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Message-ID: <20200429190602.GU4525@google.com>
Date: Wed, 29 Apr 2020 12:06:02 -0700
From: Matthias Kaehlcke <mka@...omium.org>
To: Sandeep Maheswaram <sanm@...eaurora.org>
Cc: Andy Gross <agross@...nel.org>,
Bjorn Andersson <bjorn.andersson@...aro.org>,
Kishon Vijay Abraham I <kishon@...com>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Stephen Boyd <swboyd@...omium.org>,
Doug Anderson <dianders@...omium.org>,
linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org, Manu Gautam <mgautam@...eaurora.org>
Subject: Re: [PATCH v6 1/4] dt-bindings: phy: qcom,qmp: Convert QMP PHY
bindings to yaml
On Tue, Apr 28, 2020 at 07:36:12PM +0530, Sandeep Maheswaram wrote:
> Convert QMP PHY bindings to DT schema format using json-schema.
NACK (not sure if that carries any weight ;-)
v6 of this patch removes the binding of USB3 DP PHY during the conversion,
which is then added again as .yaml by "[2/4] dt-bindings: phy: qcom,qmp-usb3-dp:
Add dt bindings for USB3 DP PHY" (https://patchwork.kernel.org/patch/11514767/).
See my reply on that patch for what to do instead.
> Signed-off-by: Sandeep Maheswaram <sanm@...eaurora.org>
> Reviewed-by: Rob Herring <robh@...nel.org>
> ---
> .../devicetree/bindings/phy/qcom,qmp-phy.yaml | 311 +++++++++++++++++++++
> .../devicetree/bindings/phy/qcom-qmp-phy.txt | 242 ----------------
> 2 files changed, 311 insertions(+), 242 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/phy/qcom,qmp-phy.yaml
> delete mode 100644 Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt
>
> diff --git a/Documentation/devicetree/bindings/phy/qcom,qmp-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,qmp-phy.yaml
> new file mode 100644
> index 0000000..7da2be6
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/phy/qcom,qmp-phy.yaml
> @@ -0,0 +1,311 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/phy/qcom,qmp-phy.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> +
> +title: Qualcomm QMP PHY controller
> +
> +maintainers:
> + - Manu Gautam <mgautam@...eaurora.org>
> +
> +description:
> + QMP phy controller supports physical layer functionality for a number of
> + controllers on Qualcomm chipsets, such as, PCIe, UFS, and USB.
> +
> +properties:
> + compatible:
> + enum:
> + - qcom,ipq8074-qmp-pcie-phy
> + - qcom,msm8996-qmp-pcie-phy
> + - qcom,msm8996-qmp-ufs-phy
> + - qcom,msm8996-qmp-usb3-phy
> + - qcom,msm8998-qmp-pcie-phy
> + - qcom,msm8998-qmp-ufs-phy
> + - qcom,msm8998-qmp-usb3-phy
> + - qcom,sdm845-qhp-pcie-phy
> + - qcom,sdm845-qmp-pcie-phy
> + - qcom,sdm845-qmp-ufs-phy
> + - qcom,sdm845-qmp-usb3-uni-phy
> + - qcom,sm8150-qmp-ufs-phy
> +
> + reg:
> + items:
> + - description: Address and length of PHY's common serdes block.
> +
> + "#clock-cells":
> + enum: [ 1, 2 ]
> +
> + "#address-cells":
> + enum: [ 1, 2 ]
> +
> + "#size-cells":
> + enum: [ 1, 2 ]
> +
> + clocks:
> + minItems: 1
> + maxItems: 4
> +
> + clock-names:
> + minItems: 1
> + maxItems: 4
> +
> + resets:
> + minItems: 1
> + maxItems: 3
> +
> + reset-names:
> + minItems: 1
> + maxItems: 3
> +
> + vdda-phy-supply:
> + description:
> + Phandle to a regulator supply to PHY core block.
> +
> + vdda-pll-supply:
> + description:
> + Phandle to 1.8V regulator supply to PHY refclk pll block.
> +
> + vddp-ref-clk-supply:
> + description:
> + Phandle to a regulator supply to any specific refclk
> + pll block.
> +
> +#Required nodes:
> +patternProperties:
> + "^phy@[0-9a-f]+$":
> + type: object
> + description:
> + Each device node of QMP phy is required to have as many child nodes as
> + the number of lanes the PHY has.
> +
> +required:
> + - compatible
> + - reg
> + - "#clock-cells"
> + - "#address-cells"
> + - "#size-cells"
> + - clocks
> + - clock-names
> + - resets
> + - reset-names
> + - vdda-phy-supply
> + - vdda-pll-supply
> +
> +additionalProperties: false
> +
> +allOf:
> + - if:
> + properties:
> + compatible:
> + contains:
> + enum:
> + - qcom,sdm845-qmp-usb3-uni-phy
> + then:
> + properties:
> + clocks:
> + items:
> + - description: Phy aux clock.
> + - description: Phy config clock.
> + - description: 19.2 MHz ref clk.
> + - description: Phy common block aux clock.
> + clock-names:
> + items:
> + - const: aux
> + - const: cfg_ahb
> + - const: ref
> + - const: com_aux
> + resets:
> + items:
> + - description: reset of phy block.
> + - description: phy common block reset.
> + reset-names:
> + items:
> + - const: phy
> + - const: common
> + - if:
> + properties:
> + compatible:
> + contains:
> + enum:
> + - qcom,msm8996-qmp-pcie-phy
> + then:
> + properties:
> + clocks:
> + items:
> + - description: Phy aux clock.
> + - description: Phy config clock.
> + - description: 19.2 MHz ref clk.
> + clock-names:
> + items:
> + - const: aux
> + - const: cfg_ahb
> + - const: ref
> + resets:
> + items:
> + - description: reset of phy block.
> + - description: phy common block reset.
> + - description: phy's ahb cfg block reset.
> + reset-names:
> + items:
> + - const: phy
> + - const: common
> + - const: cfg
> + - if:
> + properties:
> + compatible:
> + contains:
> + enum:
> + - qcom,msm8996-qmp-usb3-phy
> + - qcom,msm8998-qmp-pcie-phy
> + - qcom,msm8998-qmp-usb3-phy
> + then:
> + properties:
> + clocks:
> + items:
> + - description: Phy aux clock.
> + - description: Phy config clock.
> + - description: 19.2 MHz ref clk.
> + clock-names:
> + items:
> + - const: aux
> + - const: cfg_ahb
> + - const: ref
> + resets:
> + items:
> + - description: reset of phy block.
> + - description: phy common block reset.
> + reset-names:
> + items:
> + - const: phy
> + - const: common
> + - if:
> + properties:
> + compatible:
> + contains:
> + enum:
> + - qcom,msm8996-qmp-ufs-phy
> + then:
> + properties:
> + clocks:
> + items:
> + - description: 19.2 MHz ref clk.
> + clock-names:
> + items:
> + - const: ref
> + resets:
> + items:
> + - description: PHY reset in the UFS controller.
> + reset-names:
> + items:
> + - const: ufsphy
> + - if:
> + properties:
> + compatible:
> + contains:
> + enum:
> + - qcom,msm8998-qmp-ufs-phy
> + - qcom,sdm845-qmp-ufs-phy
> + - qcom,sm8150-qmp-ufs-phy
> + then:
> + properties:
> + clocks:
> + items:
> + - description: 19.2 MHz ref clk.
> + - description: Phy reference aux clock.
> + clock-names:
> + items:
> + - const: ref
> + - const: ref_aux
> + resets:
> + items:
> + - description: PHY reset in the UFS controller.
> + reset-names:
> + items:
> + - const: ufsphy
> + - if:
> + properties:
> + compatible:
> + contains:
> + enum:
> + - qcom,ipq8074-qmp-pcie-phy
> + then:
> + properties:
> + clocks:
> + items:
> + - description: pipe clk.
> + clock-names:
> + items:
> + - const: pipe_clk
> + resets:
> + items:
> + - description: reset of phy block.
> + - description: phy common block reset.
> + reset-names:
> + items:
> + - const: phy
> + - const: common
> + - if:
> + properties:
> + compatible:
> + contains:
> + enum:
> + - qcom,sdm845-qhp-pcie-phy
> + - qcom,sdm845-qmp-pcie-phy
> + then:
> + properties:
> + clocks:
> + items:
> + - description: Phy aux clock.
> + - description: Phy config clock.
> + - description: 19.2 MHz ref clk.
> + - description: Phy refgen clk.
> + clock-names:
> + items:
> + - const: aux
> + - const: cfg_ahb
> + - const: ref
> + - const: refgen
> + resets:
> + items:
> + - description: reset of phy block.
> + reset-names:
> + items:
> + - const: phy
> +
> +examples:
> + - |
> + #include <dt-bindings/clock/qcom,gcc-sdm845.h>
> + usb_2_qmpphy: phy-wrapper@...b000 {
> + compatible = "qcom,sdm845-qmp-usb3-uni-phy";
> + reg = <0 0x088eb000 0 0x18c>;
> + #clock-cells = <1>;
> + #address-cells = <2>;
> + #size-cells = <2>;
> +
> + clocks = <&gcc GCC_USB3_SEC_PHY_AUX_CLK>,
> + <&gcc GCC_USB_PHY_CFG_AHB2PHY_CLK>,
> + <&gcc GCC_USB3_SEC_CLKREF_CLK>,
> + <&gcc GCC_USB3_SEC_PHY_COM_AUX_CLK>;
> + clock-names = "aux", "cfg_ahb", "ref", "com_aux";
> +
> + resets = <&gcc GCC_USB3PHY_PHY_SEC_BCR>,
> + <&gcc GCC_USB3_PHY_SEC_BCR>;
> + reset-names = "phy", "common";
> +
> + vdda-phy-supply = <&vdda_usb2_ss_1p2>;
> + vdda-pll-supply = <&vdda_usb2_ss_core>;
> +
> + usb_2_ssphy: phy@...b200 {
> + reg = <0 0x088eb200 0 0x128>,
> + <0 0x088eb400 0 0x1fc>,
> + <0 0x088eb800 0 0x218>,
> + <0 0x088eb600 0 0x70>;
> + #clock-cells = <0>;
> + #phy-cells = <0>;
> + clocks = <&gcc GCC_USB3_SEC_PHY_PIPE_CLK>;
> + clock-names = "pipe0";
> + clock-output-names = "usb3_uni_phy_pipe_clk_src";
> + };
> + };
> diff --git a/Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt b/Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt
> deleted file mode 100644
> index 54d6f8d..0000000
> --- a/Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt
> +++ /dev/null
> @@ -1,242 +0,0 @@
> -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,ipq8074-qmp-pcie-phy" for PCIe phy on IPQ8074
> - "qcom,msm8996-qmp-pcie-phy" for 14nm PCIe phy on msm8996,
> - "qcom,msm8996-qmp-ufs-phy" for 14nm UFS phy on msm8996,
> - "qcom,msm8996-qmp-usb3-phy" for 14nm USB3 phy on msm8996,
> - "qcom,msm8998-qmp-usb3-phy" for USB3 QMP V3 phy on msm8998,
> - "qcom,msm8998-qmp-ufs-phy" for UFS QMP phy on msm8998,
> - "qcom,msm8998-qmp-pcie-phy" for PCIe QMP phy on msm8998,
> - "qcom,sdm845-qhp-pcie-phy" for QHP PCIe phy on sdm845,
> - "qcom,sdm845-qmp-pcie-phy" for QMP PCIe phy on sdm845,
> - "qcom,sdm845-qmp-usb3-phy" for USB3 QMP V3 phy on sdm845,
> - "qcom,sdm845-qmp-usb3-uni-phy" for USB3 QMP V3 UNI phy on sdm845,
> - "qcom,sdm845-qmp-ufs-phy" for UFS QMP phy on sdm845,
> - "qcom,sm8150-qmp-ufs-phy" for UFS QMP phy on sm8150.
> -
> -- reg:
> - - index 0: address and length of register set for PHY's common
> - serdes block.
> - - index 1: address and length of the DP_COM control block (for
> - "qcom,sdm845-qmp-usb3-phy" only).
> -
> -- reg-names:
> - - For "qcom,sdm845-qmp-usb3-phy":
> - - Should be: "reg-base", "dp_com"
> - - For all others:
> - - The reg-names property shouldn't be defined.
> -
> - - #address-cells: must be 1
> - - #size-cells: must be 1
> - - ranges: must be present
> -
> - - clocks: a list of phandles and clock-specifier pairs,
> - one for each entry in clock-names.
> - - clock-names: "cfg_ahb" for phy config clock,
> - "aux" for phy aux clock,
> - "ref" for 19.2 MHz ref clk,
> - "com_aux" for phy common block aux clock,
> - "ref_aux" for phy reference aux clock,
> -
> - For "qcom,ipq8074-qmp-pcie-phy": no clocks are listed.
> - For "qcom,msm8996-qmp-pcie-phy" must contain:
> - "aux", "cfg_ahb", "ref".
> - For "qcom,msm8996-qmp-ufs-phy" must contain:
> - "ref".
> - For "qcom,msm8996-qmp-usb3-phy" must contain:
> - "aux", "cfg_ahb", "ref".
> - For "qcom,msm8998-qmp-usb3-phy" must contain:
> - "aux", "cfg_ahb", "ref".
> - For "qcom,msm8998-qmp-ufs-phy" must contain:
> - "ref", "ref_aux".
> - For "qcom,msm8998-qmp-pcie-phy" must contain:
> - "aux", "cfg_ahb", "ref".
> - For "qcom,sdm845-qhp-pcie-phy" must contain:
> - "aux", "cfg_ahb", "ref", "refgen".
> - For "qcom,sdm845-qmp-pcie-phy" must contain:
> - "aux", "cfg_ahb", "ref", "refgen".
> - For "qcom,sdm845-qmp-usb3-phy" must contain:
> - "aux", "cfg_ahb", "ref", "com_aux".
> - For "qcom,sdm845-qmp-usb3-uni-phy" must contain:
> - "aux", "cfg_ahb", "ref", "com_aux".
> - For "qcom,sdm845-qmp-ufs-phy" must contain:
> - "ref", "ref_aux".
> - For "qcom,sm8150-qmp-ufs-phy" must contain:
> - "ref", "ref_aux".
> -
> - - resets: a list of phandles and reset controller specifier pairs,
> - one for each entry in reset-names.
> - - reset-names: "phy" for reset of phy block,
> - "common" for phy common block reset,
> - "cfg" for phy's ahb cfg block reset,
> - "ufsphy" for the PHY reset in the UFS controller.
> -
> - For "qcom,ipq8074-qmp-pcie-phy" must contain:
> - "phy", "common".
> - For "qcom,msm8996-qmp-pcie-phy" must contain:
> - "phy", "common", "cfg".
> - For "qcom,msm8996-qmp-ufs-phy": must contain:
> - "ufsphy".
> - For "qcom,msm8996-qmp-usb3-phy" must contain
> - "phy", "common".
> - For "qcom,msm8998-qmp-usb3-phy" must contain
> - "phy", "common".
> - For "qcom,msm8998-qmp-ufs-phy": must contain:
> - "ufsphy".
> - For "qcom,msm8998-qmp-pcie-phy" must contain:
> - "phy", "common".
> - For "qcom,sdm845-qhp-pcie-phy" must contain:
> - "phy".
> - For "qcom,sdm845-qmp-pcie-phy" must contain:
> - "phy".
> - For "qcom,sdm845-qmp-usb3-phy" must contain:
> - "phy", "common".
> - For "qcom,sdm845-qmp-usb3-uni-phy" must contain:
> - "phy", "common".
> - For "qcom,sdm845-qmp-ufs-phy": must contain:
> - "ufsphy".
> - For "qcom,sm8150-qmp-ufs-phy": must contain:
> - "ufsphy".
> -
> - - 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.
> -
> -Required nodes:
> - - Each device node of QMP phy is required to have as many child nodes as
> - the number of lanes the PHY has.
> -
> -Required properties for child nodes of PCIe PHYs (one child per lane):
> - - reg: list of offset and length pairs of register sets for PHY blocks -
> - tx, rx, pcs, and pcs_misc (optional).
> - - #phy-cells: must be 0
> -
> -Required properties for a single "lanes" child node of non-PCIe PHYs:
> - - reg: list of offset and length pairs of register sets for PHY blocks
> - For 1-lane devices:
> - tx, rx, pcs, and (optionally) pcs_misc
> - For 2-lane devices:
> - tx0, rx0, pcs, tx1, rx1, and (optionally) pcs_misc
> - - #phy-cells: must be 0
> -
> -Required properties for child node of PCIe and USB3 qmp phys:
> - - clocks: a list of phandles and clock-specifier pairs,
> - one for each entry in clock-names.
> - - clock-names: Must contain following:
> - "pipe<lane-number>" for pipe clock specific to each lane.
> - - clock-output-names: Name of the PHY clock that will be the parent for
> - the above pipe clock.
> - For "qcom,ipq8074-qmp-pcie-phy":
> - - "pcie20_phy0_pipe_clk" Pipe Clock parent
> - (or)
> - "pcie20_phy1_pipe_clk"
> - - #clock-cells: must be 0
> - - Phy pll outputs pipe clocks for pipe based PHYs. These clocks are then
> - gate-controlled by the gcc.
> -
> -Required properties for child node of PHYs with lane reset, AKA:
> - "qcom,msm8996-qmp-pcie-phy"
> - - resets: a list of phandles and reset controller specifier pairs,
> - one for each entry in reset-names.
> - - reset-names: Must contain following:
> - "lane<lane-number>" for reset specific to each lane.
> -
> -Example:
> - phy@...00 {
> - compatible = "qcom,msm8996-qmp-pcie-phy";
> - reg = <0x34000 0x488>;
> - #address-cells = <1>;
> - #size-cells = <1>;
> - ranges;
> -
> - clocks = <&gcc GCC_PCIE_PHY_AUX_CLK>,
> - <&gcc GCC_PCIE_PHY_CFG_AHB_CLK>,
> - <&gcc GCC_PCIE_CLKREF_CLK>;
> - clock-names = "aux", "cfg_ahb", "ref";
> -
> - 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>;
> - reset-names = "phy", "common", "cfg";
> -
> - pciephy_0: lane@...00 {
> - reg = <0x35000 0x130>,
> - <0x35200 0x200>,
> - <0x35400 0x1dc>;
> - #clock-cells = <0>;
> - #phy-cells = <0>;
> -
> - clocks = <&gcc GCC_PCIE_0_PIPE_CLK>;
> - clock-names = "pipe0";
> - clock-output-names = "pcie_0_pipe_clk_src";
> - resets = <&gcc GCC_PCIE_0_PHY_BCR>;
> - reset-names = "lane0";
> - };
> -
> - pciephy_1: lane@...00 {
> - ...
> - ...
> - };
> -
> - phy@...b000 {
> - compatible = "qcom,sdm845-qmp-usb3-uni-phy";
> - reg = <0x88eb000 0x18c>;
> - #address-cells = <1>;
> - #size-cells = <1>;
> - ranges;
> -
> - clocks = <&gcc GCC_USB3_SEC_PHY_AUX_CLK>,
> - <&gcc GCC_USB_PHY_CFG_AHB2PHY_CLK>,
> - <&gcc GCC_USB3_SEC_CLKREF_CLK>,
> - <&gcc GCC_USB3_SEC_PHY_COM_AUX_CLK>;
> - clock-names = "aux", "cfg_ahb", "ref", "com_aux";
> -
> - resets = <&gcc GCC_USB3PHY_PHY_SEC_BCR>,
> - <&gcc GCC_USB3_PHY_SEC_BCR>;
> - reset-names = "phy", "common";
> -
> - lane@...b200 {
> - reg = <0x88eb200 0x128>,
> - <0x88eb400 0x1fc>,
> - <0x88eb800 0x218>,
> - <0x88eb600 0x70>;
> - #clock-cells = <0>;
> - #phy-cells = <0>;
> - clocks = <&gcc GCC_USB3_SEC_PHY_PIPE_CLK>;
> - clock-names = "pipe0";
> - clock-output-names = "usb3_uni_phy_pipe_clk_src";
> - };
> - };
> -
> - phy@...7000 {
> - compatible = "qcom,sdm845-qmp-ufs-phy";
> - reg = <0x1d87000 0x18c>;
> - #address-cells = <1>;
> - #size-cells = <1>;
> - ranges;
> - clock-names = "ref",
> - "ref_aux";
> - clocks = <&gcc GCC_UFS_MEM_CLKREF_CLK>,
> - <&gcc GCC_UFS_PHY_PHY_AUX_CLK>;
> -
> - lanes@...7400 {
> - reg = <0x1d87400 0x108>,
> - <0x1d87600 0x1e0>,
> - <0x1d87c00 0x1dc>,
> - <0x1d87800 0x108>,
> - <0x1d87a00 0x1e0>;
> - #phy-cells = <0>;
> - };
> - };
> --
> QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
> of Code Aurora Forum, hosted by The Linux Foundation
>
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