diff mbox series

[V4,2/6] dt-bindings: usb: ci-hdrc-usb2: convert to DT schema format

Message ID 20230317123708.337286-3-peng.fan@oss.nxp.com (mailing list archive)
State Superseded
Headers show
Series dt-bindings: usb: covert ci-hdrc-usb2/usbmisc-imx to yaml | expand

Commit Message

Peng Fan (OSS) March 17, 2023, 12:37 p.m. UTC
From: Peng Fan <peng.fan@nxp.com>

Convert the binding to DT schema format. To fix the dtbs_check
error, some properties were also added, such as nvidia,phy, reset-names
ulpi; missing compatibles are added.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 .../devicetree/bindings/usb/ci-hdrc-usb2.txt  | 159 -------
 .../devicetree/bindings/usb/ci-hdrc-usb2.yaml | 412 ++++++++++++++++++
 2 files changed, 412 insertions(+), 159 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt
 create mode 100644 Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml

Comments

Rob Herring (Arm) March 17, 2023, 2:55 p.m. UTC | #1
On Fri, 17 Mar 2023 20:37:04 +0800, Peng Fan (OSS) wrote:
> From: Peng Fan <peng.fan@nxp.com>
> 
> Convert the binding to DT schema format. To fix the dtbs_check
> error, some properties were also added, such as nvidia,phy, reset-names
> ulpi; missing compatibles are added.
> 
> Signed-off-by: Peng Fan <peng.fan@nxp.com>
> ---
>  .../devicetree/bindings/usb/ci-hdrc-usb2.txt  | 159 -------
>  .../devicetree/bindings/usb/ci-hdrc-usb2.yaml | 412 ++++++++++++++++++
>  2 files changed, 412 insertions(+), 159 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt
>  create mode 100644 Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml
> 

My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
on your patch (DT_CHECKER_FLAGS is new in v5.13):

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml: properties:pinctrl-names:items: {'enum': ['default', 'host', 'device', 'idle', 'active']} is not of type 'array'
	from schema $id: http://devicetree.org/meta-schemas/string-array.yaml#

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20230317123708.337286-3-peng.fan@oss.nxp.com

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt
deleted file mode 100644
index 72ceea575d58..000000000000
--- a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt
+++ /dev/null
@@ -1,159 +0,0 @@ 
-* USB2 ChipIdea USB controller for ci13xxx
-
-Required properties:
-- compatible: should be one of:
-	"fsl,imx23-usb"
-	"fsl,imx27-usb"
-	"fsl,imx28-usb"
-	"fsl,imx6q-usb"
-	"fsl,imx6sl-usb"
-	"fsl,imx6sx-usb"
-	"fsl,imx6ul-usb"
-	"fsl,imx7d-usb"
-	"fsl,imx7ulp-usb"
-	"fsl,imx8mm-usb"
-	"lsi,zevio-usb"
-	"qcom,ci-hdrc"
-	"chipidea,usb2"
-	"xlnx,zynq-usb-2.20a"
-	"nvidia,tegra20-udc"
-	"nvidia,tegra30-udc"
-	"nvidia,tegra114-udc"
-	"nvidia,tegra124-udc"
-- reg: base address and length of the registers
-- interrupts: interrupt for the USB controller
-
-Recommended properies:
-- phy_type: the type of the phy connected to the core. Should be one
-  of "utmi", "utmi_wide", "ulpi", "serial" or "hsic". Without this
-  property the PORTSC register won't be touched.
-- dr_mode: One of "host", "peripheral" or "otg". Defaults to "otg"
-
-Deprecated properties:
-- usb-phy:      phandle for the PHY device. Use "phys" instead.
-- fsl,usbphy: phandle of usb phy that connects to the port. Use "phys" instead.
-
-Optional properties:
-- clocks: reference to the USB clock
-- phys: reference to the USB PHY
-- phy-names: should be "usb-phy"
-- vbus-supply: reference to the VBUS regulator
-- maximum-speed: limit the maximum connection speed to "full-speed".
-- tpl-support: TPL (Targeted Peripheral List) feature for targeted hosts
-- itc-setting: interrupt threshold control register control, the setting
-  should be aligned with ITC bits at register USBCMD.
-- ahb-burst-config: it is vendor dependent, the required value should be
-  aligned with AHBBRST at SBUSCFG, the range is from 0x0 to 0x7. This
-  property is used to change AHB burst configuration, check the chipidea
-  spec for meaning of each value. If this property is not existed, it
-  will use the reset value.
-- tx-burst-size-dword: it is vendor dependent, the tx burst size in dword
-  (4 bytes), This register represents the maximum length of a the burst
-  in 32-bit words while moving data from system memory to the USB
-  bus, the value of this property will only take effect if property
-  "ahb-burst-config" is set to 0, if this property is missing the reset
-  default of the hardware implementation will be used.
-- rx-burst-size-dword: it is vendor dependent, the rx burst size in dword
-  (4 bytes), This register represents the maximum length of a the burst
-  in 32-bit words while moving data from the USB bus to system memory,
-  the value of this property will only take effect if property
-  "ahb-burst-config" is set to 0, if this property is missing the reset
-  default of the hardware implementation will be used.
-- extcon: phandles to external connector devices. First phandle should point to
-  external connector, which provide "USB" cable events, the second should point
-  to external connector device, which provide "USB-HOST" cable events. If one
-  of the external connector devices is not required, empty <0> phandle should
-  be specified.
-- phy-clkgate-delay-us: the delay time (us) between putting the PHY into
-  low power mode and gating the PHY clock.
-- non-zero-ttctrl-ttha: after setting this property, the value of register
-  ttctrl.ttha will be 0x7f; if not, the value will be 0x0, this is the default
-  value. It needs to be very carefully for setting this property, it is
-  recommended that consult with your IC engineer before setting this value.
-  On the most of chipidea platforms, the "usage_tt" flag at RTL is 0, so this
-  property only affects siTD.
-  If this property is not set, the max packet size is 1023 bytes, and if
-  the total of packet size for pervious transactions are more than 256 bytes,
-  it can't accept any transactions within this frame. The use case is single
-  transaction, but higher frame rate.
-  If this property is set, the max packet size is 188 bytes, it can handle
-  more transactions than above case, it can accept transactions until it
-  considers the left room size within frame is less than 188 bytes, software
-  needs to make sure it does not send more than 90%
-  maximum_periodic_data_per_frame. The use case is multiple transactions, but
-  less frame rate.
-- mux-controls: The mux control for toggling host/device output of this
-  controller. It's expected that a mux state of 0 indicates device mode and a
-  mux state of 1 indicates host mode.
-- mux-control-names: Shall be "usb_switch" if mux-controls is specified.
-- pinctrl-names: Names for optional pin modes in "default", "host", "device".
-  In case of HSIC-mode, "idle" and "active" pin modes are mandatory. In this
-  case, the "idle" state needs to pull down the data and strobe pin
-  and the "active" state needs to pull up the strobe pin.
-- pinctrl-n: alternate pin modes
-
-i.mx specific properties
-- fsl,usbmisc: phandler of non-core register device, with one
-  argument that indicate usb controller index
-- disable-over-current: disable over current detect
-- over-current-active-low: over current signal polarity is active low.
-- over-current-active-high: over current signal polarity is active high.
-  It's recommended to specify the over current polarity.
-- power-active-high: power signal polarity is active high
-- external-vbus-divider: enables off-chip resistor divider for Vbus
-- samsung,picophy-pre-emp-curr-control: HS Transmitter Pre-Emphasis Current
-  Control. This signal controls the amount of current sourced to the
-  USB_OTG*_DP and USB_OTG*_DN pins after a J-to-K or K-to-J transition.
-  The range is from 0x0 to 0x3, the default value is 0x1.
-  Details can refer to TXPREEMPAMPTUNE0 bits of USBNC_n_PHY_CFG1.
-- samsung,picophy-dc-vol-level-adjust: HS DC Voltage Level Adjustment.
-  Adjust the high-speed transmitter DC level voltage.
-  The range is from 0x0 to 0xf, the default value is 0x3.
-  Details can refer to TXVREFTUNE0 bits of USBNC_n_PHY_CFG1.
-
-Example:
-
-	usb@f7ed0000 {
-		compatible = "chipidea,usb2";
-		reg = <0xf7ed0000 0x10000>;
-		interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
-		clocks = <&chip CLKID_USB0>;
-		phys = <&usb_phy0>;
-		phy-names = "usb-phy";
-		vbus-supply = <&reg_usb0_vbus>;
-		itc-setting = <0x4>; /* 4 micro-frames */
-		 /* Incremental burst of unspecified length */
-		ahb-burst-config = <0x0>;
-		tx-burst-size-dword = <0x10>; /* 64 bytes */
-		rx-burst-size-dword = <0x10>;
-		extcon = <0>, <&usb_id>;
-		phy-clkgate-delay-us = <400>;
-		mux-controls = <&usb_switch>;
-		mux-control-names = "usb_switch";
-	};
-
-Example for HSIC:
-
-	usb@2184400 {
-		compatible = "fsl,imx6q-usb", "fsl,imx27-usb";
-		reg = <0x02184400 0x200>;
-		interrupts = <0 41 IRQ_TYPE_LEVEL_HIGH>;
-		clocks = <&clks IMX6QDL_CLK_USBOH3>;
-		fsl,usbphy = <&usbphynop1>;
-		fsl,usbmisc = <&usbmisc 2>;
-		phy_type = "hsic";
-		dr_mode = "host";
-		ahb-burst-config = <0x0>;
-		tx-burst-size-dword = <0x10>;
-		rx-burst-size-dword = <0x10>;
-		pinctrl-names = "idle", "active";
-		pinctrl-0 = <&pinctrl_usbh2_idle>;
-		pinctrl-1 = <&pinctrl_usbh2_active>;
-		#address-cells = <1>;
-		#size-cells = <0>;
-
-		usbnet: ethernet@1 {
-			compatible = "usb424,9730";
-			reg = <1>;
-		};
-	};
diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml
new file mode 100644
index 000000000000..1cf747311ea9
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml
@@ -0,0 +1,412 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/ci-hdrc-usb2.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: USB2 ChipIdea USB controller
+
+maintainers:
+  - Xu Yang <xu.yang_2@nxp.com>
+  - Peng Fan <peng.fan@nxp.com>
+
+properties:
+  compatible:
+    oneOf:
+      - enum:
+          - chipidea,usb2
+          - lsi,zevio-usb
+          - nvidia,tegra20-udc
+          - nvidia,tegra30-udc
+          - nvidia,tegra114-udc
+          - nvidia,tegra124-udc
+          - qcom,ci-hdrc
+      - items:
+          - enum:
+              - fsl,imx23-usb
+              - fsl,imx25-usb
+              - fsl,imx28-usb
+              - fsl,imx50-usb
+              - fsl,imx51-usb
+              - fsl,imx53-usb
+              - fsl,imx6q-usb
+              - fsl,imx6sl-usb
+              - fsl,imx6sx-usb
+              - fsl,imx6ul-usb
+              - fsl,imx7d-usb
+              - fsl,vf610-usb
+          - const: fsl,imx27-usb
+      - items:
+          - const: fsl,imx8dxl-usb
+          - const: fsl,imx7ulp-usb
+          - const: fsl,imx6ul-usb
+      - items:
+          - enum:
+              - fsl,imx8mm-usb
+              - fsl,imx8mn-usb
+          - const: fsl,imx7d-usb
+          - const: fsl,imx27-usb
+      - items:
+          - enum:
+              - fsl,imx6sll-usb
+              - fsl,imx7ulp-usb
+          - const: fsl,imx6ul-usb
+          - const: fsl,imx27-usb
+      - items:
+          - const: xlnx,zynq-usb-2.20a
+          - const: chipidea,usb2
+
+  reg:
+    minItems: 1
+    maxItems: 2
+
+  interrupts:
+    minItems: 1
+    maxItems: 2
+
+  clocks:
+    minItems: 1
+    maxItems: 2
+
+  clock-names:
+    minItems: 1
+    maxItems: 2
+
+  dr_mode: true
+
+  power-domains:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+  reset-names:
+    maxItems: 1
+
+  "#reset-cells":
+    const: 1
+
+  phy_type: true
+
+  itc-setting:
+    description:
+      interrupt threshold control register control, the setting should be
+      aligned with ITC bits at register USBCMD.
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+  ahb-burst-config:
+    description:
+      it is vendor dependent, the required value should be aligned with
+      AHBBRST at SBUSCFG, the range is from 0x0 to 0x7. This property is
+      used to change AHB burst configuration, check the chipidea spec for
+      meaning of each value. If this property is not existed, it will use
+      the reset value.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 0x0
+    maximum: 0x7
+
+  tx-burst-size-dword:
+    description:
+      it is vendor dependent, the tx burst size in dword (4 bytes), This
+      register represents the maximum length of a the burst in 32-bit
+      words while moving data from system memory to the USB bus, the value
+      of this property will only take effect if property "ahb-burst-config"
+      is set to 0, if this property is missing the reset default of the
+      hardware implementation will be used.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 0x0
+    maximum: 0x20
+
+  rx-burst-size-dword:
+    description:
+      it is vendor dependent, the rx burst size in dword (4 bytes), This
+      register represents the maximum length of a the burst in 32-bit words
+      while moving data from the USB bus to system memory, the value of
+      this property will only take effect if property "ahb-burst-config"
+      is set to 0, if this property is missing the reset default of the
+      hardware implementation will be used.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 0x0
+    maximum: 0x20
+
+  extcon:
+    description: |
+      Phandles to external connector devices. First phandle should point
+      to external connector, which provide "USB" cable events, the second
+      should point to external connector device, which provide "USB-HOST"
+      cable events. If one of the external connector devices is not
+      required, empty <0> phandle should be specified.
+
+  phy-clkgate-delay-us:
+    description: |
+      The delay time (us) between putting the PHY into low power mode and
+      gating the PHY clock.
+
+  non-zero-ttctrl-ttha:
+    description: |
+      After setting this property, the value of register ttctrl.ttha
+      will be 0x7f; if not, the value will be 0x0, this is the default
+      value. It needs to be very carefully for setting this property, it
+      is recommended that consult with your IC engineer before setting
+      this value.  On the most of chipidea platforms, the "usage_tt" flag
+      at RTL is 0, so this property only affects siTD.
+
+      If this property is not set, the max packet size is 1023 bytes, and
+      if the total of packet size for pervious transactions are more than
+      256 bytes, it can't accept any transactions within this frame. The
+      use case is single transaction, but higher frame rate.
+
+      If this property is set, the max packet size is 188 bytes, it can
+      handle more transactions than above case, it can accept transactions
+      until it considers the left room size within frame is less than 188
+      bytes, software needs to make sure it does not send more than 90%
+      maximum_periodic_data_per_frame. The use case is multiple
+      transactions, but less frame rate.
+
+  mux-controls:
+    description: |
+      The mux control for toggling host/device output of this controller.
+      It's expected that a mux state of 0 indicates device mode and a mux
+      state of 1 indicates host mode.
+    maxItems: 1
+
+  mux-control-names:
+    const: usb_switch
+
+  pinctrl-names:
+    description: |
+      Names for optional pin modes in "default", "host", "device".
+      In case of HSIC-mode, "idle" and "active" pin modes are mandatory.
+      In this case, the "idle" state needs to pull down the data and
+      strobe pin and the "active" state needs to pull up the strobe pin.
+    items:
+      enum: [ default, host, device, idle, active ]
+
+  pinctrl-0:
+    maxItems: 1
+
+  pinctrl-1:
+    maxItems: 1
+
+  phys:
+    maxItems: 1
+
+  phy-names:
+    const: usb-phy
+
+  vbus-supply:
+    description: reference to the VBUS regulator.
+
+  fsl,usbmisc:
+    description:
+      Phandler of non-core register device, with one argument that
+      indicate usb controller index
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    items:
+      - items:
+          - description: phandle to usbmisc node
+          - description: index of usb controller
+
+  fsl,anatop:
+    description: phandle for the anatop node.
+    $ref: /schemas/types.yaml#/definitions/phandle
+
+  disable-over-current:
+    type: boolean
+    description: disable over current detect
+
+  over-current-active-low:
+    type: boolean
+    description: over current signal polarity is active low
+
+  over-current-active-high:
+    type: boolean
+    description: |
+      Over current signal polarity is active high. It's recommended to
+      specify the over current polarity.
+
+  power-active-high:
+    type: boolean
+    description: power signal polarity is active high
+
+  external-vbus-divider:
+    type: boolean
+    description: enables off-chip resistor divider for Vbus
+
+  samsung,picophy-pre-emp-curr-control:
+    description: |
+      HS Transmitter Pre-Emphasis Current Control. This signal controls
+      the amount of current sourced to the USB_OTG*_DP and USB_OTG*_DN
+      pins after a J-to-K or K-to-J transition. The range is from 0x0 to
+      0x3, the default value is 0x1. Details can refer to TXPREEMPAMPTUNE0
+      bits of USBNC_n_PHY_CFG1.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 0x0
+    maximum: 0x3
+
+  samsung,picophy-dc-vol-level-adjust:
+    description: |
+      HS DC Voltage Level Adjustment. Adjust the high-speed transmitter DC
+      level voltage. The range is from 0x0 to 0xf, the default value is
+      0x3. Details can refer to TXVREFTUNE0 bits of USBNC_n_PHY_CFG1.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 0x0
+    maximum: 0xf
+
+  usb-phy:
+    description: phandle for the PHY device. Use "phys" instead.
+    $ref: /schemas/types.yaml#/definitions/phandle
+    deprecated: true
+
+  fsl,usbphy:
+    description: phandle of usb phy that connects to the port. Use "phys" instead.
+    $ref: /schemas/types.yaml#/definitions/phandle
+    deprecated: true
+
+  nvidia,phy:
+    description: phandle of usb phy that connects to the port. Use "phys" instead.
+    $ref: /schemas/types.yaml#/definitions/phandle
+    deprecated: true
+
+  port:
+    description:
+      Any connector to the data bus of this controller should be modelled
+      using the OF graph bindings specified, if the "usb-role-switch"
+      property is used.
+    $ref: /schemas/graph.yaml#/properties/port
+
+  reset-gpios:
+    maxItems: 1
+
+  ulpi:
+    type: object
+    properties:
+      phy:
+        description: The phy child node for Qcom chips.
+        type: object
+        $ref: /schemas/phy/qcom,usb-hs-phy.yaml
+
+dependencies:
+  port: [ usb-role-switch ]
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+allOf:
+  - $ref: usb-hcd.yaml#
+  - $ref: usb-drd.yaml#
+  - if:
+      properties:
+        mux-controls:
+          true
+    then:
+      properties:
+        mux-control-names:
+          const: usb_switch
+  - if:
+      properties:
+        phy_type:
+          const: hsic
+      required:
+        - phy_type
+    then:
+      properties:
+        pinctrl-names:
+          items:
+            - const: idle
+            - const: active
+    else:
+      properties:
+        pinctrl-names:
+          minItems: 1
+          maxItems: 2
+          oneOf:
+            - items:
+                - const: default
+                - enum:
+                    - host
+                    - device
+            - items:
+                - const: default
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - chipidea,usb2
+              - lsi,zevio-usb
+              - nvidia,tegra20-udc
+              - nvidia,tegra30-udc
+              - nvidia,tegra114-udc
+              - nvidia,tegra124-udc
+              - qcom,ci-hdrc
+              - xlnx,zynq-usb-2.20a
+    then:
+      properties:
+        fsl,usbmisc: false
+        disable-over-current: false
+        over-current-active-low: false
+        over-current-active-high: false
+        power-active-high: false
+        external-vbus-divider: false
+        samsung,picophy-pre-emp-curr-control: false
+        samsung,picophy-dc-vol-level-adjust: false
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/berlin2.h>
+
+    usb@f7ed0000 {
+        compatible = "chipidea,usb2";
+        reg = <0xf7ed0000 0x10000>;
+        interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&chip CLKID_USB0>;
+        phys = <&usb_phy0>;
+        phy-names = "usb-phy";
+        vbus-supply = <&reg_usb0_vbus>;
+        itc-setting = <0x4>; /* 4 micro-frames */
+         /* Incremental burst of unspecified length */
+        ahb-burst-config = <0x0>;
+        tx-burst-size-dword = <0x10>; /* 64 bytes */
+        rx-burst-size-dword = <0x10>;
+        extcon = <0>, <&usb_id>;
+        phy-clkgate-delay-us = <400>;
+        mux-controls = <&usb_switch>;
+        mux-control-names = "usb_switch";
+    };
+
+  # Example for HSIC:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/imx6qdl-clock.h>
+
+    usb@2184400 {
+        compatible = "fsl,imx6q-usb", "fsl,imx27-usb";
+        reg = <0x02184400 0x200>;
+        interrupts = <0 41 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&clks IMX6QDL_CLK_USBOH3>;
+        fsl,usbphy = <&usbphynop1>;
+        fsl,usbmisc = <&usbmisc 2>;
+        phy_type = "hsic";
+        dr_mode = "host";
+        ahb-burst-config = <0x0>;
+        tx-burst-size-dword = <0x10>;
+        rx-burst-size-dword = <0x10>;
+        pinctrl-names = "idle", "active";
+        pinctrl-0 = <&pinctrl_usbh2_idle>;
+        pinctrl-1 = <&pinctrl_usbh2_active>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        ethernet@1 {
+            compatible = "usb424,9730";
+            reg = <1>;
+        };
+    };
+
+...