[RFC,v3,0/2] Add support for time DT property in TCPM

Message

Amit Sunil Dhamne Sept. 23, 2024, 10:40 p.m. UTC

USB PD specification defines a bunch of timers that can have a range of
acceptable values instead of specific values. These values have to be
tuned based on the platform. However, TCPM currently sets them to a
default value without providing a mechanism to set platform specific
values.

This patchset adds new DT properties per timer to allow users to define
platform specific values.

Changes compare to v2:
  - Added min, max & default values to DT property in Documentation.
  - Changed return type of tcpm_fw_get_timings to void instead of int.

Changes compared to v1:
  - Defined new properties per timer that we are interested in rather
    than defining a single pd-timers u32 array property.
  - Better description of the timer properties.
  - Since subject has changed, adding link for previous patchset for
    posterity:
    https://lore.kernel.org/all/[e-mail]/

Amit Sunil Dhamne (2):
  dt-bindings: connector: Add properties to define time values
  usb: typec: tcpm: Add support for parsing time dt properties

 .../bindings/connector/usb-connector.yaml     | 35 ++++++++-
 drivers/usb/typec/tcpm/tcpm.c                 | 74 +++++++++++++++----
 2 files changed, 92 insertions(+), 17 deletions(-)


base-commit: 68d4209158f43a558c5553ea95ab0c8975eab18c