Re: [PATCH 2/9] dt-bindings: phy: bcm-ns-usb3-phy: Describe the NSP variant

From: Rob Herring <robh@kernel.org>
To: Florian Fainelli <florian.fainelli@broadcom.com>
Cc: linux-arm-kernel@lists.infradead.org,
	"Vinod Koul" <vkoul@kernel.org>,
	"Neil Armstrong" <neil.armstrong@linaro.org>,
	"Manivannan Sadhasivam" <mani@kernel.org>,
	"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
	"Conor Dooley" <conor+dt@kernel.org>,
	"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
	"Ray Jui" <rjui@broadcom.com>,
	"Scott Branden" <sbranden@broadcom.com>,
	"Broadcom internal kernel review list"
	<bcm-kernel-feedback-list@broadcom.com>,
	"Alan Stern" <stern@rowland.harvard.edu>,
	"Rafał Miłecki" <rafal@milecki.pl>,
	"Kishon Vijay Abraham I" <kishon@kernel.org>,
	"Yendapally Reddy Dhananjaya Reddy"
	<yendapally.reddy@broadcom.com>,
	"open list:GENERIC PHY FRAMEWORK" <linux-phy@lists.infradead.org>,
	"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
	<devicetree@vger.kernel.org>,
	"open list" <linux-kernel@vger.kernel.org>,
	"open list:USB SUBSYSTEM" <linux-usb@vger.kernel.org>
Subject: Re: [PATCH 2/9] dt-bindings: phy: bcm-ns-usb3-phy: Describe the NSP variant
Date: Mon, 2 Nov 2026 08:45:26 -0600	[thread overview]
Message-ID: <20261102144526.GD1232511-robh@kernel.org> (raw)
In-Reply-To: <20261021172819.668120-3-florian.fainelli@broadcom.com>

On Wed, Oct 21, 2026 at 10:28:11AM -0700, Florian Fainelli wrote:
> Northstar Plus uses the Northstar Bx PHY register sequence but also
> requires coordinated USB2 and USB3 core resets and a USB2 IDM interface
> clock enable.
> 
> Add an NSP compatible with a required USB2 DMP phandle. Describe the
> shared PHY relationship with EHCI, OHCI and xHCI so initialization
> finishes before any host starts operating.
> 
> Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
> ---
>  .../bindings/phy/bcm-ns-usb3-phy.yaml         | 23 +++++++++++++++++++
>  1 file changed, 23 insertions(+)

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