On 10/29/20 4:40 PM, Rob Herring wrote:
On Thu, Oct 29, 2020 at 10:58:03AM +0100, Amelie Delaunay wrote:
Power operation mode may depends on hardware design, so, add the optional
property power-opmode for usb-c connector to select the power operation
mode capability.
Signed-off-by: Amelie Delaunay <amelie.delaunay@xxxxxx>
---
.../bindings/connector/usb-connector.yaml | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/Documentation/devicetree/bindings/connector/usb-connector.yaml b/Documentation/devicetree/bindings/connector/usb-connector.yaml
index 728f82db073d..200d19c60fd5 100644
--- a/Documentation/devicetree/bindings/connector/usb-connector.yaml
+++ b/Documentation/devicetree/bindings/connector/usb-connector.yaml
@@ -93,6 +93,24 @@ properties:
- device
- dual
+ power-opmode:
I've acked this version:
https://lore.kernel.org/r/20201020093627.256885-2-badhri@xxxxxxxxxx
frs is used for Fast Role Swap defined in USB PD spec.
I understand it allows to get the same information but I'm wondering why
the property name is limited to -frs- in this case. What about a
non-power delivery USB-C connector ?
Moreover, power-opmode property support is already merged in typec class:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/usb/typec/class.c?h=v5.10-rc1&id=12f3467b0d28369d3add7a0deb65fdac9b503c90
and stusb160x driver uses it :(
So, do I need to modify stusb160x driver (and bindings) to take into
account this USB PD specific property?
Regards,
Amelie
Please ack it if you are okay with it.
Rob
+ description: Determines the power operation mode that the Type C connector
+ will support and will advertise through CC pins when it has no power
+ delivery support.
+ - "default" corresponds to default USB voltage and current defined by the
+ USB 2.0 and USB 3.2 specifications, 5V 500mA for USB 2.0 ports and
+ 5V 900mA or 1500mA for USB 3.2 ports in single-lane or dual-lane
+ operation respectively.
+ - "1.5A" and "3.0A", 5V 1.5A and 5V 3.0A respectively, as defined in USB
+ Type-C Cable and Connector specification, when Power Delivery is not
+ supported.
+ allOf:
+ - $ref: /schemas/types.yaml#definitions/string
+ enum:
+ - default
+ - 1.5A
+ - 3.0A
+
# The following are optional properties for "usb-c-connector" with power
# delivery support.
source-pdos:
--
2.17.1
