On Fri, 06 Feb 2026 17:04:53 +0800, wming126@126.com wrote:

The AP6212 WiFi/BT module on the LCKFB TaiShan Pi (RK3566) is prone to
communication timeouts and reset failures (error -110) when operating at
3 Mbps.

This patch stabilizes the Bluetooth interface by:
1. Updating the compatible string to 'brcm,bcm43430a1-bt' to better reflect
   the actual chip revision used in the AP6212 module.
2. Lowering the maximum UART baud rate from 3,000,000 to 1,500,000 bps.
   Tests show that 1.5 Mbps is the reliable upper limit for this board's
   UART configuration, eliminating the initialization timeouts.

[...]

Applied, thanks!

[1/1] arm64: dts: rockchip: Fix Bluetooth stability on LCKFB TaiShan Pi
      commit: c215b9681a1cae05e8d52b5b57ffde2f17fd3029

Best regards,
-- 
Heiko Stuebner [off-list ref]