| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.10 05/83] usb: typec: tcpm: handle SRC_STARTUP state if cc changes | Date | Mon, 11 Oct 2021 15:45:25 +0200 |
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From: Xu Yang <xu.yang_2@nxp.com>
commit 6d91017a295e9790eec02c4e43f020cdb55f5d98 upstream.
TCPM for DRP should do the same action as SRC_ATTACHED when cc changes in SRC_STARTUP state. Otherwise, TCPM will transition to SRC_UNATTACHED state which is not satisfied with the Type-C spec.
Per Type-C spec: DRP port should move to Unattached.SNK instead of Unattached.SRC if sink removed.
Fixes: 4b4e02c83167 ("typec: tcpm: Move out of staging") cc: <stable@vger.kernel.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Xu Yang <xu.yang_2@nxp.com> Link: https://lore.kernel.org/r/20210928111639.3854174-1-xu.yang_2@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/usb/typec/tcpm/tcpm.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -3922,6 +3922,7 @@ static void _tcpm_cc_change(struct tcpm_ tcpm_set_state(port, SRC_ATTACH_WAIT, 0); break; case SRC_ATTACHED: + case SRC_STARTUP: case SRC_SEND_CAPABILITIES: case SRC_READY: if (tcpm_port_is_disconnected(port) ||
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