From 6265a600b1779639b40b80ba1a8fd426d1fec7a5 Mon Sep 17 00:00:00 2001 From: Ondrej Jirman Date: Sat, 2 Apr 2022 03:19:36 +0200 Subject: [PATCH 417/484] power: supply: ip5xxx: Add ip5xxx-usb supply This supply represents presnece of the USB power supply on VIN. Signed-off-by: Ondrej Jirman --- drivers/power/supply/ip5xxx_power.c | 49 +++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) diff --git a/drivers/power/supply/ip5xxx_power.c b/drivers/power/supply/ip5xxx_power.c index 1424fe4a0d15..78b5782f6bb6 100644 --- a/drivers/power/supply/ip5xxx_power.c +++ b/drivers/power/supply/ip5xxx_power.c @@ -40,6 +40,8 @@ struct ip5xxx { struct regmap_field *timeout; /* Overvoltage limit */ struct regmap_field *vin_overvolt; + /* VIN present */ + struct regmap_field *vin_present; } charger; struct { /* Boost converter status */ @@ -127,6 +129,7 @@ struct ip5xxx_regfield_config { const struct reg_field charger_chg_end; const struct reg_field charger_timeout; const struct reg_field charger_vin_overvolt; + const struct reg_field charger_vin_present; const struct reg_field boost_status; const struct reg_field boost_enable; const struct reg_field boost_llshdn_enable; @@ -739,6 +742,45 @@ static const struct power_supply_desc ip5xxx_boost_desc = { .property_is_writeable = ip5xxx_boost_property_is_writeable, }; +static const enum power_supply_property ip5xxx_usb_properties[] = { + POWER_SUPPLY_PROP_PRESENT, +}; + +static int ip5xxx_usb_get_property(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + struct ip5xxx *ip5xxx = power_supply_get_drvdata(psy); + unsigned int rval; + int ret; + + ret = ip5xxx_initialize(psy); + if (ret) + return ret; + + switch (psp) { + case POWER_SUPPLY_PROP_PRESENT: + ret = ip5xxx_read(ip5xxx, ip5xxx->regs.charger.vin_present, &rval); + if (ret) + return ret; + + val->intval = !!rval; + return 0; + + default: + return -EINVAL; + } +} + +static const struct power_supply_desc ip5xxx_usb_desc = { + .name = "ip5xxx-usb", + .type = POWER_SUPPLY_TYPE_USB, + .properties = ip5xxx_usb_properties, + .num_properties = ARRAY_SIZE(ip5xxx_usb_properties), + .get_property = ip5xxx_usb_get_property, + .property_is_writeable = ip5xxx_boost_property_is_writeable, +}; + static const struct regmap_config ip5xxx_regmap_config = { .reg_bits = 8, .val_bits = 8, @@ -753,6 +795,7 @@ static struct ip5xxx_regfield_config ip51xx_fields = { .charger_chg_end = REG_FIELD(0x71, 3, 3), .charger_timeout = REG_FIELD(0x71, 0, 2), .charger_vin_overvolt = REG_FIELD(0x72, 5, 5), + .charger_vin_present = REG_FIELD(0x70, 4, 4), .boost_status = REG_FIELD(0x70, 2, 2), .boost_enable = REG_FIELD(0x01, 2, 2), .boost_llshdn_enable = REG_FIELD(0x02, 1, 1), @@ -794,6 +837,7 @@ static struct ip5xxx_regfield_config ip5306_fields = { .charger_chg_end = REG_FIELD(0x71, 3, 3), .charger_timeout = REG_FIELD_UNSUPPORTED, .charger_vin_overvolt = REG_FIELD_UNSUPPORTED, + .charger_vin_present = REG_FIELD_UNSUPPORTED, .boost_status = REG_FIELD_UNSUPPORTED, .boost_enable = REG_FIELD(0x00, 5, 5), .boost_llshdn_enable = REG_FIELD_UNSUPPORTED, @@ -850,6 +894,7 @@ static void ip5xxx_setup_regs(struct device *dev, struct ip5xxx *ip5xxx, ip5xxx_setup_reg(charger_chg_end, charger.chg_end); ip5xxx_setup_reg(charger_timeout, charger.timeout); ip5xxx_setup_reg(charger_vin_overvolt, charger.vin_overvolt); + ip5xxx_setup_reg(charger_vin_present, charger.vin_present); ip5xxx_setup_reg(boost_enable, boost.enable); ip5xxx_setup_reg(boost_status, boost.status); ip5xxx_setup_reg(boost_llshdn_enable, boost.light_load_shutdown.enable); @@ -916,6 +961,10 @@ static int ip5xxx_power_probe(struct i2c_client *client) if (IS_ERR(psy)) return PTR_ERR(psy); + psy = devm_power_supply_register(dev, &ip5xxx_usb_desc, &psy_cfg); + if (IS_ERR(psy)) + return PTR_ERR(psy); + ret = power_supply_get_battery_info(psy, &ip5xxx->bat); if (ret) return dev_err_probe(dev, ret, "Failed to get battery info\n"); -- 2.49.0