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Date: Tue, 25 Aug 2020 14:37:56 +0800 From: Qiwu Huang <yanziily@...il.com> To: sre@...nel.org Cc: linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org, gregkh@...uxfoundation.org, Qiwu Huang <huangqiwu@...omi.com> Subject: [PATCH v9 1/4] power: supply: core: add quick charge type property From: Qiwu Huang <huangqiwu@...omi.com> Reports the kind of quick charge type based on different adapter power. Signed-off-by: Qiwu Huang <huangqiwu@...omi.com> --- Documentation/ABI/testing/sysfs-class-power | 21 ++++++ drivers/power/supply/power_supply_sysfs.c | 1 + drivers/power/supply/qcom_smbb.c | 79 +++++++++++++++++++++ include/linux/power_supply.h | 14 ++++ 4 files changed, 115 insertions(+) diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power index 216d61a22f1e..dd3773dcf16a 100644 --- a/Documentation/ABI/testing/sysfs-class-power +++ b/Documentation/ABI/testing/sysfs-class-power @@ -708,3 +708,24 @@ Description: Access: Read Valid values: 1-31 + +What: /sys/class/power_supply/<supply_name>/quick_charge_type +Date: Jul 2020 +Contact: Fei Jiang <jiangfei1@...omi.com> + Description: + Reports the kind of quick charge type based on different adapter power. + Different quick charge type represent different charging power. + QUICK_CHARGE_NORMAL : Charging Power <= 10W + QUICK_CHARGE_FAST : 10W < Charging Power <= 20W + QUICK_CHARGE_FLASH : 20W < Charging Power <= 30W + QUICK_CHARGE_TURBE : 30W < Charging Power <= 50W + QUICK_CHARGE_SUPER : Charging Power > 50W + + Access: Read-Only + Valid values: + 0: QUICK_CHARGE_NORMAL, + 1: QUICK_CHARGE_FAST, + 2: QUICK_CHARGE_FLASH, + 3: QUICK_CHARGE_TURBE, + 4: QUICK_CHARGE_SUPER. + diff --git a/drivers/power/supply/power_supply_sysfs.c b/drivers/power/supply/power_supply_sysfs.c index bc79560229b5..9554d7907373 100644 --- a/drivers/power/supply/power_supply_sysfs.c +++ b/drivers/power/supply/power_supply_sysfs.c @@ -206,6 +206,7 @@ static struct power_supply_attr power_supply_attrs[] = { POWER_SUPPLY_ATTR(MODEL_NAME), POWER_SUPPLY_ATTR(MANUFACTURER), POWER_SUPPLY_ATTR(SERIAL_NUMBER), + POWER_SUPPLY_ATTR(QUICK_CHARGE_TYPE), }; static struct attribute * diff --git a/drivers/power/supply/qcom_smbb.c b/drivers/power/supply/qcom_smbb.c index c890e1cec720..7dbb385531ca 100644 --- a/drivers/power/supply/qcom_smbb.c +++ b/drivers/power/supply/qcom_smbb.c @@ -90,6 +90,12 @@ #define STATUS_CHG_FAST BIT(7) /* Fast charging */ #define STATUS_CHG_GONE BIT(8) /* No charger is connected */ +#define IMAX_NORMAL 2000000 +#define IMAX_FAST 4000000 +#define IMAX_FLASH 6000000 +#define IMAX_TURBE 10000000 +#define IMAX_SUPER 12000000 + enum smbb_attr { ATTR_BAT_ISAFE, ATTR_BAT_IMAX, @@ -111,6 +117,7 @@ struct smbb_charger { bool dc_disabled; bool jeita_ext_temp; + bool pd_verifed; unsigned long status; struct mutex statlock; @@ -485,6 +492,58 @@ static const struct smbb_irq { { "dc-valid", smbb_dc_valid_handler }, }; +struct quick_charge { + enum power_supply_type adap_type; + enum power_supply_quick_charge_type adap_cap; +}; + +static struct quick_charge adapter_cap[10] = { + { POWER_SUPPLY_TYPE_USB, QUICK_CHARGE_NORMAL }, + { POWER_SUPPLY_TYPE_USB_DCP, QUICK_CHARGE_NORMAL }, + { POWER_SUPPLY_TYPE_USB_CDP, QUICK_CHARGE_NORMAL }, + { POWER_SUPPLY_TYPE_USB_ACA, QUICK_CHARGE_NORMAL }, + { POWER_SUPPLY_TYPE_USB_FLOAT, QUICK_CHARGE_NORMAL }, + { POWER_SUPPLY_TYPE_USB_PD, QUICK_CHARGE_FAST }, + { POWER_SUPPLY_TYPE_USB_HVDCP, QUICK_CHARGE_FAST }, + { POWER_SUPPLY_TYPE_USB_HVDCP_3, QUICK_CHARGE_FAST }, + { POWER_SUPPLY_TYPE_USB_HVDCP_3P5, QUICK_CHARGE_FAST }, + {0, 0}, +}; + +static int get_quick_charge_type(struct smbb_charger *chg) +{ + union power_supply_propval prop = {0, }; + int charger_type, rc; + int i = 0; + + rc = power_supply_get_property(chg->bat_psy, + POWER_SUPPLY_PROP_STATUS, &prop); + if (rc < 0) + return rc; + if (prop.intval == POWER_SUPPLY_STATUS_DISCHARGING) + return 0; + + rc = power_supply_get_property(chg->usb_psy, + POWER_SUPPLY_PROP_USB_TYPE, &prop); + if (rc < 0) + return rc; + charger_type = prop.intval; + + /* when pd adapter is authenticated successfully */ + if ((charger_type == POWER_SUPPLY_TYPE_USB_PD) && chg->pd_verifed) { + return QUICK_CHARGE_TURBE; + } + + while (adapter_cap[i].adap_type != 0) { + if (charger_type == adapter_cap[i].adap_type) { + return adapter_cap[i].adap_cap; + } + i++; + } + + return 0; +} + static int smbb_usbin_get_property(struct power_supply *psy, enum power_supply_property psp, union power_supply_propval *val) @@ -505,6 +564,9 @@ static int smbb_usbin_get_property(struct power_supply *psy, case POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX: val->intval = 2500000; break; + case POWER_SUPPLY_PROP_QUICK_CHARGE_TYPE: + val->intval = get_quick_charge_type(chg); + break; default: rc = -EINVAL; break; @@ -662,10 +724,26 @@ static int smbb_battery_set_property(struct power_supply *psy, const union power_supply_propval *val) { struct smbb_charger *chg = power_supply_get_drvdata(psy); + int charger_type, bat_imax; int rc; switch (psp) { case POWER_SUPPLY_PROP_CURRENT_MAX: + charger_type = get_quick_charge_type(chg); + if (charger_type == QUICK_CHARGE_NORMAL) + bat_imax = IMAX_NORMAL; + else if (charger_type == QUICK_CHARGE_FAST) + bat_imax = IMAX_FAST; + else if (charger_type == QUICK_CHARGE_FLASH) + bat_imax = IMAX_FLASH; + else if (charger_type == QUICK_CHARGE_TURBE) + bat_imax = IMAX_TURBE; + else if (charger_type == QUICK_CHARGE_SUPER) + bat_imax = IMAX_SUPER; + else + bat_imax = IMAX_NORMAL; + + val->intval = min(val->intval, bat_imax) rc = smbb_charger_attr_write(chg, ATTR_BAT_IMAX, val->intval); break; case POWER_SUPPLY_PROP_VOLTAGE_MAX: @@ -695,6 +773,7 @@ static enum power_supply_property smbb_charger_properties[] = { POWER_SUPPLY_PROP_ONLINE, POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT, POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX, + POWER_SUPPLY_PROP_QUICK_CHARGE_TYPE, }; static enum power_supply_property smbb_battery_properties[] = { diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h index ac1345a48ad0..bd99658c05be 100644 --- a/include/linux/power_supply.h +++ b/include/linux/power_supply.h @@ -167,6 +167,7 @@ enum power_supply_property { POWER_SUPPLY_PROP_MODEL_NAME, POWER_SUPPLY_PROP_MANUFACTURER, POWER_SUPPLY_PROP_SERIAL_NUMBER, + POWER_SUPPLY_PROP_QUICK_CHARGE_TYPE, }; enum power_supply_type { @@ -182,6 +183,10 @@ enum power_supply_type { POWER_SUPPLY_TYPE_USB_PD, /* Power Delivery Port */ POWER_SUPPLY_TYPE_USB_PD_DRP, /* PD Dual Role Port */ POWER_SUPPLY_TYPE_APPLE_BRICK_ID, /* Apple Charging Method */ + POWER_SUPPLY_TYPE_USB_HVDCP, /* High Voltage DCP */ + POWER_SUPPLY_TYPE_USB_HVDCP_3, /* Efficient High Voltage DCP */ + POWER_SUPPLY_TYPE_USB_HVDCP_3P5, /* Efficient High Voltage DCP */ + POWER_SUPPLY_TYPE_USB_FLOAT, /* Floating charger */ }; enum power_supply_usb_type { @@ -197,6 +202,15 @@ enum power_supply_usb_type { POWER_SUPPLY_USB_TYPE_APPLE_BRICK_ID, /* Apple Charging Method */ }; +enum power_supply_quick_charge_type { + QUICK_CHARGE_NORMAL = 0, /* Charging Power <= 10W */ + QUICK_CHARGE_FAST, /* 10W < Charging Power <= 20W */ + QUICK_CHARGE_FLASH, /* 20W < Charging Power <= 30W */ + QUICK_CHARGE_TURBE, /* 30W < Charging Power <= 50W */ + QUICK_CHARGE_SUPER, /* Charging Power > 50W */ + QUICK_CHARGE_MAX, +}; + enum power_supply_notifier_events { PSY_EVENT_PROP_CHANGED, }; -- 2.28.0
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