author Vinay Simha BN 2016-09-02 20:46:57 +0530 committer John Stultz 2017-05-12 12:39:41 -0700 commit cba521131c17b70b5973c662a59d134d607ad311 (patch) tree d32a9ea9e23590ab7703944bc0b3db5b9d8b8835 parent 04be7aa13586e450728845951f969f39ed577f0e (diff) download flo-cba521131c17b70b5973c662a59d134d607ad311.tar.gz power: smb347-charger: Summit SMB345 charger IC Summit microelectronics SMB358 charger chip added. It shares the same register map and functionality with SMB347. Cc: Jonghwa Lee Cc: Sumit Semwal Cc: John Stultz Signed-off-by: Vinay Simha BN Diffstat -rw-r--r-- Documentation/devicetree/bindings/power_supply/smb347_charger.txt 1 -rw-r--r-- drivers/power/supply/smb347-charger.c 122 2 files changed, 61 insertions, 62 deletions diff --git a/Documentation/devicetree/bindings/power_supply/smb347_charger.txt b/Documentation/devicetree/bindings/power_supply/smb347_charger.txt index 91570a5..ee39b58 100644 --- a/Documentation/devicetree/bindings/power_supply/smb347_charger.txt +++ b/Documentation/devicetree/bindings/power_supply/smb347_charger.txt @@ -3,6 +3,7 @@ smb347_charger bindings [Required porperties] - compatible : "summit,smb347" + "summit,smb345" - reg : Slave address for i2c interface # At least one of followings should be set - enable-usb-charging diff --git a/drivers/power/supply/smb347-charger.c b/drivers/power/supply/smb347-charger.c index 0231844..4be638c 100644 --- a/drivers/power/supply/smb347-charger.c +++ b/drivers/power/supply/smb347-charger.c @@ -136,6 +136,7 @@ * @pdata: pointer to platform data */ struct smb347_charger { + int id; struct mutex lock; struct device *dev; struct regmap *regmap; @@ -148,58 +149,46 @@ struct smb347_charger { const struct smb347_charger_platform_data *pdata; }; +enum smb_charger_chipid { + SMB347, + SMB345, + NUM_CHIP_TYPES, +}; + /* Fast charge current in uA */ -static const unsigned int fcc_tbl[] = { - 700000, - 900000, - 1200000, - 1500000, - 1800000, - 2000000, - 2200000, - 2500000, +static const unsigned int fcc_tbl[NUM_CHIP_TYPES][8] = { + [SMB347] = { 700000, 900000, 1200000, 1500000, + 1800000, 2000000, 2200000, 2500000 }, + [SMB345] = { 200000, 450000, 600000, 900000, + 1300000, 1500000, 1800000, 2000000 }, }; /* Pre-charge current in uA */ -static const unsigned int pcc_tbl[] = { - 100000, - 150000, - 200000, - 250000, +static const unsigned int pcc_tbl[NUM_CHIP_TYPES][4] = { + [SMB347] = { 100000, 150000, 200000, 250000 }, + [SMB345] = { 150000, 250000, 350000, 450000 }, }; /* Termination current in uA */ -static const unsigned int tc_tbl[] = { - 37500, - 50000, - 100000, - 150000, - 200000, - 250000, - 500000, - 600000, +static const unsigned int tc_tbl[NUM_CHIP_TYPES][8] = { + [SMB347] = { 37500, 50000, 100000, 150000, + 200000, 250000, 500000, 600000 }, + [SMB345] = { 30000, 40000, 60000, 80000, + 100000, 125000, 150000, 200000 }, }; /* Input current limit in uA */ -static const unsigned int icl_tbl[] = { - 300000, - 500000, - 700000, - 900000, - 1200000, - 1500000, - 1800000, - 2000000, - 2200000, - 2500000, +static const unsigned int icl_tbl[NUM_CHIP_TYPES][10] = { + [SMB347] = { 300000, 500000, 700000, 900000, 1200000, + 1500000, 1800000, 2000000, 2200000, 2500000 }, + [SMB345] = { 300000, 500000, 700000, 1000000, 1500000, + 1800000, 2000000, 2000000, 2000000, 2000000 }, }; /* Charge current compensation in uA */ -static const unsigned int ccc_tbl[] = { - 250000, - 700000, - 900000, - 1200000, +static const unsigned int ccc_tbl[NUM_CHIP_TYPES][4] = { + [SMB347] = { 250000, 700000, 900000, 1200000 }, + [SMB345] = { 200000, 450000, 600000, 900000 }, }; /* Convert register value to current using lookup table */ @@ -354,10 +343,10 @@ static int smb347_start_stop_charging(struct smb347_charger *smb) static int smb347_set_charge_current(struct smb347_charger *smb) { - int ret; + int ret, id = smb->id; if (smb->pdata->max_charge_current) { - ret = current_to_hw(fcc_tbl, ARRAY_SIZE(fcc_tbl), + ret = current_to_hw(fcc_tbl[id], ARRAY_SIZE(fcc_tbl[id]), smb->pdata->max_charge_current); if (ret < 0) return ret; @@ -370,7 +359,7 @@ static int smb347_set_charge_current(struct smb347_charger *smb) } if (smb->pdata->pre_charge_current) { - ret = current_to_hw(pcc_tbl, ARRAY_SIZE(pcc_tbl), + ret = current_to_hw(pcc_tbl[id], ARRAY_SIZE(pcc_tbl[id]), smb->pdata->pre_charge_current); if (ret < 0) return ret; @@ -383,7 +372,7 @@ static int smb347_set_charge_current(struct smb347_charger *smb) } if (smb->pdata->termination_current) { - ret = current_to_hw(tc_tbl, ARRAY_SIZE(tc_tbl), + ret = current_to_hw(tc_tbl[id], ARRAY_SIZE(tc_tbl[id]), smb->pdata->termination_current); if (ret < 0) return ret; @@ -399,10 +388,10 @@ static int smb347_set_charge_current(struct smb347_charger *smb) static int smb347_set_current_limits(struct smb347_charger *smb) { - int ret; + int ret, id = smb->id; if (smb->pdata->mains_current_limit) { - ret = current_to_hw(icl_tbl, ARRAY_SIZE(icl_tbl), + ret = current_to_hw(icl_tbl[id], ARRAY_SIZE(icl_tbl[id]), smb->pdata->mains_current_limit); if (ret < 0) return ret; @@ -415,7 +404,7 @@ static int smb347_set_current_limits(struct smb347_charger *smb) } if (smb->pdata->usb_hc_current_limit) { - ret = current_to_hw(icl_tbl, ARRAY_SIZE(icl_tbl), + ret = current_to_hw(icl_tbl[id], ARRAY_SIZE(icl_tbl[id]), smb->pdata->usb_hc_current_limit); if (ret < 0) return ret; @@ -467,7 +456,7 @@ static int smb347_set_temp_limits(struct smb347_charger *smb) { bool enable_therm_monitor = false; int ret = 0; - int val; + int val, id = smb->id; if (smb->pdata->chip_temp_threshold) { val = smb->pdata->chip_temp_threshold; @@ -589,7 +578,7 @@ static int smb347_set_temp_limits(struct smb347_charger *smb) } if (smb->pdata->charge_current_compensation) { - val = current_to_hw(ccc_tbl, ARRAY_SIZE(ccc_tbl), + val = current_to_hw(ccc_tbl[id], ARRAY_SIZE(ccc_tbl[id]), smb->pdata->charge_current_compensation); if (val < 0) return val; @@ -723,10 +712,12 @@ static irqreturn_t smb347_interrupt(int irq, void *data) return IRQ_NONE; } - ret = regmap_read(smb->regmap, IRQSTAT_D, &irqstat_d); - if (ret < 0) { - dev_warn(smb->dev, "reading IRQSTAT_D failed\n"); - return IRQ_NONE; + if(smb->id != SMB345) { + ret = regmap_read(smb->regmap, IRQSTAT_D, &irqstat_d); + if (ret < 0) { + dev_warn(smb->dev, "reading IRQSTAT_D failed\n"); + return IRQ_NONE; + } } ret = regmap_read(smb->regmap, IRQSTAT_E, &irqstat_e); @@ -761,13 +752,15 @@ static irqreturn_t smb347_interrupt(int irq, void *data) * If we got a charger timeout INT that means the charge * full is not detected with in charge timeout value. */ - if (irqstat_d & IRQSTAT_D_CHARGE_TIMEOUT_IRQ) { - dev_dbg(smb->dev, "total Charge Timeout INT received\n"); + if(smb->id != SMB345) { + if (irqstat_d & IRQSTAT_D_CHARGE_TIMEOUT_IRQ) { + dev_dbg(smb->dev, "total Charge Timeout INT received\n"); - if (irqstat_d & IRQSTAT_D_CHARGE_TIMEOUT_STAT) - dev_warn(smb->dev, "charging stopped due to timeout\n"); - power_supply_changed(smb->battery); - handled = true; + if (irqstat_d & IRQSTAT_D_CHARGE_TIMEOUT_STAT) + dev_warn(smb->dev, "charging stopped due to timeout\n"); + power_supply_changed(smb->battery); + handled = true; + } } /* @@ -871,7 +864,7 @@ out: */ static int get_const_charge_current(struct smb347_charger *smb) { - int ret, intval; + int ret, intval, id = smb->id; unsigned int v; if (!smb347_is_ps_online(smb)) @@ -886,10 +879,12 @@ static int get_const_charge_current(struct smb347_charger *smb) * and we can detect which table to use from bit 5. */ if (v & 0x20) { - intval = hw_to_current(fcc_tbl, ARRAY_SIZE(fcc_tbl), v & 7); + intval = hw_to_current(fcc_tbl[id], + ARRAY_SIZE(fcc_tbl[id]), v & 7); } else { v >>= 3; - intval = hw_to_current(pcc_tbl, ARRAY_SIZE(pcc_tbl), v & 7); + intval = hw_to_current(pcc_tbl[id], + ARRAY_SIZE(pcc_tbl[id]), v & 7); } return intval; @@ -1296,6 +1291,7 @@ static int smb347_probe(struct i2c_client *client, i2c_set_clientdata(client, smb); mutex_init(&smb->lock); + smb->id = id->driver_data; smb->dev = &client->dev; smb->regmap = devm_regmap_init_i2c(client, &smb347_regmap); @@ -1370,7 +1366,8 @@ static int smb347_remove(struct i2c_client *client) } static const struct i2c_device_id smb347_id[] = { - { "smb347", 0 }, + { "smb347", SMB347 }, + { "smb345", SMB345 }, { } }; MODULE_DEVICE_TABLE(i2c, smb347_id); @@ -1378,6 +1375,7 @@ MODULE_DEVICE_TABLE(i2c, smb347_id); #ifdef CONFIG_OF static struct of_device_id of_smb347_ids[] = { { .compatible = "summit,smb347" }, + { .compatible = "summit,smb345" }, {}, }; #endif