[PATCH v15 1/6] phy: rockchip: usbdp: Add phy reset notification support

[Manivannan Sadhasivam]

On Tue, Sep 15, 2026 at 05:32:48PM +0200, Sebastian Reichel wrote:
> To resolve issues with running into permanent "cmn ana lcpll lock
> timeout" errors after a few device replugs, add support for reset
> notifications, which will be handled by the DWC3 driver to gracefully
> handle the PHY being disabled. This avoids corrupting the controller's
> internal state and the PIPE interface between the USB3 controller and
> the PHY, thus fixing the issue.
> 
> Tested-by: Igor Paunovic <royalnet026 at gmail.com> # Orange Pi 5 Plus
> Signed-off-by: Sebastian Reichel <sebastian.reichel at collabora.com>
> ---
>  drivers/phy/rockchip/phy-rockchip-usbdp.c | 19 +++++++++++++++++--
>  1 file changed, 17 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/phy/rockchip/phy-rockchip-usbdp.c b/drivers/phy/rockchip/phy-rockchip-usbdp.c
> index e748acdd2d31..0f39982c70b1 100644
> --- a/drivers/phy/rockchip/phy-rockchip-usbdp.c
> +++ b/drivers/phy/rockchip/phy-rockchip-usbdp.c
> @@ -1004,24 +1004,39 @@ static int rk_udphy_power_on(struct rk_udphy *udphy, u8 mode)
>  	}
>  
>  	if (udphy->status == UDPHY_MODE_NONE) {
> +		phy_notify_reset(udphy->phy_u3, PHY_NOTIFY_PRE_RESET);
> +
> +		rk_udphy_u3_port_disable(udphy, true);

This change is not described in the commit message.

- Mani

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