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dt-bindings: connector: Add properties to define time values

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This commit adds the following properties:
  * sink-wait-cap-time-ms
  * ps-source-off-time-ms
  * cc-debounce-time-ms

This is to enable setting of platform/board specific timer values as
these timers have a range of acceptable values.

Signed-off-by: Amit Sunil Dhamne <amitsd@google.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20241022-pd-dt-time-props-v1-1-fea96f51b302@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Amit Sunil Dhamne 2024-10-22 20:55:48 -07:00 committed by Greg Kroah-Hartman
parent f390525d27
commit eea54570f8
1 changed files with 34 additions and 1 deletions
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35
Documentation/devicetree/bindings/connector/usb-connector.yaml
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@ -253,6 +253,36 @@ properties:
additionalProperties: false
sink-wait-cap-time-ms:
description: Represents the max time in ms that USB Type-C port (in sink
role) should wait for the port partner (source role) to send source caps.
SinkWaitCap timer starts when port in sink role attaches to the source.
This timer will stop when sink receives PD source cap advertisement before
timeout in which case it'll move to capability negotiation stage. A
timeout leads to a hard reset message by the port.
minimum: 310
maximum: 620
default: 310
ps-source-off-time-ms:
description: Represents the max time in ms that a DRP in source role should
take to turn off power after the PsSourceOff timer starts. PsSourceOff
timer starts when a sink's PHY layer receives EOP of the GoodCRC message
(corresponding to an Accept message sent in response to a PR_Swap or a
FR_Swap request). This timer stops when last bit of GoodCRC EOP
corresponding to the received PS_RDY message is transmitted by the PHY
layer. A timeout shall lead to error recovery in the type-c port.
minimum: 750
maximum: 920
default: 920
cc-debounce-time-ms:
description: Represents the max time in ms that a port shall wait to
determine if it's attached to a partner.
minimum: 100
maximum: 200
default: 200
dependencies:
sink-vdos-v1: [ sink-vdos ]
sink-vdos: [ sink-vdos-v1 ]
@ -380,7 +410,7 @@ examples:
};
# USB-C connector attached to a typec port controller(ptn5110), which has
# power delivery support and enables drp.
# power delivery support, explicitly defines time properties and enables drp.
- |
#include <dt-bindings/usb/pd.h>
typec: ptn5110 {
@ -393,6 +423,9 @@ examples:
sink-pdos = <PDO_FIXED(5000, 2000, PDO_FIXED_USB_COMM)
PDO_VAR(5000, 12000, 2000)>;
op-sink-microwatt = <10000000>;
sink-wait-cap-time-ms = <465>;
ps-source-off-time-ms = <835>;
cc-debounce-time-ms = <101>;
};
};