Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S936496AbcLTREj (ORCPT ); Tue, 20 Dec 2016 12:04:39 -0500 Received: from smtp.codeaurora.org ([198.145.29.96]:60724 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S936428AbcLTREY (ORCPT ); Tue, 20 Dec 2016 12:04:24 -0500 DMARC-Filter: OpenDMARC Filter v1.3.1 smtp.codeaurora.org 638C961254 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=pass smtp.mailfrom=vivek.gautam@codeaurora.org From: Vivek Gautam To: robh+dt@kernel.org, kishon@ti.com, sboyd@codeaurora.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org Cc: mark.rutland@arm.com, srinivas.kandagatla@linaro.org, linux-arm-msm@vger.kernel.org, Vivek Gautam Subject: [PATCH v3 3/4] dt-bindings: phy: Add support for QMP phy Date: Tue, 20 Dec 2016 22:33:50 +0530 Message-Id: <1482253431-23160-4-git-send-email-vivek.gautam@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1482253431-23160-1-git-send-email-vivek.gautam@codeaurora.org> References: <1482253431-23160-1-git-send-email-vivek.gautam@codeaurora.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4047 Lines: 106 Qualcomm chipsets have QMP phy controller that provides support to a number of controller, viz. PCIe, UFS, and USB. Adding dt binding information for the same. Signed-off-by: Vivek Gautam Acked-by: Rob Herring --- Changes since v2: - Removed binding for "ref_clk_src" since we don't request this clock in the driver. - Addressed s/ref_clk/ref. Don't need to add '_clk' suffix to clock names. - Using 'phy' for the node name. Changes since v1: - New patch, forked out of the original driver patch: "phy: qcom-qmp: new qmp phy driver for qcom-chipsets" - updated bindings to include mem resource as a list of offset - length pair for serdes block and for each lane. - added a new binding for 'lane-offsets' that contains offsets to tx, rx and pcs blocks from each lane base address. .../devicetree/bindings/phy/qcom-qmp-phy.txt | 71 ++++++++++++++++++++++ 1 file changed, 71 insertions(+) create mode 100644 Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt diff --git a/Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt b/Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt new file mode 100644 index 000000000000..af9ada87a4e9 --- /dev/null +++ b/Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt @@ -0,0 +1,71 @@ +Qualcomm QMP PHY controller +=========================== + +QMP phy controller supports physical layer functionality for a number of +controllers on Qualcomm chipsets, such as, PCIe, UFS, and USB. + +Required properties: + - compatible: compatible list, contains: + "qcom,msm8996-qmp-pcie-phy" for 14nm PCIe phy on msm8996, + "qcom,msm8996-qmp-usb3-phy" for 14nm USB3 phy on msm8996. + - reg: list of offset and length pair of the PHY register sets. + at index 0: offset and length of register set for PHY common + serdes block. + from index 1 - N: offset and length of register set for each lane, + for N number of phy lanes (ports). + - lane-offsets: array of offsets to tx, rx and pcs blocks for phy lanes. + - #phy-cells: must be 1 + - Cell after phy phandle should be the port (lane) number. + - clocks: a list of phandles and clock-specifier pairs, + one for each entry in clock-names. + - clock-names: must be "cfg_ahb" for phy config clock, + "aux" for phy aux clock, + "ref" for 19.2 MHz ref clk, + "pipe" for pipe clock specific to + each port/lane (Optional). + - resets: a list of phandles and reset controller specifier pairs, + one for each entry in reset-names. + - reset-names: must be "phy" for reset of phy block, + "common" for phy common block reset, + "cfg" for phy's ahb cfg block reset (Optional). + "port" for reset specific to + each port/lane (Optional). + - vdda-phy-supply: Phandle to a regulator supply to PHY core block. + - vdda-pll-supply: Phandle to 1.8V regulator supply to PHY refclk pll block. + +Optional properties: + - vddp-ref-clk-supply: Phandle to a regulator supply to any specific refclk + pll block. + +Example: + pcie_phy: phy@34000 { + compatible = "qcom,msm8996-qmp-pcie-phy"; + reg = <0x034000 0x48f>, + <0x035000 0x5bf>, + <0x036000 0x5bf>, + <0x037000 0x5bf>; + /* tx, rx, pcs */ + lane-offsets = <0x0 0x200 0x400>; + #phy-cells = <1>; + + clocks = <&gcc GCC_PCIE_PHY_AUX_CLK>, + <&gcc GCC_PCIE_PHY_CFG_AHB_CLK>, + <&gcc GCC_PCIE_CLKREF_CLK>, + <&gcc GCC_PCIE_0_PIPE_CLK>, + <&gcc GCC_PCIE_1_PIPE_CLK>, + <&gcc GCC_PCIE_2_PIPE_CLK>; + clock-names = "aux", "cfg_ahb", "ref", + "pipe0", "pipe1", "pipe2"; + + vdda-phy-supply = <&pm8994_l28>; + vdda-pll-supply = <&pm8994_l12>; + + resets = <&gcc GCC_PCIE_PHY_BCR>, + <&gcc GCC_PCIE_PHY_COM_BCR>, + <&gcc GCC_PCIE_PHY_COM_NOCSR_BCR>, + <&gcc GCC_PCIE_0_PHY_BCR>, + <&gcc GCC_PCIE_1_PHY_BCR>, + <&gcc GCC_PCIE_2_PHY_BCR>; + reset-names = "phy", "common", "cfg", + "lane0", "lane1", "lane2"; + }; -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project