From 20fb4fd1e317dadaaaaeb9c153098b57d0fc86fe Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Tue, 21 Jul 2009 12:47:03 +0200 Subject: [PATCH] 056-pcf50633.patch --- drivers/mfd/pcf50633-core.c | 16 +++-- drivers/power/pcf50633-charger.c | 121 ++++++++++++++++++++++++++++--- drivers/regulator/pcf50633-regulator.c | 60 +++++++++++++--- drivers/rtc/rtc-pcf50633.c | 12 +++- include/linux/mfd/pcf50633/core.h | 5 +- 5 files changed, 180 insertions(+), 34 deletions(-) diff --git a/drivers/mfd/pcf50633-core.c b/drivers/mfd/pcf50633-core.c index 8d3c38b..e81c967 100644 --- a/drivers/mfd/pcf50633-core.c +++ b/drivers/mfd/pcf50633-core.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include #include @@ -345,6 +346,8 @@ static void pcf50633_irq_worker(struct work_struct *work) goto out; } + pcf50633_reg_write(pcf, PCF50633_REG_OOCSHDWN, 0x04 ); /* defeat 8s death from lowsys on A5 */ + /* We immediately read the usb and adapter status. We thus make sure * only of USBINS/USBREM IRQ handlers are called */ if (pcf_int[0] & (PCF50633_INT1_USBINS | PCF50633_INT1_USBREM)) { @@ -482,13 +485,13 @@ pcf50633_client_dev_register(struct pcf50633 *pcf, const char *name, } #ifdef CONFIG_PM -static int pcf50633_suspend(struct device *dev, pm_message_t state) +static int pcf50633_suspend(struct i2c_client *client, pm_message_t state) { struct pcf50633 *pcf; int ret = 0, i; u8 res[5]; - pcf = dev_get_drvdata(dev); + pcf = i2c_get_clientdata(client); /* Make sure our interrupt handlers are not called * henceforth */ @@ -523,12 +526,12 @@ out: return ret; } -static int pcf50633_resume(struct device *dev) +static int pcf50633_resume(struct i2c_client *client) { struct pcf50633 *pcf; int ret; - pcf = dev_get_drvdata(dev); + pcf = i2c_get_clientdata(client); /* Write the saved mask registers */ ret = pcf50633_write_block(pcf, PCF50633_REG_INT1M, @@ -625,6 +628,7 @@ static int __devinit pcf50633_probe(struct i2c_client *client, } if (client->irq) { + set_irq_handler(client->irq, handle_level_irq); ret = request_irq(client->irq, pcf50633_irq, IRQF_TRIGGER_LOW, "pcf50633", pcf); @@ -683,12 +687,12 @@ static struct i2c_device_id pcf50633_id_table[] = { static struct i2c_driver pcf50633_driver = { .driver = { .name = "pcf50633", - .suspend = pcf50633_suspend, - .resume = pcf50633_resume, }, .id_table = pcf50633_id_table, .probe = pcf50633_probe, .remove = __devexit_p(pcf50633_remove), + .suspend = pcf50633_suspend, + .resume = pcf50633_resume, }; static int __init pcf50633_init(void) diff --git a/drivers/power/pcf50633-charger.c b/drivers/power/pcf50633-charger.c index e8b278f..41fa421 100644 --- a/drivers/power/pcf50633-charger.c +++ b/drivers/power/pcf50633-charger.c @@ -36,6 +36,7 @@ struct pcf50633_mbc { struct power_supply usb; struct power_supply adapter; + struct power_supply ac; struct delayed_work charging_restart_work; }; @@ -47,16 +48,21 @@ int pcf50633_mbc_usb_curlim_set(struct pcf50633 *pcf, int ma) u8 bits; int charging_start = 1; u8 mbcs2, chgmod; + unsigned int mbcc5; - if (ma >= 1000) + if (ma >= 1000) { bits = PCF50633_MBCC7_USB_1000mA; - else if (ma >= 500) + ma = 1000; + } else if (ma >= 500) { bits = PCF50633_MBCC7_USB_500mA; - else if (ma >= 100) + ma = 500; + } else if (ma >= 100) { bits = PCF50633_MBCC7_USB_100mA; - else { + ma = 100; + } else { bits = PCF50633_MBCC7_USB_SUSPEND; charging_start = 0; + ma = 0; } ret = pcf50633_reg_set_bit_mask(pcf, PCF50633_REG_MBCC7, @@ -66,7 +72,22 @@ int pcf50633_mbc_usb_curlim_set(struct pcf50633 *pcf, int ma) else dev_info(pcf->dev, "usb curlim to %d mA\n", ma); - /* Manual charging start */ + /* + * We limit the charging current to be the USB current limit. + * The reason is that on pcf50633, when it enters PMU Standby mode, + * which it does when the device goes "off", the USB current limit + * reverts to the variant default. In at least one common case, that + * default is 500mA. By setting the charging current to be the same + * as the USB limit we set here before PMU standby, we enforce it only + * using the correct amount of current even when the USB current limit + * gets reset to the wrong thing + */ + + mbcc5 = (ma << 8) / mbc->pcf->pdata->chg_ref_current_ma; + if (mbcc5 > 255) + mbcc5 = 255; + pcf50633_reg_write(mbc->pcf, PCF50633_REG_MBCC5, mbcc5); + mbcs2 = pcf50633_reg_read(pcf, PCF50633_REG_MBCS2); chgmod = (mbcs2 & PCF50633_MBCS2_MBC_MASK); @@ -81,7 +102,7 @@ int pcf50633_mbc_usb_curlim_set(struct pcf50633 *pcf, int ma) PCF50633_MBCC1_RESUME, PCF50633_MBCC1_RESUME); mbc->usb_active = charging_start; - + power_supply_changed(&mbc->usb); return ret; @@ -156,9 +177,44 @@ static ssize_t set_usblim(struct device *dev, static DEVICE_ATTR(usb_curlim, S_IRUGO | S_IWUSR, show_usblim, set_usblim); +static ssize_t +show_chglim(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct pcf50633_mbc *mbc = dev_get_drvdata(dev); + u8 mbcc5 = pcf50633_reg_read(mbc->pcf, PCF50633_REG_MBCC5); + unsigned int ma; + + ma = (mbc->pcf->pdata->chg_ref_current_ma * mbcc5) >> 8; + + return sprintf(buf, "%u\n", ma); +} + +static ssize_t set_chglim(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct pcf50633_mbc *mbc = dev_get_drvdata(dev); + unsigned long ma; + unsigned int mbcc5; + int ret; + + ret = strict_strtoul(buf, 10, &ma); + if (ret) + return -EINVAL; + + mbcc5 = (ma << 8) / mbc->pcf->pdata->chg_ref_current_ma; + if (mbcc5 > 255) + mbcc5 = 255; + pcf50633_reg_write(mbc->pcf, PCF50633_REG_MBCC5, mbcc5); + + return count; +} + +static DEVICE_ATTR(chg_curlim, S_IRUGO | S_IWUSR, show_chglim, set_chglim); + static struct attribute *pcf50633_mbc_sysfs_entries[] = { &dev_attr_chgmode.attr, &dev_attr_usb_curlim.attr, + &dev_attr_chg_curlim.attr, NULL, }; @@ -239,6 +295,7 @@ pcf50633_mbc_irq_handler(int irq, void *data) power_supply_changed(&mbc->usb); power_supply_changed(&mbc->adapter); + power_supply_changed(&mbc->ac); if (mbc->pcf->pdata->mbc_event_callback) mbc->pcf->pdata->mbc_event_callback(mbc->pcf, irq); @@ -248,8 +305,7 @@ 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); + struct pcf50633_mbc *mbc = container_of(psy, struct pcf50633_mbc, adapter); int ret = 0; switch (psp) { @@ -269,10 +325,34 @@ static int usb_get_property(struct power_supply *psy, { struct pcf50633_mbc *mbc = container_of(psy, struct pcf50633_mbc, usb); int ret = 0; + u8 usblim = pcf50633_reg_read(mbc->pcf, PCF50633_REG_MBCC7) & + PCF50633_MBCC7_USB_MASK; switch (psp) { case POWER_SUPPLY_PROP_ONLINE: - val->intval = mbc->usb_online; + val->intval = mbc->usb_online && + (usblim <= PCF50633_MBCC7_USB_500mA); + break; + default: + ret = -EINVAL; + break; + } + return ret; +} + +static int ac_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, ac); + int ret = 0; + u8 usblim = pcf50633_reg_read(mbc->pcf, PCF50633_REG_MBCC7) & + PCF50633_MBCC7_USB_MASK; + + switch (psp) { + case POWER_SUPPLY_PROP_ONLINE: + val->intval = mbc->usb_online && + (usblim == PCF50633_MBCC7_USB_1000mA); break; default: ret = -EINVAL; @@ -337,6 +417,17 @@ static int __devinit pcf50633_mbc_probe(struct platform_device *pdev) 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; + mbc->ac.properties = power_props; + mbc->ac.num_properties = ARRAY_SIZE(power_props); + mbc->ac.get_property = ac_get_property; + mbc->ac.supplied_to = mbc->pcf->pdata->batteries; + mbc->ac.num_supplicants = mbc->pcf->pdata->num_batteries; + + INIT_DELAYED_WORK(&mbc->charging_restart_work, + pcf50633_mbc_charging_restart); + ret = power_supply_register(&pdev->dev, &mbc->adapter); if (ret) { dev_err(mbc->pcf->dev, "failed to register adapter\n"); @@ -352,9 +443,15 @@ static int __devinit pcf50633_mbc_probe(struct platform_device *pdev) return ret; } - INIT_DELAYED_WORK(&mbc->charging_restart_work, - pcf50633_mbc_charging_restart); - + ret = power_supply_register(&pdev->dev, &mbc->ac); + if (ret) { + dev_err(mbc->pcf->dev, "failed to register ac\n"); + power_supply_unregister(&mbc->adapter); + power_supply_unregister(&mbc->usb); + 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"); diff --git a/drivers/regulator/pcf50633-regulator.c b/drivers/regulator/pcf50633-regulator.c index 8e14900..4809789 100644 --- a/drivers/regulator/pcf50633-regulator.c +++ b/drivers/regulator/pcf50633-regulator.c @@ -24,11 +24,12 @@ #include #include -#define PCF50633_REGULATOR(_name, _id) \ +#define PCF50633_REGULATOR(_name, _id, _n) \ { \ .name = _name, \ .id = _id, \ .ops = &pcf50633_regulator_ops, \ + .n_voltages = _n, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ } @@ -193,6 +194,40 @@ static int pcf50633_regulator_get_voltage(struct regulator_dev *rdev) return millivolts * 1000; } +static int pcf50633_regulator_list_voltage(struct regulator_dev *rdev, + unsigned int index) +{ + struct pcf50633 *pcf; + int regulator_id, millivolts; + + pcf = rdev_get_drvdata(rdev);; + + regulator_id = rdev_get_id(rdev); + + switch (regulator_id) { + case PCF50633_REGULATOR_AUTO: + millivolts = auto_voltage_value(index + 0x2f); + break; + case PCF50633_REGULATOR_DOWN1: + case PCF50633_REGULATOR_DOWN2: + millivolts = down_voltage_value(index); + break; + case PCF50633_REGULATOR_LDO1: + case PCF50633_REGULATOR_LDO2: + case PCF50633_REGULATOR_LDO3: + case PCF50633_REGULATOR_LDO4: + case PCF50633_REGULATOR_LDO5: + case PCF50633_REGULATOR_LDO6: + case PCF50633_REGULATOR_HCLDO: + millivolts = ldo_voltage_value(index); + break; + default: + return -EINVAL; + } + + return millivolts * 1000; +} + static int pcf50633_regulator_enable(struct regulator_dev *rdev) { struct pcf50633 *pcf = rdev_get_drvdata(rdev); @@ -246,6 +281,7 @@ static int pcf50633_regulator_is_enabled(struct regulator_dev *rdev) static struct regulator_ops pcf50633_regulator_ops = { .set_voltage = pcf50633_regulator_set_voltage, .get_voltage = pcf50633_regulator_get_voltage, + .list_voltage = pcf50633_regulator_list_voltage, .enable = pcf50633_regulator_enable, .disable = pcf50633_regulator_disable, .is_enabled = pcf50633_regulator_is_enabled, @@ -253,27 +289,27 @@ static struct regulator_ops pcf50633_regulator_ops = { static struct regulator_desc regulators[] = { [PCF50633_REGULATOR_AUTO] = - PCF50633_REGULATOR("auto", PCF50633_REGULATOR_AUTO), + PCF50633_REGULATOR("auto", PCF50633_REGULATOR_AUTO, 80), [PCF50633_REGULATOR_DOWN1] = - PCF50633_REGULATOR("down1", PCF50633_REGULATOR_DOWN1), + PCF50633_REGULATOR("down1", PCF50633_REGULATOR_DOWN1, 95), [PCF50633_REGULATOR_DOWN2] = - PCF50633_REGULATOR("down2", PCF50633_REGULATOR_DOWN2), + PCF50633_REGULATOR("down2", PCF50633_REGULATOR_DOWN2, 95), [PCF50633_REGULATOR_LDO1] = - PCF50633_REGULATOR("ldo1", PCF50633_REGULATOR_LDO1), + PCF50633_REGULATOR("ldo1", PCF50633_REGULATOR_LDO1, 27), [PCF50633_REGULATOR_LDO2] = - PCF50633_REGULATOR("ldo2", PCF50633_REGULATOR_LDO2), + PCF50633_REGULATOR("ldo2", PCF50633_REGULATOR_LDO2, 27), [PCF50633_REGULATOR_LDO3] = - PCF50633_REGULATOR("ldo3", PCF50633_REGULATOR_LDO3), + PCF50633_REGULATOR("ldo3", PCF50633_REGULATOR_LDO3, 27), [PCF50633_REGULATOR_LDO4] = - PCF50633_REGULATOR("ldo4", PCF50633_REGULATOR_LDO4), + PCF50633_REGULATOR("ldo4", PCF50633_REGULATOR_LDO4, 27), [PCF50633_REGULATOR_LDO5] = - PCF50633_REGULATOR("ldo5", PCF50633_REGULATOR_LDO5), + PCF50633_REGULATOR("ldo5", PCF50633_REGULATOR_LDO5, 27), [PCF50633_REGULATOR_LDO6] = - PCF50633_REGULATOR("ldo6", PCF50633_REGULATOR_LDO6), + PCF50633_REGULATOR("ldo6", PCF50633_REGULATOR_LDO6, 27), [PCF50633_REGULATOR_HCLDO] = - PCF50633_REGULATOR("hcldo", PCF50633_REGULATOR_HCLDO), + PCF50633_REGULATOR("hcldo", PCF50633_REGULATOR_HCLDO, 26), [PCF50633_REGULATOR_MEMLDO] = - PCF50633_REGULATOR("memldo", PCF50633_REGULATOR_MEMLDO), + PCF50633_REGULATOR("memldo", PCF50633_REGULATOR_MEMLDO, 27), }; static int __devinit pcf50633_regulator_probe(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-pcf50633.c b/drivers/rtc/rtc-pcf50633.c index f4dd87e..8669815 100644 --- a/drivers/rtc/rtc-pcf50633.c +++ b/drivers/rtc/rtc-pcf50633.c @@ -58,6 +58,7 @@ struct pcf50633_time { struct pcf50633_rtc { int alarm_enabled; int second_enabled; + int alarm_pending; struct pcf50633 *pcf; struct rtc_device *rtc_dev; @@ -70,7 +71,7 @@ static void pcf2rtc_time(struct rtc_time *rtc, struct pcf50633_time *pcf) rtc->tm_hour = bcd2bin(pcf->time[PCF50633_TI_HOUR]); rtc->tm_wday = bcd2bin(pcf->time[PCF50633_TI_WKDAY]); rtc->tm_mday = bcd2bin(pcf->time[PCF50633_TI_DAY]); - rtc->tm_mon = bcd2bin(pcf->time[PCF50633_TI_MONTH]); + rtc->tm_mon = bcd2bin(pcf->time[PCF50633_TI_MONTH]) - 1; rtc->tm_year = bcd2bin(pcf->time[PCF50633_TI_YEAR]) + 100; } @@ -81,7 +82,7 @@ static void rtc2pcf_time(struct pcf50633_time *pcf, struct rtc_time *rtc) pcf->time[PCF50633_TI_HOUR] = bin2bcd(rtc->tm_hour); pcf->time[PCF50633_TI_WKDAY] = bin2bcd(rtc->tm_wday); pcf->time[PCF50633_TI_DAY] = bin2bcd(rtc->tm_mday); - pcf->time[PCF50633_TI_MONTH] = bin2bcd(rtc->tm_mon); + pcf->time[PCF50633_TI_MONTH] = bin2bcd(rtc->tm_mon + 1); pcf->time[PCF50633_TI_YEAR] = bin2bcd(rtc->tm_year % 100); } @@ -209,6 +210,7 @@ static int pcf50633_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm) rtc = dev_get_drvdata(dev); alrm->enabled = rtc->alarm_enabled; + alrm->pending = rtc->alarm_pending; ret = pcf50633_read_block(rtc->pcf, PCF50633_REG_RTCSCA, PCF50633_TI_EXTENT, &pcf_tm.time[0]); @@ -244,9 +246,12 @@ static int pcf50633_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm) /* Returns 0 on success */ ret = pcf50633_write_block(rtc->pcf, PCF50633_REG_RTCSCA, PCF50633_TI_EXTENT, &pcf_tm.time[0]); + if (!alrm->enabled) + rtc->alarm_pending = 0; - if (!alarm_masked) + if (!alarm_masked || alrm->enabled) pcf50633_irq_unmask(rtc->pcf, PCF50633_IRQ_ALARM); + rtc->alarm_enabled = alrm->enabled; return ret; } @@ -267,6 +272,7 @@ static void pcf50633_rtc_irq(int irq, void *data) switch (irq) { case PCF50633_IRQ_ALARM: rtc_update_irq(rtc->rtc_dev, 1, RTC_AF | RTC_IRQF); + rtc->alarm_pending = 1; break; case PCF50633_IRQ_SECOND: rtc_update_irq(rtc->rtc_dev, 1, RTC_UF | RTC_IRQF); diff --git a/include/linux/mfd/pcf50633/core.h b/include/linux/mfd/pcf50633/core.h index c8f51c3..af67b4e 100644 --- a/include/linux/mfd/pcf50633/core.h +++ b/include/linux/mfd/pcf50633/core.h @@ -31,6 +31,8 @@ struct pcf50633_platform_data { int charging_restart_interval; + int chg_ref_current_ma; + /* Callbacks */ void (*probe_done)(struct pcf50633 *); void (*mbc_event_callback)(struct pcf50633 *, int); @@ -208,7 +210,8 @@ enum pcf50633_reg_int5 { }; /* misc. registers */ -#define PCF50633_REG_OOCSHDWN 0x0c +#define PCF50633_REG_OOCSHDWN 0x0c +#define PCF50633_OOCSHDWN_GOSTDBY 0x01 /* LED registers */ #define PCF50633_REG_LEDOUT 0x28 -- 1.5.6.5