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| author |   Badhri Jagan Sridharan <badhri@google.com> | 2017-08-17 12:11:21 -0700 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-08-18 15:57:17 -0700 |
| commit | 8bf05746cffa34aab3e13e0f1c4c44d3e9cd395b (patch) | |
| tree | 86134e700acca1e494a34c5845109c22902abc62 /drivers/staging/typec | |
| parent | Staging: greybus: Match alignment with open parenthesis. (diff) | |
| download | linux-dev-8bf05746cffa34aab3e13e0f1c4c44d3e9cd395b.tar.xz linux-dev-8bf05746cffa34aab3e13e0f1c4c44d3e9cd395b.zip | |
staging: typec: tcpm: explicit_contract is always established
While in SNK_READY state, the explicit_contract seems to be
set to true irrespective of whether an explicit contract
was established for the current connection. TCPM also seems
to report the pwr_opmode as TYPEC_PWR_MODE_PD always once
the port gets into SNK_READY state. This isn't completely
true as port gets into the SNK_READY state for non-pd
type-c ports as well.
This patch sets the explicit_contract flag only when
the PS_READY message is received and the vbus has been
detected by the port controller.
Signed-off-by: Badhri Jagan Sridharan <Badhri@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/typec')
| -rw-r--r-- | drivers/staging/typec/tcpm.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/staging/typec/tcpm.c b/drivers/staging/typec/tcpm.c index 903261e80bd4..7b5ba27dd935 100644 --- a/drivers/staging/typec/tcpm.c +++ b/drivers/staging/typec/tcpm.c @@ -1373,6 +1373,7 @@ static void tcpm_pd_ctrl_request(struct tcpm_port *port, tcpm_set_current_limit(port, port->current_limit, port->supply_voltage); + port->explicit_contract = true; tcpm_set_state(port, SNK_READY, 0); } else { /* @@ -2467,9 +2468,11 @@ static void run_state_machine(struct tcpm_port *port) break; case SNK_READY: port->try_snk_count = 0; - port->explicit_contract = true; - typec_set_pwr_opmode(port->typec_port, TYPEC_PWR_MODE_PD); - port->pwr_opmode = TYPEC_PWR_MODE_PD; + if (port->explicit_contract) { + typec_set_pwr_opmode(port->typec_port, + TYPEC_PWR_MODE_PD); + port->pwr_opmode = TYPEC_PWR_MODE_PD; + } tcpm_swap_complete(port, 0); tcpm_typec_connect(port); @@ -2958,6 +2961,7 @@ static void _tcpm_pd_vbus_on(struct tcpm_port *port) port->vbus_present = true; switch (port->state) { case SNK_TRANSITION_SINK_VBUS: + port->explicit_contract = true; tcpm_set_state(port, SNK_READY, 0); break; case SNK_DISCOVERY: |