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449e38427f
Let userspace know what the access map for the device is. This is helpful for verifying that the access map is correctly configured and could also be useful for programs that try to work with the data. File format is: register: R W V P where R, W, V and P are 'y' or 'n' showing readable, writable, volatile and precious respectively. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>