Hi, Patches 1-5 come from a bigger patchset that was cut in smaller pieces for easier integration to mainline. (The patchset was https://lkml.org/lkml/2019/3/27/1837)
These patches are the exact same as the ones found in the patchset shown above, with the exception of patch [1/7] which now uses device_node_to_regmap(). This function was added in a prior patch, now merged in the MIPS tree. For that reason this patchset is based on the ingenic-tcu-v5.4 branch of the MIPS tree (git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux.git). Thanks, -Paul