[PATCH v5 03/11] dt-bindings: phy: convert phy-mtk-xsphy.txt to YAML schema

From: Chunfeng Yun
Date: Fri Dec 25 2020 - 02:55:02 EST

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Convert phy-mtk-xsphy.txt to YAML schema mediatek,xsphy.yaml

Signed-off-by: Chunfeng Yun <chunfeng.yun@xxxxxxxxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
---
v5: no changes

v4: add Reviewed-by Rob

v3:
1. remove type for property with standard unit suffix suggested by Rob
2. remove '|' for descritpion
3. fix yamllint warning

v2:
1. modify description and compatible definition suggested by Rob
---
.../bindings/phy/mediatek,xsphy.yaml | 199 ++++++++++++++++++
.../devicetree/bindings/phy/phy-mtk-xsphy.txt | 109 ----------
2 files changed, 199 insertions(+), 109 deletions(-)
create mode 100644 Documentation/devicetree/bindings/phy/mediatek,xsphy.yaml
delete mode 100644 Documentation/devicetree/bindings/phy/phy-mtk-xsphy.txt

diff --git a/Documentation/devicetree/bindings/phy/mediatek,xsphy.yaml b/Documentation/devicetree/bindings/phy/mediatek,xsphy.yaml
new file mode 100644
index 000000000000..598fd2b95c29
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/mediatek,xsphy.yaml
@@ -0,0 +1,199 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (c) 2020 MediaTek
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/mediatek,xsphy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek XS-PHY Controller Device Tree Bindings
+
+maintainers:
+ - Chunfeng Yun <chunfeng.yun@xxxxxxxxxxxx>
+
+description: |
+ The XS-PHY controller supports physical layer functionality for USB3.1
+ GEN2 controller on MediaTek SoCs.
+
+ Banks layout of xsphy
+ ----------------------------------
+ port offset bank
+ u2 port0 0x0000 MISC
+ 0x0100 FMREG
+ 0x0300 U2PHY_COM
+ u2 port1 0x1000 MISC
+ 0x1100 FMREG
+ 0x1300 U2PHY_COM
+ u2 port2 0x2000 MISC
+ ...
+ u31 common 0x3000 DIG_GLB
+ 0x3100 PHYA_GLB
+ u31 port0 0x3400 DIG_LN_TOP
+ 0x3500 DIG_LN_TX0
+ 0x3600 DIG_LN_RX0
+ 0x3700 DIG_LN_DAIF
+ 0x3800 PHYA_LN
+ u31 port1 0x3a00 DIG_LN_TOP
+ 0x3b00 DIG_LN_TX0
+ 0x3c00 DIG_LN_RX0
+ 0x3d00 DIG_LN_DAIF
+ 0x3e00 PHYA_LN
+ ...
+ DIG_GLB & PHYA_GLB are shared by U31 ports.
+
+properties:
+ $nodename:
+ pattern: "^xs-phy@[0-9a-f]+$"
+
+ compatible:
+ items:
+ - enum:
+ - mediatek,mt3611-xsphy
+ - mediatek,mt3612-xsphy
+ - const: mediatek,xsphy
+
+ reg:
+ description:
+ Register shared by multiple U3 ports, exclude port's private register,
+ if only U2 ports provided, shouldn't use the property.
+ maxItems: 1
+
+ "#address-cells":
+ enum: [1, 2]
+
+ "#size-cells":
+ enum: [1, 2]
+
+ ranges: true
+
+ mediatek,src-ref-clk-mhz:
+ description:
+ Frequency of reference clock for slew rate calibrate
+ default: 26
+
+ mediatek,src-coef:
+ description:
+ Coefficient for slew rate calibrate, depends on SoC process
+ $ref: /schemas/types.yaml#/definitions/uint32
+ default: 17
+
+# Required child node:
+patternProperties:
+ "^usb-phy@[0-9a-f]+$":
+ type: object
+ description:
+ A sub-node is required for each port the controller provides.
+ Address range information including the usual 'reg' property
+ is used inside these nodes to describe the controller's topology.
+
+ properties:
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Reference clock, (HS is 48Mhz, SS/P is 24~27Mhz)
+
+ clock-names:
+ items:
+ - const: ref
+
+ "#phy-cells":
+ const: 1
+ description: |
+ The cells contain the following arguments.
+
+ - description: The PHY type
+ enum:
+ - PHY_TYPE_USB2
+ - PHY_TYPE_USB3
+
+ # The following optional vendor properties are only for debug or HQA test
+ mediatek,eye-src:
+ description:
+ The value of slew rate calibrate (U2 phy)
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 1
+ maximum: 7
+
+ mediatek,eye-vrt:
+ description:
+ The selection of VRT reference voltage (U2 phy)
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 1
+ maximum: 7
+
+ mediatek,eye-term:
+ description:
+ The selection of HS_TX TERM reference voltage (U2 phy)
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 1
+ maximum: 7
+
+ mediatek,efuse-intr:
+ description:
+ The selection of Internal Resistor (U2/U3 phy)
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 1
+ maximum: 63
+
+ mediatek,efuse-tx-imp:
+ description:
+ The selection of TX Impedance (U3 phy)
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 1
+ maximum: 31
+
+ mediatek,efuse-rx-imp:
+ description:
+ The selection of RX Impedance (U3 phy)
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 1
+ maximum: 31
+
+ required:
+ - reg
+ - clocks
+ - clock-names
+ - "#phy-cells"
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - "#address-cells"
+ - "#size-cells"
+ - ranges
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/phy/phy.h>
+
+ u3phy: xs-phy@11c40000 {
+ compatible = "mediatek,mt3611-xsphy", "mediatek,xsphy";
+ reg = <0x11c43000 0x0200>;
+ mediatek,src-ref-clk-mhz = <26>;
+ mediatek,src-coef = <17>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ u2port0: usb-phy@11c40000 {
+ reg = <0x11c40000 0x0400>;
+ clocks = <&clk48m>;
+ clock-names = "ref";
+ mediatek,eye-src = <4>;
+ #phy-cells = <1>;
+ };
+
+ u3port0: usb-phy@11c43000 {
+ reg = <0x11c43400 0x0500>;
+ clocks = <&clk26m>;
+ clock-names = "ref";
+ mediatek,efuse-intr = <28>;
+ #phy-cells = <1>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/phy/phy-mtk-xsphy.txt b/Documentation/devicetree/bindings/phy/phy-mtk-xsphy.txt
deleted file mode 100644
index e7caefa0b9c2..000000000000
--- a/Documentation/devicetree/bindings/phy/phy-mtk-xsphy.txt
+++ /dev/null
@@ -1,109 +0,0 @@
-MediaTek XS-PHY binding
---------------------------
-
-The XS-PHY controller supports physical layer functionality for USB3.1
-GEN2 controller on MediaTek SoCs.
-
-Required properties (controller (parent) node):
- - compatible : should be "mediatek,<soc-model>-xsphy", "mediatek,xsphy",
- soc-model is the name of SoC, such as mt3611 etc;
- when using "mediatek,xsphy" compatible string, you need SoC specific
- ones in addition, one of:
- - "mediatek,mt3611-xsphy"
-
- - #address-cells, #size-cells : should use the same values as the root node
- - ranges: must be present
-
-Optional properties (controller (parent) node):
- - reg : offset and length of register shared by multiple U3 ports,
- exclude port's private register, if only U2 ports provided,
- shouldn't use the property.
- - mediatek,src-ref-clk-mhz : u32, frequency of reference clock for slew rate
- calibrate
- - mediatek,src-coef : u32, coefficient for slew rate calibrate, depends on
- SoC process
-
-Required nodes : a sub-node is required for each port the controller
- provides. Address range information including the usual
- 'reg' property is used inside these nodes to describe
- the controller's topology.
-
-Required properties (port (child) node):
-- reg : address and length of the register set for the port.
-- clocks : a list of phandle + clock-specifier pairs, one for each
- entry in clock-names
-- clock-names : must contain
- "ref": 48M reference clock for HighSpeed analog phy; and 26M
- reference clock for SuperSpeedPlus analog phy, sometimes is
- 24M, 25M or 27M, depended on platform.
-- #phy-cells : should be 1
- cell after port phandle is phy type from:
- - PHY_TYPE_USB2
- - PHY_TYPE_USB3
-
-The following optional properties are only for debug or HQA test
-Optional properties (PHY_TYPE_USB2 port (child) node):
-- mediatek,eye-src : u32, the value of slew rate calibrate
-- mediatek,eye-vrt : u32, the selection of VRT reference voltage
-- mediatek,eye-term : u32, the selection of HS_TX TERM reference voltage
-- mediatek,efuse-intr : u32, the selection of Internal Resistor
-
-Optional properties (PHY_TYPE_USB3 port (child) node):
-- mediatek,efuse-intr : u32, the selection of Internal Resistor
-- mediatek,efuse-tx-imp : u32, the selection of TX Impedance
-- mediatek,efuse-rx-imp : u32, the selection of RX Impedance
-
-Banks layout of xsphy
--------------------------------------------------------------
-port offset bank
-u2 port0 0x0000 MISC
- 0x0100 FMREG
- 0x0300 U2PHY_COM
-u2 port1 0x1000 MISC
- 0x1100 FMREG
- 0x1300 U2PHY_COM
-u2 port2 0x2000 MISC
- ...
-u31 common 0x3000 DIG_GLB
- 0x3100 PHYA_GLB
-u31 port0 0x3400 DIG_LN_TOP
- 0x3500 DIG_LN_TX0
- 0x3600 DIG_LN_RX0
- 0x3700 DIG_LN_DAIF
- 0x3800 PHYA_LN
-u31 port1 0x3a00 DIG_LN_TOP
- 0x3b00 DIG_LN_TX0
- 0x3c00 DIG_LN_RX0
- 0x3d00 DIG_LN_DAIF
- 0x3e00 PHYA_LN
- ...
-
-DIG_GLB & PHYA_GLB are shared by U31 ports.
-
-Example:
-
-u3phy: usb-phy@11c40000 {
- compatible = "mediatek,mt3611-xsphy", "mediatek,xsphy";
- reg = <0 0x11c43000 0 0x0200>;
- mediatek,src-ref-clk-mhz = <26>;
- mediatek,src-coef = <17>;
- #address-cells = <2>;
- #size-cells = <2>;
- ranges;
-
- u2port0: usb-phy@11c40000 {
- reg = <0 0x11c40000 0 0x0400>;
- clocks = <&clk48m>;
- clock-names = "ref";
- mediatek,eye-src = <4>;
- #phy-cells = <1>;
- };
-
- u3port0: usb-phy@11c43000 {
- reg = <0 0x11c43400 0 0x0500>;
- clocks = <&clk26m>;
- clock-names = "ref";
- mediatek,efuse-intr = <28>;
- #phy-cells = <1>;
- };
-};
--
2.18.0

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