On Tue, Oct 21, 2025 at 09:35:45AM +0800, Ryan Chen wrote:

The AST2600 I2C controller is a new hardware design compared to the
I2C controllers in previous ASPEED SoCs (e.g., AST2400, AST2500).

It introduces new features such as:
 - A redesigned register layout
 - Separation between controller and target mode registers
 - Transfer mode selection (byte, buffer, DMA)
 - Support for a shared global register block for configuration

Due to these fundamental differences, maintaining a separate
devicetree binding file for AST2600 helps to clearly distinguish

No, that's not a valid reason. You just moved the compatible and are
still 100% identical, at least according to this commit msg, so there is
no point in this patch.

NAK

Best regards,
Krzysztof