diff options
Diffstat (limited to 'drivers/power/supply/axp20x_usb_power.c')
| -rw-r--r-- | drivers/power/supply/axp20x_usb_power.c | 722 |
1 files changed, 557 insertions, 165 deletions
diff --git a/drivers/power/supply/axp20x_usb_power.c b/drivers/power/supply/axp20x_usb_power.c index a1e6d1d44808..e75d1e377ac1 100644 --- a/drivers/power/supply/axp20x_usb_power.c +++ b/drivers/power/supply/axp20x_usb_power.c @@ -15,7 +15,6 @@ #include <linux/mfd/axp20x.h> #include <linux/module.h> #include <linux/of.h> -#include <linux/of_device.h> #include <linux/platform_device.h> #include <linux/pm.h> #include <linux/power_supply.h> @@ -26,34 +25,30 @@ #define DRVNAME "axp20x-usb-power-supply" +#define AXP192_USB_OTG_STATUS 0x04 + #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 AXP20X_VBUS_PATH_SEL BIT(7) -#define AXP20X_VBUS_PATH_SEL_OFFSET 7 +#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_VBUS_CLIMIT_MASK 3 -#define AXP20X_VBUS_CLIMIT_900mA 0 -#define AXP20X_VBUS_CLIMIT_500mA 1 -#define AXP20X_VBUS_CLIMIT_100mA 2 -#define AXP20X_VBUS_CLIMIT_NONE 3 - -#define AXP813_VBUS_CLIMIT_900mA 0 -#define AXP813_VBUS_CLIMIT_1500mA 1 -#define AXP813_VBUS_CLIMIT_2000mA 2 -#define AXP813_VBUS_CLIMIT_2500mA 3 #define AXP20X_ADC_EN1_VBUS_CURR BIT(2) #define AXP20X_ADC_EN1_VBUS_VOLT BIT(3) -#define AXP20X_VBUS_MON_VBUS_VALID BIT(3) +#define AXP717_INPUT_VOL_LIMIT_MASK GENMASK(3, 0) +#define AXP717_INPUT_CUR_LIMIT_MASK GENMASK(5, 0) +#define AXP717_ADC_DATA_MASK GENMASK(14, 0) -#define AXP813_BC_EN BIT(0) +#define AXP717_ADC_EN_VBUS_VOLT BIT(2) /* * Note do not raise the debounce time, we must report Vusb high within @@ -61,17 +56,46 @@ */ #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; + unsigned int num_irq_names; + const int *curr_lim_table; + int curr_lim_table_size; + struct reg_field curr_lim_fld; + struct reg_field vbus_valid_bit; + struct reg_field vbus_mon_bit; + struct reg_field usb_bc_en_bit; + struct reg_field usb_bc_det_fld; + struct reg_field vbus_disable_bit; + bool vbus_needs_polling: 1; + void (*axp20x_read_vbus)(struct work_struct *work); + int (*axp20x_cfg_iio_chan)(struct platform_device *pdev, + struct axp20x_usb_power *power); + int (*axp20x_cfg_adc_reg)(struct axp20x_usb_power *power); +}; + struct axp20x_usb_power { + struct device *dev; struct regmap *regmap; + struct regmap_field *curr_lim_fld; + struct regmap_field *vbus_valid_bit; + struct regmap_field *vbus_mon_bit; + struct regmap_field *usb_bc_en_bit; + struct regmap_field *usb_bc_det_fld; + struct regmap_field *vbus_disable_bit; struct power_supply *supply; - enum axp20x_variants axp20x_id; + const struct axp_data *axp_data; struct iio_channel *vbus_v; struct iio_channel *vbus_i; struct delayed_work vbus_detect; + int max_input_cur; unsigned int old_status; unsigned int online; unsigned int num_irqs; - unsigned int irqs[]; + unsigned int irqs[] __counted_by(num_irqs); }; static bool axp20x_usb_vbus_needs_polling(struct axp20x_usb_power *power) @@ -81,7 +105,7 @@ static bool axp20x_usb_vbus_needs_polling(struct axp20x_usb_power *power) * present->absent transition implies an online->offline transition * and will trigger the VBUS_REMOVAL IRQ. */ - if (power->axp20x_id >= AXP221_ID && !power->online) + if (power->axp_data->vbus_needs_polling && !power->online) return true; return false; @@ -113,6 +137,15 @@ static void axp20x_usb_power_poll_vbus(struct work_struct *work) if (val != power->old_status) power_supply_changed(power->supply); + if (power->usb_bc_en_bit && (val & AXP20X_PWR_STATUS_VBUS_PRESENT) != + (power->old_status & AXP20X_PWR_STATUS_VBUS_PRESENT)) { + dev_dbg(power->dev, "Cable status changed, re-enabling USB BC"); + ret = regmap_field_write(power->usb_bc_en_bit, 1); + if (ret) + dev_err(power->dev, "failed to enable USB BC: errno %d", + ret); + } + power->old_status = val; power->online = val & AXP20X_PWR_STATUS_VBUS_USED; @@ -121,57 +154,52 @@ out: mod_delayed_work(system_power_efficient_wq, &power->vbus_detect, DEBOUNCE_TIME); } -static int axp20x_get_current_max(struct axp20x_usb_power *power, int *val) +static void axp717_usb_power_poll_vbus(struct work_struct *work) { - unsigned int v; - int ret = regmap_read(power->regmap, AXP20X_VBUS_IPSOUT_MGMT, &v); + 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 ret; + return; - switch (v & AXP20X_VBUS_CLIMIT_MASK) { - case AXP20X_VBUS_CLIMIT_100mA: - if (power->axp20x_id == AXP221_ID) - *val = -1; /* No 100mA limit */ - else - *val = 100000; - break; - case AXP20X_VBUS_CLIMIT_500mA: - *val = 500000; - break; - case AXP20X_VBUS_CLIMIT_900mA: - *val = 900000; - break; - case AXP20X_VBUS_CLIMIT_NONE: - *val = -1; - break; - } + val &= AXP717_PWR_STATUS_VBUS_GOOD; + if (val != power->old_status) + power_supply_changed(power->supply); - return 0; + power->old_status = val; } -static int axp813_get_current_max(struct axp20x_usb_power *power, int *val) +static int axp20x_get_usb_type(struct axp20x_usb_power *power, + union power_supply_propval *val) { - unsigned int v; - int ret = regmap_read(power->regmap, AXP20X_VBUS_IPSOUT_MGMT, &v); + unsigned int reg; + int ret; + if (!power->usb_bc_det_fld) + return -EINVAL; + + ret = regmap_field_read(power->usb_bc_det_fld, ®); if (ret) return ret; - switch (v & AXP20X_VBUS_CLIMIT_MASK) { - case AXP813_VBUS_CLIMIT_900mA: - *val = 900000; + switch (reg) { + case 1: + val->intval = POWER_SUPPLY_USB_TYPE_SDP; break; - case AXP813_VBUS_CLIMIT_1500mA: - *val = 1500000; + case 2: + val->intval = POWER_SUPPLY_USB_TYPE_CDP; break; - case AXP813_VBUS_CLIMIT_2000mA: - *val = 2000000; + case 3: + val->intval = POWER_SUPPLY_USB_TYPE_DCP; break; - case AXP813_VBUS_CLIMIT_2500mA: - *val = 2500000; + default: + val->intval = POWER_SUPPLY_USB_TYPE_UNKNOWN; break; } + return 0; } @@ -192,16 +220,15 @@ static int axp20x_usb_power_get_property(struct power_supply *psy, return 0; case POWER_SUPPLY_PROP_VOLTAGE_NOW: if (IS_ENABLED(CONFIG_AXP20X_ADC)) { - ret = iio_read_channel_processed(power->vbus_v, - &val->intval); - if (ret) - return ret; - /* * IIO framework gives mV but Power Supply framework * gives uV. */ - val->intval *= 1000; + ret = iio_read_channel_processed_scale(power->vbus_v, + &val->intval, 1000); + if (ret) + return ret; + return 0; } @@ -212,22 +239,28 @@ static int axp20x_usb_power_get_property(struct power_supply *psy, val->intval = ret * 1700; /* 1 step = 1.7 mV */ return 0; - case POWER_SUPPLY_PROP_CURRENT_MAX: - if (power->axp20x_id == AXP813_ID) - return axp813_get_current_max(power, &val->intval); - return axp20x_get_current_max(power, &val->intval); + case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT: + ret = regmap_field_read(power->curr_lim_fld, &v); + if (ret) + return ret; + + if (v < power->axp_data->curr_lim_table_size) + val->intval = power->axp_data->curr_lim_table[v]; + else + val->intval = power->axp_data->curr_lim_table[ + power->axp_data->curr_lim_table_size - 1]; + return 0; case POWER_SUPPLY_PROP_CURRENT_NOW: if (IS_ENABLED(CONFIG_AXP20X_ADC)) { - ret = iio_read_channel_processed(power->vbus_i, - &val->intval); - if (ret) - return ret; - /* * IIO framework gives mA but Power Supply framework * gives uA. */ - val->intval *= 1000; + ret = iio_read_channel_processed_scale(power->vbus_i, + &val->intval, 1000); + if (ret) + return ret; + return 0; } @@ -238,6 +271,9 @@ static int axp20x_usb_power_get_property(struct power_supply *psy, val->intval = ret * 375; /* 1 step = 0.375 mA */ return 0; + + case POWER_SUPPLY_PROP_USB_TYPE: + return axp20x_get_usb_type(power, val); default: break; } @@ -256,16 +292,15 @@ static int axp20x_usb_power_get_property(struct power_supply *psy, val->intval = POWER_SUPPLY_HEALTH_GOOD; - if (power->axp20x_id == AXP202_ID) { - ret = regmap_read(power->regmap, - AXP20X_USB_OTG_STATUS, &v); + if (power->vbus_valid_bit) { + ret = regmap_field_read(power->vbus_valid_bit, &v); if (ret) return ret; - if (!(v & AXP20X_USB_STATUS_VBUS_VALID)) - val->intval = - POWER_SUPPLY_HEALTH_UNSPEC_FAILURE; + if (v == 0) + val->intval = POWER_SUPPLY_HEALTH_UNSPEC_FAILURE; } + break; case POWER_SUPPLY_PROP_PRESENT: val->intval = !!(input & AXP20X_PWR_STATUS_VBUS_PRESENT); @@ -280,14 +315,88 @@ static int axp20x_usb_power_get_property(struct power_supply *psy, return 0; } -static int axp813_usb_power_set_online(struct axp20x_usb_power *power, - int intval) +static int axp717_usb_power_get_property(struct power_supply *psy, + enum power_supply_property psp, union power_supply_propval *val) { - int val = !intval << AXP20X_VBUS_PATH_SEL_OFFSET; + struct axp20x_usb_power *power = power_supply_get_drvdata(psy); + unsigned int v; + int ret; + + switch (psp) { + case POWER_SUPPLY_PROP_HEALTH: + val->intval = POWER_SUPPLY_HEALTH_GOOD; + ret = regmap_read(power->regmap, AXP717_ON_INDICATE, &v); + if (ret) + return ret; + + if (!(v & AXP717_PWR_STATUS_VBUS_GOOD)) + val->intval = POWER_SUPPLY_HEALTH_UNKNOWN; + + 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; + + /* 50ma step size with 100ma offset. */ + 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; + + /* 80mv step size with 3.88v offset. */ + v &= AXP717_INPUT_VOL_LIMIT_MASK; + val->intval = (v * 80000) + 3880000; + break; + case POWER_SUPPLY_PROP_VOLTAGE_NOW: + if (IS_ENABLED(CONFIG_AXP20X_ADC)) { + /* + * IIO framework gives mV but Power Supply framework + * gives uV. + */ + ret = iio_read_channel_processed_scale(power->vbus_v, + &val->intval, 1000); + if (ret) + return ret; + + return 0; + } + + ret = axp20x_read_variable_width(power->regmap, + AXP717_VBUS_V_H, 16); + if (ret < 0) + return ret; + + val->intval = (ret % AXP717_ADC_DATA_MASK) * 1000; + break; + default: + return -EINVAL; + } + + return 0; - return regmap_update_bits(power->regmap, - AXP20X_VBUS_IPSOUT_MGMT, - AXP20X_VBUS_PATH_SEL, val); } static int axp20x_usb_power_set_voltage_min(struct axp20x_usb_power *power, @@ -316,52 +425,83 @@ static int axp20x_usb_power_set_voltage_min(struct axp20x_usb_power *power, return -EINVAL; } -static int axp813_usb_power_set_current_max(struct axp20x_usb_power *power, +static int axp717_usb_power_set_voltage_min(struct axp20x_usb_power *power, int intval) { int val; - switch (intval) { - case 900000: - return regmap_update_bits(power->regmap, - AXP20X_VBUS_IPSOUT_MGMT, - AXP20X_VBUS_CLIMIT_MASK, - AXP813_VBUS_CLIMIT_900mA); - case 1500000: - case 2000000: - case 2500000: - val = (intval - 1000000) / 500000; - return regmap_update_bits(power->regmap, - AXP20X_VBUS_IPSOUT_MGMT, - AXP20X_VBUS_CLIMIT_MASK, val); - default: + /* Minimum value of 3.88v and maximum of 5.08v. */ + if (intval < 3880000 || intval > 5080000) + return -EINVAL; + + /* step size of 80ma with 3.88v offset. */ + 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) +{ + int ret; + unsigned int reg; + const unsigned int max = power->axp_data->curr_lim_table_size; + + if (intval == -1) return -EINVAL; + + if (power->max_input_cur && (intval > power->max_input_cur)) { + dev_warn(power->dev, + "requested current %d clamped to max current %d\n", + intval, power->max_input_cur); + intval = power->max_input_cur; } - return -EINVAL; + /* + * BC1.2 detection can cause a race condition if we try to set a current + * limit while it's in progress. When it finishes it will overwrite the + * current limit we just set. + */ + if (power->usb_bc_en_bit) { + dev_dbg(power->dev, + "disabling BC1.2 detection because current limit was set"); + ret = regmap_field_write(power->usb_bc_en_bit, 0); + if (ret) + return ret; + } + + for (reg = max - 1; reg > 0; reg--) + if (power->axp_data->curr_lim_table[reg] <= intval) + break; + + dev_dbg(power->dev, "setting input current limit reg to %d (%d uA), requested %d uA", + reg, power->axp_data->curr_lim_table[reg], intval); + + return regmap_field_write(power->curr_lim_fld, reg); } -static int axp20x_usb_power_set_current_max(struct axp20x_usb_power *power, - int intval) +static int axp717_usb_power_set_input_current_limit(struct axp20x_usb_power *power, + int intval) { - int val; + int tmp; - switch (intval) { - case 100000: - if (power->axp20x_id == AXP221_ID) - return -EINVAL; - fallthrough; - case 500000: - case 900000: - val = (900000 - intval) / 400000; - return regmap_update_bits(power->regmap, - AXP20X_VBUS_IPSOUT_MGMT, - AXP20X_VBUS_CLIMIT_MASK, val); - default: + /* Minimum value of 100mA and maximum value of 3.25A*/ + if (intval < 100000 || intval > 3250000) return -EINVAL; + + if (power->max_input_cur && (intval > power->max_input_cur)) { + dev_warn(power->dev, + "requested current %d clamped to max current %d\n", + intval, power->max_input_cur); + intval = power->max_input_cur; } - return -EINVAL; + /* Minimum value of 100mA with step size of 50mA. */ + tmp = (intval - 100000) / 50000; + return regmap_update_bits(power->regmap, + AXP717_INPUT_CUR_LIMIT_CTRL, + AXP717_INPUT_CUR_LIMIT_MASK, tmp); } static int axp20x_usb_power_set_property(struct power_supply *psy, @@ -372,18 +512,34 @@ static int axp20x_usb_power_set_property(struct power_supply *psy, switch (psp) { case POWER_SUPPLY_PROP_ONLINE: - if (power->axp20x_id != AXP813_ID) + if (!power->vbus_disable_bit) return -EINVAL; - return axp813_usb_power_set_online(power, val->intval); + + return regmap_field_write(power->vbus_disable_bit, !val->intval); case POWER_SUPPLY_PROP_VOLTAGE_MIN: return axp20x_usb_power_set_voltage_min(power, val->intval); - case POWER_SUPPLY_PROP_CURRENT_MAX: - if (power->axp20x_id == AXP813_ID) - return axp813_usb_power_set_current_max(power, - val->intval); - return axp20x_usb_power_set_current_max(power, val->intval); + case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT: + return axp20x_usb_power_set_input_current_limit(power, val->intval); + + default: + 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; @@ -405,10 +561,68 @@ static int axp20x_usb_power_prop_writeable(struct power_supply *psy, * the VBUS input offline. */ if (psp == POWER_SUPPLY_PROP_ONLINE) - return power->axp20x_id == AXP813_ID; + return power->vbus_disable_bit != NULL; return psp == POWER_SUPPLY_PROP_VOLTAGE_MIN || - psp == POWER_SUPPLY_PROP_CURRENT_MAX; + 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 int axp20x_configure_iio_channels(struct platform_device *pdev, + struct axp20x_usb_power *power) +{ + power->vbus_v = devm_iio_channel_get(&pdev->dev, "vbus_v"); + if (IS_ERR(power->vbus_v)) { + if (PTR_ERR(power->vbus_v) == -ENODEV) + return -EPROBE_DEFER; + return PTR_ERR(power->vbus_v); + } + + power->vbus_i = devm_iio_channel_get(&pdev->dev, "vbus_i"); + if (IS_ERR(power->vbus_i)) { + if (PTR_ERR(power->vbus_i) == -ENODEV) + return -EPROBE_DEFER; + return PTR_ERR(power->vbus_i); + } + + return 0; +} + +static int axp717_configure_iio_channels(struct platform_device *pdev, + struct axp20x_usb_power *power) +{ + power->vbus_v = devm_iio_channel_get(&pdev->dev, "vbus_v"); + if (IS_ERR(power->vbus_v)) { + if (PTR_ERR(power->vbus_v) == -ENODEV) + return -EPROBE_DEFER; + return PTR_ERR(power->vbus_v); + } + + return 0; +} + +static int axp20x_configure_adc_registers(struct axp20x_usb_power *power) +{ + /* Enable vbus voltage and current measurement */ + return regmap_update_bits(power->regmap, AXP20X_ADC_EN1, + AXP20X_ADC_EN1_VBUS_CURR | + AXP20X_ADC_EN1_VBUS_VOLT, + AXP20X_ADC_EN1_VBUS_CURR | + AXP20X_ADC_EN1_VBUS_VOLT); +} + +static int axp717_configure_adc_registers(struct axp20x_usb_power *power) +{ + /* Enable vbus voltage measurement */ + return regmap_update_bits(power->regmap, AXP717_ADC_CH_EN_CONTROL, + AXP717_ADC_EN_VBUS_VOLT, + AXP717_ADC_EN_VBUS_VOLT); } static enum power_supply_property axp20x_usb_power_properties[] = { @@ -417,7 +631,7 @@ static enum power_supply_property axp20x_usb_power_properties[] = { POWER_SUPPLY_PROP_ONLINE, POWER_SUPPLY_PROP_VOLTAGE_MIN, POWER_SUPPLY_PROP_VOLTAGE_NOW, - POWER_SUPPLY_PROP_CURRENT_MAX, + POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT, POWER_SUPPLY_PROP_CURRENT_NOW, }; @@ -426,7 +640,26 @@ static enum power_supply_property axp22x_usb_power_properties[] = { POWER_SUPPLY_PROP_PRESENT, POWER_SUPPLY_PROP_ONLINE, POWER_SUPPLY_PROP_VOLTAGE_MIN, - POWER_SUPPLY_PROP_CURRENT_MAX, + 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, + POWER_SUPPLY_PROP_ONLINE, + POWER_SUPPLY_PROP_VOLTAGE_MIN, + POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT, + POWER_SUPPLY_PROP_USB_TYPE, }; static const struct power_supply_desc axp20x_usb_power_desc = { @@ -449,6 +682,34 @@ 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 = BIT(POWER_SUPPLY_USB_TYPE_SDP) | + BIT(POWER_SUPPLY_USB_TYPE_CDP) | + BIT(POWER_SUPPLY_USB_TYPE_DCP) | + BIT(POWER_SUPPLY_USB_TYPE_UNKNOWN), +}; + +static const struct power_supply_desc axp813_usb_power_desc = { + .name = "axp20x-usb", + .type = POWER_SUPPLY_TYPE_USB, + .properties = axp813_usb_power_properties, + .num_properties = ARRAY_SIZE(axp813_usb_power_properties), + .property_is_writeable = axp20x_usb_power_prop_writeable, + .get_property = axp20x_usb_power_get_property, + .set_property = axp20x_usb_power_set_property, + .usb_types = BIT(POWER_SUPPLY_USB_TYPE_SDP) | + BIT(POWER_SUPPLY_USB_TYPE_CDP) | + BIT(POWER_SUPPLY_USB_TYPE_DCP) | + BIT(POWER_SUPPLY_USB_TYPE_UNKNOWN), +}; + static const char * const axp20x_irq_names[] = { "VBUS_PLUGIN", "VBUS_REMOVAL", @@ -461,39 +722,127 @@ static const char * const axp22x_irq_names[] = { "VBUS_REMOVAL", }; -struct axp_data { - const struct power_supply_desc *power_desc; - const char * const *irq_names; - unsigned int num_irq_names; - enum axp20x_variants axp20x_id; +static const char * const axp717_irq_names[] = { + "VBUS_PLUGIN", + "VBUS_REMOVAL", + "VBUS_OVER_V", +}; + +static int axp192_usb_curr_lim_table[] = { + -1, + -1, + 500000, + 100000, +}; + +static int axp20x_usb_curr_lim_table[] = { + 900000, + 500000, + 100000, + -1, +}; + +static int axp221_usb_curr_lim_table[] = { + 900000, + 500000, + -1, + -1, +}; + +static int axp813_usb_curr_lim_table[] = { + 100000, + 500000, + 900000, + 1500000, + 2000000, + 2500000, + 3000000, + 3500000, + 4000000, +}; + +static const struct axp_data axp192_data = { + .power_desc = &axp20x_usb_power_desc, + .irq_names = axp20x_irq_names, + .num_irq_names = ARRAY_SIZE(axp20x_irq_names), + .curr_lim_table = axp192_usb_curr_lim_table, + .curr_lim_table_size = ARRAY_SIZE(axp192_usb_curr_lim_table), + .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, + .axp20x_cfg_iio_chan = axp20x_configure_iio_channels, + .axp20x_cfg_adc_reg = axp20x_configure_adc_registers, }; static const struct axp_data axp202_data = { .power_desc = &axp20x_usb_power_desc, .irq_names = axp20x_irq_names, .num_irq_names = ARRAY_SIZE(axp20x_irq_names), - .axp20x_id = AXP202_ID, + .curr_lim_table = axp20x_usb_curr_lim_table, + .curr_lim_table_size = ARRAY_SIZE(axp20x_usb_curr_lim_table), + .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, + .axp20x_cfg_iio_chan = axp20x_configure_iio_channels, + .axp20x_cfg_adc_reg = axp20x_configure_adc_registers, }; static const struct axp_data axp221_data = { .power_desc = &axp22x_usb_power_desc, .irq_names = axp22x_irq_names, .num_irq_names = ARRAY_SIZE(axp22x_irq_names), - .axp20x_id = AXP221_ID, + .curr_lim_table = axp221_usb_curr_lim_table, + .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, + .axp20x_cfg_iio_chan = axp20x_configure_iio_channels, + .axp20x_cfg_adc_reg = axp20x_configure_adc_registers, }; static const struct axp_data axp223_data = { .power_desc = &axp22x_usb_power_desc, .irq_names = axp22x_irq_names, .num_irq_names = ARRAY_SIZE(axp22x_irq_names), - .axp20x_id = AXP223_ID, + .curr_lim_table = axp20x_usb_curr_lim_table, + .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, + .axp20x_cfg_iio_chan = axp20x_configure_iio_channels, + .axp20x_cfg_adc_reg = axp20x_configure_adc_registers, +}; + +static const struct axp_data axp717_data = { + .power_desc = &axp717_usb_power_desc, + .irq_names = axp717_irq_names, + .num_irq_names = ARRAY_SIZE(axp717_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), + .vbus_mon_bit = REG_FIELD(AXP717_ADC_CH_EN_CONTROL, 2, 2), + .vbus_needs_polling = false, + .axp20x_read_vbus = &axp717_usb_power_poll_vbus, + .axp20x_cfg_iio_chan = axp717_configure_iio_channels, + .axp20x_cfg_adc_reg = axp717_configure_adc_registers, }; static const struct axp_data axp813_data = { - .power_desc = &axp22x_usb_power_desc, + .power_desc = &axp813_usb_power_desc, .irq_names = axp22x_irq_names, .num_irq_names = ARRAY_SIZE(axp22x_irq_names), - .axp20x_id = AXP813_ID, + .curr_lim_table = axp813_usb_curr_lim_table, + .curr_lim_table_size = ARRAY_SIZE(axp813_usb_curr_lim_table), + .curr_lim_fld = REG_FIELD(AXP22X_CHRG_CTRL3, 4, 7), + .usb_bc_en_bit = REG_FIELD(AXP288_BC_GLOBAL, 0, 0), + .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, + .axp20x_cfg_iio_chan = axp20x_configure_iio_channels, + .axp20x_cfg_adc_reg = axp20x_configure_adc_registers, }; #ifdef CONFIG_PM_SLEEP @@ -535,34 +884,36 @@ static int axp20x_usb_power_resume(struct device *dev) static SIMPLE_DEV_PM_OPS(axp20x_usb_power_pm_ops, axp20x_usb_power_suspend, axp20x_usb_power_resume); -static int configure_iio_channels(struct platform_device *pdev, - struct axp20x_usb_power *power) +static int axp20x_regmap_field_alloc_optional(struct device *dev, + struct regmap *regmap, + struct reg_field fdesc, + struct regmap_field **fieldp) { - power->vbus_v = devm_iio_channel_get(&pdev->dev, "vbus_v"); - if (IS_ERR(power->vbus_v)) { - if (PTR_ERR(power->vbus_v) == -ENODEV) - return -EPROBE_DEFER; - return PTR_ERR(power->vbus_v); - } + struct regmap_field *field; - power->vbus_i = devm_iio_channel_get(&pdev->dev, "vbus_i"); - if (IS_ERR(power->vbus_i)) { - if (PTR_ERR(power->vbus_i) == -ENODEV) - return -EPROBE_DEFER; - return PTR_ERR(power->vbus_i); + if (fdesc.reg == 0) { + *fieldp = NULL; + return 0; } + field = devm_regmap_field_alloc(dev, regmap, fdesc); + if (IS_ERR(field)) + return PTR_ERR(field); + + *fieldp = field; return 0; } -static int configure_adc_registers(struct axp20x_usb_power *power) +/* Optionally allow users to specify a maximum charging current. */ +static void axp20x_usb_power_parse_dt(struct device *dev, + struct axp20x_usb_power *power) { - /* Enable vbus voltage and current measurement */ - return regmap_update_bits(power->regmap, AXP20X_ADC_EN1, - AXP20X_ADC_EN1_VBUS_CURR | - AXP20X_ADC_EN1_VBUS_VOLT, - AXP20X_ADC_EN1_VBUS_CURR | - AXP20X_ADC_EN1_VBUS_VOLT); + int ret; + + ret = device_property_read_u32(dev, "input-current-limit-microamp", + &power->max_input_cur); + if (ret) + dev_dbg(dev, "%s() no input-current-limit specified\n", __func__); } static int axp20x_usb_power_probe(struct platform_device *pdev) @@ -591,41 +942,76 @@ static int axp20x_usb_power_probe(struct platform_device *pdev) platform_set_drvdata(pdev, power); - power->axp20x_id = axp_data->axp20x_id; + power->dev = &pdev->dev; + power->axp_data = axp_data; power->regmap = axp20x->regmap; power->num_irqs = axp_data->num_irq_names; + power->curr_lim_fld = devm_regmap_field_alloc(&pdev->dev, power->regmap, + axp_data->curr_lim_fld); + if (IS_ERR(power->curr_lim_fld)) + return PTR_ERR(power->curr_lim_fld); + + axp20x_usb_power_parse_dt(&pdev->dev, power); + + ret = axp20x_regmap_field_alloc_optional(&pdev->dev, power->regmap, + axp_data->vbus_valid_bit, + &power->vbus_valid_bit); + if (ret) + return ret; + + ret = axp20x_regmap_field_alloc_optional(&pdev->dev, power->regmap, + axp_data->vbus_mon_bit, + &power->vbus_mon_bit); + if (ret) + return ret; + + ret = axp20x_regmap_field_alloc_optional(&pdev->dev, power->regmap, + axp_data->usb_bc_en_bit, + &power->usb_bc_en_bit); + if (ret) + return ret; + + ret = axp20x_regmap_field_alloc_optional(&pdev->dev, power->regmap, + axp_data->usb_bc_det_fld, + &power->usb_bc_det_fld); + if (ret) + return ret; + + ret = axp20x_regmap_field_alloc_optional(&pdev->dev, power->regmap, + axp_data->vbus_disable_bit, + &power->vbus_disable_bit); + if (ret) + 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; - if (power->axp20x_id == AXP202_ID) { + if (power->vbus_mon_bit) { /* Enable vbus valid checking */ - ret = regmap_update_bits(power->regmap, AXP20X_VBUS_MON, - AXP20X_VBUS_MON_VBUS_VALID, - AXP20X_VBUS_MON_VBUS_VALID); + ret = regmap_field_write(power->vbus_mon_bit, 1); if (ret) return ret; if (IS_ENABLED(CONFIG_AXP20X_ADC)) - ret = configure_iio_channels(pdev, power); + ret = axp_data->axp20x_cfg_iio_chan(pdev, power); else - ret = configure_adc_registers(power); + ret = axp_data->axp20x_cfg_adc_reg(power); if (ret) return ret; } - if (power->axp20x_id == AXP813_ID) { + if (power->usb_bc_en_bit) { /* Enable USB Battery Charging specification detection */ - ret = regmap_update_bits(axp20x->regmap, AXP288_BC_GLOBAL, - AXP813_BC_EN, AXP813_BC_EN); + ret = regmap_field_write(power->usb_bc_en_bit, 1); if (ret) return ret; } - psy_cfg.of_node = pdev->dev.of_node; + psy_cfg.fwnode = dev_fwnode(&pdev->dev); psy_cfg.drv_data = power; power->supply = devm_power_supply_register(&pdev->dev, @@ -659,6 +1045,9 @@ static int axp20x_usb_power_probe(struct platform_device *pdev) static const struct of_device_id axp20x_usb_power_match[] = { { + .compatible = "x-powers,axp192-usb-power-supply", + .data = &axp192_data, + }, { .compatible = "x-powers,axp202-usb-power-supply", .data = &axp202_data, }, { @@ -668,6 +1057,9 @@ 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, }, { /* sentinel */ } |