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Commit 17cd5109 authored by Kyle Tso's avatar Kyle Tso Committed by Greg Kroah-Hartman
Browse files

usb: pd: Set PD_T_SINK_WAIT_CAP to 310ms 



commit 6490fa565534fa83593278267785a694fd378a2b upstream.

Current timer PD_T_SINK_WAIT_CAP is set to 240ms which will violate the
SinkWaitCapTimer (tTypeCSinkWaitCap 310 - 620 ms) defined in the PD
Spec if the port is faster enough when running the state machine. Set it
to the lower bound 310ms to ensure the timeout is in Spec.

Fixes: f0690a25 ("staging: typec: USB Type-C Port Manager (tcpm)")
Cc: stable <stable@vger.kernel.org>
Reviewed-by: default avatarGuenter Roeck <linux@roeck-us.net>
Signed-off-by: default avatarKyle Tso <kyletso@google.com>
Link: https://lore.kernel.org/r/20210528081613.730661-1-kyletso@google.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 4da95bce

include/linux/usb/pd.h

+1 −1
Original line number Diff line number Diff line
@@ -434,7 +434,7 @@ static inline unsigned int rdo_max_power(u32 rdo) 
#define PD_T_SENDER_RESPONSE	60	/* 24 - 30 ms, relaxed */

#define PD_T_SOURCE_ACTIVITY	45

#define PD_T_SINK_ACTIVITY	135

#define PD_T_SINK_WAIT_CAP	240

#define PD_T_SINK_WAIT_CAP	310	/* 310 - 620 ms */

#define PD_T_PS_TRANSITION	500

#define PD_T_SRC_TRANSITION	35

#define PD_T_DRP_SNK		40