drivers/usb/acpi: Add support for privacy_gpio

Some devices, such as cameras, can implement a physical switch to
disable the input on demand. Think of it like the typical privacy
sticker on the notebooks, but more elegant.

In order to notify the system about the status this feature, a GPIO is
typically used.

The map between a GPIO and the feature is done via ACPI, the same way as
the reset_gpio works.

This patch implements an extra field for the described privacy gpio.
This gpio does not require any extra handling from the power management.

BUG=b:169840271

Change-Id: Idcc65c9a13eca6f076ac3c68aaa1bed3c481df3d
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46961
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>

0 files changed, 0 insertions, 0 deletions