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-rw-r--r--drivers/i2c/chips/pcf50633.c256
-rw-r--r--drivers/rtc/Kconfig6
-rw-r--r--drivers/rtc/Makefile1
-rw-r--r--drivers/rtc/rtc-pcf50633.c272
4 files changed, 293 insertions, 242 deletions
diff --git a/drivers/i2c/chips/pcf50633.c b/drivers/i2c/chips/pcf50633.c
index 419dd3198f7..8ba414bc531 100644
--- a/drivers/i2c/chips/pcf50633.c
+++ b/drivers/i2c/chips/pcf50633.c
@@ -22,7 +22,6 @@
* This driver is a monster ;) It provides the following features
* - voltage control for a dozen different voltage domains
* - charging control for main and backup battery
- * - rtc / alarm
* - adc driver (hw_sensors like)
*
*/
@@ -51,6 +50,7 @@
#include <linux/pcf50633.h>
#include <linux/regulator/pcf50633.h>
+#include <linux/rtc/pcf50633.h>
#if 0
#define DEBUGP(x, args ...) printk("%s: " x, __FUNCTION__, ## args)
@@ -68,27 +68,6 @@ static unsigned short normal_i2c[] = { 0x73, I2C_CLIENT_END };
I2C_CLIENT_INSMOD_1(pcf50633);
-#define PCF50633_FIDX_CHG_ENABLED 0 /* Charger enabled */
-#define PCF50633_FIDX_CHG_PRESENT 1 /* Charger present */
-#define PCF50633_FIDX_CHG_ERR 3 /* Charger Error */
-#define PCF50633_FIDX_CHG_PROT 4 /* Charger Protection */
-#define PCF50633_FIDX_CHG_READY 5 /* Charging completed */
-#define PCF50633_FIDX_PWR_PRESSED 8
-#define PCF50633_FIDX_RTC_SECOND 9
-#define PCF50633_FIDX_USB_PRESENT 10
-
-#define PCF50633_F_CHG_ENABLED (1 << PCF50633_FIDX_CHG_ENABLED)
-#define PCF50633_F_CHG_PRESENT (1 << PCF50633_FIDX_CHG_PRESENT)
-#define PCF50633_F_CHG_ERR (1 << PCF50633_FIDX_CHG_ERR)
-#define PCF50633_F_CHG_PROT (1 << PCF50633_FIDX_CHG_PROT)
-#define PCF50633_F_CHG_READY (1 << PCF50633_FIDX_CHG_READY)
-
-#define PCF50633_F_CHG_MASK 0x000000fc
-
-#define PCF50633_F_PWR_PRESSED (1 << PCF50633_FIDX_PWR_PRESSED)
-#define PCF50633_F_RTC_SECOND (1 << PCF50633_FIDX_RTC_SECOND)
-#define PCF50633_F_USB_PRESENT (1 << PCF50633_FIDX_USB_PRESENT)
-
enum close_state {
CLOSE_STATE_NOT,
CLOSE_STATE_ALLOW = 0x2342,
@@ -753,12 +732,14 @@ static void pcf50633_work(struct work_struct *work)
if (pcfirq[0] & PCF50633_INT1_ALARM) {
DEBUGPC("ALARM ");
if (pcf->pdata->used_features & PCF50633_FEAT_RTC)
- rtc_update_irq(pcf->rtc, 1, RTC_AF | RTC_IRQF);
+ pcf50633_rtc_handle_event(pcf,
+ PCF50633_RTC_EVENT_ALARM);
}
if (pcfirq[0] & PCF50633_INT1_SECOND) {
DEBUGPC("SECOND ");
if (pcf->flags & PCF50633_F_RTC_SECOND)
- rtc_update_irq(pcf->rtc, 1, RTC_PF | RTC_IRQF);
+ pcf50633_rtc_handle_event(pcf,
+ PCF50633_RTC_EVENT_SECOND);
if (pcf->onkey_seconds >= 0 &&
pcf->flags & PCF50633_F_PWR_PRESSED) {
@@ -1330,219 +1311,6 @@ static ssize_t show_chgstate(struct device *dev, struct device_attribute *attr,
}
static DEVICE_ATTR(chgstate, S_IRUGO | S_IWUSR, show_chgstate, NULL);
-/***********************************************************************
- * RTC
- ***********************************************************************/
-enum pcf50633_time_indexes {
- PCF50633_TI_SEC = 0,
- PCF50633_TI_MIN,
- PCF50633_TI_HOUR,
- PCF50633_TI_WKDAY,
- PCF50633_TI_DAY,
- PCF50633_TI_MONTH,
- PCF50633_TI_YEAR,
- PCF50633_TI_EXTENT /* always last */
-};
-
-
-struct pcf50633_time {
- u_int8_t time[PCF50633_TI_EXTENT];
-};
-
-static void pcf2rtc_time(struct rtc_time *rtc, struct pcf50633_time *pcf)
-{
- rtc->tm_sec = bcd2bin(pcf->time[PCF50633_TI_SEC]);
- rtc->tm_min = bcd2bin(pcf->time[PCF50633_TI_MIN]);
- 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_year = bcd2bin(pcf->time[PCF50633_TI_YEAR]) + 100;
-}
-
-static void rtc2pcf_time(struct pcf50633_time *pcf, struct rtc_time *rtc)
-{
- pcf->time[PCF50633_TI_SEC] = bin2bcd(rtc->tm_sec);
- pcf->time[PCF50633_TI_MIN] = bin2bcd(rtc->tm_min);
- 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_YEAR] = bin2bcd(rtc->tm_year - 100);
-}
-
-static int pcf50633_rtc_ioctl(struct device *dev, unsigned int cmd,
- unsigned long arg)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct pcf50633_data *pcf = i2c_get_clientdata(client);
-
- switch (cmd) {
- case RTC_AIE_OFF:
- /* disable the alarm interrupt */
- pcf50633_reg_set_bit_mask(pcf, PCF50633_REG_INT1M,
- PCF50633_INT1_ALARM, PCF50633_INT1_ALARM);
- return 0;
- case RTC_AIE_ON:
- /* enable the alarm interrupt */
- pcf50633_reg_clear_bits(pcf, PCF50633_REG_INT1M, PCF50633_INT1_ALARM);
- return 0;
- case RTC_PIE_OFF:
- /* disable periodic interrupt (hz tick) */
- pcf->flags &= ~PCF50633_F_RTC_SECOND;
- pcf50633_reg_set_bit_mask(pcf, PCF50633_REG_INT1M,
- PCF50633_INT1_SECOND, PCF50633_INT1_SECOND);
- return 0;
- case RTC_PIE_ON:
- /* ensable periodic interrupt (hz tick) */
- pcf->flags |= PCF50633_F_RTC_SECOND;
- pcf50633_reg_clear_bits(pcf, PCF50633_REG_INT1M, PCF50633_INT1_SECOND);
- return 0;
- }
- return -ENOIOCTLCMD;
-}
-
-static int pcf50633_rtc_read_time(struct device *dev, struct rtc_time *tm)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct pcf50633_data *pcf = i2c_get_clientdata(client);
- struct pcf50633_time pcf_tm;
- int ret;
-
- mutex_lock(&pcf->lock);
-
- ret = i2c_smbus_read_i2c_block_data(pcf->client,
- PCF50633_REG_RTCSC,
- PCF50633_TI_EXTENT,
- &pcf_tm.time[0]);
- if (ret != PCF50633_TI_EXTENT)
- dev_err(dev, "Failed to read time :-(\n");
-
- mutex_unlock(&pcf->lock);
-
- dev_dbg(dev, "PCF_TIME: %02x.%02x.%02x %02x:%02x:%02x\n",
- pcf_tm.time[PCF50633_TI_DAY],
- pcf_tm.time[PCF50633_TI_MONTH],
- pcf_tm.time[PCF50633_TI_YEAR],
- pcf_tm.time[PCF50633_TI_HOUR],
- pcf_tm.time[PCF50633_TI_MIN],
- pcf_tm.time[PCF50633_TI_SEC]);
-
- pcf2rtc_time(tm, &pcf_tm);
-
- dev_dbg(dev, "RTC_TIME: %u.%u.%u %u:%u:%u\n",
- tm->tm_mday, tm->tm_mon, tm->tm_year,
- tm->tm_hour, tm->tm_min, tm->tm_sec);
-
- return 0;
-}
-
-static int pcf50633_rtc_set_time(struct device *dev, struct rtc_time *tm)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct pcf50633_data *pcf = i2c_get_clientdata(client);
- struct pcf50633_time pcf_tm;
- int ret;
-
- dev_dbg(dev, "RTC_TIME: %u.%u.%u %u:%u:%u\n",
- tm->tm_mday, tm->tm_mon, tm->tm_year,
- tm->tm_hour, tm->tm_min, tm->tm_sec);
- rtc2pcf_time(&pcf_tm, tm);
- dev_dbg(dev, "PCF_TIME: %02x.%02x.%02x %02x:%02x:%02x\n",
- pcf_tm.time[PCF50633_TI_DAY],
- pcf_tm.time[PCF50633_TI_MONTH],
- pcf_tm.time[PCF50633_TI_YEAR],
- pcf_tm.time[PCF50633_TI_HOUR],
- pcf_tm.time[PCF50633_TI_MIN],
- pcf_tm.time[PCF50633_TI_SEC]);
-
- mutex_lock(&pcf->lock);
- /* FIXME: disable second interrupt */
-
- ret = i2c_smbus_write_i2c_block_data(pcf->client,
- PCF50633_REG_RTCSC,
- PCF50633_TI_EXTENT,
- &pcf_tm.time[0]);
- if (ret)
- dev_err(dev, "Failed to set time %d\n", ret);
-
- /* FIXME: re-enable second interrupt */
- mutex_unlock(&pcf->lock);
-
- return 0;
-}
-
-static int pcf50633_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct pcf50633_data *pcf = i2c_get_clientdata(client);
- struct pcf50633_time pcf_tm;
- int ret;
-
- mutex_lock(&pcf->lock);
-
- alrm->enabled =
- __reg_read(pcf, PCF50633_REG_INT1M) & PCF50633_INT1_ALARM ? 0 : 1;
-
- ret = i2c_smbus_read_i2c_block_data(pcf->client,
- PCF50633_REG_RTCSCA,
- PCF50633_TI_EXTENT,
- &pcf_tm.time[0]);
- if (ret != PCF50633_TI_EXTENT)
- dev_err(dev, "Failed to read Alarm time :-(\n");
-
- mutex_unlock(&pcf->lock);
-
- pcf2rtc_time(&alrm->time, &pcf_tm);
-
- return 0;
-}
-
-static int pcf50633_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct pcf50633_data *pcf = i2c_get_clientdata(client);
- struct pcf50633_time pcf_tm;
- u_int8_t irqmask;
- int ret;
-
- rtc2pcf_time(&pcf_tm, &alrm->time);
-
- mutex_lock(&pcf->lock);
-
- /* disable alarm interrupt */
- irqmask = __reg_read(pcf, PCF50633_REG_INT1M);
- irqmask |= PCF50633_INT1_ALARM;
- __reg_write(pcf, PCF50633_REG_INT1M, irqmask);
-
- ret = i2c_smbus_write_i2c_block_data(pcf->client,
- PCF50633_REG_RTCSCA,
- PCF50633_TI_EXTENT,
- &pcf_tm.time[0]);
- if (ret)
- dev_err(dev, "Failed to write alarm time :-( %d\n", ret);
-
- if (alrm->enabled) {
- /* (re-)enaable alarm interrupt */
- irqmask = __reg_read(pcf, PCF50633_REG_INT1M);
- irqmask &= ~PCF50633_INT1_ALARM;
- __reg_write(pcf, PCF50633_REG_INT1M, irqmask);
- }
-
- mutex_unlock(&pcf->lock);
-
- /* FIXME */
- return 0;
-}
-
-static struct rtc_class_ops pcf50633_rtc_ops = {
- .ioctl = pcf50633_rtc_ioctl,
- .read_time = pcf50633_rtc_read_time,
- .set_time = pcf50633_rtc_set_time,
- .read_alarm = pcf50633_rtc_read_alarm,
- .set_alarm = pcf50633_rtc_set_alarm,
-};
-
/*
* Charger type
*/
@@ -1705,6 +1473,11 @@ static void populate_sysfs_group(struct pcf50633_data *pcf)
}
+static struct platform_device pcf50633_rtc_pdev = {
+ .name = "pcf50633-rtc",
+ .id = -1,
+};
+
static int pcf50633_probe(struct i2c_client *client, const struct i2c_device_id *ids)
{
struct pcf50633_data *pcf;
@@ -1804,12 +1577,11 @@ static int pcf50633_probe(struct i2c_client *client, const struct i2c_device_id
"source in this hardware revision!", irq);
if (pcf->pdata->used_features & PCF50633_FEAT_RTC) {
- pcf->rtc = rtc_device_register("pcf50633", &client->dev,
- &pcf50633_rtc_ops, THIS_MODULE);
- if (IS_ERR(pcf->rtc)) {
- err = PTR_ERR(pcf->rtc);
+ pcf50633_rtc_pdev.dev.platform_data = pcf;
+
+ err = platform_device_register(&pcf50633_rtc_pdev);
+ if (err)
goto exit_irq;
- }
}
if (pcf->pdata->flag_use_apm_emulation)
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 8abbb2020af..e8a1c7c5420 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -219,6 +219,12 @@ config RTC_DRV_PCF8583
This driver can also be built as a module. If so, the module
will be called rtc-pcf8583.
+config RTC_DRV_PCF50633
+ tristate "Philips PCF50633"
+ help
+ If you say yes here you get support for the Philips PCF50633
+ PMU's RTC driver.
+
config RTC_DRV_M41T80
tristate "ST M41T65/M41T80/81/82/83/84/85/87"
help
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index e9e8474cc8f..ab3a003991e 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -49,6 +49,7 @@ obj-$(CONFIG_RTC_DRV_MAX6902) += rtc-max6902.o
obj-$(CONFIG_RTC_DRV_OMAP) += rtc-omap.o
obj-$(CONFIG_RTC_DRV_PCF8563) += rtc-pcf8563.o
obj-$(CONFIG_RTC_DRV_PCF8583) += rtc-pcf8583.o
+obj-$(CONFIG_RTC_DRV_PCF50633) += rtc-pcf50633.o
obj-$(CONFIG_RTC_DRV_PL030) += rtc-pl030.o
obj-$(CONFIG_RTC_DRV_PL031) += rtc-pl031.o
obj-$(CONFIG_RTC_DRV_PARISC) += rtc-parisc.o
diff --git a/drivers/rtc/rtc-pcf50633.c b/drivers/rtc/rtc-pcf50633.c
new file mode 100644
index 00000000000..74b7e569d39
--- /dev/null
+++ b/drivers/rtc/rtc-pcf50633.c
@@ -0,0 +1,272 @@
+#include <linux/rtc.h>
+#include <linux/platform_device.h>
+#include <linux/bcd.h>
+#include <linux/pcf50633.h>
+#include <linux/rtc/pcf50633.h>
+#include <linux/i2c.h>
+
+enum pcf50633_time_indexes {
+ PCF50633_TI_SEC = 0,
+ PCF50633_TI_MIN,
+ PCF50633_TI_HOUR,
+ PCF50633_TI_WKDAY,
+ PCF50633_TI_DAY,
+ PCF50633_TI_MONTH,
+ PCF50633_TI_YEAR,
+ PCF50633_TI_EXTENT /* always last */
+};
+
+
+struct pcf50633_time {
+ u_int8_t time[PCF50633_TI_EXTENT];
+};
+
+static void pcf2rtc_time(struct rtc_time *rtc, struct pcf50633_time *pcf)
+{
+ rtc->tm_sec = bcd2bin(pcf->time[PCF50633_TI_SEC]);
+ rtc->tm_min = bcd2bin(pcf->time[PCF50633_TI_MIN]);
+ 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_year = bcd2bin(pcf->time[PCF50633_TI_YEAR]) + 100;
+}
+
+static void rtc2pcf_time(struct pcf50633_time *pcf, struct rtc_time *rtc)
+{
+ pcf->time[PCF50633_TI_SEC] = bin2bcd(rtc->tm_sec);
+ pcf->time[PCF50633_TI_MIN] = bin2bcd(rtc->tm_min);
+ 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_YEAR] = bin2bcd(rtc->tm_year - 100);
+}
+
+static int pcf50633_rtc_ioctl(struct device *dev, unsigned int cmd,
+ unsigned long arg)
+{
+ struct pcf50633_data *pcf = dev->platform_data;
+
+ switch (cmd) {
+ case RTC_AIE_OFF:
+ /* disable the alarm interrupt */
+ pcf50633_reg_set_bit_mask(pcf, PCF50633_REG_INT1M,
+ PCF50633_INT1_ALARM, PCF50633_INT1_ALARM);
+ return 0;
+ case RTC_AIE_ON:
+ /* enable the alarm interrupt */
+ pcf50633_reg_clear_bits(pcf, PCF50633_REG_INT1M, PCF50633_INT1_ALARM);
+ return 0;
+ case RTC_PIE_OFF:
+ /* disable periodic interrupt (hz tick) */
+ pcf->flags &= ~PCF50633_F_RTC_SECOND;
+ pcf50633_reg_set_bit_mask(pcf, PCF50633_REG_INT1M,
+ PCF50633_INT1_SECOND, PCF50633_INT1_SECOND);
+ return 0;
+ case RTC_PIE_ON:
+ /* ensable periodic interrupt (hz tick) */
+ pcf->flags |= PCF50633_F_RTC_SECOND;
+ pcf50633_reg_clear_bits(pcf, PCF50633_REG_INT1M, PCF50633_INT1_SECOND);
+ return 0;
+ }
+ return -ENOIOCTLCMD;
+}
+
+#ifdef PCF50633_RTC
+void pcf50633_rtc_handle_event(struct pcf50633_data *pcf,
+ enum pcf50633_rtc_event evt)
+{
+ switch(evt) {
+ case PCF50633_RTC_EVENT_ALARM:
+ rtc_update_irq(pcf->rtc, 1, RTC_AF | RTC_IRQF);
+ break;
+ case PCF50633_RTC_EVENT_SECOND:
+ rtc_update_irq(pcf->rtc, 1, RTC_PF | RTC_IRQF);
+ }
+}
+#else
+void pcf50633_rtc_handle_event(struct pcf50633_data *pcf,
+ enum pcf50633_rtc_event evt)
+{
+
+}
+#endif
+
+static int pcf50633_rtc_read_time(struct device *dev, struct rtc_time *tm)
+{
+ struct pcf50633_data *pcf = dev->platform_data;
+ struct pcf50633_time pcf_tm;
+ int ret;
+
+ mutex_lock(&pcf->lock);
+
+ ret = i2c_smbus_read_i2c_block_data(pcf->client,
+ PCF50633_REG_RTCSC,
+ PCF50633_TI_EXTENT,
+ &pcf_tm.time[0]);
+ if (ret != PCF50633_TI_EXTENT)
+ dev_err(dev, "Failed to read time :-(\n");
+
+ mutex_unlock(&pcf->lock);
+
+ dev_dbg(dev, "PCF_TIME: %02x.%02x.%02x %02x:%02x:%02x\n",
+ pcf_tm.time[PCF50633_TI_DAY],
+ pcf_tm.time[PCF50633_TI_MONTH],
+ pcf_tm.time[PCF50633_TI_YEAR],
+ pcf_tm.time[PCF50633_TI_HOUR],
+ pcf_tm.time[PCF50633_TI_MIN],
+ pcf_tm.time[PCF50633_TI_SEC]);
+
+ pcf2rtc_time(tm, &pcf_tm);
+
+ dev_dbg(dev, "RTC_TIME: %u.%u.%u %u:%u:%u\n",
+ tm->tm_mday, tm->tm_mon, tm->tm_year,
+ tm->tm_hour, tm->tm_min, tm->tm_sec);
+
+ return 0;
+}
+
+static int pcf50633_rtc_set_time(struct device *dev, struct rtc_time *tm)
+{
+ struct pcf50633_data *pcf = dev->platform_data;
+ struct pcf50633_time pcf_tm;
+ int ret;
+
+ dev_dbg(dev, "RTC_TIME: %u.%u.%u %u:%u:%u\n",
+ tm->tm_mday, tm->tm_mon, tm->tm_year,
+ tm->tm_hour, tm->tm_min, tm->tm_sec);
+ rtc2pcf_time(&pcf_tm, tm);
+ dev_dbg(dev, "PCF_TIME: %02x.%02x.%02x %02x:%02x:%02x\n",
+ pcf_tm.time[PCF50633_TI_DAY],
+ pcf_tm.time[PCF50633_TI_MONTH],
+ pcf_tm.time[PCF50633_TI_YEAR],
+ pcf_tm.time[PCF50633_TI_HOUR],
+ pcf_tm.time[PCF50633_TI_MIN],
+ pcf_tm.time[PCF50633_TI_SEC]);
+
+ mutex_lock(&pcf->lock);
+ /* FIXME: disable second interrupt */
+
+ ret = i2c_smbus_write_i2c_block_data(pcf->client,
+ PCF50633_REG_RTCSC,
+ PCF50633_TI_EXTENT,
+ &pcf_tm.time[0]);
+ if (ret)
+ dev_err(dev, "Failed to set time %d\n", ret);
+
+ /* FIXME: re-enable second interrupt */
+ mutex_unlock(&pcf->lock);
+
+ return 0;
+}
+
+static int pcf50633_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+ struct pcf50633_data *pcf = dev->platform_data;
+ struct pcf50633_time pcf_tm;
+ int ret;
+ u_int8_t reg;
+
+ mutex_lock(&pcf->lock);
+
+ pcf50633_read(pcf, PCF50633_REG_INT1M, 1, &reg);
+ alrm->enabled = reg & PCF50633_INT1_ALARM ? 0 : 1;
+
+ ret = pcf50633_read(pcf, PCF50633_REG_RTCSCA,
+ PCF50633_TI_EXTENT, &pcf_tm.time[0]);
+
+ if (ret != PCF50633_TI_EXTENT)
+ dev_err(dev, "Failed to read Alarm time :-(\n");
+
+ mutex_unlock(&pcf->lock);
+
+ pcf2rtc_time(&alrm->time, &pcf_tm);
+
+ return 0;
+}
+
+static int pcf50633_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+ struct pcf50633_data *pcf = dev->platform_data;
+ struct pcf50633_time pcf_tm;
+ u_int8_t irqmask;
+ int ret;
+
+ rtc2pcf_time(&pcf_tm, &alrm->time);
+
+ mutex_lock(&pcf->lock);
+
+ /* disable alarm interrupt */
+ pcf50633_read(pcf, PCF50633_REG_INT1M, 1, &irqmask);
+ irqmask |= PCF50633_INT1_ALARM;
+ pcf50633_write(pcf, PCF50633_REG_INT1M, 1, &irqmask);
+
+ ret = pcf50633_write(pcf, PCF50633_REG_RTCSCA,
+ PCF50633_TI_EXTENT, &pcf_tm.time[0]);
+ if (ret)
+ dev_err(dev, "Failed to write alarm time :-( %d\n", ret);
+
+ if (alrm->enabled) {
+ /* (re-)enaable alarm interrupt */
+ pcf50633_read(pcf, PCF50633_REG_INT1M, 1, &irqmask);
+ irqmask &= ~PCF50633_INT1_ALARM;
+ pcf50633_write(pcf, PCF50633_REG_INT1M, 1, &irqmask);
+ }
+
+ mutex_unlock(&pcf->lock);
+
+ /* FIXME */
+ return 0;
+}
+static struct rtc_class_ops pcf50633_rtc_ops = {
+ .ioctl = pcf50633_rtc_ioctl,
+ .read_time = pcf50633_rtc_read_time,
+ .set_time = pcf50633_rtc_set_time,
+ .read_alarm = pcf50633_rtc_read_alarm,
+ .set_alarm = pcf50633_rtc_set_alarm,
+};
+
+static int pcf50633_rtc_probe(struct platform_device *pdev)
+{
+ struct rtc_device *rtc;
+
+ rtc = rtc_device_register("pcf50633", &pdev->dev,
+ &pcf50633_rtc_ops, THIS_MODULE);
+ if (IS_ERR(rtc))
+ return -ENODEV;
+
+ return 0;
+}
+
+static int pcf50633_rtc_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+
+static struct platform_driver pcf50633_rtc_driver = {
+ .driver = {
+ .name = "pcf50633-rtc",
+ },
+ .probe = pcf50633_rtc_probe,
+ .remove = __devexit_p(pcf50633_rtc_remove),
+};
+
+static int __init pcf50633_rtc_init(void)
+{
+ return platform_driver_register(&pcf50633_rtc_driver);
+}
+module_init(pcf50633_rtc_init);
+
+static void __exit pcf50633_rtc_exit(void)
+{
+ platform_driver_unregister(&pcf50633_rtc_driver);
+}
+module_exit(pcf50633_rtc_exit);
+
+
+MODULE_DESCRIPTION("RTC driver for NXP PCF50633 power management unit");
+MODULE_AUTHOR("Balaji Rao <balajirrao@openmoko.org>");
+MODULE_LICENSE("GPL");
+