| Message ID | 20230322093120.8686-1-frank.wang@rock-chips.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | [v3] usb: typec: tcpm: add get max power support | expand |
On Wed, Mar 22, 2023 at 05:31:20PM +0800, Frank Wang wrote: > Traverse fixed pdos to calculate the maximum power that the charger > can provide, and it can be get by POWER_SUPPLY_PROP_INPUT_POWER_LIMIT > property. > > Signed-off-by: Frank Wang <frank.wang@rock-chips.com> > --- > drivers/usb/typec/tcpm/tcpm.c | 24 ++++++++++++++++++++++++ > 1 file changed, 24 insertions(+) What ever happened to this patch? Frank, can you rebase it and resubmit? thanks, greg k-h
Hi Greg, On 2023/6/15 17:39, Greg KH wrote: > On Wed, Mar 22, 2023 at 05:31:20PM +0800, Frank Wang wrote: >> Traverse fixed pdos to calculate the maximum power that the charger >> can provide, and it can be get by POWER_SUPPLY_PROP_INPUT_POWER_LIMIT >> property. >> >> Signed-off-by: Frank Wang <frank.wang@rock-chips.com> >> --- >> drivers/usb/typec/tcpm/tcpm.c | 24 ++++++++++++++++++++++++ >> 1 file changed, 24 insertions(+) > What ever happened to this patch? > > Frank, can you rebase it and resubmit? Thanks for your reply, I shall resubmit it later. BR. Frank > thanks, > > greg k-h
diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c index 13830b5e2d09f..db2636ef511bc 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -6320,6 +6320,27 @@ static int tcpm_psy_get_current_now(struct tcpm_port *port, return 0; } +static int tcpm_psy_get_input_power_limit(struct tcpm_port *port, + union power_supply_propval *val) +{ + unsigned int src_mv, src_ma, max_src_uw = 0; + unsigned int i, tmp; + + for (i = 0; i < port->nr_source_caps; i++) { + u32 pdo = port->source_caps[i]; + + if (pdo_type(pdo) == PDO_TYPE_FIXED) { + src_mv = pdo_fixed_voltage(pdo); + src_ma = pdo_max_current(pdo); + tmp = src_mv * src_ma; + max_src_uw = tmp > max_src_uw ? tmp : max_src_uw; + } + } + + val->intval = max_src_uw; + return 0; +} + static int tcpm_psy_get_prop(struct power_supply *psy, enum power_supply_property psp, union power_supply_propval *val) @@ -6349,6 +6370,9 @@ static int tcpm_psy_get_prop(struct power_supply *psy, case POWER_SUPPLY_PROP_CURRENT_NOW: ret = tcpm_psy_get_current_now(port, val); break; + case POWER_SUPPLY_PROP_INPUT_POWER_LIMIT: + tcpm_psy_get_input_power_limit(port, val); + break; default: ret = -EINVAL; break;
Traverse fixed pdos to calculate the maximum power that the charger can provide, and it can be get by POWER_SUPPLY_PROP_INPUT_POWER_LIMIT property. Signed-off-by: Frank Wang <frank.wang@rock-chips.com> --- drivers/usb/typec/tcpm/tcpm.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+)