Re: [PATCH v5 02/19] dt-bindings: usb: Convert generic USB properties to DT schemas
On Sat, 2020-12-05 at 18:24 +0300, Serge Semin wrote:
> The generic USB properties have been described in the legacy bindings
> text file: Documentation/devicetree/bindings/usb/generic.txt . Let's
> convert its content into the generic USB, USB HCD and USB DRD DT
> schemas. So the Generic USB schema will be applicable to all USB
> controllers, USB HCD - for the generic USB Host controllers and the USB
> DRD - for the USB Dual-role controllers.
>
> Note the USB DRD schema is supposed to work in conjunction with
> the USB peripheral/gadget and USB host controllers DT schemas.
>
> Signed-off-by: Serge Semin
> Reviewed-by: Rob Herring
>
> ---
>
> Changelog v2:
> - Discard '|' in all the new properties, since we don't need to preserve
> the text formatting.
> - Convert abbreviated form of the "maximum-speed" enum restriction into
> the multi-lined version of the list.
> - Drop quotes from around the string constants.
>
> Changelog v4:
> - Redistribute the properties between generic ones, USB HCD-specific and
> USB DRD-specific.
> - Discard the Rob'es Reviewed-by tag. Please review the patch one more time.
> ---
> .../devicetree/bindings/usb/generic.txt | 57 --
> .../devicetree/bindings/usb/usb-drd.yaml | 77 +++
> .../devicetree/bindings/usb/usb-hcd.yaml | 5 ++
> .../devicetree/bindings/usb/usb.yaml | 22 ++
> 4 files changed, 104 insertions(+), 57 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/usb/generic.txt
> create mode 100644 Documentation/devicetree/bindings/usb/usb-drd.yaml
>
> diff --git a/Documentation/devicetree/bindings/usb/generic.txt
> b/Documentation/devicetree/bindings/usb/generic.txt
> deleted file mode 100644
> index ba472e7aefc9..
> --- a/Documentation/devicetree/bindings/usb/generic.txt
> +++ /dev/null
> @@ -1,57 +0,0 @@
> -Generic USB Properties
> -
> -Optional properties:
> - - maximum-speed: tells USB controllers we want to work up to a certain
> - speed. Valid arguments are "super-speed-plus",
> - "super-speed", "high-speed", "full-speed" and
> - "low-speed". In case this isn't passed via DT, USB
> - controllers should default to their maximum HW
> - capability.
> - - dr_mode: tells Dual-Role USB controllers that we want to work on a
> - particular mode. Valid arguments are "host",
> - "peripheral" and "otg". In case this attribute isn't
> - passed via DT, USB DRD controllers should default to
> - OTG.
> - - phy_type: tells USB controllers that we want to configure the core to
> support
> - a UTMI+ PHY with an 8- or 16-bit interface if UTMI+ is
> - selected. Valid arguments are "utmi" and "utmi_wide".
> - In case this isn't passed via DT, USB controllers should
> - default to HW capability.
> - - otg-rev: tells usb driver the release number of the OTG and EH supplement
> - with which the device and its descriptors are compliant,
> - in binary-coded decimal (i.e. 2.0 is 0200H). This
> - property is used if any real OTG features(HNP/SRP/ADP)
> - is enabled, if ADP is required, otg-rev should be
> - 0x0200 or above.
> - - companion: phandle of a companion
> - - hnp-disable: tells OTG controllers we want to disable OTG HNP, normally
> HNP
> - is the basic function of real OTG except you want it
> - to be a srp-capable only B device.
> - - srp-disable: tells OTG controllers we want to disable OTG SRP, SRP is
> - optional for OTG device.
> - - adp-disable: tells OTG controllers we want to disable OTG ADP, ADP is
> - optional for OTG device.
> - - usb-role-switch: boolean, indicates that the device is capable of
> assigning
> - the USB data role (USB host or USB device) for a given
> - USB connector, such as Type-C, Type-B(micro).
> - see connector/usb-connector.yaml.
> - - role-switch-default-mode: indicating if usb-role-switch is enabled, the
> - device default operation mode of controller while usb
> - role is USB_ROLE_NONE. Valid arguments are "host" and
> - "peripheral". Defaults to "peripheral" if not
> - specified.
> -
> -
> -This is an attribute to a USB controller such as:
> -
> -dwc3@4a03 {
> - compatible = "synopsys,dwc3";
> - reg = <0x4a03 0xcfff>;
> - interrupts = <0 92 4>
> - usb-phy = <_phy>, <,phy>;
> - maximum-speed = "super-speed";
> - dr_mode = "otg";
> - phy_type = "utmi_wide";
> - otg-rev = <0x0200>;
> - adp-disable;
> -};
> diff --git
[PATCH v5 02/19] dt-bindings: usb: Convert generic USB properties to DT schemas
The generic USB properties have been described in the legacy bindings
text file: Documentation/devicetree/bindings/usb/generic.txt . Let's
convert its content into the generic USB, USB HCD and USB DRD DT
schemas. So the Generic USB schema will be applicable to all USB
controllers, USB HCD - for the generic USB Host controllers and the USB
DRD - for the USB Dual-role controllers.
Note the USB DRD schema is supposed to work in conjunction with
the USB peripheral/gadget and USB host controllers DT schemas.
Signed-off-by: Serge Semin
Reviewed-by: Rob Herring
---
Changelog v2:
- Discard '|' in all the new properties, since we don't need to preserve
the text formatting.
- Convert abbreviated form of the "maximum-speed" enum restriction into
the multi-lined version of the list.
- Drop quotes from around the string constants.
Changelog v4:
- Redistribute the properties between generic ones, USB HCD-specific and
USB DRD-specific.
- Discard the Rob'es Reviewed-by tag. Please review the patch one more time.
---
.../devicetree/bindings/usb/generic.txt | 57 --
.../devicetree/bindings/usb/usb-drd.yaml | 77 +++
.../devicetree/bindings/usb/usb-hcd.yaml | 5 ++
.../devicetree/bindings/usb/usb.yaml | 22 ++
4 files changed, 104 insertions(+), 57 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/usb/generic.txt
create mode 100644 Documentation/devicetree/bindings/usb/usb-drd.yaml
diff --git a/Documentation/devicetree/bindings/usb/generic.txt
b/Documentation/devicetree/bindings/usb/generic.txt
deleted file mode 100644
index ba472e7aefc9..
--- a/Documentation/devicetree/bindings/usb/generic.txt
+++ /dev/null
@@ -1,57 +0,0 @@
-Generic USB Properties
-
-Optional properties:
- - maximum-speed: tells USB controllers we want to work up to a certain
- speed. Valid arguments are "super-speed-plus",
- "super-speed", "high-speed", "full-speed" and
- "low-speed". In case this isn't passed via DT, USB
- controllers should default to their maximum HW
- capability.
- - dr_mode: tells Dual-Role USB controllers that we want to work on a
- particular mode. Valid arguments are "host",
- "peripheral" and "otg". In case this attribute isn't
- passed via DT, USB DRD controllers should default to
- OTG.
- - phy_type: tells USB controllers that we want to configure the core to
support
- a UTMI+ PHY with an 8- or 16-bit interface if UTMI+ is
- selected. Valid arguments are "utmi" and "utmi_wide".
- In case this isn't passed via DT, USB controllers should
- default to HW capability.
- - otg-rev: tells usb driver the release number of the OTG and EH supplement
- with which the device and its descriptors are compliant,
- in binary-coded decimal (i.e. 2.0 is 0200H). This
- property is used if any real OTG features(HNP/SRP/ADP)
- is enabled, if ADP is required, otg-rev should be
- 0x0200 or above.
- - companion: phandle of a companion
- - hnp-disable: tells OTG controllers we want to disable OTG HNP, normally HNP
- is the basic function of real OTG except you want it
- to be a srp-capable only B device.
- - srp-disable: tells OTG controllers we want to disable OTG SRP, SRP is
- optional for OTG device.
- - adp-disable: tells OTG controllers we want to disable OTG ADP, ADP is
- optional for OTG device.
- - usb-role-switch: boolean, indicates that the device is capable of assigning
- the USB data role (USB host or USB device) for a given
- USB connector, such as Type-C, Type-B(micro).
- see connector/usb-connector.yaml.
- - role-switch-default-mode: indicating if usb-role-switch is enabled, the
- device default operation mode of controller while usb
- role is USB_ROLE_NONE. Valid arguments are "host" and
- "peripheral". Defaults to "peripheral" if not
- specified.
-
-
-This is an attribute to a USB controller such as:
-
-dwc3@4a03 {
- compatible = "synopsys,dwc3";
- reg = <0x4a03 0xcfff>;
- interrupts = <0 92 4>
- usb-phy = <_phy>, <,phy>;
- maximum-speed = "super-speed";
- dr_mode = "otg";
- phy_type = "utmi_wide";
- otg-rev = <0x0200>;
- adp-disable;
-};
diff --git a/Documentation/devicetree/bindings/usb/usb-drd.yaml
b/Documentation/devicetree/bindings/usb/usb-drd.yaml
new file mode 100644
index ..f3a64c46dcd0
--- /dev/null
+++
