From aa6f5ffbdba45aa8e19e5048648fc6c7b25376d3 Mon Sep 17 00:00:00 2001 From: merge Date: Thu, 22 Jan 2009 13:55:32 +0000 Subject: MERGE-via-pending-tracking-hist-MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141 pending-tracking-hist top was MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141 / fdf777a63bcb59e0dfd78bfe2c6242e01f6d4eb9 ... parent commitmessage: From: merge MERGE-via-stable-tracking-hist-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040 stable-tracking-hist top was MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040 / 90463bfd2d5a3c8b52f6e6d71024a00e052b0ced ... parent commitmessage: From: merge MERGE-via-mokopatches-tracking-hist-fix-stray-endmenu-patch mokopatches-tracking-hist top was fix-stray-endmenu-patch / 3630e0be570de8057e7f8d2fe501ed353cdf34e6 ... parent commitmessage: From: Andy Green fix-stray-endmenu.patch Signed-off-by: Andy Green --- drivers/power/Kconfig | 27 +- drivers/power/Makefile | 4 +- drivers/power/bq27000_battery.c | 97 +++++- drivers/power/da9030_battery.c | 600 +++++++++++++++++++++++++++++++++++++ drivers/power/ds2760_battery.c | 4 +- drivers/power/pcf50633-charger.c | 256 +++++++++------- drivers/power/power_supply_sysfs.c | 2 +- drivers/power/wm8350_power.c | 532 ++++++++++++++++++++++++++++++++ 8 files changed, 1406 insertions(+), 116 deletions(-) create mode 100644 drivers/power/da9030_battery.c create mode 100644 drivers/power/wm8350_power.c (limited to 'drivers/power') diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig index 64bbd27c197..b7294600843 100644 --- a/drivers/power/Kconfig +++ b/drivers/power/Kconfig @@ -29,6 +29,13 @@ config APM_POWER Say Y here to enable support APM status emulation using battery class devices. +config WM8350_POWER + tristate "WM8350 PMU support" + depends on MFD_WM8350 + help + Say Y here to enable support for the power management unit + provided by the Wolfson Microelectronics WM8350 PMIC. + config BATTERY_DS2760 tristate "DS2760 battery driver (HP iPAQ & others)" select W1 @@ -68,6 +75,20 @@ config BATTERY_BQ27x00 help Say Y here to enable support for batteries with BQ27200(I2C) chip. +config BATTERY_DA9030 + tristate "DA9030 battery driver" + depends on PMIC_DA903X + help + Say Y here to enable support for batteries charger integrated into + DA9030 PMIC. + +config CHARGER_PCF50633 + tristate "NXP PCF50633 MBC" + depends on MFD_PCF50633 + help + Say Y to include support for NXP PCF50633 Main Battery Charger. + +endif # POWER_SUPPLY config BATTERY_BQ27000_HDQ tristate "BQ27000 HDQ battery monitor driver" help @@ -81,11 +102,5 @@ config GTA02_HDQ on the Neo Freerunner. You probably want to select at least BATTERY_BQ27000_HDQ as well -config CHARGER_PCF50633 - tristate "Support for NXP PCF50633 MBC" - depends on MFD_PCF50633 - help - Say Y to include support for NXP PCF50633 Main Battery Charger. - endif # POWER_SUPPLY diff --git a/drivers/power/Makefile b/drivers/power/Makefile index 5cee08b40b5..5c58fea49c6 100644 --- a/drivers/power/Makefile +++ b/drivers/power/Makefile @@ -16,6 +16,7 @@ obj-$(CONFIG_POWER_SUPPLY) += power_supply.o obj-$(CONFIG_PDA_POWER) += pda_power.o obj-$(CONFIG_APM_POWER) += apm_power.o +obj-$(CONFIG_WM8350_POWER) += wm8350_power.o obj-$(CONFIG_BATTERY_DS2760) += ds2760_battery.o obj-$(CONFIG_BATTERY_PMU) += pmu_battery.o @@ -23,9 +24,10 @@ obj-$(CONFIG_BATTERY_OLPC) += olpc_battery.o obj-$(CONFIG_BATTERY_TOSA) += tosa_battery.o obj-$(CONFIG_BATTERY_WM97XX) += wm97xx_battery.o obj-$(CONFIG_BATTERY_BQ27x00) += bq27x00_battery.o +obj-$(CONFIG_BATTERY_DA9030) += da9030_battery.o +obj-$(CONFIG_CHARGER_PCF50633) += pcf50633-charger.o obj-$(CONFIG_BATTERY_PALMTX) += palmtx_battery.o obj-$(CONFIG_BATTERY_BQ27000_HDQ) += bq27000_battery.o obj-$(CONFIG_GTA02_HDQ) += gta02_hdq.o -obj-$(CONFIG_CHARGER_PCF50633) += pcf50633-charger.o diff --git a/drivers/power/bq27000_battery.c b/drivers/power/bq27000_battery.c index dbbcdb379aa..ccd56ea137c 100644 --- a/drivers/power/bq27000_battery.c +++ b/drivers/power/bq27000_battery.c @@ -125,6 +125,8 @@ struct bq27000_bat_regs { struct bq27000_device_info { struct device *dev; struct power_supply bat; + struct power_supply ac; + struct power_supply usb; struct delayed_work work; struct bq27000_platform_data *pdata; @@ -170,7 +172,6 @@ static void bq27000_battery_external_power_changed(struct power_supply *psy) { struct bq27000_device_info *di = container_of(psy, struct bq27000_device_info, bat); - power_supply_changed(&di->bat); dev_dbg(di->dev, "%s\n", __FUNCTION__); } @@ -335,6 +336,54 @@ static void bq27000_battery_work(struct work_struct *work) dev_err(di->dev, "battery service reschedule failed\n"); } +static int ac_get_property(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + int ret = 0; + struct bq27000_device_info *di = container_of(psy, struct bq27000_device_info, ac); + + if (!(di->pdata->hdq_initialized)()) + return -EINVAL; + + switch (psp) { + case POWER_SUPPLY_PROP_ONLINE: + if (di->pdata->get_charger_online_status) + val->intval = (di->pdata->get_charger_online_status)(); + else + return -EINVAL; + break; + default: + ret = -EINVAL; + break; + } + return ret; +} + +static int usb_get_property(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + int ret = 0; + struct bq27000_device_info *di = container_of(psy, struct bq27000_device_info, usb); + + if (!(di->pdata->hdq_initialized)()) + return -EINVAL; + + switch (psp) { + case POWER_SUPPLY_PROP_ONLINE: + if (di->pdata->get_charger_online_status) + val->intval = (di->pdata->get_charger_online_status)(); + else + return -EINVAL; + break; + default: + ret = -EINVAL; + break; + } + return ret; +} + static enum power_supply_property bq27000_battery_props[] = { POWER_SUPPLY_PROP_STATUS, POWER_SUPPLY_PROP_HEALTH, @@ -350,6 +399,10 @@ static enum power_supply_property bq27000_battery_props[] = { POWER_SUPPLY_PROP_ONLINE }; +static enum power_supply_property power_props[] = { + POWER_SUPPLY_PROP_ONLINE, +}; + static int bq27000_battery_probe(struct platform_device *pdev) { int retval = 0; @@ -379,12 +432,36 @@ static int bq27000_battery_probe(struct platform_device *pdev) di->bat.use_for_apm = 1; di->pdata = pdata; + di->ac.name = "ac"; + di->ac.type = POWER_SUPPLY_TYPE_MAINS; + di->ac.properties = power_props; + di->ac.num_properties = ARRAY_SIZE(power_props); + di->ac.get_property = ac_get_property; + + di->usb.name = "usb"; + di->usb.type = POWER_SUPPLY_TYPE_USB; + di->usb.properties = power_props; + di->usb.num_properties = ARRAY_SIZE(power_props); + di->usb.get_property = usb_get_property; + retval = power_supply_register(&pdev->dev, &di->bat); if (retval) { dev_err(di->dev, "failed to register battery\n"); goto batt_failed; } + retval = power_supply_register(&pdev->dev, &di->ac); + if (retval) { + dev_err(di->dev, "failed to register ac\n"); + goto ac_failed; + } + + retval = power_supply_register(&pdev->dev, &di->usb); + if (retval) { + dev_err(di->dev, "failed to register usb\n"); + goto usb_failed; + } + INIT_DELAYED_WORK(&di->work, bq27000_battery_work); if (!schedule_delayed_work(&di->work, 0)) @@ -392,6 +469,10 @@ static int bq27000_battery_probe(struct platform_device *pdev) return 0; +usb_failed: + power_supply_unregister(&di->ac); +ac_failed: + power_supply_unregister(&di->bat); batt_failed: kfree(di); di_alloc_failed: @@ -405,10 +486,24 @@ static int bq27000_battery_remove(struct platform_device *pdev) cancel_delayed_work(&di->work); power_supply_unregister(&di->bat); + power_supply_unregister(&di->ac); + power_supply_unregister(&di->usb); return 0; } +void bq27000_charging_state_change(struct platform_device *pdev) +{ + struct bq27000_device_info *di = platform_get_drvdata(pdev); + + if (!di) + return; + + power_supply_changed(&di->ac); + power_supply_changed(&di->usb); +} +EXPORT_SYMBOL_GPL(bq27000_charging_state_change); + #ifdef CONFIG_PM static int bq27000_battery_suspend(struct platform_device *pdev, diff --git a/drivers/power/da9030_battery.c b/drivers/power/da9030_battery.c new file mode 100644 index 00000000000..1662bb0f23a --- /dev/null +++ b/drivers/power/da9030_battery.c @@ -0,0 +1,600 @@ +/* + * Battery charger driver for Dialog Semiconductor DA9030 + * + * Copyright (C) 2008 Compulab, Ltd. + * Mike Rapoport + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#define DA9030_STATUS_CHDET (1 << 3) + +#define DA9030_FAULT_LOG 0x0a +#define DA9030_FAULT_LOG_OVER_TEMP (1 << 7) +#define DA9030_FAULT_LOG_VBAT_OVER (1 << 4) + +#define DA9030_CHARGE_CONTROL 0x28 +#define DA9030_CHRG_CHARGER_ENABLE (1 << 7) + +#define DA9030_ADC_MAN_CONTROL 0x30 +#define DA9030_ADC_TBATREF_ENABLE (1 << 5) +#define DA9030_ADC_LDO_INT_ENABLE (1 << 4) + +#define DA9030_ADC_AUTO_CONTROL 0x31 +#define DA9030_ADC_TBAT_ENABLE (1 << 5) +#define DA9030_ADC_VBAT_IN_TXON (1 << 4) +#define DA9030_ADC_VCH_ENABLE (1 << 3) +#define DA9030_ADC_ICH_ENABLE (1 << 2) +#define DA9030_ADC_VBAT_ENABLE (1 << 1) +#define DA9030_ADC_AUTO_SLEEP_ENABLE (1 << 0) + +#define DA9030_VBATMON 0x32 +#define DA9030_VBATMONTXON 0x33 +#define DA9030_TBATHIGHP 0x34 +#define DA9030_TBATHIGHN 0x35 +#define DA9030_TBATLOW 0x36 + +#define DA9030_VBAT_RES 0x41 +#define DA9030_VBATMIN_RES 0x42 +#define DA9030_VBATMINTXON_RES 0x43 +#define DA9030_ICHMAX_RES 0x44 +#define DA9030_ICHMIN_RES 0x45 +#define DA9030_ICHAVERAGE_RES 0x46 +#define DA9030_VCHMAX_RES 0x47 +#define DA9030_VCHMIN_RES 0x48 +#define DA9030_TBAT_RES 0x49 + +struct da9030_adc_res { + uint8_t vbat_res; + uint8_t vbatmin_res; + uint8_t vbatmintxon; + uint8_t ichmax_res; + uint8_t ichmin_res; + uint8_t ichaverage_res; + uint8_t vchmax_res; + uint8_t vchmin_res; + uint8_t tbat_res; + uint8_t adc_in4_res; + uint8_t adc_in5_res; +}; + +struct da9030_battery_thresholds { + int tbat_low; + int tbat_high; + int tbat_restart; + + int vbat_low; + int vbat_crit; + int vbat_charge_start; + int vbat_charge_stop; + int vbat_charge_restart; + + int vcharge_min; + int vcharge_max; +}; + +struct da9030_charger { + struct power_supply psy; + + struct device *master; + + struct da9030_adc_res adc; + struct delayed_work work; + unsigned int interval; + + struct power_supply_info *battery_info; + + struct da9030_battery_thresholds thresholds; + + unsigned int charge_milliamp; + unsigned int charge_millivolt; + + /* charger status */ + bool chdet; + uint8_t fault; + int mA; + int mV; + bool is_on; + + struct notifier_block nb; + + /* platform callbacks for battery low and critical events */ + void (*battery_low)(void); + void (*battery_critical)(void); + + struct dentry *debug_file; +}; + +static inline int da9030_reg_to_mV(int reg) +{ + return ((reg * 2650) >> 8) + 2650; +} + +static inline int da9030_millivolt_to_reg(int mV) +{ + return ((mV - 2650) << 8) / 2650; +} + +static inline int da9030_reg_to_mA(int reg) +{ + return ((reg * 24000) >> 8) / 15; +} + +#ifdef CONFIG_DEBUG_FS +static int bat_debug_show(struct seq_file *s, void *data) +{ + struct da9030_charger *charger = s->private; + + seq_printf(s, "charger is %s\n", charger->is_on ? "on" : "off"); + if (charger->chdet) { + seq_printf(s, "iset = %dmA, vset = %dmV\n", + charger->mA, charger->mV); + } + + seq_printf(s, "vbat_res = %d (%dmV)\n", + charger->adc.vbat_res, + da9030_reg_to_mV(charger->adc.vbat_res)); + seq_printf(s, "vbatmin_res = %d (%dmV)\n", + charger->adc.vbatmin_res, + da9030_reg_to_mV(charger->adc.vbatmin_res)); + seq_printf(s, "vbatmintxon = %d (%dmV)\n", + charger->adc.vbatmintxon, + da9030_reg_to_mV(charger->adc.vbatmintxon)); + seq_printf(s, "ichmax_res = %d (%dmA)\n", + charger->adc.ichmax_res, + da9030_reg_to_mV(charger->adc.ichmax_res)); + seq_printf(s, "ichmin_res = %d (%dmA)\n", + charger->adc.ichmin_res, + da9030_reg_to_mA(charger->adc.ichmin_res)); + seq_printf(s, "ichaverage_res = %d (%dmA)\n", + charger->adc.ichaverage_res, + da9030_reg_to_mA(charger->adc.ichaverage_res)); + seq_printf(s, "vchmax_res = %d (%dmV)\n", + charger->adc.vchmax_res, + da9030_reg_to_mA(charger->adc.vchmax_res)); + seq_printf(s, "vchmin_res = %d (%dmV)\n", + charger->adc.vchmin_res, + da9030_reg_to_mV(charger->adc.vchmin_res)); + + return 0; +} + +static int debug_open(struct inode *inode, struct file *file) +{ + return single_open(file, bat_debug_show, inode->i_private); +} + +static const struct file_operations bat_debug_fops = { + .open = debug_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static struct dentry *da9030_bat_create_debugfs(struct da9030_charger *charger) +{ + charger->debug_file = debugfs_create_file("charger", 0666, 0, charger, + &bat_debug_fops); + return charger->debug_file; +} + +static void da9030_bat_remove_debugfs(struct da9030_charger *charger) +{ + debugfs_remove(charger->debug_file); +} +#else +static inline struct dentry *da9030_bat_create_debugfs(struct da9030_charger *charger) +{ + return NULL; +} +static inline void da9030_bat_remove_debugfs(struct da9030_charger *charger) +{ +} +#endif + +static inline void da9030_read_adc(struct da9030_charger *charger, + struct da9030_adc_res *adc) +{ + da903x_reads(charger->master, DA9030_VBAT_RES, + sizeof(*adc), (uint8_t *)adc); +} + +static void da9030_charger_update_state(struct da9030_charger *charger) +{ + uint8_t val; + + da903x_read(charger->master, DA9030_CHARGE_CONTROL, &val); + charger->is_on = (val & DA9030_CHRG_CHARGER_ENABLE) ? 1 : 0; + charger->mA = ((val >> 3) & 0xf) * 100; + charger->mV = (val & 0x7) * 50 + 4000; + + da9030_read_adc(charger, &charger->adc); + da903x_read(charger->master, DA9030_FAULT_LOG, &charger->fault); + charger->chdet = da903x_query_status(charger->master, + DA9030_STATUS_CHDET); +} + +static void da9030_set_charge(struct da9030_charger *charger, int on) +{ + uint8_t val; + + if (on) { + val = DA9030_CHRG_CHARGER_ENABLE; + val |= (charger->charge_milliamp / 100) << 3; + val |= (charger->charge_millivolt - 4000) / 50; + charger->is_on = 1; + } else { + val = 0; + charger->is_on = 0; + } + + da903x_write(charger->master, DA9030_CHARGE_CONTROL, val); +} + +static void da9030_charger_check_state(struct da9030_charger *charger) +{ + da9030_charger_update_state(charger); + + /* we wake or boot with external power on */ + if (!charger->is_on) { + if ((charger->chdet) && + (charger->adc.vbat_res < + charger->thresholds.vbat_charge_start)) { + da9030_set_charge(charger, 1); + } + } else { + if (charger->adc.vbat_res >= + charger->thresholds.vbat_charge_stop) { + da9030_set_charge(charger, 0); + da903x_write(charger->master, DA9030_VBATMON, + charger->thresholds.vbat_charge_restart); + } else if (charger->adc.vbat_res > + charger->thresholds.vbat_low) { + /* we are charging and passed LOW_THRESH, + so upate DA9030 VBAT threshold + */ + da903x_write(charger->master, DA9030_VBATMON, + charger->thresholds.vbat_low); + } + if (charger->adc.vchmax_res > charger->thresholds.vcharge_max || + charger->adc.vchmin_res < charger->thresholds.vcharge_min || + /* Tempreture readings are negative */ + charger->adc.tbat_res < charger->thresholds.tbat_high || + charger->adc.tbat_res > charger->thresholds.tbat_low) { + /* disable charger */ + da9030_set_charge(charger, 0); + } + } +} + +static void da9030_charging_monitor(struct work_struct *work) +{ + struct da9030_charger *charger; + + charger = container_of(work, struct da9030_charger, work.work); + + da9030_charger_check_state(charger); + + /* reschedule for the next time */ + schedule_delayed_work(&charger->work, charger->interval); +} + +static enum power_supply_property da9030_battery_props[] = { + POWER_SUPPLY_PROP_MODEL_NAME, + POWER_SUPPLY_PROP_STATUS, + POWER_SUPPLY_PROP_HEALTH, + POWER_SUPPLY_PROP_TECHNOLOGY, + POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN, + POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, + POWER_SUPPLY_PROP_VOLTAGE_NOW, + POWER_SUPPLY_PROP_CURRENT_AVG, +}; + +static void da9030_battery_check_status(struct da9030_charger *charger, + union power_supply_propval *val) +{ + if (charger->chdet) { + if (charger->is_on) + val->intval = POWER_SUPPLY_STATUS_CHARGING; + else + val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING; + } else { + val->intval = POWER_SUPPLY_STATUS_DISCHARGING; + } +} + +static void da9030_battery_check_health(struct da9030_charger *charger, + union power_supply_propval *val) +{ + if (charger->fault & DA9030_FAULT_LOG_OVER_TEMP) + val->intval = POWER_SUPPLY_HEALTH_OVERHEAT; + else if (charger->fault & DA9030_FAULT_LOG_VBAT_OVER) + val->intval = POWER_SUPPLY_HEALTH_OVERVOLTAGE; + else + val->intval = POWER_SUPPLY_HEALTH_GOOD; +} + +static int da9030_battery_get_property(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + struct da9030_charger *charger; + charger = container_of(psy, struct da9030_charger, psy); + + switch (psp) { + case POWER_SUPPLY_PROP_STATUS: + da9030_battery_check_status(charger, val); + break; + case POWER_SUPPLY_PROP_HEALTH: + da9030_battery_check_health(charger, val); + break; + case POWER_SUPPLY_PROP_TECHNOLOGY: + val->intval = charger->battery_info->technology; + break; + case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN: + val->intval = charger->battery_info->voltage_max_design; + break; + case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: + val->intval = charger->battery_info->voltage_min_design; + break; + case POWER_SUPPLY_PROP_VOLTAGE_NOW: + val->intval = da9030_reg_to_mV(charger->adc.vbat_res) * 1000; + break; + case POWER_SUPPLY_PROP_CURRENT_AVG: + val->intval = + da9030_reg_to_mA(charger->adc.ichaverage_res) * 1000; + break; + case POWER_SUPPLY_PROP_MODEL_NAME: + val->strval = charger->battery_info->name; + break; + default: + break; + } + + return 0; +} + +static void da9030_battery_vbat_event(struct da9030_charger *charger) +{ + da9030_read_adc(charger, &charger->adc); + + if (charger->is_on) + return; + + if (charger->adc.vbat_res < charger->thresholds.vbat_low) { + /* set VBAT threshold for critical */ + da903x_write(charger->master, DA9030_VBATMON, + charger->thresholds.vbat_crit); + if (charger->battery_low) + charger->battery_low(); + } else if (charger->adc.vbat_res < + charger->thresholds.vbat_crit) { + /* notify the system of battery critical */ + if (charger->battery_critical) + charger->battery_critical(); + } +} + +static int da9030_battery_event(struct notifier_block *nb, unsigned long event, + void *data) +{ + struct da9030_charger *charger = + container_of(nb, struct da9030_charger, nb); + int status; + + switch (event) { + case DA9030_EVENT_CHDET: + status = da903x_query_status(charger->master, + DA9030_STATUS_CHDET); + da9030_set_charge(charger, status); + break; + case DA9030_EVENT_VBATMON: + da9030_battery_vbat_event(charger); + break; + case DA9030_EVENT_CHIOVER: + case DA9030_EVENT_TBAT: + da9030_set_charge(charger, 0); + break; + } + + return 0; +} + +static void da9030_battery_convert_thresholds(struct da9030_charger *charger, + struct da9030_battery_info *pdata) +{ + charger->thresholds.tbat_low = pdata->tbat_low; + charger->thresholds.tbat_high = pdata->tbat_high; + charger->thresholds.tbat_restart = pdata->tbat_restart; + + charger->thresholds.vbat_low = + da9030_millivolt_to_reg(pdata->vbat_low); + charger->thresholds.vbat_crit = + da9030_millivolt_to_reg(pdata->vbat_crit); + charger->thresholds.vbat_charge_start = + da9030_millivolt_to_reg(pdata->vbat_charge_start); + charger->thresholds.vbat_charge_stop = + da9030_millivolt_to_reg(pdata->vbat_charge_stop); + charger->thresholds.vbat_charge_restart = + da9030_millivolt_to_reg(pdata->vbat_charge_restart); + + charger->thresholds.vcharge_min = + da9030_millivolt_to_reg(pdata->vcharge_min); + charger->thresholds.vcharge_max = + da9030_millivolt_to_reg(pdata->vcharge_max); +} + +static void da9030_battery_setup_psy(struct da9030_charger *charger) +{ + struct power_supply *psy = &charger->psy; + struct power_supply_info *info = charger->battery_info; + + psy->name = info->name; + psy->use_for_apm = info->use_for_apm; + psy->type = POWER_SUPPLY_TYPE_BATTERY; + psy->get_property = da9030_battery_get_property; + + psy->properties = da9030_battery_props; + psy->num_properties = ARRAY_SIZE(da9030_battery_props); +}; + +static int da9030_battery_charger_init(struct da9030_charger *charger) +{ + char v[5]; + int ret; + + v[0] = v[1] = charger->thresholds.vbat_low; + v[2] = charger->thresholds.tbat_high; + v[3] = charger->thresholds.tbat_restart; + v[4] = charger->thresholds.tbat_low; + + ret = da903x_writes(charger->master, DA9030_VBATMON, 5, v); + if (ret) + return ret; + + /* + * Enable reference voltage supply for ADC from the LDO_INTERNAL + * regulator. Must be set before ADC measurements can be made. + */ + ret = da903x_write(charger->master, DA9030_ADC_MAN_CONTROL, + DA9030_ADC_LDO_INT_ENABLE | + DA9030_ADC_TBATREF_ENABLE); + if (ret) + return ret; + + /* enable auto ADC measuremnts */ + return da903x_write(charger->master, DA9030_ADC_AUTO_CONTROL, + DA9030_ADC_TBAT_ENABLE | DA9030_ADC_VBAT_IN_TXON | + DA9030_ADC_VCH_ENABLE | DA9030_ADC_ICH_ENABLE | + DA9030_ADC_VBAT_ENABLE | + DA9030_ADC_AUTO_SLEEP_ENABLE); +} + +static int da9030_battery_probe(struct platform_device *pdev) +{ + struct da9030_charger *charger; + struct da9030_battery_info *pdata = pdev->dev.platform_data; + int ret; + + if (pdata == NULL) + return -EINVAL; + + if (pdata->charge_milliamp >= 1500 || + pdata->charge_millivolt < 4000 || + pdata->charge_millivolt > 4350) + return -EINVAL; + + charger = kzalloc(sizeof(*charger), GFP_KERNEL); + if (charger == NULL) + return -ENOMEM; + + charger->master = pdev->dev.parent; + + /* 10 seconds between monotor runs unless platfrom defines other + interval */ + charger->interval = msecs_to_jiffies( + (pdata->batmon_interval ? : 10) * 1000); + + charger->charge_milliamp = pdata->charge_milliamp; + charger->charge_millivolt = pdata->charge_millivolt; + charger->battery_info = pdata->battery_info; + charger->battery_low = pdata->battery_low; + charger->battery_critical = pdata->battery_critical; + + da9030_battery_convert_thresholds(charger, pdata); + + ret = da9030_battery_charger_init(charger); + if (ret) + goto err_charger_init; + + INIT_DELAYED_WORK(&charger->work, da9030_charging_monitor); + schedule_delayed_work(&charger->work, charger->interval); + + charger->nb.notifier_call = da9030_battery_event; + ret = da903x_register_notifier(charger->master, &charger->nb, + DA9030_EVENT_CHDET | + DA9030_EVENT_VBATMON | + DA9030_EVENT_CHIOVER | + DA9030_EVENT_TBAT); + if (ret) + goto err_notifier; + + da9030_battery_setup_psy(charger); + ret = power_supply_register(&pdev->dev, &charger->psy); + if (ret) + goto err_ps_register; + + charger->debug_file = da9030_bat_create_debugfs(charger); + platform_set_drvdata(pdev, charger); + return 0; + +err_ps_register: + da903x_unregister_notifier(charger->master, &charger->nb, + DA9030_EVENT_CHDET | DA9030_EVENT_VBATMON | + DA9030_EVENT_CHIOVER | DA9030_EVENT_TBAT); +err_notifier: + cancel_delayed_work(&charger->work); + +err_charger_init: + kfree(charger); + + return ret; +} + +static int da9030_battery_remove(struct platform_device *dev) +{ + struct da9030_charger *charger = platform_get_drvdata(dev); + + da9030_bat_remove_debugfs(charger); + + da903x_unregister_notifier(charger->master, &charger->nb, + DA9030_EVENT_CHDET | DA9030_EVENT_VBATMON | + DA9030_EVENT_CHIOVER | DA9030_EVENT_TBAT); + cancel_delayed_work(&charger->work); + power_supply_unregister(&charger->psy); + + kfree(charger); + + return 0; +} + +static struct platform_driver da903x_battery_driver = { + .driver = { + .name = "da903x-battery", + .owner = THIS_MODULE, + }, + .probe = da9030_battery_probe, + .remove = da9030_battery_remove, +}; + +static int da903x_battery_init(void) +{ + return platform_driver_register(&da903x_battery_driver); +} + +static void da903x_battery_exit(void) +{ + platform_driver_unregister(&da903x_battery_driver); +} + +module_init(da903x_battery_init); +module_exit(da903x_battery_exit); + +MODULE_DESCRIPTION("DA9030 battery charger driver"); +MODULE_AUTHOR("Mike Rapoport, CompuLab"); +MODULE_LICENSE("GPL"); diff --git a/drivers/power/ds2760_battery.c b/drivers/power/ds2760_battery.c index 308ddb201b6..1d768928e0b 100644 --- a/drivers/power/ds2760_battery.c +++ b/drivers/power/ds2760_battery.c @@ -354,7 +354,7 @@ static int ds2760_battery_probe(struct platform_device *pdev) pdata = pdev->dev.platform_data; di->dev = &pdev->dev; di->w1_dev = pdev->dev.parent; - di->bat.name = pdev->dev.bus_id; + di->bat.name = dev_name(&pdev->dev); di->bat.type = POWER_SUPPLY_TYPE_BATTERY; di->bat.properties = ds2760_battery_props; di->bat.num_properties = ARRAY_SIZE(ds2760_battery_props); @@ -371,7 +371,7 @@ static int ds2760_battery_probe(struct platform_device *pdev) } INIT_DELAYED_WORK(&di->monitor_work, ds2760_battery_work); - di->monitor_wqueue = create_singlethread_workqueue(pdev->dev.bus_id); + di->monitor_wqueue = create_singlethread_workqueue(dev_name(&pdev->dev)); if (!di->monitor_wqueue) { retval = -ESRCH; goto workqueue_failed; diff --git a/drivers/power/pcf50633-charger.c b/drivers/power/pcf50633-charger.c index 8ade32aa5d1..ed69a4ca973 100644 --- a/drivers/power/pcf50633-charger.c +++ b/drivers/power/pcf50633-charger.c @@ -1,4 +1,4 @@ -/* Philips PCF50633 Main Battery Charger Driver +/* NXP PCF50633 Main Battery Charger Driver * * (C) 2006-2008 by Openmoko, Inc. * Author: Balaji Rao @@ -7,28 +7,41 @@ * Broken down from monstrous PCF50633 driver mainly by * Harald Welte, Andy Green and Werner Almesberger * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA */ +#include +#include +#include +#include +#include +#include +#include +#include + #include #include -void pcf50633_mbc_usb_curlim_set(struct pcf50633 *pcf, int ma) +struct pcf50633_mbc { + struct pcf50633 *pcf; + + int adapter_active; + int adapter_online; + int usb_active; + int usb_online; + + struct power_supply usb; + struct power_supply adapter; +}; + +int pcf50633_mbc_usb_curlim_set(struct pcf50633 *pcf, int ma) { - int ret; + struct pcf50633_mbc *mbc = platform_get_drvdata(pcf->mbc_pdev); + int ret = 0; u8 bits; int charging_start = 1; u8 mbcs2, chgmod; @@ -69,36 +82,56 @@ void pcf50633_mbc_usb_curlim_set(struct pcf50633 *pcf, int ma) } EXPORT_SYMBOL_GPL(pcf50633_mbc_usb_curlim_set); -static const char *chgmode_names[] = { - [PCF50633_MBCS2_MBC_PLAY] = "play-only", - [PCF50633_MBCS2_MBC_USB_PRE] = "pre", - [PCF50633_MBCS2_MBC_ADP_PRE] = "pre", - [PCF50633_MBCS2_MBC_USB_PRE_WAIT] = "pre-wait", - [PCF50633_MBCS2_MBC_ADP_PRE_WAIT] = "pre-wait", - [PCF50633_MBCS2_MBC_USB_FAST] = "fast", - [PCF50633_MBCS2_MBC_ADP_FAST] = "fast", - [PCF50633_MBCS2_MBC_USB_FAST_WAIT] = "fast-wait", - [PCF50633_MBCS2_MBC_ADP_FAST_WAIT] = "fast-wait", - [PCF50633_MBCS2_MBC_BAT_FULL] = "bat-full", -}; +int pcf50633_mbc_get_status(struct pcf50633 *pcf) +{ + struct pcf50633_mbc *mbc = platform_get_drvdata(pcf->mbc_pdev); + int status = 0; + + if (mbc->usb_online) + status |= PCF50633_MBC_USB_ONLINE; + if (mbc->usb_active) + status |= PCF50633_MBC_USB_ACTIVE; + if (mbc->adapter_online) + status |= PCF50633_MBC_ADAPTER_ONLINE; + if (mbc->adapter_active) + status |= PCF50633_MBC_ADAPTER_ACTIVE; + + return status; +} +EXPORT_SYMBOL_GPL(pcf50633_mbc_get_status); + +void pcf50633_mbc_set_status(struct pcf50633 *pcf, int what, int status) +{ + struct pcf50633_mbc *mbc = platform_get_drvdata(pcf->mbc_pdev); + + if (what & PCF50633_MBC_USB_ONLINE) + mbc->usb_online = !!status; + if (what & PCF50633_MBC_USB_ACTIVE) + mbc->usb_active = !!status; + if (what & PCF50633_MBC_ADAPTER_ONLINE) + mbc->adapter_online = !!status; + if (what & PCF50633_MBC_ADAPTER_ACTIVE) + mbc->adapter_active = !!status; +} +EXPORT_SYMBOL_GPL(pcf50633_mbc_set_status); -static ssize_t show_chgmode(struct device *dev, struct device_attribute *attr, - char *buf) +static ssize_t +show_chgmode(struct device *dev, struct device_attribute *attr, char *buf) { - struct pcf50633 *pcf = dev_get_drvdata(dev); + struct pcf50633_mbc *mbc = dev_get_drvdata(dev); - u8 mbcs2 = pcf50633_reg_read(pcf, PCF50633_REG_MBCS2); + u8 mbcs2 = pcf50633_reg_read(mbc->pcf, PCF50633_REG_MBCS2); u8 chgmod = (mbcs2 & PCF50633_MBCS2_MBC_MASK); - return sprintf(buf, "%s %d\n", chgmode_names[chgmod], chgmod); + return sprintf(buf, "%d\n", chgmod); } -static DEVICE_ATTR(chgmode, S_IRUGO | S_IWUSR, show_chgmode, NULL); +static DEVICE_ATTR(chgmode, S_IRUGO, show_chgmode, NULL); -static ssize_t show_usblim(struct device *dev, struct device_attribute *attr, - char *buf) +static ssize_t +show_usblim(struct device *dev, struct device_attribute *attr, char *buf) { - struct pcf50633 *pcf = dev_get_drvdata(dev); - u8 usblim = pcf50633_reg_read(pcf, PCF50633_REG_MBCC7) & + struct pcf50633_mbc *mbc = dev_get_drvdata(dev); + u8 usblim = pcf50633_reg_read(mbc->pcf, PCF50633_REG_MBCC7) & PCF50633_MBCC7_USB_MASK; unsigned int ma; @@ -113,34 +146,34 @@ static ssize_t show_usblim(struct device *dev, struct device_attribute *attr, return sprintf(buf, "%u\n", ma); } -static DEVICE_ATTR(usb_curlim, S_IRUGO | S_IWUSR, show_usblim, NULL); -static ssize_t force_usb_limit_dangerous(struct device *dev, - struct device_attribute *attr, const char *buf, size_t count) +static ssize_t set_usblim(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) { - struct pcf50633 *pcf = dev_get_drvdata(dev); + struct pcf50633_mbc *mbc = dev_get_drvdata(dev); unsigned long ma; + int ret; - strict_strtoul(buf, 10, &ma); + ret = strict_strtoul(buf, 10, &ma); + if (ret) + return -EINVAL; - pcf50633_mbc_usb_curlim_set(pcf, ma); + pcf50633_mbc_usb_curlim_set(mbc->pcf, ma); return count; } -static DEVICE_ATTR(force_usb_limit_dangerous, 0600, - NULL, force_usb_limit_dangerous); +static DEVICE_ATTR(usb_curlim, S_IRUGO | S_IWUSR, show_usblim, set_usblim); -static struct attribute *mbc_sysfs_entries[] = { +static struct attribute *pcf50633_mbc_sysfs_entries[] = { &dev_attr_chgmode.attr, &dev_attr_usb_curlim.attr, - &dev_attr_force_usb_limit_dangerous.attr, NULL, }; static struct attribute_group mbc_attr_group = { .name = NULL, /* put in device directory */ - .attrs = mbc_sysfs_entries, + .attrs = pcf50633_mbc_sysfs_entries, }; /* MBC state machine switches into charging mode when the battery voltage @@ -181,14 +214,12 @@ static void pcf50633_mbc_charging_restart(struct work_struct *work) static void pcf50633_mbc_irq_handler(struct pcf50633 *pcf, int irq, void *data) { - struct pcf50633_mbc *mbc; - - mbc = &pcf->mbc; + struct pcf50633_mbc *mbc = data; /* USB */ - if (irq == PCF50633_IRQ_USBINS) + if (irq == PCF50633_IRQ_USBINS) { mbc->usb_online = 1; - else if (irq == PCF50633_IRQ_USBREM) { + } else if (irq == PCF50633_IRQ_USBREM) { mbc->usb_online = 0; mbc->usb_active = 0; pcf50633_mbc_usb_curlim_set(pcf, 0); @@ -197,8 +228,8 @@ static void pcf50633_mbc_irq_handler(struct pcf50633 *pcf, int irq, void *data) /* Adapter */ if (irq == PCF50633_IRQ_ADPINS) { - pcf->mbc.adapter_online = 1; - pcf->mbc.adapter_active = 1; + mbc->adapter_online = 1; + mbc->adapter_active = 1; } else if (irq == PCF50633_IRQ_ADPREM) { mbc->adapter_online = 0; mbc->adapter_active = 0; @@ -218,16 +249,16 @@ static void pcf50633_mbc_irq_handler(struct pcf50633 *pcf, int irq, void *data) power_supply_changed(&mbc->usb); power_supply_changed(&mbc->adapter); - if (pcf->pdata->mbc_event_callback) - pcf->pdata->mbc_event_callback(pcf, irq); + if (mbc->pcf->pdata->mbc_event_callback) + mbc->pcf->pdata->mbc_event_callback(mbc->pcf, irq); } static int adapter_get_property(struct power_supply *psy, enum power_supply_property psp, union power_supply_propval *val) { - int ret = 0; struct pcf50633_mbc *mbc = container_of(psy, struct pcf50633_mbc, usb); + int ret = 0; switch (psp) { case POWER_SUPPLY_PROP_ONLINE: @@ -244,8 +275,8 @@ static int usb_get_property(struct power_supply *psy, enum power_supply_property psp, union power_supply_propval *val) { - int ret = 0; struct pcf50633_mbc *mbc = container_of(psy, struct pcf50633_mbc, usb); + int ret = 0; struct pcf50633 *pcf = container_of(mbc, struct pcf50633, mbc); u8 usblim = pcf50633_reg_read(pcf, PCF50633_REG_MBCC7) & @@ -288,59 +319,57 @@ static enum power_supply_property power_props[] = { POWER_SUPPLY_PROP_ONLINE, }; -int __init pcf50633_mbc_probe(struct platform_device *pdev) +static const u8 mbc_irq_handlers[] = { + PCF50633_IRQ_ADPINS, + PCF50633_IRQ_ADPREM, + PCF50633_IRQ_USBINS, + PCF50633_IRQ_USBREM, + PCF50633_IRQ_BATFULL, + PCF50633_IRQ_CHGHALT, + PCF50633_IRQ_THLIMON, + PCF50633_IRQ_THLIMOFF, + PCF50633_IRQ_USBLIMON, + PCF50633_IRQ_USBLIMOFF, + PCF50633_IRQ_LOWSYS, + PCF50633_IRQ_LOWBAT, +}; + +static int __devinit pcf50633_mbc_probe(struct platform_device *pdev) { - struct pcf50633 *pcf; struct pcf50633_mbc *mbc; + struct pcf50633_subdev_pdata *pdata = pdev->dev.platform_data; int ret; u8 mbcs1; + int i; + + mbc = kzalloc(sizeof(*mbc), GFP_KERNEL); + if (!mbc) + return -ENOMEM; - pcf = platform_get_drvdata(pdev); - mbc = &pcf->mbc; + platform_set_drvdata(pdev, mbc); + mbc->pcf = pdata->pcf; /* Set up IRQ handlers */ - pcf->irq_handler[PCF50633_IRQ_ADPINS].handler = - pcf50633_mbc_irq_handler; - pcf->irq_handler[PCF50633_IRQ_ADPREM].handler = - pcf50633_mbc_irq_handler; - pcf->irq_handler[PCF50633_IRQ_USBINS].handler = - pcf50633_mbc_irq_handler; - pcf->irq_handler[PCF50633_IRQ_USBREM].handler = - pcf50633_mbc_irq_handler; - pcf->irq_handler[PCF50633_IRQ_BATFULL].handler = - pcf50633_mbc_irq_handler; - pcf->irq_handler[PCF50633_IRQ_CHGHALT].handler = - pcf50633_mbc_irq_handler; - pcf->irq_handler[PCF50633_IRQ_THLIMON].handler = - pcf50633_mbc_irq_handler; - pcf->irq_handler[PCF50633_IRQ_THLIMOFF].handler = - pcf50633_mbc_irq_handler; - pcf->irq_handler[PCF50633_IRQ_USBLIMON].handler = - pcf50633_mbc_irq_handler; - pcf->irq_handler[PCF50633_IRQ_USBLIMOFF].handler = - pcf50633_mbc_irq_handler; - pcf->irq_handler[PCF50633_IRQ_LOWSYS].handler = - pcf50633_mbc_irq_handler; - pcf->irq_handler[PCF50633_IRQ_LOWBAT].handler = - pcf50633_mbc_irq_handler; + for (i = 0; i < ARRAY_SIZE(mbc_irq_handlers); i++) + pcf50633_register_irq(mbc->pcf, mbc_irq_handlers[i], + pcf50633_mbc_irq_handler, mbc); /* Create power supplies */ - mbc->adapter.name = "adapter"; mbc->adapter.type = POWER_SUPPLY_TYPE_MAINS; mbc->adapter.properties = power_props; mbc->adapter.num_properties = ARRAY_SIZE(power_props); mbc->adapter.get_property = &adapter_get_property; - mbc->adapter.supplied_to = pcf->pdata->batteries; - mbc->adapter.num_supplicants = pcf->pdata->num_batteries; + mbc->adapter.supplied_to = mbc->pcf->pdata->batteries; + mbc->adapter.num_supplicants = mbc->pcf->pdata->num_batteries; mbc->usb.name = "usb"; mbc->usb.type = POWER_SUPPLY_TYPE_USB; mbc->usb.properties = power_props; mbc->usb.num_properties = ARRAY_SIZE(power_props); mbc->usb.get_property = usb_get_property; - mbc->usb.supplied_to = pcf->pdata->batteries; - mbc->usb.num_supplicants = pcf->pdata->num_batteries; + mbc->usb.supplied_to = mbc->pcf->pdata->batteries; + mbc->usb.num_supplicants = mbc->pcf->pdata->num_batteries; mbc->ac.name = "ac"; mbc->ac.type = POWER_SUPPLY_TYPE_MAINS; @@ -354,16 +383,25 @@ int __init pcf50633_mbc_probe(struct platform_device *pdev) pcf50633_mbc_charging_restart); ret = power_supply_register(&pdev->dev, &mbc->adapter); - if (ret) - dev_err(pcf->dev, "failed to register adapter\n"); + if (ret) { + dev_err(mbc->pcf->dev, "failed to register adapter\n"); + kfree(mbc); + return ret; + } ret = power_supply_register(&pdev->dev, &mbc->usb); - if (ret) - dev_err(pcf->dev, "failed to register usb\n"); + if (ret) { + dev_err(mbc->pcf->dev, "failed to register usb\n"); + power_supply_unregister(&mbc->adapter); + kfree(mbc); + return ret; + } - ret = power_supply_register(&pdev->dev, &mbc->ac); - if (ret) - dev_err(pcf->dev, "failed to register ac\n"); + mbcs1 = pcf50633_reg_read(mbc->pcf, PCF50633_REG_MBCS1); + if (mbcs1 & PCF50633_MBCS1_USBPRES) + pcf50633_mbc_irq_handler(PCF50633_IRQ_USBINS, mbc); + if (mbcs1 & PCF50633_MBCS1_ADAPTPRES) + pcf50633_mbc_irq_handler(PCF50633_IRQ_ADPINS, mbc); mbcs1 = pcf50633_reg_read(pcf, PCF50633_REG_MBCS1); if (mbcs1 & 0x01) @@ -382,14 +420,22 @@ int __init pcf50633_mbc_probe(struct platform_device *pdev) static int __devexit pcf50633_mbc_remove(struct platform_device *pdev) { - struct pcf50633 *pcf; + struct pcf50633_mbc *mbc = platform_get_drvdata(pdev); + int i; + + /* Remove IRQ handlers */ + for (i = 0; i < ARRAY_SIZE(mbc_irq_handlers); i++) + pcf50633_free_irq(mbc->pcf, mbc_irq_handlers[i]); + + power_supply_unregister(&mbc->usb); + power_supply_unregister(&mbc->adapter); - pcf = platform_get_drvdata(pdev); + kfree(mbc); return 0; } -struct platform_driver pcf50633_mbc_driver = { +static struct platform_driver pcf50633_mbc_driver = { .driver = { .name = "pcf50633-mbc", }, @@ -399,13 +445,13 @@ struct platform_driver pcf50633_mbc_driver = { static int __init pcf50633_mbc_init(void) { - return platform_driver_register(&pcf50633_mbc_driver); + return platform_driver_register(&pcf50633_mbc_driver); } module_init(pcf50633_mbc_init); static void __exit pcf50633_mbc_exit(void) { - platform_driver_unregister(&pcf50633_mbc_driver); + platform_driver_unregister(&pcf50633_mbc_driver); } module_exit(pcf50633_mbc_exit); diff --git a/drivers/power/power_supply_sysfs.c b/drivers/power/power_supply_sysfs.c index 23ae8460f5c..ac01e06817f 100644 --- a/drivers/power/power_supply_sysfs.c +++ b/drivers/power/power_supply_sysfs.c @@ -45,7 +45,7 @@ static ssize_t power_supply_show_property(struct device *dev, }; static char *health_text[] = { "Unknown", "Good", "Overheat", "Dead", "Over voltage", - "Unspecified failure" + "Unspecified failure", "Cold", }; static char *technology_text[] = { "Unknown", "NiMH", "Li-ion", "Li-poly", "LiFe", "NiCd", diff --git a/drivers/power/wm8350_power.c b/drivers/power/wm8350_power.c new file mode 100644 index 00000000000..1b16bf343f2 --- /dev/null +++ b/drivers/power/wm8350_power.c @@ -0,0 +1,532 @@ +/* + * Battery driver for wm8350 PMIC + * + * Copyright 2007, 2008 Wolfson Microelectronics PLC. + * + * Based on OLPC Battery Driver + * + * Copyright 2006 David Woodhouse + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include + +static int wm8350_read_battery_uvolts(struct wm8350 *wm8350) +{ + return wm8350_read_auxadc(wm8350, WM8350_AUXADC_BATT, 0, 0) + * WM8350_AUX_COEFF; +} + +static int wm8350_read_line_uvolts(struct wm8350 *wm8350) +{ + return wm8350_read_auxadc(wm8350, WM8350_AUXADC_LINE, 0, 0) + * WM8350_AUX_COEFF; +} + +static int wm8350_read_usb_uvolts(struct wm8350 *wm8350) +{ + return wm8350_read_auxadc(wm8350, WM8350_AUXADC_USB, 0, 0) + * WM8350_AUX_COEFF; +} + +#define WM8350_BATT_SUPPLY 1 +#define WM8350_USB_SUPPLY 2 +#define WM8350_LINE_SUPPLY 4 + +static inline int wm8350_charge_time_min(struct wm8350 *wm8350, int min) +{ + if (!wm8350->power.rev_g_coeff) + return (((min - 30) / 15) & 0xf) << 8; + else + return (((min - 30) / 30) & 0xf) << 8; +} + +static int wm8350_get_supplies(struct wm8350 *wm8350) +{ + u16 sm, ov, co, chrg; + int supplies = 0; + + sm = wm8350_reg_read(wm8350, WM8350_STATE_MACHINE_STATUS); + ov = wm8350_reg_read(wm8350, WM8350_MISC_OVERRIDES); + co = wm8350_reg_read(wm8350, WM8350_COMPARATOR_OVERRIDES); + chrg = wm8350_reg_read(wm8350, WM8350_BATTERY_CHARGER_CONTROL_2); + + /* USB_SM */ + sm = (sm & WM8350_USB_SM_MASK) >> WM8350_USB_SM_SHIFT; + + /* CHG_ISEL */ + chrg &= WM8350_CHG_ISEL_MASK; + + /* If the USB state machine is active then we're using that with or + * without battery, otherwise check for wall supply */ + if (((sm == WM8350_USB_SM_100_SLV) || + (sm == WM8350_USB_SM_500_SLV) || + (sm == WM8350_USB_SM_STDBY_SLV)) + && !(ov & WM8350_USB_LIMIT_OVRDE)) + supplies = WM8350_USB_SUPPLY; + else if (((sm == WM8350_USB_SM_100_SLV) || + (sm == WM8350_USB_SM_500_SLV) || + (sm == WM8350_USB_SM_STDBY_SLV)) + && (ov & WM8350_USB_LIMIT_OVRDE) && (chrg == 0)) + supplies = WM8350_USB_SUPPLY | WM8350_BATT_SUPPLY; + else if (co & WM8350_WALL_FB_OVRDE) + supplies = WM8350_LINE_SUPPLY; + else + supplies = WM8350_BATT_SUPPLY; + + return supplies; +} + +static int wm8350_charger_config(struct wm8350 *wm8350, + struct wm8350_charger_policy *policy) +{ + u16 reg, eoc_mA, fast_limit_mA; + + if (!policy) { + dev_warn(wm8350->dev, + "No charger policy, charger not configured.\n"); + return -EINVAL; + } + + /* make sure USB fast charge current is not > 500mA */ + if (policy->fast_limit_USB_mA > 500) { + dev_err(wm8350->dev, "USB fast charge > 500mA\n"); + return -EINVAL; + } + + eoc_mA = WM8350_CHG_EOC_mA(policy->eoc_mA); + + wm8350_reg_unlock(wm8350); + + reg = wm8350_reg_read(wm8350, WM8350_BATTERY_CHARGER_CONTROL_1) + & WM8350_CHG_ENA_R168; + wm8350_reg_write(wm8350, WM8350_BATTERY_CHARGER_CONTROL_1, + reg | eoc_mA | policy->trickle_start_mV | + WM8350_CHG_TRICKLE_TEMP_CHOKE | + WM8350_CHG_TRICKLE_USB_CHOKE | + WM8350_CHG_FAST_USB_THROTTLE); + + if (wm8350_get_supplies(wm8350) & WM8350_USB_SUPPLY) { + fast_limit_mA = + WM8350_CHG_FAST_LIMIT_mA(policy->fast_limit_USB_mA); + wm8350_reg_write(wm8350, WM8350_BATTERY_CHARGER_CONTROL_2, + policy->charge_mV | policy->trickle_charge_USB_mA | + fast_limit_mA | wm8350_charge_time_min(wm8350, + policy->charge_timeout)); + + } else { + fast_limit_mA = + WM8350_CHG_FAST_LIMIT_mA(policy->fast_limit_mA); + wm8350_reg_write(wm8350, WM8350_BATTERY_CHARGER_CONTROL_2, + policy->charge_mV | policy->trickle_charge_mA | + fast_limit_mA | wm8350_charge_time_min(wm8350, + policy->charge_timeout)); + } + + wm8350_reg_lock(wm8350); + return 0; +} + +static int wm8350_batt_status(struct wm8350 *wm8350) +{ + u16 state; + + state = wm8350_reg_read(wm8350, WM8350_BATTERY_CHARGER_CONTROL_2); + state &= WM8350_CHG_STS_MASK; + + switch (state) { + case WM8350_CHG_STS_OFF: + return POWER_SUPPLY_STATUS_DISCHARGING; + + case WM8350_CHG_STS_TRICKLE: + case WM8350_CHG_STS_FAST: + return POWER_SUPPLY_STATUS_CHARGING; + + default: + return POWER_SUPPLY_STATUS_UNKNOWN; + } +} + +static ssize_t charger_state_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct wm8350 *wm8350 = dev_get_drvdata(dev); + char *charge; + int state; + + state = wm8350_reg_read(wm8350, WM8350_BATTERY_CHARGER_CONTROL_2) & + WM8350_CHG_STS_MASK; + switch (state) { + case WM8350_CHG_STS_OFF: + charge = "Charger Off"; + break; + case WM8350_CHG_STS_TRICKLE: + charge = "Trickle Charging"; + break; + case WM8350_CHG_STS_FAST: + charge = "Fast Charging"; + break; + default: + return 0; + } + + return sprintf(buf, "%s\n", charge); +} + +static DEVICE_ATTR(charger_state, 0444, charger_state_show, NULL); + +static void wm8350_charger_handler(struct wm8350 *wm8350, int irq, void *data) +{ + struct wm8350_power *power = &wm8350->power; + struct wm8350_charger_policy *policy = power->policy; + + switch (irq) { + case WM8350_IRQ_CHG_BAT_FAIL: + dev_err(wm8350->dev, "battery failed\n"); + break; + case WM8350_IRQ_CHG_TO: + dev_err(wm8350->dev, "charger timeout\n"); + power_supply_changed(&power->battery); + break; + + case WM8350_IRQ_CHG_BAT_HOT: + case WM8350_IRQ_CHG_BAT_COLD: + case WM8350_IRQ_CHG_START: + case WM8350_IRQ_CHG_END: + power_supply_changed(&power->battery); + break; + + case WM8350_IRQ_CHG_FAST_RDY: + dev_dbg(wm8350->dev, "fast charger ready\n"); + wm8350_charger_config(wm8350, policy); + wm8350_reg_unlock(wm8350); + wm8350_set_bits(wm8350, WM8350_BATTERY_CHARGER_CONTROL_1, + WM8350_CHG_FAST); + wm8350_reg_lock(wm8350); + break; + + case WM8350_IRQ_CHG_VBATT_LT_3P9: + dev_warn(wm8350->dev, "battery < 3.9V\n"); + break; + case WM8350_IRQ_CHG_VBATT_LT_3P1: + dev_warn(wm8350->dev, "battery < 3.1V\n"); + break; + case WM8350_IRQ_CHG_VBATT_LT_2P85: + dev_warn(wm8350->dev, "battery < 2.85V\n"); + break; + + /* Supply change. We will overnotify but it should do + * no harm. */ + case WM8350_IRQ_EXT_USB_FB: + case WM8350_IRQ_EXT_WALL_FB: + wm8350_charger_config(wm8350, policy); + case WM8350_IRQ_EXT_BAT_FB: /* Fall through */ + power_supply_changed(&power->battery); + power_supply_changed(&power->usb); + power_supply_changed(&power->ac); + break; + + default: + dev_err(wm8350->dev, "Unknown interrupt %d\n", irq); + } +} + +/********************************************************************* + * AC Power + *********************************************************************/ +static int wm8350_ac_get_prop(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + struct wm8350 *wm8350 = dev_get_drvdata(psy->dev->parent); + int ret = 0; + + switch (psp) { + case POWER_SUPPLY_PROP_ONLINE: + val->intval = !!(wm8350_get_supplies(wm8350) & + WM8350_LINE_SUPPLY); + break; + case POWER_SUPPLY_PROP_VOLTAGE_NOW: + val->intval = wm8350_read_line_uvolts(wm8350); + break; + default: + ret = -EINVAL; + break; + } + return ret; +} + +static enum power_supply_property wm8350_ac_props[] = { + POWER_SUPPLY_PROP_ONLINE, + POWER_SUPPLY_PROP_VOLTAGE_NOW, +}; + +/********************************************************************* + * USB Power + *********************************************************************/ +static int wm8350_usb_get_prop(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + struct wm8350 *wm8350 = dev_get_drvdata(psy->dev->parent); + int ret = 0; + + switch (psp) { + case POWER_SUPPLY_PROP_ONLINE: + val->intval = !!(wm8350_get_supplies(wm8350) & + WM8350_USB_SUPPLY); + break; + case POWER_SUPPLY_PROP_VOLTAGE_NOW: + val->intval = wm8350_read_usb_uvolts(wm8350); + break; + default: + ret = -EINVAL; + break; + } + return ret; +} + +static enum power_supply_property wm8350_usb_props[] = { + POWER_SUPPLY_PROP_ONLINE, + POWER_SUPPLY_PROP_VOLTAGE_NOW, +}; + +/********************************************************************* + * Battery properties + *********************************************************************/ + +static int wm8350_bat_check_health(struct wm8350 *wm8350) +{ + u16 reg; + + if (wm8350_read_battery_uvolts(wm8350) < 2850000) + return POWER_SUPPLY_HEALTH_UNSPEC_FAILURE; + + reg = wm8350_reg_read(wm8350, WM8350_CHARGER_OVERRIDES); + if (reg & WM8350_CHG_BATT_HOT_OVRDE) + return POWER_SUPPLY_HEALTH_OVERHEAT; + + if (reg & WM8350_CHG_BATT_COLD_OVRDE) + return POWER_SUPPLY_HEALTH_COLD; + + return POWER_SUPPLY_HEALTH_GOOD; +} + +static int wm8350_bat_get_property(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + struct wm8350 *wm8350 = dev_get_drvdata(psy->dev->parent); + int ret = 0; + + switch (psp) { + case POWER_SUPPLY_PROP_STATUS: + val->intval = wm8350_batt_status(wm8350); + break; + case POWER_SUPPLY_PROP_ONLINE: + val->intval = !!(wm8350_get_supplies(wm8350) & + WM8350_BATT_SUPPLY); + break; + case POWER_SUPPLY_PROP_VOLTAGE_NOW: + val->intval = wm8350_read_battery_uvolts(wm8350); + break; + case POWER_SUPPLY_PROP_HEALTH: + val->intval = wm8350_bat_check_health(wm8350); + break; + default: + ret = -EINVAL; + break; + } + + return ret; +} + +static enum power_supply_property wm8350_bat_props[] = { + POWER_SUPPLY_PROP_STATUS, + POWER_SUPPLY_PROP_ONLINE, + POWER_SUPPLY_PROP_VOLTAGE_NOW, + POWER_SUPPLY_PROP_HEALTH, +}; + +/********************************************************************* + * Initialisation + *********************************************************************/ + +static void wm8350_init_charger(struct wm8350 *wm8350) +{ + /* register our interest in charger events */ + wm8350_register_irq(wm8350, WM8350_IRQ_CHG_BAT_HOT, + wm8350_charger_handler, NULL); + wm8350_unmask_irq(wm8350, WM8350_IRQ_CHG_BAT_HOT); + wm8350_register_irq(wm8350, WM8350_IRQ_CHG_BAT_COLD, + wm8350_charger_handler, NULL); + wm8350_unmask_irq(wm8350, WM8350_IRQ_CHG_BAT_COLD); + wm8350_register_irq(wm8350, WM8350_IRQ_CHG_BAT_FAIL, + wm8350_charger_handler, NULL); + wm8350_unmask_irq(wm8350, WM8350_IRQ_CHG_BAT_FAIL); + wm8350_register_irq(wm8350, WM8350_IRQ_CHG_TO, + wm8350_charger_handler, NULL); + wm8350_unmask_irq(wm8350, WM8350_IRQ_CHG_TO); + wm8350_register_irq(wm8350, WM8350_IRQ_CHG_END, + wm8350_charger_handler, NULL); + wm8350_unmask_irq(wm8350, WM8350_IRQ_CHG_END); + wm8350_register_irq(wm8350, WM8350_IRQ_CHG_START, + wm8350_charger_handler, NULL); + wm8350_unmask_irq(wm8350, WM8350_IRQ_CHG_START); + wm8350_register_irq(wm8350, WM8350_IRQ_CHG_FAST_RDY, + wm8350_charger_handler, NULL); + wm8350_unmask_irq(wm8350, WM8350_IRQ_CHG_FAST_RDY); + wm8350_register_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_3P9, + wm8350_charger_handler, NULL); + wm8350_unmask_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_3P9); + wm8350_register_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_3P1, + wm8350_charger_handler, NULL); + wm8350_unmask_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_3P1); + wm8350_register_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_2P85, + wm8350_charger_handler, NULL); + wm8350_unmask_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_2P85); + + /* and supply change events */ + wm8350_register_irq(wm8350, WM8350_IRQ_EXT_USB_FB, + wm8350_charger_handler, NULL); + wm8350_unmask_irq(wm8350, WM8350_IRQ_EXT_USB_FB); + wm8350_register_irq(wm8350, WM8350_IRQ_EXT_WALL_FB, + wm8350_charger_handler, NULL); + wm8350_unmask_irq(wm8350, WM8350_IRQ_EXT_WALL_FB); + wm8350_register_irq(wm8350, WM8350_IRQ_EXT_BAT_FB, + wm8350_charger_handler, NULL); + wm8350_unmask_irq(wm8350, WM8350_IRQ_EXT_BAT_FB); +} + +static void free_charger_irq(struct wm8350 *wm8350) +{ + wm8350_mask_irq(wm8350, WM8350_IRQ_CHG_BAT_HOT); + wm8350_free_irq(wm8350, WM8350_IRQ_CHG_BAT_HOT); + wm8350_mask_irq(wm8350, WM8350_IRQ_CHG_BAT_COLD); + wm8350_free_irq(wm8350, WM8350_IRQ_CHG_BAT_COLD); + wm8350_mask_irq(wm8350, WM8350_IRQ_CHG_BAT_FAIL); + wm8350_free_irq(wm8350, WM8350_IRQ_CHG_BAT_FAIL); + wm8350_mask_irq(wm8350, WM8350_IRQ_CHG_TO); + wm8350_free_irq(wm8350, WM8350_IRQ_CHG_TO); + wm8350_mask_irq(wm8350, WM8350_IRQ_CHG_END); + wm8350_free_irq(wm8350, WM8350_IRQ_CHG_END); + wm8350_mask_irq(wm8350, WM8350_IRQ_CHG_START); + wm8350_free_irq(wm8350, WM8350_IRQ_CHG_START); + wm8350_mask_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_3P9); + wm8350_free_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_3P9); + wm8350_mask_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_3P1); + wm8350_free_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_3P1); + wm8350_mask_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_2P85); + wm8350_free_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_2P85); + wm8350_mask_irq(wm8350, WM8350_IRQ_EXT_USB_FB); + wm8350_free_irq(wm8350, WM8350_IRQ_EXT_USB_FB); + wm8350_mask_irq(wm8350, WM8350_IRQ_EXT_WALL_FB); + wm8350_free_irq(wm8350, WM8350_IRQ_EXT_WALL_FB); + wm8350_mask_irq(wm8350, WM8350_IRQ_EXT_BAT_FB); + wm8350_free_irq(wm8350, WM8350_IRQ_EXT_BAT_FB); +} + +static __devinit int wm8350_power_probe(struct platform_device *pdev) +{ + struct wm8350 *wm8350 = platform_get_drvdata(pdev); + struct wm8350_power *power = &wm8350->power; + struct wm8350_charger_policy *policy = power->policy; + struct power_supply *usb = &power->usb; + struct power_supply *battery = &power->battery; + struct power_supply *ac = &power->ac; + int ret; + + ac->name = "wm8350-ac"; + ac->type = POWER_SUPPLY_TYPE_MAINS; + ac->properties = wm8350_ac_props; + ac->num_properties = ARRAY_SIZE(wm8350_ac_props); + ac->get_property = wm8350_ac_get_prop; + ret = power_supply_register(&pdev->dev, ac); + if (ret) + return ret; + + battery->name = "wm8350-battery"; + battery->properties = wm8350_bat_props; + battery->num_properties = ARRAY_SIZE(wm8350_bat_props); + battery->get_property = wm8350_bat_get_property; + battery->use_for_apm = 1; + ret = power_supply_register(&pdev->dev, battery); + if (ret) + goto battery_failed; + + usb->name = "wm8350-usb", + usb->type = POWER_SUPPLY_TYPE_USB; + usb->properties = wm8350_usb_props; + usb->num_properties = ARRAY_SIZE(wm8350_usb_props); + usb->get_property = wm8350_usb_get_prop; + ret = power_supply_register(&pdev->dev, usb); + if (ret) + goto usb_failed; + + ret = device_create_file(&pdev->dev, &dev_attr_charger_state); + if (ret < 0) + dev_warn(wm8350->dev, "failed to add charge sysfs: %d\n", ret); + ret = 0; + + wm8350_init_charger(wm8350); + if (wm8350_charger_config(wm8350, policy) == 0) { + wm8350_reg_unlock(wm8350); + wm8350_set_bits(wm8350, WM8350_POWER_MGMT_5, WM8350_CHG_ENA); + wm8350_reg_lock(wm8350); + } + + return ret; + +usb_failed: + power_supply_unregister(battery); +battery_failed: + power_supply_unregister(ac); + + return ret; +} + +static __devexit int wm8350_power_remove(struct platform_device *pdev) +{ + struct wm8350 *wm8350 = platform_get_drvdata(pdev); + struct wm8350_power *power = &wm8350->power; + + free_charger_irq(wm8350); + device_remove_file(&pdev->dev, &dev_attr_charger_state); + power_supply_unregister(&power->battery); + power_supply_unregister(&power->ac); + power_supply_unregister(&power->usb); + return 0; +} + +static struct platform_driver wm8350_power_driver = { + .probe = wm8350_power_probe, + .remove = __devexit_p(wm8350_power_remove), + .driver = { + .name = "wm8350-power", + }, +}; + +static int __init wm8350_power_init(void) +{ + return platform_driver_register(&wm8350_power_driver); +} +module_init(wm8350_power_init); + +static void __exit wm8350_power_exit(void) +{ + platform_driver_unregister(&wm8350_power_driver); +} +module_exit(wm8350_power_exit); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Power supply driver for WM8350"); +MODULE_ALIAS("platform:wm8350-power"); -- cgit v1.2.3