Re: [PATCH v2] nvmem: core: Set no-read-write provider to avoid userspace read/write

[Srinivas Kandagatla]

On 17/03/2019 14:12, Gaurav Kohli wrote:
> Current nvmem framework allows user space to read all register space
> populated by nvmem binary file, In case we don't want to expose value
> of registers to userspace and only want kernel space to read cell
> value from nvmem_cell_read_u32.
>
> To protect the same, Add no-read-write property to prevent read
> from userspace.

Can you explain the real need of this?
Is there any issue you are noticing while reading nvmem content from 
userspace?

I don't think this is the right way to do this, its misleading in many 
ways. Also this should not be a part of DT binding.

If we decide that we need this feature, then better way to do this using 
a new Kernel config.

thanks,
srini