From: Kyle Tso kyletso@google.com
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: f0690a25a140 ("staging: typec: USB Type-C Port Manager (tcpm)") Cc: stable stable@vger.kernel.org Reviewed-by: Guenter Roeck linux@roeck-us.net Signed-off-by: Kyle Tso kyletso@google.com Link: https://lore.kernel.org/r/20210528081613.730661-1-kyletso@google.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- include/linux/usb/pd.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/usb/pd.h b/include/linux/usb/pd.h index bdf4c88d2aa0a..c16574d4bd855 100644 --- a/include/linux/usb/pd.h +++ b/include/linux/usb/pd.h @@ -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