aboutsummaryrefslogtreecommitdiff
path: root/drivers/power
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/power')
-rw-r--r--drivers/power/Kconfig20
-rw-r--r--drivers/power/Makefile3
-rw-r--r--drivers/power/da9030_battery.c600
-rw-r--r--drivers/power/ds2760_battery.c4
-rw-r--r--drivers/power/pcf50633-charger.c359
-rw-r--r--drivers/power/pda_power.c2
-rw-r--r--drivers/power/power_supply_sysfs.c2
-rw-r--r--drivers/power/wm8350_power.c532
8 files changed, 1518 insertions, 4 deletions
diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index 8e0c2b47803..33da1127992 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
@@ -68,4 +75,17 @@ 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
diff --git a/drivers/power/Makefile b/drivers/power/Makefile
index e8f1ecec5d8..2fcf41d13e5 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
@@ -23,3 +24,5 @@ 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 \ No newline at end of file
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 <mike@compulab.co.il>
+ *
+ * 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 <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/device.h>
+#include <linux/workqueue.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/power_supply.h>
+#include <linux/mfd/da903x.h>
+
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+
+#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
new file mode 100644
index 00000000000..41aec2acbb9
--- /dev/null
+++ b/drivers/power/pcf50633-charger.c
@@ -0,0 +1,359 @@
+/* NXP PCF50633 Main Battery Charger Driver
+ *
+ * (C) 2006-2008 by Openmoko, Inc.
+ * Author: Balaji Rao <balajirrao@openmoko.org>
+ * All rights reserved.
+ *
+ * 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.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/device.h>
+#include <linux/sysfs.h>
+#include <linux/platform_device.h>
+#include <linux/power_supply.h>
+
+#include <linux/mfd/pcf50633/core.h>
+#include <linux/mfd/pcf50633/mbc.h>
+
+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)
+{
+ struct pcf50633_mbc *mbc = platform_get_drvdata(pcf->mbc_pdev);
+ int ret = 0;
+ u8 bits;
+
+ if (ma >= 1000)
+ bits = PCF50633_MBCC7_USB_1000mA;
+ else if (ma >= 500)
+ bits = PCF50633_MBCC7_USB_500mA;
+ else if (ma >= 100)
+ bits = PCF50633_MBCC7_USB_100mA;
+ else
+ bits = PCF50633_MBCC7_USB_SUSPEND;
+
+ ret = pcf50633_reg_set_bit_mask(pcf, PCF50633_REG_MBCC7,
+ PCF50633_MBCC7_USB_MASK, bits);
+ if (ret)
+ dev_err(pcf->dev, "error setting usb curlim to %d mA\n", ma);
+ else
+ dev_info(pcf->dev, "usb curlim to %d mA\n", ma);
+
+ power_supply_changed(&mbc->usb);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(pcf50633_mbc_usb_curlim_set);
+
+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)
+{
+ struct pcf50633_mbc *mbc = dev_get_drvdata(dev);
+
+ u8 mbcs2 = pcf50633_reg_read(mbc->pcf, PCF50633_REG_MBCS2);
+ u8 chgmod = (mbcs2 & PCF50633_MBCS2_MBC_MASK);
+
+ return sprintf(buf, "%d\n", chgmod);
+}
+static DEVICE_ATTR(chgmode, S_IRUGO, show_chgmode, NULL);
+
+static ssize_t
+show_usblim(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ 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;
+
+ if (usblim == PCF50633_MBCC7_USB_1000mA)
+ ma = 1000;
+ else if (usblim == PCF50633_MBCC7_USB_500mA)
+ ma = 500;
+ else if (usblim == PCF50633_MBCC7_USB_100mA)
+ ma = 100;
+ else
+ ma = 0;
+
+ return sprintf(buf, "%u\n", ma);
+}
+
+static ssize_t set_usblim(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct pcf50633_mbc *mbc = dev_get_drvdata(dev);
+ unsigned long ma;
+ int ret;
+
+ ret = strict_strtoul(buf, 10, &ma);
+ if (ret)
+ return -EINVAL;
+
+ pcf50633_mbc_usb_curlim_set(mbc->pcf, ma);
+
+ return count;
+}
+
+static DEVICE_ATTR(usb_curlim, S_IRUGO | S_IWUSR, show_usblim, set_usblim);
+
+static struct attribute *pcf50633_mbc_sysfs_entries[] = {
+ &dev_attr_chgmode.attr,
+ &dev_attr_usb_curlim.attr,
+ NULL,
+};
+
+static struct attribute_group mbc_attr_group = {
+ .name = NULL, /* put in device directory */
+ .attrs = pcf50633_mbc_sysfs_entries,
+};
+
+static void
+pcf50633_mbc_irq_handler(int irq, void *data)
+{
+ struct pcf50633_mbc *mbc = data;
+
+ /* USB */
+ if (irq == PCF50633_IRQ_USBINS) {
+ mbc->usb_online = 1;
+ } else if (irq == PCF50633_IRQ_USBREM) {
+ mbc->usb_online = 0;
+ mbc->usb_active = 0;
+ pcf50633_mbc_usb_curlim_set(mbc->pcf, 0);
+ }
+
+ /* Adapter */
+ if (irq == PCF50633_IRQ_ADPINS) {
+ mbc->adapter_online = 1;
+ mbc->adapter_active = 1;
+ } else if (irq == PCF50633_IRQ_ADPREM) {
+ mbc->adapter_online = 0;
+ mbc->adapter_active = 0;
+ }
+
+ if (irq == PCF50633_IRQ_BATFULL) {
+ mbc->usb_active = 0;
+ mbc->adapter_active = 0;
+ }
+
+ power_supply_changed(&mbc->usb);
+ power_supply_changed(&mbc->adapter);
+
+ 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)
+{
+ struct pcf50633_mbc *mbc = container_of(psy,
+ struct pcf50633_mbc, adapter);
+ int ret = 0;
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_ONLINE:
+ val->intval = mbc->adapter_online;
+ 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)
+{
+ struct pcf50633_mbc *mbc = container_of(psy, struct pcf50633_mbc, usb);
+ int ret = 0;
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_ONLINE:
+ val->intval = mbc->usb_online;
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+ return ret;
+}
+
+static enum power_supply_property power_props[] = {
+ POWER_SUPPLY_PROP_ONLINE,
+};
+
+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_mbc *mbc;
+ struct pcf50633_subdev_pdata *pdata = pdev->dev.platform_data;
+ int ret;
+ int i;
+ u8 mbcs1;
+
+ mbc = kzalloc(sizeof(*mbc), GFP_KERNEL);
+ if (!mbc)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, mbc);
+ mbc->pcf = pdata->pcf;
+
+ /* Set up IRQ handlers */
+ 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 = 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 = mbc->pcf->pdata->batteries;
+ mbc->usb.num_supplicants = mbc->pcf->pdata->num_batteries;
+
+ ret = power_supply_register(&pdev->dev, &mbc->adapter);
+ 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(mbc->pcf->dev, "failed to register usb\n");
+ power_supply_unregister(&mbc->adapter);
+ kfree(mbc);
+ return ret;
+ }
+
+ ret = sysfs_create_group(&pdev->dev.kobj, &mbc_attr_group);
+ if (ret)
+ dev_err(mbc->pcf->dev, "failed to create sysfs entries\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);
+
+ return 0;
+}
+
+static int __devexit pcf50633_mbc_remove(struct platform_device *pdev)
+{
+ 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);
+
+ kfree(mbc);
+
+ return 0;
+}
+
+static struct platform_driver pcf50633_mbc_driver = {
+ .driver = {
+ .name = "pcf50633-mbc",
+ },
+ .probe = pcf50633_mbc_probe,
+ .remove = __devexit_p(pcf50633_mbc_remove),
+};
+
+static int __init pcf50633_mbc_init(void)
+{
+ 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);
+}
+module_exit(pcf50633_mbc_exit);
+
+MODULE_AUTHOR("Balaji Rao <balajirrao@openmoko.org>");
+MODULE_DESCRIPTION("PCF50633 mbc driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pcf50633-mbc");
diff --git a/drivers/power/pda_power.c b/drivers/power/pda_power.c
index d30bb766fce..b56a704409d 100644
--- a/drivers/power/pda_power.c
+++ b/drivers/power/pda_power.c
@@ -20,7 +20,7 @@
static inline unsigned int get_irq_flags(struct resource *res)
{
- unsigned int flags = IRQF_DISABLED | IRQF_SHARED;
+ unsigned int flags = IRQF_SAMPLE_RANDOM | IRQF_SHARED;
flags |= res->flags & IRQF_TRIGGER_MASK;
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 <dwmw2@infradead.org>
+ *
+ * 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 <linux/module.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/power_supply.h>
+#include <linux/mfd/wm8350/supply.h>
+#include <linux/mfd/wm8350/core.h>
+#include <linux/mfd/wm8350/comparator.h>
+
+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");