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Create read-only debugfs entries for LOGINIT, LOGRM, and LOGINTR, which are the three primary printf logging buffers from GSP-RM. LOGPMU will be added at a later date, as it requires support for its RPC message first. This patch uses the `pin_init_scope` feature to create the entries. `pin_init_scope` solves the lifetime issue over the `DEBUGFS_ROOT` reference by delaying its acquisition until the time the entry is actually initialized. Co-developed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Timur Tabi <ttabi@nvidia.com> Tested-by: John Hubbard <jhubbard@nvidia.com> Tested-by: Eliot Courtney <ecourtney@nvidia.com> Link: https://patch.msgid.link/20260319212658.2541610-7-ttabi@nvidia.com [ Rebase onto Coherent<T> changes. - Danilo ] Signed-off-by: Danilo Krummrich <dakr@kernel.org>