diff mbox series

[5.12,087/173] usb: pd: Set PD_T_SINK_WAIT_CAP to 310ms

Message ID 20210614102701.058552380@linuxfoundation.org
State Superseded
Headers show
Series None | expand

Commit Message

Greg Kroah-Hartman June 14, 2021, 10:26 a.m. UTC 
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>
---
 include/linux/usb/pd.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

--- a/include/linux/usb/pd.h
+++ b/include/linux/usb/pd.h
@@ -460,7 +460,7 @@  static inline unsigned int rdo_max_power
 #define PD_T_RECEIVER_RESPONSE	15	/* 15ms max */
 #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