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ANDROID: usb: typec: tcpm: vendor hook for timer adjustments

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linux/usb/pd.h has a bunch of timers for which the Type-C spec defines
a range of values. These values have to be tuned based on the latency
observed in a specific architecture. However, linux opensource sets
them to a specific value without providing a mechanism to set board
specific values. While a generic way is figured out, a vendor hook
is needed in the interim.

For instance, tCCDebounce can have a value between 100msec - 200msec.

OOT_bug:
Bug: 184308605
Bug: 168245874
Bug: 173252019
Change-Id: I278b34654a7e48990b6ebe25fbe17e3aa4165098
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
This commit is contained in:
Badhri Jagan Sridharan
2021-03-31 10:56:12 -07:00
parent 16ce7f9c5e
commit f694171a83
3 changed files with 76 additions and 20 deletions
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1
drivers/android/vendor_hooks.c
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@@ -228,3 +228,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_binder_reply);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_binder_trans);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_binder_preset);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_post_init_entity_util_avg);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_typec_tcpm_get_timer);