diff options
| author | Badhri Jagan Sridharan <badhri@google.com> | 2021-04-14 22:01:21 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-05-19 10:13:18 +0200 |
| commit | 6ece86e9e88fb1e557ce1ef58e14d1d729aae59f (patch) | |
| tree | f705deefef6655de3c834e728d8f3dc0b8ec18a1 /drivers | |
| parent | 5d2f09c44ff28ac792e24e8f2ff9e29ba210fcb4 (diff) | |
usb: typec: tcpm: Fix error while calculating PPS out values
commit 374157ff88ae1a7f7927331cbc72c1ec11994e8a upstream.
"usb: typec: tcpm: Address incorrect values of tcpm psy for pps supply"
introduced a regression for req_out_volt and req_op_curr calculation.
req_out_volt should consider the newly calculated max voltage instead
of previously accepted max voltage by the port partner. Likewise,
req_op_curr should consider the newly calculated max current instead
of previously accepted max current by the port partner.
Fixes: e3a072022487 ("usb: typec: tcpm: Address incorrect values of tcpm psy for pps supply")
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Link: https://lore.kernel.org/r/20210415050121.1928298-1-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/typec/tcpm/tcpm.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c index 912dbf8ca2da..bdbd346dc59f 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -2501,10 +2501,10 @@ static unsigned int tcpm_pd_select_pps_apdo(struct tcpm_port *port) port->pps_data.req_max_volt = min(pdo_pps_apdo_max_voltage(src), pdo_pps_apdo_max_voltage(snk)); port->pps_data.req_max_curr = min_pps_apdo_current(src, snk); - port->pps_data.req_out_volt = min(port->pps_data.max_volt, - max(port->pps_data.min_volt, + port->pps_data.req_out_volt = min(port->pps_data.req_max_volt, + max(port->pps_data.req_min_volt, port->pps_data.req_out_volt)); - port->pps_data.req_op_curr = min(port->pps_data.max_curr, + port->pps_data.req_op_curr = min(port->pps_data.req_max_curr, port->pps_data.req_op_curr); } |