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Message-ID: <20231007020701.1912553-3-Hermes.Zhang@axis.com>
Date: Sat, 7 Oct 2023 10:07:01 +0800
From: Hermes Zhang <Hermes.Zhang@...s.com>
To: <sre@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>,
<robh+dt@...nel.org>
CC: <linux-kernel@...r.kernel.org>, <kernel@...s.com>,
Hermes Zhang <chenhuiz@...s.com>, <linux-pm@...r.kernel.org>
Subject: [PATCH 2/2] power: supply: bq24190_charger: Add support for BQ24296
From: Hermes Zhang <chenhuiz@...s.com>
The BQ24296 is most similar to the BQ24196, but the:
1. OTG config is split from CHG config (REG01)
2. ICHG (Fast Charge Current limit) range is smaller (<=3008mA)
3. NTC fault is simplified to 2 bits
Signed-off-by: Hermes Zhang <chenhuiz@...s.com>
---
drivers/power/supply/bq24190_charger.c | 269 ++++++++++++++++++++-----
1 file changed, 217 insertions(+), 52 deletions(-)
diff --git a/drivers/power/supply/bq24190_charger.c b/drivers/power/supply/bq24190_charger.c
index 3f99cb9590ba..5d6059e6395a 100644
--- a/drivers/power/supply/bq24190_charger.c
+++ b/drivers/power/supply/bq24190_charger.c
@@ -36,10 +36,16 @@
#define BQ24190_REG_POC_WDT_RESET_SHIFT 6
#define BQ24190_REG_POC_CHG_CONFIG_MASK (BIT(5) | BIT(4))
#define BQ24190_REG_POC_CHG_CONFIG_SHIFT 4
-#define BQ24190_REG_POC_CHG_CONFIG_DISABLE 0x0
-#define BQ24190_REG_POC_CHG_CONFIG_CHARGE 0x1
-#define BQ24190_REG_POC_CHG_CONFIG_OTG 0x2
-#define BQ24190_REG_POC_CHG_CONFIG_OTG_ALT 0x3
+#define BQ24190_REG_POC_CHG_CONFIG_DISABLE 0x0
+#define BQ24190_REG_POC_CHG_CONFIG_CHARGE 0x1
+#define BQ24190_REG_POC_CHG_CONFIG_OTG 0x2
+#define BQ24190_REG_POC_CHG_CONFIG_OTG_ALT 0x3
+#define BQ24296_REG_POC_OTG_CONFIG_MASK BIT(5)
+#define BQ24296_REG_POC_OTG_CONFIG_SHIFT 5
+#define BQ24296_REG_POC_CHG_CONFIG_MASK BIT(4)
+#define BQ24296_REG_POC_CHG_CONFIG_SHIFT 4
+#define BQ24296_REG_POC_OTG_CONFIG_DISABLE 0x0
+#define BQ24296_REG_POC_OTG_CONFIG_OTG 0x1
#define BQ24190_REG_POC_SYS_MIN_MASK (BIT(3) | BIT(2) | BIT(1))
#define BQ24190_REG_POC_SYS_MIN_SHIFT 1
#define BQ24190_REG_POC_SYS_MIN_MIN 3000
@@ -134,18 +140,31 @@
#define BQ24190_REG_F_BAT_FAULT_SHIFT 3
#define BQ24190_REG_F_NTC_FAULT_MASK (BIT(2) | BIT(1) | BIT(0))
#define BQ24190_REG_F_NTC_FAULT_SHIFT 0
+#define BQ24296_REG_F_NTC_FAULT_MASK (BIT(1) | BIT(0))
+#define BQ24296_REG_F_NTC_FAULT_SHIFT 0
#define BQ24190_REG_VPRS 0x0A /* Vendor/Part/Revision Status */
#define BQ24190_REG_VPRS_PN_MASK (BIT(5) | BIT(4) | BIT(3))
#define BQ24190_REG_VPRS_PN_SHIFT 3
-#define BQ24190_REG_VPRS_PN_24190 0x4
-#define BQ24190_REG_VPRS_PN_24192 0x5 /* Also 24193, 24196 */
-#define BQ24190_REG_VPRS_PN_24192I 0x3
+#define BQ24190_REG_VPRS_PN_24190 0x4
+#define BQ24190_REG_VPRS_PN_24192 0x5 /* Also 24193, 24196 */
+#define BQ24190_REG_VPRS_PN_24192I 0x3
+#define BQ24296_REG_VPRS_PN_MASK (BIT(7) | BIT(6) | BIT(5))
+#define BQ24296_REG_VPRS_PN_SHIFT 5
+#define BQ24296_REG_VPRS_PN_24296 0x1
#define BQ24190_REG_VPRS_TS_PROFILE_MASK BIT(2)
#define BQ24190_REG_VPRS_TS_PROFILE_SHIFT 2
#define BQ24190_REG_VPRS_DEV_REG_MASK (BIT(1) | BIT(0))
#define BQ24190_REG_VPRS_DEV_REG_SHIFT 0
+enum bq24190_chip {
+ BQ24190,
+ BQ24192,
+ BQ24192i,
+ BQ24196,
+ BQ24296,
+};
+
/*
* The FAULT register is latched by the bq24190 (except for NTC_FAULT)
* so the first read after a fault returns the latched value and subsequent
@@ -176,6 +195,7 @@ struct bq24190_dev_info {
u8 f_reg;
u8 ss_reg;
u8 watchdog;
+ enum bq24190_chip chip;
};
static int bq24190_charger_set_charge_type(struct bq24190_dev_info *bdi,
@@ -211,6 +231,9 @@ static const int bq24190_ccc_ichg_values[] = {
4096000, 4160000, 4224000, 4288000, 4352000, 4416000, 4480000, 4544000
};
+/* ICHG higher than 3008mA is not supported in BQ24296 */
+#define BQ24296_CCC_ICHG_VALUES_LEN 40
+
/* REG04[7:2] (VREG) in uV */
static const int bq24190_cvc_vreg_values[] = {
3504000, 3520000, 3536000, 3552000, 3568000, 3584000, 3600000, 3616000,
@@ -515,14 +538,39 @@ static int bq24190_set_otg_vbus(struct bq24190_dev_info *bdi, bool enable)
}
bdi->otg_vbus_enabled = enable;
- if (enable)
- ret = bq24190_write_mask(bdi, BQ24190_REG_POC,
- BQ24190_REG_POC_CHG_CONFIG_MASK,
- BQ24190_REG_POC_CHG_CONFIG_SHIFT,
- BQ24190_REG_POC_CHG_CONFIG_OTG);
- else
+ if (enable) {
+ if (bdi->chip == BQ24296) {
+ ret = bq24190_write_mask(bdi, BQ24190_REG_POC,
+ BQ24296_REG_POC_CHG_CONFIG_MASK,
+ BQ24296_REG_POC_CHG_CONFIG_SHIFT,
+ BQ24190_REG_POC_CHG_CONFIG_DISABLE);
+ if (ret < 0)
+ goto out;
+
+ ret = bq24190_write_mask(bdi, BQ24190_REG_POC,
+ BQ24296_REG_POC_OTG_CONFIG_MASK,
+ BQ24296_REG_POC_CHG_CONFIG_SHIFT,
+ BQ24296_REG_POC_OTG_CONFIG_OTG);
+ } else {
+ ret = bq24190_write_mask(bdi, BQ24190_REG_POC,
+ BQ24190_REG_POC_CHG_CONFIG_MASK,
+ BQ24190_REG_POC_CHG_CONFIG_SHIFT,
+ BQ24190_REG_POC_CHG_CONFIG_OTG);
+ }
+ } else {
+ if (bdi->chip == BQ24296) {
+ ret = bq24190_write_mask(bdi, BQ24190_REG_POC,
+ BQ24296_REG_POC_OTG_CONFIG_MASK,
+ BQ24296_REG_POC_CHG_CONFIG_SHIFT,
+ BQ24296_REG_POC_OTG_CONFIG_DISABLE);
+ if (ret < 0)
+ goto out;
+ }
+
ret = bq24190_charger_set_charge_type(bdi, &val);
+ }
+out:
pm_runtime_mark_last_busy(bdi->dev);
pm_runtime_put_autosuspend(bdi->dev);
@@ -552,9 +600,15 @@ static int bq24190_vbus_is_enabled(struct regulator_dev *dev)
return ret;
}
- ret = bq24190_read_mask(bdi, BQ24190_REG_POC,
+ if (bdi->chip == BQ24296) {
+ ret = bq24190_read_mask(bdi, BQ24190_REG_POC,
+ BQ24296_REG_POC_OTG_CONFIG_MASK,
+ BQ24296_REG_POC_OTG_CONFIG_SHIFT, &val);
+ } else {
+ ret = bq24190_read_mask(bdi, BQ24190_REG_POC,
BQ24190_REG_POC_CHG_CONFIG_MASK,
BQ24190_REG_POC_CHG_CONFIG_SHIFT, &val);
+ }
pm_runtime_mark_last_busy(bdi->dev);
pm_runtime_put_autosuspend(bdi->dev);
@@ -562,8 +616,12 @@ static int bq24190_vbus_is_enabled(struct regulator_dev *dev)
if (ret)
return ret;
- bdi->otg_vbus_enabled = (val == BQ24190_REG_POC_CHG_CONFIG_OTG ||
- val == BQ24190_REG_POC_CHG_CONFIG_OTG_ALT);
+ if (bdi->chip == BQ24296) {
+ bdi->otg_vbus_enabled = (val == BQ24296_REG_POC_OTG_CONFIG_OTG);
+ } else {
+ bdi->otg_vbus_enabled = (val == BQ24190_REG_POC_CHG_CONFIG_OTG ||
+ val == BQ24190_REG_POC_CHG_CONFIG_OTG_ALT);
+ }
return bdi->otg_vbus_enabled;
}
@@ -621,6 +679,7 @@ static int bq24190_set_config(struct bq24190_dev_info *bdi)
{
int ret;
u8 v;
+ int ichg_array_size = ARRAY_SIZE(bq24190_ccc_ichg_values);
ret = bq24190_read(bdi, BQ24190_REG_CTTC, &v);
if (ret < 0)
@@ -674,11 +733,14 @@ static int bq24190_set_config(struct bq24190_dev_info *bdi)
}
if (bdi->ichg) {
+ if (bdi->chip == BQ24296)
+ ichg_array_size = BQ24296_CCC_ICHG_VALUES_LEN;
+
ret = bq24190_set_field_val(bdi, BQ24190_REG_CCC,
BQ24190_REG_CCC_ICHG_MASK,
BQ24190_REG_CCC_ICHG_SHIFT,
bq24190_ccc_ichg_values,
- ARRAY_SIZE(bq24190_ccc_ichg_values),
+ ichg_array_size,
bdi->ichg);
if (ret < 0)
return ret;
@@ -835,9 +897,17 @@ static int bq24190_charger_set_charge_type(struct bq24190_dev_info *bdi,
return ret;
}
- return bq24190_write_mask(bdi, BQ24190_REG_POC,
- BQ24190_REG_POC_CHG_CONFIG_MASK,
- BQ24190_REG_POC_CHG_CONFIG_SHIFT, chg_config);
+ if (bdi->chip == BQ24296) {
+ return bq24190_write_mask(bdi, BQ24190_REG_POC,
+ BQ24296_REG_POC_CHG_CONFIG_MASK,
+ BQ24296_REG_POC_CHG_CONFIG_SHIFT,
+ chg_config);
+ } else {
+ return bq24190_write_mask(bdi, BQ24190_REG_POC,
+ BQ24190_REG_POC_CHG_CONFIG_MASK,
+ BQ24190_REG_POC_CHG_CONFIG_SHIFT,
+ chg_config);
+ }
}
static int bq24190_charger_get_health(struct bq24190_dev_info *bdi,
@@ -850,7 +920,7 @@ static int bq24190_charger_get_health(struct bq24190_dev_info *bdi,
v = bdi->f_reg;
mutex_unlock(&bdi->f_reg_lock);
- if (v & BQ24190_REG_F_NTC_FAULT_MASK) {
+ if ((bdi->chip != BQ24296) && (v & BQ24190_REG_F_NTC_FAULT_MASK)) {
switch (v >> BQ24190_REG_F_NTC_FAULT_SHIFT & 0x7) {
case 0x1: /* TS1 Cold */
case 0x3: /* TS2 Cold */
@@ -865,6 +935,17 @@ static int bq24190_charger_get_health(struct bq24190_dev_info *bdi,
default:
health = POWER_SUPPLY_HEALTH_UNKNOWN;
}
+ } else if ((bdi->chip == BQ24296) && (v & BQ24296_REG_F_NTC_FAULT_MASK)) {
+ switch (v >> BQ24296_REG_F_NTC_FAULT_SHIFT & 0x3) {
+ case 0x1: /* Hot */
+ health = POWER_SUPPLY_HEALTH_OVERHEAT;
+ break;
+ case 0x2: /* Cold */
+ health = POWER_SUPPLY_HEALTH_COLD;
+ break;
+ default:
+ health = POWER_SUPPLY_HEALTH_UNKNOWN;
+ }
} else if (v & BQ24190_REG_F_BAT_FAULT_MASK) {
health = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
} else if (v & BQ24190_REG_F_CHRG_FAULT_MASK) {
@@ -1011,11 +1092,15 @@ static int bq24190_charger_get_current(struct bq24190_dev_info *bdi,
{
u8 v;
int curr, ret;
+ int ichg_array_size = ARRAY_SIZE(bq24190_ccc_ichg_values);
+
+ if (bdi->chip == BQ24296)
+ ichg_array_size = BQ24296_CCC_ICHG_VALUES_LEN;
ret = bq24190_get_field_val(bdi, BQ24190_REG_CCC,
BQ24190_REG_CCC_ICHG_MASK, BQ24190_REG_CCC_ICHG_SHIFT,
bq24190_ccc_ichg_values,
- ARRAY_SIZE(bq24190_ccc_ichg_values), &curr);
+ ichg_array_size, &curr);
if (ret < 0)
return ret;
@@ -1038,6 +1123,7 @@ static int bq24190_charger_set_current(struct bq24190_dev_info *bdi,
{
u8 v;
int ret, curr = val->intval;
+ int ichg_array_size = ARRAY_SIZE(bq24190_ccc_ichg_values);
ret = bq24190_read_mask(bdi, BQ24190_REG_CCC,
BQ24190_REG_CCC_FORCE_20PCT_MASK,
@@ -1052,10 +1138,13 @@ static int bq24190_charger_set_current(struct bq24190_dev_info *bdi,
if (curr > bdi->ichg_max)
return -EINVAL;
+ if (bdi->chip == BQ24296)
+ ichg_array_size = BQ24296_CCC_ICHG_VALUES_LEN;
+
ret = bq24190_set_field_val(bdi, BQ24190_REG_CCC,
BQ24190_REG_CCC_ICHG_MASK, BQ24190_REG_CCC_ICHG_SHIFT,
bq24190_ccc_ichg_values,
- ARRAY_SIZE(bq24190_ccc_ichg_values), curr);
+ ichg_array_size, curr);
if (ret < 0)
return ret;
@@ -1395,25 +1484,44 @@ static int bq24190_battery_get_health(struct bq24190_dev_info *bdi,
if (v & BQ24190_REG_F_BAT_FAULT_MASK) {
health = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
} else {
- v &= BQ24190_REG_F_NTC_FAULT_MASK;
- v >>= BQ24190_REG_F_NTC_FAULT_SHIFT;
-
- switch (v) {
- case 0x0: /* Normal */
- health = POWER_SUPPLY_HEALTH_GOOD;
- break;
- case 0x1: /* TS1 Cold */
- case 0x3: /* TS2 Cold */
- case 0x5: /* Both Cold */
- health = POWER_SUPPLY_HEALTH_COLD;
- break;
- case 0x2: /* TS1 Hot */
- case 0x4: /* TS2 Hot */
- case 0x6: /* Both Hot */
- health = POWER_SUPPLY_HEALTH_OVERHEAT;
- break;
- default:
- health = POWER_SUPPLY_HEALTH_UNKNOWN;
+ if (bdi->chip == BQ24296) {
+ v &= BQ24296_REG_F_NTC_FAULT_MASK;
+ v >>= BQ24296_REG_F_NTC_FAULT_SHIFT;
+
+ switch (v) {
+ case 0x0: /* Normal */
+ health = POWER_SUPPLY_HEALTH_GOOD;
+ break;
+ case 0x1: /* Hot */
+ health = POWER_SUPPLY_HEALTH_OVERHEAT;
+ break;
+ case 0x2: /* Cold */
+ health = POWER_SUPPLY_HEALTH_COLD;
+ break;
+ default:
+ health = POWER_SUPPLY_HEALTH_UNKNOWN;
+ }
+ } else {
+ v &= BQ24190_REG_F_NTC_FAULT_MASK;
+ v >>= BQ24190_REG_F_NTC_FAULT_SHIFT;
+
+ switch (v) {
+ case 0x0: /* Normal */
+ health = POWER_SUPPLY_HEALTH_GOOD;
+ break;
+ case 0x1: /* TS1 Cold */
+ case 0x3: /* TS2 Cold */
+ case 0x5: /* Both Cold */
+ health = POWER_SUPPLY_HEALTH_COLD;
+ break;
+ case 0x2: /* TS1 Hot */
+ case 0x4: /* TS2 Hot */
+ case 0x6: /* Both Hot */
+ health = POWER_SUPPLY_HEALTH_OVERHEAT;
+ break;
+ default:
+ health = POWER_SUPPLY_HEALTH_UNKNOWN;
+ }
}
}
@@ -1601,12 +1709,17 @@ static int bq24190_configure_usb_otg(struct bq24190_dev_info *bdi, u8 ss_reg)
static void bq24190_check_status(struct bq24190_dev_info *bdi)
{
const u8 battery_mask_ss = BQ24190_REG_SS_CHRG_STAT_MASK;
- const u8 battery_mask_f = BQ24190_REG_F_BAT_FAULT_MASK
- | BQ24190_REG_F_NTC_FAULT_MASK;
+ u8 battery_mask_f = BQ24190_REG_F_BAT_FAULT_MASK;
+ u8 ntc_fault_mask = BQ24190_REG_F_NTC_FAULT_MASK;
bool alert_charger = false, alert_battery = false;
u8 ss_reg = 0, f_reg = 0;
int i, ret;
+ if (bdi->chip == BQ24296)
+ ntc_fault_mask = BQ24296_REG_F_NTC_FAULT_MASK;
+
+ battery_mask_f |= ntc_fault_mask;
+
ret = bq24190_read(bdi, BQ24190_REG_SS, &ss_reg);
if (ret < 0) {
dev_err(bdi->dev, "Can't read SS reg: %d\n", ret);
@@ -1633,7 +1746,7 @@ static void bq24190_check_status(struct bq24190_dev_info *bdi)
!!(f_reg & BQ24190_REG_F_BOOST_FAULT_MASK),
!!(f_reg & BQ24190_REG_F_CHRG_FAULT_MASK),
!!(f_reg & BQ24190_REG_F_BAT_FAULT_MASK),
- !!(f_reg & BQ24190_REG_F_NTC_FAULT_MASK));
+ !!(f_reg & ntc_fault_mask));
mutex_lock(&bdi->f_reg_lock);
if ((bdi->f_reg & battery_mask_f) != (f_reg & battery_mask_f))
@@ -1696,12 +1809,11 @@ static irqreturn_t bq24190_irq_handler_thread(int irq, void *data)
return IRQ_HANDLED;
}
-static int bq24190_hw_init(struct bq24190_dev_info *bdi)
+static int bq24190_check_chip(struct bq24190_dev_info *bdi)
{
u8 v;
int ret;
- /* First check that the device really is what its supposed to be */
ret = bq24190_read_mask(bdi, BQ24190_REG_VPRS,
BQ24190_REG_VPRS_PN_MASK,
BQ24190_REG_VPRS_PN_SHIFT,
@@ -1719,6 +1831,52 @@ static int bq24190_hw_init(struct bq24190_dev_info *bdi)
return -ENODEV;
}
+ return 0;
+}
+
+static int bq24296_check_chip(struct bq24190_dev_info *bdi)
+{
+ u8 v;
+ int ret;
+
+ ret = bq24190_read_mask(bdi, BQ24190_REG_VPRS,
+ BQ24296_REG_VPRS_PN_MASK,
+ BQ24296_REG_VPRS_PN_SHIFT,
+ &v);
+ if (ret < 0)
+ return ret;
+
+ switch (v) {
+ case BQ24296_REG_VPRS_PN_24296:
+ break;
+ default:
+ dev_err(bdi->dev, "Error unknown model: 0x%02x\n", v);
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static int bq24190_hw_init(struct bq24190_dev_info *bdi)
+{
+ int ret;
+
+ /* First check that the device really is what its supposed to be */
+ switch (bdi->chip) {
+ case BQ24190:
+ case BQ24192:
+ case BQ24192i:
+ case BQ24196:
+ ret = bq24190_check_chip(bdi);
+ break;
+ case BQ24296:
+ ret = bq24296_check_chip(bdi);
+ break;
+ default:
+ dev_err(bdi->dev, "Error unsupported model: %d\n", bdi->chip);
+ return -EINVAL;
+ }
+
ret = bq24190_register_reset(bdi);
if (ret < 0)
return ret;
@@ -1736,7 +1894,11 @@ static int bq24190_get_config(struct bq24190_dev_info *bdi)
struct power_supply_battery_info *info;
int v, idx;
- idx = ARRAY_SIZE(bq24190_ccc_ichg_values) - 1;
+ if (bdi->chip == BQ24296)
+ idx = BQ24296_CCC_ICHG_VALUES_LEN - 1;
+ else
+ idx = ARRAY_SIZE(bq24190_ccc_ichg_values) - 1;
+
bdi->ichg_max = bq24190_ccc_ichg_values[idx];
idx = ARRAY_SIZE(bq24190_cvc_vreg_values) - 1;
@@ -1804,6 +1966,7 @@ static int bq24190_probe(struct i2c_client *client)
bdi->client = client;
bdi->dev = dev;
strncpy(bdi->model_name, id->name, I2C_NAME_SIZE);
+ bdi->chip = id->driver_data;
mutex_init(&bdi->f_reg_lock);
bdi->charge_type = POWER_SUPPLY_CHARGE_TYPE_FAST;
bdi->f_reg = 0;
@@ -2029,10 +2192,11 @@ static const struct dev_pm_ops bq24190_pm_ops = {
};
static const struct i2c_device_id bq24190_i2c_ids[] = {
- { "bq24190" },
- { "bq24192" },
- { "bq24192i" },
- { "bq24196" },
+ { "bq24190", BQ24190 },
+ { "bq24192", BQ24192 },
+ { "bq24192i", BQ24192i },
+ { "bq24196", BQ24196 },
+ { "bq24296", BQ24296 },
{ },
};
MODULE_DEVICE_TABLE(i2c, bq24190_i2c_ids);
@@ -2042,6 +2206,7 @@ static const struct of_device_id bq24190_of_match[] = {
{ .compatible = "ti,bq24192", },
{ .compatible = "ti,bq24192i", },
{ .compatible = "ti,bq24196", },
+ { .compatible = "ti,bq24296", },
{ },
};
MODULE_DEVICE_TABLE(of, bq24190_of_match);
--
2.30.2
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