On Tue, 23 Mar 2021 15:02:45 +0800, Chunfeng Yun wrote:

These two HW of wakeup don't follow MediaTek internal IPM rule,
and both use a specific way, like as early revision of mt8173.

Due to the index 2 already used by many DTS, it's better to keep
it unchanged for backward compatibility, treat specific ones without
following IPM rule as revision 1.x, meanwhile reserve 3~99 for
later revision that following the IPM rule.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
---
v2: modify revision format
---
 .../devicetree/bindings/usb/mediatek,mtu3.yaml         | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

Reviewed-by: Rob Herring <robh@kernel.org>