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power: supply: smb347-charger: Support SMB345 and SMB358
SMB345 tested on Nexus 7 2013. Based on: - https://patchwork.kernel.org/patch/4922431/ - https://patchwork.ozlabs.org/patch/666877/ Signed-off-by: David Heidelberg <david@ixit.cz> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This commit is contained in:
David Heidelberg
Sebastian Reichel
parent
364bec7557
commit
de76fd29a7
@ -632,12 +632,12 @@ config CHARGER_BQ25890
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Say Y to enable support for the TI BQ25890 battery charger.
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config CHARGER_SMB347
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tristate "Summit Microelectronics SMB347 Battery Charger"
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tristate "Summit Microelectronics SMB3XX Battery Charger"
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depends on I2C
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select REGMAP_I2C
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help
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Say Y to include support for Summit Microelectronics SMB347
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Battery Charger.
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Say Y to include support for Summit Microelectronics SMB345,
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SMB347 or SMB358 Battery Charger.
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config CHARGER_TPS65090
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tristate "TPS65090 battery charger driver"
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@ -128,6 +128,7 @@
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* @mains: power_supply instance for AC/DC power
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* @usb: power_supply instance for USB power
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* @battery: power_supply instance for battery
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* @id: SMB charger ID
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* @mains_online: is AC/DC input connected
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* @usb_online: is USB input connected
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* @charging_enabled: is charging enabled
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@ -140,64 +141,61 @@ struct smb347_charger {
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struct power_supply *mains;
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struct power_supply *usb;
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struct power_supply *battery;
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unsigned int id;
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bool mains_online;
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bool usb_online;
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bool charging_enabled;
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const struct smb347_charger_platform_data *pdata;
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};
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/* Fast charge current in uA */
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static const unsigned int fcc_tbl[] = {
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700000,
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900000,
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1200000,
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1500000,
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1800000,
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2000000,
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2200000,
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2500000,
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enum smb_charger_chipid {
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SMB345,
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SMB347,
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SMB358,
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NUM_CHIP_TYPES,
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};
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/* Fast charge current in uA */
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static const unsigned int fcc_tbl[NUM_CHIP_TYPES][8] = {
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[SMB345] = { 200000, 450000, 600000, 900000,
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1300000, 1500000, 1800000, 2000000 },
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[SMB347] = { 700000, 900000, 1200000, 1500000,
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1800000, 2000000, 2200000, 2500000 },
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[SMB358] = { 200000, 450000, 600000, 900000,
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1300000, 1500000, 1800000, 2000000 },
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};
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/* Pre-charge current in uA */
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static const unsigned int pcc_tbl[] = {
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100000,
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150000,
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200000,
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250000,
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static const unsigned int pcc_tbl[NUM_CHIP_TYPES][4] = {
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[SMB345] = { 150000, 250000, 350000, 450000 },
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[SMB347] = { 100000, 150000, 200000, 250000 },
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[SMB358] = { 150000, 250000, 350000, 450000 },
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};
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/* Termination current in uA */
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static const unsigned int tc_tbl[] = {
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37500,
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50000,
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100000,
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150000,
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200000,
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250000,
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500000,
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600000,
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static const unsigned int tc_tbl[NUM_CHIP_TYPES][8] = {
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[SMB345] = { 30000, 40000, 60000, 80000,
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100000, 125000, 150000, 200000 },
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[SMB347] = { 37500, 50000, 100000, 150000,
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200000, 250000, 500000, 600000 },
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[SMB358] = { 30000, 40000, 60000, 80000,
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100000, 125000, 150000, 200000 },
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};
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/* Input current limit in uA */
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static const unsigned int icl_tbl[] = {
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300000,
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500000,
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700000,
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900000,
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1200000,
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1500000,
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1800000,
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2000000,
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2200000,
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2500000,
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static const unsigned int icl_tbl[NUM_CHIP_TYPES][10] = {
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[SMB345] = { 300000, 500000, 700000, 1000000, 1500000,
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1800000, 2000000, 2000000, 2000000, 2000000 },
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[SMB347] = { 300000, 500000, 700000, 900000, 1200000,
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1500000, 1800000, 2000000, 2200000, 2500000 },
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[SMB358] = { 300000, 500000, 700000, 1000000, 1500000,
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1800000, 2000000, 2000000, 2000000, 2000000 },
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};
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/* Charge current compensation in uA */
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static const unsigned int ccc_tbl[] = {
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250000,
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700000,
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900000,
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1200000,
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static const unsigned int ccc_tbl[NUM_CHIP_TYPES][4] = {
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[SMB345] = { 200000, 450000, 600000, 900000 },
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[SMB347] = { 250000, 700000, 900000, 1200000 },
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[SMB358] = { 200000, 450000, 600000, 900000 },
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};
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/* Convert register value to current using lookup table */
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@ -352,10 +350,11 @@ static int smb347_start_stop_charging(struct smb347_charger *smb)
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static int smb347_set_charge_current(struct smb347_charger *smb)
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{
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unsigned int id = smb->id;
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int ret;
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if (smb->pdata->max_charge_current) {
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ret = current_to_hw(fcc_tbl, ARRAY_SIZE(fcc_tbl),
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ret = current_to_hw(fcc_tbl[id], ARRAY_SIZE(fcc_tbl[id]),
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smb->pdata->max_charge_current);
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if (ret < 0)
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return ret;
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@ -368,7 +367,7 @@ static int smb347_set_charge_current(struct smb347_charger *smb)
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}
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if (smb->pdata->pre_charge_current) {
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ret = current_to_hw(pcc_tbl, ARRAY_SIZE(pcc_tbl),
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ret = current_to_hw(pcc_tbl[id], ARRAY_SIZE(pcc_tbl[id]),
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smb->pdata->pre_charge_current);
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if (ret < 0)
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return ret;
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@ -381,7 +380,7 @@ static int smb347_set_charge_current(struct smb347_charger *smb)
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}
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if (smb->pdata->termination_current) {
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ret = current_to_hw(tc_tbl, ARRAY_SIZE(tc_tbl),
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ret = current_to_hw(tc_tbl[id], ARRAY_SIZE(tc_tbl[id]),
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smb->pdata->termination_current);
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if (ret < 0)
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return ret;
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@ -397,10 +396,11 @@ static int smb347_set_charge_current(struct smb347_charger *smb)
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static int smb347_set_current_limits(struct smb347_charger *smb)
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{
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unsigned int id = smb->id;
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int ret;
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if (smb->pdata->mains_current_limit) {
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ret = current_to_hw(icl_tbl, ARRAY_SIZE(icl_tbl),
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ret = current_to_hw(icl_tbl[id], ARRAY_SIZE(icl_tbl[id]),
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smb->pdata->mains_current_limit);
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if (ret < 0)
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return ret;
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@ -413,7 +413,7 @@ static int smb347_set_current_limits(struct smb347_charger *smb)
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}
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if (smb->pdata->usb_hc_current_limit) {
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ret = current_to_hw(icl_tbl, ARRAY_SIZE(icl_tbl),
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ret = current_to_hw(icl_tbl[id], ARRAY_SIZE(icl_tbl[id]),
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smb->pdata->usb_hc_current_limit);
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if (ret < 0)
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return ret;
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@ -463,6 +463,7 @@ static int smb347_set_voltage_limits(struct smb347_charger *smb)
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static int smb347_set_temp_limits(struct smb347_charger *smb)
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{
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unsigned int id = smb->id;
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bool enable_therm_monitor = false;
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int ret = 0;
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int val;
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@ -587,7 +588,7 @@ static int smb347_set_temp_limits(struct smb347_charger *smb)
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}
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if (smb->pdata->charge_current_compensation) {
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val = current_to_hw(ccc_tbl, ARRAY_SIZE(ccc_tbl),
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val = current_to_hw(ccc_tbl[id], ARRAY_SIZE(ccc_tbl[id]),
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smb->pdata->charge_current_compensation);
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if (val < 0)
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return val;
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@ -883,6 +884,7 @@ static int smb347_irq_init(struct smb347_charger *smb,
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*/
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static int get_const_charge_current(struct smb347_charger *smb)
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{
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unsigned int id = smb->id;
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int ret, intval;
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unsigned int v;
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@ -898,10 +900,12 @@ static int get_const_charge_current(struct smb347_charger *smb)
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* and we can detect which table to use from bit 5.
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*/
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if (v & 0x20) {
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intval = hw_to_current(fcc_tbl, ARRAY_SIZE(fcc_tbl), v & 7);
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intval = hw_to_current(fcc_tbl[id],
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ARRAY_SIZE(fcc_tbl[id]), v & 7);
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} else {
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v >>= 3;
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intval = hw_to_current(pcc_tbl, ARRAY_SIZE(pcc_tbl), v & 7);
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intval = hw_to_current(pcc_tbl[id],
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ARRAY_SIZE(pcc_tbl[id]), v & 7);
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}
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return intval;
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@ -1349,6 +1353,7 @@ static int smb347_probe(struct i2c_client *client,
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mutex_init(&smb->lock);
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smb->dev = &client->dev;
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smb->id = id->driver_data;
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smb->regmap = devm_regmap_init_i2c(client, &smb347_regmap);
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if (IS_ERR(smb->regmap))
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@ -1413,13 +1418,17 @@ static int smb347_remove(struct i2c_client *client)
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}
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static const struct i2c_device_id smb347_id[] = {
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{ "smb347", 0 },
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{ }
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{ "smb345", SMB345 },
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{ "smb347", SMB347 },
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{ "smb358", SMB358 },
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{ },
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};
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MODULE_DEVICE_TABLE(i2c, smb347_id);
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static const struct of_device_id smb3xx_of_match[] = {
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{ .compatible = "summit,smb345" },
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{ .compatible = "summit,smb347" },
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{ .compatible = "summit,smb358" },
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{ },
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};
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MODULE_DEVICE_TABLE(of, smb3xx_of_match);
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