On Thu, Aug 5, 2021 at 7:42 PM Piyush Mehta [off-list ref] wrote:

Add Xilinx ZynqMP firmware MMIO APIs support to set and get PS_MODE
pins value and status. These APIs create an interface path between
mode pin controller driver and low-level API to access GPIO pins.

Signed-off-by: Piyush Mehta <redacted>
---
Changes in v2:
- Added Xilinx ZynqMP firmware MMIO API support to set and get pin
  value and status.

I doubt this is "GPIO".
General Purpose? I think not. It seems to be about boot mode.

If you need a userspace ABI, then add sysfs files to this firmware
driver instead of bridging it to the GPIO subsystem.

However I can be argued down from usecases etc that it is used as
GPIO but I need to push back on this.

Yours,
Linus Walleij

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