From: Badhri Jagan Sridharan Date: Fri, 11 Aug 2017 04:15:45 +0000 (-0700) Subject: staging: typec: tcpm: Check cc status before entering SRC_TRY_DEBOUCE X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=c79d92bda80c09c9d8d0d6b60ed0dd8408e1a4f7;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git staging: typec: tcpm: Check cc status before entering SRC_TRY_DEBOUCE [ 130.893355] state change SNK_DEBOUNCED -> SRC_TRY [ 130.893363] cc:=3 [ 130.893490] pending state change SRC_TRY -> SNK_TRYWAIT @ 100 ms [ 130.895602] CC1: 3 -> 0, CC2: 0 -> 0 [state SRC_TRY, polarity 0, disconnected] [ 130.895613] state change SRC_TRY -> SRC_TRY_DEBOUNCE [ 130.895621] pending state change SRC_TRY_DEBOUNCE -> SRC_ATTACHED @ 20 ms [ 130.916843] state change SRC_TRY_DEBOUNCE -> SRC_ATTACHED [delayed 20 ms] Although the CC state was changing to TYPEC_CC_OPEN, the port entered SRC_TRY_DEBOUNCE from SRC_TRY. The port must enter SRC_TRY_DEBOUNCE only if the CC state is TYPEC_CC_RD. Signed-off-by: Badhri Jagan Sridharan [groeck: Wording] Signed-off-by: Guenter Roeck Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/typec/tcpm.c b/drivers/staging/typec/tcpm.c index a15256c190e7..6df72f648de0 100644 --- a/drivers/staging/typec/tcpm.c +++ b/drivers/staging/typec/tcpm.c @@ -2897,7 +2897,8 @@ static void _tcpm_cc_change(struct tcpm_port *port, enum typec_cc_status cc1, break; case SRC_TRY: - tcpm_set_state(port, SRC_TRY_DEBOUNCE, 0); + if (tcpm_port_is_source(port)) + tcpm_set_state(port, SRC_TRY_DEBOUNCE, 0); break; case SRC_TRY_DEBOUNCE: tcpm_set_state(port, SRC_TRY, 0);