From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C3FD0606A325 for ; Fri, 30 Oct 2026 18:22:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=hOKAwDLp; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=F2ISqEj/ DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To: Content-Transfer-Encoding:Content-Type:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Unsubscribe-Post:List-Owner; bh=5nv0wC5Go1XJNaxDD1nOfqVCMVLbai1ksiJmJqJBQiY=; b=hOKAwDLpWk35h/h9Txe/3B+B17 s3R5p8Um7FmRcI9TdOKNfCm/M+BmfJ8xTbeOfENEZlUP32YlIhqcY9K61wZf/uviH2M8fSWxYhdRi S1cJdgvUqlBEHU6aPSSYuzhB/DqW1hqUI65gXOncH1PngbBGLK6zP9fLIP7skiyB0cD8qhPOL3TGx eDb5+FdADuEVBNE4XukWSMT63w24VUCWv+hDdrF1AaDkVL1VcQzAc/y+EfkWvBHIWOUFvBzfFFDG1 6BKp2ks8LhGCAH+nloSYc7jHDavz+b6ME6sJcu7peX3wLvcGv3g3A7kuInBEVfrzsCzllBNktRIki YaV/bQzA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.100.1 #2 (Red Hat Linux)) id 1xMrEk-0000000COm4-0UOl; Fri, 30 Oct 2026 18:21:58 +0000 Received: from sea.source.kernel.org ([172.234.252.31]) by bombadil.infradead.org with esmtps (Exim 4.100.1 #2 (Red Hat Linux)) id 1xMrEi-0000000COln-0w0g; Fri, 30 Oct 2026 18:21:56 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id F2AD543C81; Fri, 30 Oct 2026 18:21:55 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 731F21F000C1; Fri, 30 Oct 2026 18:21:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793384515; bh=5nv0wC5Go1XJNaxDD1nOfqVCMVLbai1ksiJmJqJBQiY=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=F2ISqEj/jPFHsaWT4fWEIwvawOQdaVOY4wkBPBZLVvmitSZblbsI/J643p8P7gpbc Hb7omRlAG9gvX7leULcIVigq+YZfKDVsRrTqb9ZS9R7Xu1pmuhAor805J6AsRJIjpQ BR7x/471R3zaQZvk8VDig1A1VxrPjIQU4ro3lSdFTq2hDgGKjbFfSNurLKvAM1YTu8 16jhr4K+Y9cT2tlBeehNwizvzvRWsEubccTWjQeMIIlpiwd/yp6pxDprc8LqlpY+St WwWx+ONeNJUmFgoYDVxh+YOHlaRemuEQo3poj9WuljxHGS85YN6pEo5HnxwtpyPYs2 rfT/Fx8AEt3VA== Date: Fri, 30 Oct 2026 13:21:51 -0500 From: Rob Herring To: Florian Fainelli Cc: linux-arm-kernel@lists.infradead.org, Vinod Koul , Neil Armstrong , Manivannan Sadhasivam , Krzysztof Kozlowski , Conor Dooley , Greg Kroah-Hartman , Ray Jui , Scott Branden , Broadcom internal kernel review list , Alan Stern , =?utf-8?B?UmFmYcWCIE1pxYJlY2tp?= , Kishon Vijay Abraham I , Yendapally Reddy Dhananjaya Reddy , "open list:GENERIC PHY FRAMEWORK" , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , open list , "open list:USB SUBSYSTEM" Subject: Re: [PATCH 2/9] dt-bindings: phy: bcm-ns-usb3-phy: Describe the NSP variant Message-ID: <20261030182151.GA1206797-robh@kernel.org> References: <20261021172819.668120-1-florian.fainelli@broadcom.com> <20261021172819.668120-3-florian.fainelli@broadcom.com> X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20261021172819.668120-3-florian.fainelli@broadcom.com> X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" X-Spam-Status: No, score=-15.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 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 > --- > .../bindings/phy/bcm-ns-usb3-phy.yaml | 23 +++++++++++++++++++ > 1 file changed, 23 insertions(+) > > diff --git a/Documentation/devicetree/bindings/phy/bcm-ns-usb3-phy.yaml b/Documentation/devicetree/bindings/phy/bcm-ns-usb3-phy.yaml > index 7fd419db45d0..00d69b86cbff 100644 > --- a/Documentation/devicetree/bindings/phy/bcm-ns-usb3-phy.yaml > +++ b/Documentation/devicetree/bindings/phy/bcm-ns-usb3-phy.yaml > @@ -14,6 +14,9 @@ description: | > Known B1: BCM4707 rev 6 > Known C0: BCM47094 rev 0 > > + Northstar Plus uses the Bx programming sequence, with coordinated USB2 and > + USB3 resets. Its PHY is shared by the EHCI, OHCI and xHCI controllers. > + > maintainers: > - Rafał Miłecki > > @@ -22,6 +25,7 @@ properties: > enum: > - brcm,ns-ax-usb3-phy > - brcm,ns-bx-usb3-phy > + - brcm,nsp-usb3-phy > > reg: > description: address of MDIO bus device > @@ -32,6 +36,13 @@ properties: > description: > Phandle to the DMP (Device Management Plugin) syscon > > + usb2-dmp-syscon: brcm,usb2-dmp > + $ref: /schemas/types.yaml#/definitions/phandle > + description: > + Phandle to the USB2 DMP on Northstar Plus, for its interface clock and > + reset. All USB host controllers must reference this shared PHY so that > + initialization completes before any of them starts using it. > + > "#phy-cells": > const: 0 > > @@ -41,6 +52,18 @@ required: > - usb3-dmp-syscon > - "#phy-cells" > > +allOf: > + - if: > + properties: > + compatible: > + const: brcm,nsp-usb3-phy > + then: > + required: > + - usb2-dmp-syscon > + else: > + properties: > + usb2-dmp-syscon: false > + > additionalProperties: false > > examples: > -- > 2.53.0 >