2021-03-16 22:57:23

by Badhri Jagan Sridharan

[permalink] [raw]
Subject: [PATCH] usb: typec: tcpm: Invoke power_supply_changed for tcpm-source-psy-

tcpm-source-psy- does not invoke power_supply_changed API when
one of the published power supply property is changed.
power_supply_changed needs to be called to notify
userspace clients(uevents) and kernel clients.

Fixes: f2a8aa053c176("typec: tcpm: Represent source supply through
power_supply")
Signed-off-by: Badhri Jagan Sridharan <[email protected]>
---
drivers/usb/typec/tcpm/tcpm.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
index 11d0c40bc47d..e8936ea17f80 100644
--- a/drivers/usb/typec/tcpm/tcpm.c
+++ b/drivers/usb/typec/tcpm/tcpm.c
@@ -945,6 +945,7 @@ static int tcpm_set_current_limit(struct tcpm_port *port, u32 max_ma, u32 mv)

port->supply_voltage = mv;
port->current_limit = max_ma;
+ power_supply_changed(port->psy);

if (port->tcpc->set_current_limit)
ret = port->tcpc->set_current_limit(port->tcpc, max_ma, mv);
@@ -2931,6 +2932,7 @@ static int tcpm_pd_select_pdo(struct tcpm_port *port, int *sink_pdo,

port->pps_data.supported = false;
port->usb_type = POWER_SUPPLY_USB_TYPE_PD;
+ power_supply_changed(port->psy);

/*
* Select the source PDO providing the most power which has a
@@ -2955,6 +2957,7 @@ static int tcpm_pd_select_pdo(struct tcpm_port *port, int *sink_pdo,
port->pps_data.supported = true;
port->usb_type =
POWER_SUPPLY_USB_TYPE_PD_PPS;
+ power_supply_changed(port->psy);
}
continue;
default:
@@ -3112,6 +3115,7 @@ static unsigned int tcpm_pd_select_pps_apdo(struct tcpm_port *port)
port->pps_data.out_volt));
port->pps_data.op_curr = min(port->pps_data.max_curr,
port->pps_data.op_curr);
+ power_supply_changed(port->psy);
}

return src_pdo;
@@ -3347,6 +3351,7 @@ static int tcpm_set_charge(struct tcpm_port *port, bool charge)
return ret;
}
port->vbus_charge = charge;
+ power_supply_changed(port->psy);
return 0;
}

@@ -3530,6 +3535,7 @@ static void tcpm_reset_port(struct tcpm_port *port)
port->try_src_count = 0;
port->try_snk_count = 0;
port->usb_type = POWER_SUPPLY_USB_TYPE_C;
+ power_supply_changed(port->psy);
port->nr_sink_caps = 0;
port->sink_cap_done = false;
if (port->tcpc->enable_frs)
@@ -5957,7 +5963,7 @@ static int tcpm_psy_set_prop(struct power_supply *psy,
ret = -EINVAL;
break;
}
-
+ power_supply_changed(port->psy);
return ret;
}

@@ -6110,6 +6116,7 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
err = devm_tcpm_psy_register(port);
if (err)
goto out_role_sw_put;
+ power_supply_changed(port->psy);

port->typec_port = typec_register_port(port->dev, &port->typec_caps);
if (IS_ERR(port->typec_port)) {
--
2.31.0.rc2.261.g7f71774620-goog


2021-03-16 23:03:07

by Guenter Roeck

[permalink] [raw]
Subject: Re: [PATCH] usb: typec: tcpm: Invoke power_supply_changed for tcpm-source-psy-

On 3/16/21 2:56 PM, Badhri Jagan Sridharan wrote:
> tcpm-source-psy- does not invoke power_supply_changed API when
> one of the published power supply property is changed.

properties

> power_supply_changed needs to be called to notify
> userspace clients(uevents) and kernel clients.
>
> Fixes: f2a8aa053c176("typec: tcpm: Represent source supply through
> power_supply")

Is that supposed to be split ?

> Signed-off-by: Badhri Jagan Sridharan <[email protected]>

Otherwise

Reviewed-by: Guenter Roeck <[email protected]>

> ---
> drivers/usb/typec/tcpm/tcpm.c | 9 ++++++++-
> 1 file changed, 8 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
> index 11d0c40bc47d..e8936ea17f80 100644
> --- a/drivers/usb/typec/tcpm/tcpm.c
> +++ b/drivers/usb/typec/tcpm/tcpm.c
> @@ -945,6 +945,7 @@ static int tcpm_set_current_limit(struct tcpm_port *port, u32 max_ma, u32 mv)
>
> port->supply_voltage = mv;
> port->current_limit = max_ma;
> + power_supply_changed(port->psy);
>
> if (port->tcpc->set_current_limit)
> ret = port->tcpc->set_current_limit(port->tcpc, max_ma, mv);
> @@ -2931,6 +2932,7 @@ static int tcpm_pd_select_pdo(struct tcpm_port *port, int *sink_pdo,
>
> port->pps_data.supported = false;
> port->usb_type = POWER_SUPPLY_USB_TYPE_PD;
> + power_supply_changed(port->psy);
>
> /*
> * Select the source PDO providing the most power which has a
> @@ -2955,6 +2957,7 @@ static int tcpm_pd_select_pdo(struct tcpm_port *port, int *sink_pdo,
> port->pps_data.supported = true;
> port->usb_type =
> POWER_SUPPLY_USB_TYPE_PD_PPS;
> + power_supply_changed(port->psy);
> }
> continue;
> default:
> @@ -3112,6 +3115,7 @@ static unsigned int tcpm_pd_select_pps_apdo(struct tcpm_port *port)
> port->pps_data.out_volt));
> port->pps_data.op_curr = min(port->pps_data.max_curr,
> port->pps_data.op_curr);
> + power_supply_changed(port->psy);
> }
>
> return src_pdo;
> @@ -3347,6 +3351,7 @@ static int tcpm_set_charge(struct tcpm_port *port, bool charge)
> return ret;
> }
> port->vbus_charge = charge;
> + power_supply_changed(port->psy);
> return 0;
> }
>
> @@ -3530,6 +3535,7 @@ static void tcpm_reset_port(struct tcpm_port *port)
> port->try_src_count = 0;
> port->try_snk_count = 0;
> port->usb_type = POWER_SUPPLY_USB_TYPE_C;
> + power_supply_changed(port->psy);
> port->nr_sink_caps = 0;
> port->sink_cap_done = false;
> if (port->tcpc->enable_frs)
> @@ -5957,7 +5963,7 @@ static int tcpm_psy_set_prop(struct power_supply *psy,
> ret = -EINVAL;
> break;
> }
> -
> + power_supply_changed(port->psy);
> return ret;
> }
>
> @@ -6110,6 +6116,7 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
> err = devm_tcpm_psy_register(port);
> if (err)
> goto out_role_sw_put;
> + power_supply_changed(port->psy);
>
> port->typec_port = typec_register_port(port->dev, &port->typec_caps);
> if (IS_ERR(port->typec_port)) {
>

2021-03-17 08:00:12

by Heikki Krogerus

[permalink] [raw]
Subject: Re: [PATCH] usb: typec: tcpm: Invoke power_supply_changed for tcpm-source-psy-

On Tue, Mar 16, 2021 at 02:56:57PM -0700, Badhri Jagan Sridharan wrote:
> tcpm-source-psy- does not invoke power_supply_changed API when
> one of the published power supply property is changed.
> power_supply_changed needs to be called to notify
> userspace clients(uevents) and kernel clients.
>
> Fixes: f2a8aa053c176("typec: tcpm: Represent source supply through
> power_supply")
> Signed-off-by: Badhri Jagan Sridharan <[email protected]>

Reviewed-by: Heikki Krogerus <[email protected]>

> ---
> drivers/usb/typec/tcpm/tcpm.c | 9 ++++++++-
> 1 file changed, 8 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
> index 11d0c40bc47d..e8936ea17f80 100644
> --- a/drivers/usb/typec/tcpm/tcpm.c
> +++ b/drivers/usb/typec/tcpm/tcpm.c
> @@ -945,6 +945,7 @@ static int tcpm_set_current_limit(struct tcpm_port *port, u32 max_ma, u32 mv)
>
> port->supply_voltage = mv;
> port->current_limit = max_ma;
> + power_supply_changed(port->psy);
>
> if (port->tcpc->set_current_limit)
> ret = port->tcpc->set_current_limit(port->tcpc, max_ma, mv);
> @@ -2931,6 +2932,7 @@ static int tcpm_pd_select_pdo(struct tcpm_port *port, int *sink_pdo,
>
> port->pps_data.supported = false;
> port->usb_type = POWER_SUPPLY_USB_TYPE_PD;
> + power_supply_changed(port->psy);
>
> /*
> * Select the source PDO providing the most power which has a
> @@ -2955,6 +2957,7 @@ static int tcpm_pd_select_pdo(struct tcpm_port *port, int *sink_pdo,
> port->pps_data.supported = true;
> port->usb_type =
> POWER_SUPPLY_USB_TYPE_PD_PPS;
> + power_supply_changed(port->psy);
> }
> continue;
> default:
> @@ -3112,6 +3115,7 @@ static unsigned int tcpm_pd_select_pps_apdo(struct tcpm_port *port)
> port->pps_data.out_volt));
> port->pps_data.op_curr = min(port->pps_data.max_curr,
> port->pps_data.op_curr);
> + power_supply_changed(port->psy);
> }
>
> return src_pdo;
> @@ -3347,6 +3351,7 @@ static int tcpm_set_charge(struct tcpm_port *port, bool charge)
> return ret;
> }
> port->vbus_charge = charge;
> + power_supply_changed(port->psy);
> return 0;
> }
>
> @@ -3530,6 +3535,7 @@ static void tcpm_reset_port(struct tcpm_port *port)
> port->try_src_count = 0;
> port->try_snk_count = 0;
> port->usb_type = POWER_SUPPLY_USB_TYPE_C;
> + power_supply_changed(port->psy);
> port->nr_sink_caps = 0;
> port->sink_cap_done = false;
> if (port->tcpc->enable_frs)
> @@ -5957,7 +5963,7 @@ static int tcpm_psy_set_prop(struct power_supply *psy,
> ret = -EINVAL;
> break;
> }
> -
> + power_supply_changed(port->psy);
> return ret;
> }
>
> @@ -6110,6 +6116,7 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
> err = devm_tcpm_psy_register(port);
> if (err)
> goto out_role_sw_put;
> + power_supply_changed(port->psy);
>
> port->typec_port = typec_register_port(port->dev, &port->typec_caps);
> if (IS_ERR(port->typec_port)) {
> --
> 2.31.0.rc2.261.g7f71774620-goog

--
heikki