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[194.187.74.233]) by smtp.gmail.com with ESMTPSA id i18sm31725ljd.28.2017.05.11.06.29.47 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 11 May 2017 06:29:47 -0700 (PDT) From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= To: Kishon Vijay Abraham I Cc: Yendapally Reddy Dhananjaya Reddy , Jon Mason , Florian Fainelli , linux-arm-kernel@lists.infradead.org, bcm-kernel-feedback-list@broadcom.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Subject: [PATCH 4/5] dt-bindings: phy: Modify Broadcom NS USB 3.0 PHY binding to use MDIO Date: Thu, 11 May 2017 15:29:24 +0200 Message-Id: <20170511132925.14564-5-zajec5@gmail.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170511132925.14564-1-zajec5@gmail.com> References: <20170511132925.14564-1-zajec5@gmail.com> MIME-Version: 1.0 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Rafał Miłecki Thanks to work done by Broadcom explaining their USB 3.0 PHY details we know it's attached to the MDIO bus. Use this knowledge to update the binding: make it a subnode to the MDIO bus and rework way of specifying required registers. Signed-off-by: Rafał Miłecki --- .../devicetree/bindings/phy/bcm-ns-usb3-phy.txt | 27 +++++++++++++++------- 1 file changed, 19 insertions(+), 8 deletions(-) diff --git a/Documentation/devicetree/bindings/phy/bcm-ns-usb3-phy.txt b/Documentation/devicetree/bindings/phy/bcm-ns-usb3-phy.txt index 09aeba94538d..32f057260351 100644 --- a/Documentation/devicetree/bindings/phy/bcm-ns-usb3-phy.txt +++ b/Documentation/devicetree/bindings/phy/bcm-ns-usb3-phy.txt @@ -3,9 +3,10 @@ Driver for Broadcom Northstar USB 3.0 PHY Required properties: - compatible: one of: "brcm,ns-ax-usb3-phy", "brcm,ns-bx-usb3-phy". -- reg: register mappings for DMP (Device Management Plugin) and ChipCommon B - MMI. -- reg-names: "dmp" and "ccb-mii" +- reg: address of MDIO bus device +- usb3-dmp-syscon: phandle to syscon with DMP (Device Management Plugin) + registers +- #phy-cells: must be 0 Initialization of USB 3.0 PHY depends on Northstar version. There are currently three known series: Ax, Bx and Cx. @@ -15,9 +16,19 @@ Known B1: BCM4707 rev 6 Known C0: BCM47094 rev 0 Example: - usb3-phy { - compatible = "brcm,ns-ax-usb3-phy"; - reg = <0x18105000 0x1000>, <0x18003000 0x1000>; - reg-names = "dmp", "ccb-mii"; - #phy-cells = <0>; + mdio: mdio@0 { + reg = <0x0>; + #size-cells = <1>; + #address-cells = <0>; + + usb3-phy@10 { + compatible = "brcm,ns-ax-usb3-phy"; + reg = <0x10>; + usb3-dmp-syscon = <&usb3_dmp>; + #phy-cells = <0>; + }; + }; + + usb3_dmp: syscon@18105000 { + reg = <0x18105000 0x1000>; };