linux-kernel - RE: [PATCH v1 3/6] usb: typec: tcpm: update power supply once partner accepts

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Message-ID: <AM9PR10MB4134EC102F0017423E6822B480759@AM9PR10MB4134.EURPRD10.PROD.OUTLOOK.COM>
Date:   Wed, 7 Apr 2021 16:08:43 +0000
From:   Adam Thomson <Adam.Thomson.Opensource@...semi.com>
To:     Badhri Jagan Sridharan <badhri@...gle.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>,
        Adam Thomson <Adam.Thomson.Opensource@...semi.com>
CC:     "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        Kyle Tso <kyletso@...gle.com>
Subject: RE: [PATCH v1 3/6] usb: typec: tcpm: update power supply once partner
 accepts

On 06 April 2021 02:37, Badhri Jagan Sridharan wrote:

> power_supply_changed needs to be called to notify clients
> after the partner accepts the requested values for the pps
> case.
> 
> Fixes: f2a8aa053c176 ("typec: tcpm: Represent source supply through
> power_supply")
> Signed-off-by: Badhri Jagan Sridharan <badhri@...gle.com>
> ---

Missing commit information aside:

Reviewed-by: Adam Thomson <Adam.Thomson.Opensource@...semi.com>

>  drivers/usb/typec/tcpm/tcpm.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
> index d43774cc2ccf..7708b01009cb 100644
> --- a/drivers/usb/typec/tcpm/tcpm.c
> +++ b/drivers/usb/typec/tcpm/tcpm.c
> @@ -2564,6 +2564,7 @@ static void tcpm_pd_ctrl_request(struct tcpm_port
> *port,
>  			port->pps_data.max_curr = port-
> >pps_data.req_max_curr;
>  			port->req_supply_voltage = port-
> >pps_data.req_out_volt;
>  			port->req_current_limit = port->pps_data.req_op_curr;
> +			power_supply_changed(port->psy);
>  			tcpm_set_state(port, SNK_TRANSITION_SINK, 0);
>  			break;
>  		case SOFT_RESET_SEND:
> @@ -3132,7 +3133,6 @@ static unsigned int tcpm_pd_select_pps_apdo(struct
> tcpm_port *port)
>  						      port-
> >pps_data.req_out_volt));
>  		port->pps_data.req_op_curr = min(port->pps_data.max_curr,
>  						 port->pps_data.req_op_curr);
> -		power_supply_changed(port->psy);
>  	}
> 
>  	return src_pdo;
> @@ -3557,8 +3557,6 @@ static void tcpm_reset_port(struct tcpm_port *port)
>  	port->sink_cap_done = false;
>  	if (port->tcpc->enable_frs)
>  		port->tcpc->enable_frs(port->tcpc, false);
> -
> -	power_supply_changed(port->psy);
>  }
> 
>  static void tcpm_detach(struct tcpm_port *port)
> --
> 2.31.0.208.g409f899ff0-goog