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openwrt/target/linux/s3c24xx/patches-2.6.30/056-pcf50633.patch
Imre Kaloz 04bca7b528 update to 2.6.30-rc7 
SVN-Revision: 16048
2009-05-25 12:27:13 +00:00

358 lines
10 KiB
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Raw Blame History

--- a/drivers/mfd/pcf50633-core.c
+++ b/drivers/mfd/pcf50633-core.c
@@ -15,6 +15,7 @@
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/sysfs.h>
+#include <linux/device.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/interrupt.h>
@@ -345,6 +346,8 @@ static void pcf50633_irq_worker(struct w
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 pcf5
}
#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(stru
}
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_
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)
--- 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 p
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 p
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 p
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
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 *
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 p
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
{
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(
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(
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");
--- 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->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
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(struc
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
/* 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, vo
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);
--- 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
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