On 01/11/2018 10:33 AM, Grant Likely wrote:

What level of access control is implemented here? Is there access
control for each GPIO individually, or is it done by banks of GPIOs?
Just asking to make sure I understand the problem domain.

On our ACPI system, it's specific GPIOs.  Each GPIO is in its own 64k 
page, which is what allows us to block specific ones.

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