Hello Florian, > El 16 jun 2020, a las 19:17, Florian Fainelli <f.fainelli@xxxxxxxxx> escribió: > > > > On 6/16/2020 1:34 AM, Álvaro Fernández Rojas wrote: >> Document BCM63xx USBH PHY bindings. >> >> Signed-off-by: Álvaro Fernández Rojas <noltari@xxxxxxxxx> >> --- >> .../bindings/phy/brcm,bcm63xx-usbh-phy.yaml | 72 +++++++++++++++++++ >> 1 file changed, 72 insertions(+) >> create mode 100644 Documentation/devicetree/bindings/phy/brcm,bcm63xx-usbh-phy.yaml >> >> diff --git a/Documentation/devicetree/bindings/phy/brcm,bcm63xx-usbh-phy.yaml b/Documentation/devicetree/bindings/phy/brcm,bcm63xx-usbh-phy.yaml >> new file mode 100644 >> index 000000000000..3e7c97799b91 >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/phy/brcm,bcm63xx-usbh-phy.yaml >> @@ -0,0 +1,72 @@ >> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) >> +%YAML 1.2 >> +--- >> +$id: "http://devicetree.org/schemas/phy/brcm,bcm63xx-usbh-phy.yaml#"; >> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"; >> + >> +title: BCM63xx USBH PHY >> + >> +maintainers: >> + - Álvaro Fernández Rojas <noltari@xxxxxxxxx> >> + >> +properties: >> + compatible: >> + enum: >> + - brcm,bcm6318-usbh-phy >> + - brcm,bcm6328-usbh-phy >> + - brcm,bcm6358-usbh-phy >> + - brcm,bcm6362-usbh-phy >> + - brcm,bcm6368-usbh-phy >> + - brcm,bcm63268-usbh-phy >> + >> + reg: >> + maxItems: 1 >> + >> + clocks: >> + maxItems: 2 >> + >> + clock-names: >> + items: >> + - const: usbh >> + - const: usb_ref >> + >> + resets: >> + maxItems: 1 >> + >> + "#phy-cells": >> + const: 0 > > On 6328, the same register space allows the controlling of the USB PHY > in either host or device mode, so I believe you would need to add a > #phy-cells = 1 in order to distinguish the consumer (host versus device) > if we get to the point where drivers/usb/gadget/udc/bcm63xx_udc.c > becomes DT aware. I’m not really sure about how I should do this because there’s no definition for device phy mode in dt-bindings/phy/phy.h: https://github.com/torvalds/linux/blob/master/include/dt-bindings/phy/phy.h#L13 Which value should I use for device mode and which one for host? Should I support both modes at the same time or are they exclusive? > > Other than that, this looks good to me! > -- > Florian Best regards, Álvaro.
