On 4/14/21 10:01 PM, Badhri Jagan Sridharan wrote:
> "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")
> Signed-off-by: Badhri Jagan Sridharan <bad...@google.com>
Reviewed-by: Guenter Roeck <li...@roeck-us.net>
> ---
> drivers/usb/typec/tcpm/tcpm.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
> index 1c32bdf62852..04652aa1f54e 100644
> --- a/drivers/usb/typec/tcpm/tcpm.c
> +++ b/drivers/usb/typec/tcpm/tcpm.c
> @@ -3132,10 +3132,10 @@ 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);
> }
>
>
