[PATCH v14 3/3] phy: airoha: Add support for Airoha AN7581 USB PHY

[Manivannan Sadhasivam]

On 2026-10-06 12:29 +0200, Christian Marangi wrote:
> Add support for Airoha AN7581 USB PHY driver. AN7581 supports up to 2
> USB port with USB 2.0 mode always supported and USB 3.0 mode available
> only if the Serdes port is correctly configured for USB 3.0.
> 
> If the USB 3.0 mode is not configured, the modes needs to be also
> disabled in the xHCI node or the driver will report unsable clock and
> fail probe.
> 
> For USB 2.0 Slew Rate calibration, airoha,usb2-monitor-clk-sel is
> mandatory and is used to select the monitor clock for calibration.
> 
> Normally it's 1 for USB port 1 and 2 for USB port 2.
> 
> Signed-off-by: Christian Marangi <ansuelsmth at gmail.com>

Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam at oss.qualcomm.com>

- Mani