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Fri, 30 Oct 2026 12:14:56 -0700 (PDT) X-Received: by 2002:ad4:5c61:0:b0:91b:5d39:e13b with SMTP id 6a1803df08f44-91ca4bda1d7mr54316986d6.48.1793387696200; Fri, 30 Oct 2026 12:14:56 -0700 (PDT) Received: from [10.67.48.245] ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-91ca7f3db1asm23125436d6.16.2026.10.30.12.14.53 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 30 Oct 2026 12:14:55 -0700 (PDT) Message-ID: Date: Fri, 30 Oct 2026 12:14:52 -0700 X-Archived-By: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/9] dt-bindings: phy: bcm-ns-usb3-phy: Describe the NSP variant To: Rob Herring 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" References: <20261021172819.668120-1-florian.fainelli@broadcom.com> <20261021172819.668120-3-florian.fainelli@broadcom.com> <20261030182151.GA1206797-robh@kernel.org> Content-Language: en-US, fr-FR From: Florian Fainelli Autocrypt: addr=florian.fainelli@broadcom.com; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-DetectorID-Processed: b00c1d49-9d2e-4205-b15f-d015386d3d5e X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261030_121500_104523_F984A664 X-CRM114-Status: GOOD ( 13.36 ) X-Spam-Score: -2.1 (--) 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=-17.4 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,USER_AGENT_SANE_1 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 10/30/26 11:21, Rob Herring wrote: > 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 That would be inconsistent with the usb3-dmp-syscon property that is pre-existing, hence the name chosen here. -- Florian