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usb: typec: tcpm: Query Source partner for FRS capability only if it is DRP

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Source-only port partner will always respond NOT_SUPPORTED to
GET_SINK_CAP. Avoid this redundant AMS by bailing out querying the FRS
capability if the Source port partner is not DRP.

Signed-off-by: Kyle Tso <kyletso@google.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20231205074747.1821297-1-kyletso@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Kyle Tso 2023-12-05 15:47:46 +08:00 committed by Greg Kroah-Hartman
parent 70e6163d17
commit 7d530f4cc0
1 changed files with 2 additions and 1 deletions
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3
drivers/usb/typec/tcpm/tcpm.c
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@ -4402,7 +4402,8 @@ static void run_state_machine(struct tcpm_port *port)
tcpm_set_current_limit(port, tcpm_get_current_limit(port), 5000);
tcpm_swap_complete(port, 0);
tcpm_typec_connect(port);
mod_enable_frs_delayed_work(port, 0);
if (port->pd_capable && port->source_caps[0] & PDO_FIXED_DUAL_ROLE)
mod_enable_frs_delayed_work(port, 0);
tcpm_pps_complete(port, port->pps_status);
if (port->ams != NONE_AMS)