diff options
| -rw-r--r-- | arch/arm/mach-s3c2440/mach-gta02.c | 1 | ||||
| -rw-r--r-- | drivers/power/pcf50633-charger.c | 33 | ||||
| -rw-r--r-- | include/linux/mfd/pcf50633/core.h | 2 |
3 files changed, 36 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c2440/mach-gta02.c b/arch/arm/mach-s3c2440/mach-gta02.c index 31759d850fd..d7801286598 100644 --- a/arch/arm/mach-s3c2440/mach-gta02.c +++ b/arch/arm/mach-s3c2440/mach-gta02.c @@ -640,6 +640,7 @@ struct pcf50633_platform_data gta02_pcf_pdata = { .batteries = gta02_batteries, .num_batteries = ARRAY_SIZE(gta02_batteries), .charging_restart_interval = (900 * HZ), + .chg_ref_current_ma = 1000, .reg_init_data = { [PCF50633_REGULATOR_AUTO] = { diff --git a/drivers/power/pcf50633-charger.c b/drivers/power/pcf50633-charger.c index 1efd7987517..874caf6033f 100644 --- a/drivers/power/pcf50633-charger.c +++ b/drivers/power/pcf50633-charger.c @@ -156,9 +156,42 @@ 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; + u8 mbcc5; + int ret; + + ret = strict_strtoul(buf, 10, &ma); + if (ret) + return -EINVAL; + + mbcc5 = (ma << 8) / mbc->pcf->pdata->chg_ref_current_ma; + 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, }; diff --git a/include/linux/mfd/pcf50633/core.h b/include/linux/mfd/pcf50633/core.h index b7a891bf9e0..af67b4e3ec6 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); |