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It does USB BC 1.2 detection similar to the AXP813, however it is otherwise very different from previous AXP devices. Signed-off-by: Chris Morgan --- drivers/mfd/axp20x.c | 19 ++- drivers/power/supply/axp20x_usb_power.c | 216 +++++++++++++++++++++++- include/linux/mfd/axp20x.h | 18 ++ 3 files changed, 248 insertions(+), 5 deletions(-) diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c index 16950c3206d7..d52d0c1c3367 100644 --- a/drivers/mfd/axp20x.c +++ b/drivers/mfd/axp20x.c @@ -209,15 +209,20 @@ static const struct regmap_access_table axp313a_volatile_table = { }; static const struct regmap_range axp717_writeable_ranges[] = { - regmap_reg_range(AXP717_MODULE_EN_CONTROL_2, AXP717_MODULE_EN_CONTROL_2), - regmap_reg_range(AXP717_BOOST_CONTROL, AXP717_BOOST_CONTROL), + regmap_reg_range(AXP717_PMU_FAULT, AXP717_MODULE_EN_CONTROL_1), + regmap_reg_range(AXP717_MIN_SYS_V_CONTROL, AXP717_BOOST_CONTROL), regmap_reg_range(AXP717_IRQ0_EN, AXP717_IRQ4_EN), regmap_reg_range(AXP717_IRQ0_STATE, AXP717_IRQ4_STATE), regmap_reg_range(AXP717_DCDC_OUTPUT_CONTROL, AXP717_CPUSLDO_CONTROL), + regmap_reg_range(AXP717_ADC_CH_EN_CONTROL, AXP717_ADC_CH_EN_CONTROL), + regmap_reg_range(AXP717_ADC_DATA_SEL, AXP717_ADC_DATA_SEL), }; static const struct regmap_range axp717_volatile_ranges[] = { + regmap_reg_range(AXP717_ON_INDICATE, AXP717_BC_DETECT), regmap_reg_range(AXP717_IRQ0_STATE, AXP717_IRQ4_STATE), + regmap_reg_range(AXP717_ADC_VBAT_H, AXP717_ADC_ICHG_L), + regmap_reg_range(AXP717_ADC_DATA_H, AXP717_ADC_DATA_L), }; static const struct regmap_access_table axp717_writeable_table = { @@ -310,6 +315,11 @@ static const struct resource axp22x_usb_power_supply_resources[] = { DEFINE_RES_IRQ_NAMED(AXP22X_IRQ_VBUS_REMOVAL, "VBUS_REMOVAL"), }; +static const struct resource axp717_usb_power_supply_resources[] = { + DEFINE_RES_IRQ_NAMED(AXP717_IRQ_VBUS_PLUGIN, "VBUS_PLUGIN"), + DEFINE_RES_IRQ_NAMED(AXP717_IRQ_VBUS_REMOVAL, "VBUS_REMOVAL"), +}; + /* AXP803 and AXP813/AXP818 share the same interrupts */ static const struct resource axp803_usb_power_supply_resources[] = { DEFINE_RES_IRQ_NAMED(AXP803_IRQ_VBUS_PLUGIN, "VBUS_PLUGIN"), @@ -424,7 +434,7 @@ static const struct regmap_config axp717_regmap_config = { .val_bits = 8, .wr_table = &axp717_writeable_table, .volatile_table = &axp717_volatile_table, - .max_register = AXP717_CPUSLDO_CONTROL, + .max_register = AXP717_ADC_DATA_L, .cache_type = REGCACHE_MAPLE, }; @@ -1026,6 +1036,9 @@ static struct mfd_cell axp313a_cells[] = { static struct mfd_cell axp717_cells[] = { MFD_CELL_NAME("axp20x-regulator"), MFD_CELL_RES("axp20x-pek", axp717_pek_resources), + MFD_CELL_OF("axp717-usb-power-supply", + axp717_usb_power_supply_resources, NULL, 0, 0, + "x-powers,axp717-usb-power-supply"), }; static const struct resource axp288_adc_resources[] = { diff --git a/drivers/power/supply/axp20x_usb_power.c b/drivers/power/supply/axp20x_usb_power.c index dae7e5cfc54e..3d6815bd614b 100644 --- a/drivers/power/supply/axp20x_usb_power.c +++ b/drivers/power/supply/axp20x_usb_power.c @@ -6,6 +6,7 @@ * Copyright (C) 2014 Bruno Prémont */ +#include #include #include #include @@ -30,14 +31,25 @@ #define AXP20X_PWR_STATUS_VBUS_PRESENT BIT(5) #define AXP20X_PWR_STATUS_VBUS_USED BIT(4) +#define AXP717_PWR_STATUS_VBUS_GOOD BIT(5) + #define AXP20X_USB_STATUS_VBUS_VALID BIT(2) +#define AXP717_PMU_FAULT_VBUS BIT(5) +#define AXP717_PMU_FAULT_VSYS BIT(3) + #define AXP20X_VBUS_VHOLD_uV(b) (4000000 + (((b) >> 3) & 7) * 100000) #define AXP20X_VBUS_VHOLD_MASK GENMASK(5, 3) #define AXP20X_VBUS_VHOLD_OFFSET 3 -#define AXP20X_ADC_EN1_VBUS_CURR BIT(2) +#define AXP717_INPUT_VOL_LIMIT_MASK GENMASK(3, 0) +#define AXP717_INPUT_CUR_LIMIT_MASK GENMASK(5, 0) + #define AXP20X_ADC_EN1_VBUS_VOLT BIT(3) +#define AXP20X_ADC_EN1_VBUS_CURR BIT(2) + +#define AXP717_ADC_EN_VSYS_VOLT BIT(3) +#define AXP717_ADC_EN_VBUS_VOLT BIT(2) /* * Note do not raise the debounce time, we must report Vusb high within @@ -45,6 +57,8 @@ */ #define DEBOUNCE_TIME msecs_to_jiffies(50) +struct axp20x_usb_power; + struct axp_data { const struct power_supply_desc *power_desc; const char * const *irq_names; @@ -58,6 +72,8 @@ struct axp_data { struct reg_field usb_bc_det_fld; struct reg_field vbus_disable_bit; bool vbus_needs_polling: 1; + int (*axp20x_usb_init)(struct axp20x_usb_power *power); + void (*axp20x_read_vbus)(struct work_struct *work); }; struct axp20x_usb_power { @@ -136,6 +152,24 @@ static void axp20x_usb_power_poll_vbus(struct work_struct *work) mod_delayed_work(system_power_efficient_wq, &power->vbus_detect, DEBOUNCE_TIME); } +static void axp717_usb_power_poll_vbus(struct work_struct *work) +{ + struct axp20x_usb_power *power = + container_of(work, struct axp20x_usb_power, vbus_detect.work); + unsigned int val; + int ret; + + ret = regmap_read(power->regmap, AXP717_ON_INDICATE, &val); + if (ret) + return; + + val &= AXP717_PWR_STATUS_VBUS_GOOD; + if (val != power->old_status) + power_supply_changed(power->supply); + + power->old_status = val; +} + static int axp20x_get_usb_type(struct axp20x_usb_power *power, union power_supply_propval *val) { @@ -281,6 +315,82 @@ static int axp20x_usb_power_get_property(struct power_supply *psy, return 0; } +static int axp717_usb_power_get_property(struct power_supply *psy, + enum power_supply_property psp, union power_supply_propval *val) +{ + struct axp20x_usb_power *power = power_supply_get_drvdata(psy); + unsigned int v; + u8 bulk_reg[2]; + int ret; + + switch (psp) { + case POWER_SUPPLY_PROP_HEALTH: + val->intval = POWER_SUPPLY_HEALTH_GOOD; + ret = regmap_read(power->regmap, AXP717_PMU_FAULT_VBUS, &v); + if (ret) + return ret; + + v &= (AXP717_PMU_FAULT_VBUS | AXP717_PMU_FAULT_VSYS); + if (v) { + val->intval = POWER_SUPPLY_HEALTH_OVERVOLTAGE; + regmap_write(power->regmap, AXP717_PMU_FAULT_VBUS, v); + } + + break; + case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT: + ret = regmap_read(power->regmap, AXP717_INPUT_CUR_LIMIT_CTRL, &v); + if (ret) + return ret; + + v &= AXP717_INPUT_CUR_LIMIT_MASK; + val->intval = (v * 50000) + 100000; + break; + case POWER_SUPPLY_PROP_ONLINE: + case POWER_SUPPLY_PROP_PRESENT: + ret = regmap_read(power->regmap, AXP717_ON_INDICATE, &v); + if (ret) + return ret; + val->intval = !!(v & AXP717_PWR_STATUS_VBUS_GOOD); + break; + case POWER_SUPPLY_PROP_USB_TYPE: + return axp20x_get_usb_type(power, val); + case POWER_SUPPLY_PROP_VOLTAGE_MIN: + ret = regmap_read(power->regmap, AXP717_INPUT_VOL_LIMIT_CTRL, &v); + if (ret) + return ret; + + v &= AXP717_INPUT_VOL_LIMIT_MASK; + val->intval = (v * 80000) + 3880000; + break; + case POWER_SUPPLY_PROP_VOLTAGE_NOW: + ret = regmap_bulk_read(power->regmap, AXP717_ADC_VBUS_H, bulk_reg, 2); + if (ret) + return ret; + val->intval = get_unaligned_be16(bulk_reg) * 1000; + break; + default: + return -EINVAL; + } + + return 0; + +} + +static int axp717_usb_init(struct axp20x_usb_power *power) +{ + int ret; + + ret = regmap_update_bits(power->regmap, AXP717_ADC_CH_EN_CONTROL, + AXP717_ADC_EN_VSYS_VOLT | + AXP717_ADC_EN_VBUS_VOLT, + AXP717_ADC_EN_VSYS_VOLT | + AXP717_ADC_EN_VBUS_VOLT); + if (ret) + return ret; + + return 0; +} + static int axp20x_usb_power_set_voltage_min(struct axp20x_usb_power *power, int intval) { @@ -307,6 +417,20 @@ static int axp20x_usb_power_set_voltage_min(struct axp20x_usb_power *power, return -EINVAL; } +static int axp717_usb_power_set_voltage_min(struct axp20x_usb_power *power, + int intval) +{ + int val; + + if (intval < 3880000 || intval > 5080000) + return -EINVAL; + + val = (intval - 3880000) / 80000; + return regmap_update_bits(power->regmap, + AXP717_INPUT_VOL_LIMIT_CTRL, + AXP717_INPUT_VOL_LIMIT_MASK, val); +} + static int axp20x_usb_power_set_input_current_limit(struct axp20x_usb_power *power, int intval) { @@ -340,6 +464,20 @@ static int axp20x_usb_power_set_input_current_limit(struct axp20x_usb_power *pow return regmap_field_write(power->curr_lim_fld, reg); } +static int axp717_usb_power_set_input_current_limit(struct axp20x_usb_power *power, + int intval) +{ + int val; + + if (intval < 100000 || intval > 3250000) + return -EINVAL; + + val = (intval - 100000) / 50000; + return regmap_update_bits(power->regmap, + AXP717_INPUT_CUR_LIMIT_CTRL, + AXP717_INPUT_CUR_LIMIT_MASK, val); +} + static int axp20x_usb_power_set_property(struct power_supply *psy, enum power_supply_property psp, const union power_supply_propval *val) @@ -366,6 +504,26 @@ static int axp20x_usb_power_set_property(struct power_supply *psy, return -EINVAL; } +static int axp717_usb_power_set_property(struct power_supply *psy, + enum power_supply_property psp, + const union power_supply_propval *val) +{ + struct axp20x_usb_power *power = power_supply_get_drvdata(psy); + + switch (psp) { + case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT: + return axp717_usb_power_set_input_current_limit(power, val->intval); + + case POWER_SUPPLY_PROP_VOLTAGE_MIN: + return axp717_usb_power_set_voltage_min(power, val->intval); + + default: + return -EINVAL; + } + + return -EINVAL; +} + static int axp20x_usb_power_prop_writeable(struct power_supply *psy, enum power_supply_property psp) { @@ -385,6 +543,13 @@ static int axp20x_usb_power_prop_writeable(struct power_supply *psy, psp == POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT; } +static int axp717_usb_power_prop_writeable(struct power_supply *psy, + enum power_supply_property psp) +{ + return psp == POWER_SUPPLY_PROP_VOLTAGE_MIN || + psp == POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT; +} + static enum power_supply_property axp20x_usb_power_properties[] = { POWER_SUPPLY_PROP_HEALTH, POWER_SUPPLY_PROP_PRESENT, @@ -403,6 +568,16 @@ static enum power_supply_property axp22x_usb_power_properties[] = { POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT, }; +static enum power_supply_property axp717_usb_power_properties[] = { + POWER_SUPPLY_PROP_HEALTH, + POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT, + POWER_SUPPLY_PROP_ONLINE, + POWER_SUPPLY_PROP_PRESENT, + POWER_SUPPLY_PROP_USB_TYPE, + POWER_SUPPLY_PROP_VOLTAGE_MIN, + POWER_SUPPLY_PROP_VOLTAGE_NOW, +}; + static enum power_supply_property axp813_usb_power_properties[] = { POWER_SUPPLY_PROP_HEALTH, POWER_SUPPLY_PROP_PRESENT, @@ -439,6 +614,18 @@ static const struct power_supply_desc axp22x_usb_power_desc = { .set_property = axp20x_usb_power_set_property, }; +static const struct power_supply_desc axp717_usb_power_desc = { + .name = "axp20x-usb", + .type = POWER_SUPPLY_TYPE_USB, + .properties = axp717_usb_power_properties, + .num_properties = ARRAY_SIZE(axp717_usb_power_properties), + .property_is_writeable = axp717_usb_power_prop_writeable, + .get_property = axp717_usb_power_get_property, + .set_property = axp717_usb_power_set_property, + .usb_types = axp813_usb_types, + .num_usb_types = ARRAY_SIZE(axp813_usb_types), +}; + static const struct power_supply_desc axp813_usb_power_desc = { .name = "axp20x-usb", .type = POWER_SUPPLY_TYPE_USB, @@ -505,6 +692,7 @@ static const struct axp_data axp192_data = { .curr_lim_fld = REG_FIELD(AXP20X_VBUS_IPSOUT_MGMT, 0, 1), .vbus_valid_bit = REG_FIELD(AXP192_USB_OTG_STATUS, 2, 2), .vbus_mon_bit = REG_FIELD(AXP20X_VBUS_MON, 3, 3), + .axp20x_read_vbus = &axp20x_usb_power_poll_vbus, }; static const struct axp_data axp202_data = { @@ -516,6 +704,7 @@ static const struct axp_data axp202_data = { .curr_lim_fld = REG_FIELD(AXP20X_VBUS_IPSOUT_MGMT, 0, 1), .vbus_valid_bit = REG_FIELD(AXP20X_USB_OTG_STATUS, 2, 2), .vbus_mon_bit = REG_FIELD(AXP20X_VBUS_MON, 3, 3), + .axp20x_read_vbus = &axp20x_usb_power_poll_vbus, }; static const struct axp_data axp221_data = { @@ -526,6 +715,7 @@ static const struct axp_data axp221_data = { .curr_lim_table_size = ARRAY_SIZE(axp221_usb_curr_lim_table), .curr_lim_fld = REG_FIELD(AXP20X_VBUS_IPSOUT_MGMT, 0, 1), .vbus_needs_polling = true, + .axp20x_read_vbus = &axp20x_usb_power_poll_vbus, }; static const struct axp_data axp223_data = { @@ -536,6 +726,18 @@ static const struct axp_data axp223_data = { .curr_lim_table_size = ARRAY_SIZE(axp20x_usb_curr_lim_table), .curr_lim_fld = REG_FIELD(AXP20X_VBUS_IPSOUT_MGMT, 0, 1), .vbus_needs_polling = true, + .axp20x_read_vbus = &axp20x_usb_power_poll_vbus, +}; + +static const struct axp_data axp717_data = { + .power_desc = &axp717_usb_power_desc, + .irq_names = axp22x_irq_names, + .num_irq_names = ARRAY_SIZE(axp22x_irq_names), + .curr_lim_fld = REG_FIELD(AXP717_INPUT_CUR_LIMIT_CTRL, 0, 5), + .usb_bc_en_bit = REG_FIELD(AXP717_MODULE_EN_CONTROL_1, 4, 4), + .usb_bc_det_fld = REG_FIELD(AXP717_BC_DETECT, 5, 7), + .axp20x_usb_init = &axp717_usb_init, + .axp20x_read_vbus = &axp717_usb_power_poll_vbus, }; static const struct axp_data axp813_data = { @@ -549,6 +751,7 @@ static const struct axp_data axp813_data = { .usb_bc_det_fld = REG_FIELD(AXP288_BC_DET_STAT, 5, 7), .vbus_disable_bit = REG_FIELD(AXP20X_VBUS_IPSOUT_MGMT, 7, 7), .vbus_needs_polling = true, + .axp20x_read_vbus = &axp20x_usb_power_poll_vbus, }; #ifdef CONFIG_PM_SLEEP @@ -707,7 +910,7 @@ static int axp20x_usb_power_probe(struct platform_device *pdev) return ret; ret = devm_delayed_work_autocancel(&pdev->dev, &power->vbus_detect, - axp20x_usb_power_poll_vbus); + axp_data->axp20x_read_vbus); if (ret) return ret; @@ -733,6 +936,12 @@ static int axp20x_usb_power_probe(struct platform_device *pdev) return ret; } + if (power->axp_data->axp20x_usb_init) { + ret = axp_data->axp20x_usb_init(power); + if (ret) + return ret; + } + psy_cfg.of_node = pdev->dev.of_node; psy_cfg.drv_data = power; @@ -778,6 +987,9 @@ static const struct of_device_id axp20x_usb_power_match[] = { }, { .compatible = "x-powers,axp223-usb-power-supply", .data = &axp223_data, + }, { + .compatible = "x-powers,axp717-usb-power-supply", + .data = &axp717_data, }, { .compatible = "x-powers,axp813-usb-power-supply", .data = &axp813_data, diff --git a/include/linux/mfd/axp20x.h b/include/linux/mfd/axp20x.h index e0cd66bd3b6d..107808df33e9 100644 --- a/include/linux/mfd/axp20x.h +++ b/include/linux/mfd/axp20x.h @@ -115,6 +115,12 @@ enum axp20x_variants { #define AXP313A_IRQ_STATE 0x21 #define AXP717_ON_INDICATE 0x00 +#define AXP717_BC_DETECT 0x05 +#define AXP717_PMU_FAULT 0x08 +#define AXP717_MODULE_EN_CONTROL_1 0x0b +#define AXP717_MIN_SYS_V_CONTROL 0x15 +#define AXP717_INPUT_VOL_LIMIT_CTRL 0x16 +#define AXP717_INPUT_CUR_LIMIT_CTRL 0x17 #define AXP717_MODULE_EN_CONTROL_2 0x19 #define AXP717_BOOST_CONTROL 0x1e #define AXP717_IRQ0_EN 0x40 @@ -147,6 +153,18 @@ enum axp20x_variants { #define AXP717_CLDO3_CONTROL 0x9d #define AXP717_CLDO4_CONTROL 0x9e #define AXP717_CPUSLDO_CONTROL 0x9f +#define AXP717_ADC_CH_EN_CONTROL 0xc0 +#define AXP717_ADC_VBAT_H 0xc4 +#define AXP717_ADC_VBAT_L 0xc5 +#define AXP717_ADC_VBUS_H 0xc6 +#define AXP717_ADC_VBUS_L 0xc7 +#define AXP717_ADC_VSYS_H 0xc8 +#define AXP717_ADC_VSYS_L 0xc9 +#define AXP717_ADC_ICHG_H 0xca +#define AXP717_ADC_ICHG_L 0xcb +#define AXP717_ADC_DATA_SEL 0xcd +#define AXP717_ADC_DATA_H 0xce +#define AXP717_ADC_DATA_L 0xcf #define AXP806_STARTUP_SRC 0x00 #define AXP806_CHIP_ID 0x03