garg <sumit.garg@oss.qualcomm.com> Reviewed-by: Casey Connolly <casey.connolly@linaro.org> Link: https://patch.msgid.link/20260127062341.723966-2-sumit.garg@kernel.org Signed-off-by: Casey Connolly <casey.connolly@linaro.org>