diff options
| author | Li Jun <jun.li@nxp.com> | 2020-02-20 00:05:43 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-03-04 10:51:21 +0100 |
| commit | 67540460193bb5dc3841590bc76e1421d56dc173 (patch) | |
| tree | 36c9416cc269e8a71f181c074428c5964e0dd0b4 /drivers/usb/typec | |
| parent | 9cb9322a26ae84424c3e16e58617b3d8962fdbbb (diff) | |
| download | linux-67540460193bb5dc3841590bc76e1421d56dc173.tar.bz2 | |
usb: typec: tcpm: move to SNK_UNATTACHED if sink removed for DRP
Per typec spec:
Figure 4-15 Connection State Diagram: DRP
Figure 4-16 Connection State Diagram: DRP with Accessory and Try.SRC
Support
Figure 4-17 Connection State Diagram: DRP with Accessory and Try.SNK
Support
DRP port should move to Unattached.SNK instead of Unattached.SRC if
sink removed.
Signed-off-by: Li Jun <jun.li@nxp.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/1582128343-22438-1-git-send-email-jun.li@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/typec')
| -rw-r--r-- | drivers/usb/typec/tcpm/tcpm.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c index bc0032a6b9a1..de3576e6530a 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -3680,8 +3680,12 @@ static void _tcpm_cc_change(struct tcpm_port *port, enum typec_cc_status cc1, case SRC_SEND_CAPABILITIES: case SRC_READY: if (tcpm_port_is_disconnected(port) || - !tcpm_port_is_source(port)) - tcpm_set_state(port, SRC_UNATTACHED, 0); + !tcpm_port_is_source(port)) { + if (port->port_type == TYPEC_PORT_SRC) + tcpm_set_state(port, SRC_UNATTACHED, 0); + else + tcpm_set_state(port, SNK_UNATTACHED, 0); + } break; case SNK_UNATTACHED: if (tcpm_port_is_sink(port)) |