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Message-Id: <20240228113004.918205-4-xu.yang_2@nxp.com>
Date: Wed, 28 Feb 2024 19:29:57 +0800
From: Xu Yang <xu.yang_2@....com>
To: gregkh@...uxfoundation.org,
robh+dt@...nel.org,
krzysztof.kozlowski+dt@...aro.org,
shawnguo@...nel.org,
conor+dt@...nel.org
Cc: s.hauer@...gutronix.de,
kernel@...gutronix.de,
festevam@...il.com,
linux-imx@....com,
peter.chen@...nel.org,
xu.yang_2@....com,
jun.li@....com,
linux-usb@...r.kernel.org,
devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v7 04/11] dt-bindings: usb: ci-hdrc-usb2-imx: move imx parts to dedicated schema
As more and more NXP i.MX chips come out, it becomes harder to maintain
ci-hdrc-usb2.yaml if more stuffs like property restrictions are added to
this file. This will separate i.MX parts out of ci-hdrc-usb2.yaml and add
a new schema for NXP ChipIdea USB2 Controller, also add a common schema.
1. Copy common ci-hdrc-usb2.yaml properties to a new shared
ci-hdrc-usb2-common.yaml schema.
2. Move fsl,* compatible devices and imx spefific properties
to dedicated binding file ci-hdrc-usb2-imx.yaml.
Signed-off-by: Xu Yang <xu.yang_2@....com>
---
Changes in v6:
- new patch
Changes in v7:
- not remove ci-hdrc-usb2.yaml and move imx parts to ci-hdrc-usb2-imx.yaml
---
.../bindings/usb/ci-hdrc-usb2-common.yaml | 197 ++++++++++++++++++
.../bindings/usb/ci-hdrc-usb2-imx.yaml | 197 ++++++++++++++++++
.../devicetree/bindings/usb/ci-hdrc-usb2.yaml | 186 -----------------
3 files changed, 394 insertions(+), 186 deletions(-)
create mode 100644 Documentation/devicetree/bindings/usb/ci-hdrc-usb2-common.yaml
create mode 100644 Documentation/devicetree/bindings/usb/ci-hdrc-usb2-imx.yaml
diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2-common.yaml b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2-common.yaml
new file mode 100644
index 000000000000..9f8f2f343dd3
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2-common.yaml
@@ -0,0 +1,197 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/ci-hdrc-usb2-common.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: USB2 ChipIdea USB controller Common Properties
+
+maintainers:
+ - Xu Yang <xu.yang_2@....com>
+
+properties:
+ reg:
+ minItems: 1
+ maxItems: 2
+
+ interrupts:
+ minItems: 1
+ maxItems: 2
+
+ clocks:
+ minItems: 1
+ maxItems: 3
+
+ clock-names:
+ minItems: 1
+ maxItems: 3
+
+ 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.
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ minItems: 1
+ items:
+ - description: vbus extcon
+ - description: id extcon
+
+ 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 previous 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.
+ type: boolean
+
+ 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.
+ oneOf:
+ - items:
+ - const: idle
+ - const: active
+ - items:
+ - const: default
+ - enum:
+ - host
+ - device
+ - items:
+ - const: default
+
+ pinctrl-0:
+ maxItems: 1
+
+ pinctrl-1:
+ maxItems: 1
+
+ phys:
+ maxItems: 1
+
+ phy-names:
+ const: usb-phy
+
+ vbus-supply:
+ description: reference to the VBUS regulator.
+
+ usb-phy:
+ description: phandle for the PHY device. Use "phys" instead.
+ maxItems: 1
+ 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
+
+dependencies:
+ port: [ usb-role-switch ]
+ mux-controls: [ mux-control-names ]
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+allOf:
+ - $ref: usb-hcd.yaml#
+ - $ref: usb-drd.yaml#
+
+additionalProperties: true
\ No newline at end of file
diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2-imx.yaml b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2-imx.yaml
new file mode 100644
index 000000000000..50494ce06d07
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2-imx.yaml
@@ -0,0 +1,197 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/ci-hdrc-usb2-imx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP USB2 ChipIdea USB controller
+
+maintainers:
+ - Xu Yang <xu.yang_2@....com>
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - fsl,imx27-usb
+ - items:
+ - enum:
+ - fsl,imx23-usb
+ - fsl,imx25-usb
+ - fsl,imx28-usb
+ - fsl,imx35-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:
+ - enum:
+ - fsl,imx8dxl-usb
+ - fsl,imx8ulp-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
+
+ clocks:
+ minItems: 1
+ maxItems: 3
+
+ clock-names:
+ minItems: 1
+ maxItems: 3
+
+ 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
+
+ fsl,picophy-rise-fall-time-adjust:
+ description:
+ HS Transmitter Rise/Fall Time Adjustment. Adjust the rise/fall times
+ of the high-speed transmitter waveform. It has no unit. The rise/fall
+ time will be increased or decreased by a certain percentage relative
+ to design default time. (0:-10%; 1:design default; 2:+15%; 3:+20%)
+ Details can refer to TXRISETUNE0 bit of USBNC_n_PHY_CFG1.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 3
+ default: 1
+
+ fsl,usbphy:
+ description: phandle of usb phy that connects to the port. Use "phys" instead.
+ $ref: /schemas/types.yaml#/definitions/phandle
+ deprecated: true
+
+allOf:
+ - $ref: ci-hdrc-usb2-common.yaml#
+ - if:
+ properties:
+ phy_type:
+ const: hsic
+ required:
+ - phy_type
+ then:
+ properties:
+ pinctrl-names:
+ items:
+ - const: idle
+ - const: active
+
+required:
+ - compatible
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/imx7d-clock.h>
+
+ usb@...10000 {
+ compatible = "fsl,imx7d-usb", "fsl,imx27-usb";
+ reg = <0x30b10000 0x200>;
+ interrupts = <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clks IMX7D_USB_CTRL_CLK>;
+ fsl,usbphy = <&usbphynop1>;
+ fsl,usbmisc = <&usbmisc1 0>;
+ phy-clkgate-delay-us = <400>;
+ };
+
+ # Example for HSIC:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/imx6qdl-clock.h>
+
+ usb@...4400 {
+ 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>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml
index 3b56e0edb1c6..9b9b77ad945b 100644
--- a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml
+++ b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml
@@ -15,7 +15,6 @@ properties:
oneOf:
- enum:
- chipidea,usb2
- - fsl,imx27-usb
- lsi,zevio-usb
- nuvoton,npcm750-udc
- nvidia,tegra20-ehci
@@ -31,40 +30,6 @@ properties:
- nvidia,tegra124-ehci
- nvidia,tegra210-ehci
- const: nvidia,tegra30-ehci
- - items:
- - enum:
- - fsl,imx23-usb
- - fsl,imx25-usb
- - fsl,imx28-usb
- - fsl,imx35-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:
- - enum:
- - fsl,imx8dxl-usb
- - fsl,imx8ulp-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
@@ -243,84 +208,11 @@ properties:
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
-
- fsl,picophy-rise-fall-time-adjust:
- description:
- HS Transmitter Rise/Fall Time Adjustment. Adjust the rise/fall times
- of the high-speed transmitter waveform. It has no unit. The rise/fall
- time will be increased or decreased by a certain percentage relative
- to design default time. (0:-10%; 1:design default; 2:+15%; 3:+20%)
- Details can refer to TXRISETUNE0 bit of USBNC_n_PHY_CFG1.
- $ref: /schemas/types.yaml#/definitions/uint32
- minimum: 0
- maximum: 3
- default: 1
-
usb-phy:
description: phandle for the PHY device. Use "phys" instead.
maxItems: 1
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
@@ -362,55 +254,6 @@ required:
allOf:
- $ref: usb-hcd.yaml#
- $ref: usb-drd.yaml#
- - 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
- - nuvoton,npcm750-udc
- - 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
@@ -438,33 +281,4 @@ examples:
mux-control-names = "usb_switch";
};
- # Example for HSIC:
- - |
- #include <dt-bindings/interrupt-controller/arm-gic.h>
- #include <dt-bindings/clock/imx6qdl-clock.h>
-
- usb@...4400 {
- 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>;
- };
- };
-
...
--
2.34.1
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