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path: root/drivers/rtc/rtc-da9063.c
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Diffstat (limited to 'drivers/rtc/rtc-da9063.c')
-rw-r--r--drivers/rtc/rtc-da9063.c54
1 files changed, 37 insertions, 17 deletions
diff --git a/drivers/rtc/rtc-da9063.c b/drivers/rtc/rtc-da9063.c
index 595393098b09..731ed1a97f59 100644
--- a/drivers/rtc/rtc-da9063.c
+++ b/drivers/rtc/rtc-da9063.c
@@ -29,6 +29,8 @@
#define YEARS_FROM_DA9063(year) ((year) + 100)
#define MONTHS_FROM_DA9063(month) ((month) - 1)
+#define RTC_ALARM_DATA_LEN (DA9063_AD_REG_ALARM_Y - DA9063_AD_REG_ALARM_MI + 1)
+
#define RTC_DATA_LEN (DA9063_REG_COUNT_Y - DA9063_REG_COUNT_S + 1)
#define RTC_SEC 0
#define RTC_MIN 1
@@ -42,6 +44,10 @@ struct da9063_rtc {
struct da9063 *hw;
struct rtc_time alarm_time;
bool rtc_sync;
+ int alarm_year;
+ int alarm_start;
+ int alarm_len;
+ int data_start;
};
static void da9063_data_to_tm(u8 *data, struct rtc_time *tm)
@@ -83,7 +89,7 @@ static int da9063_rtc_stop_alarm(struct device *dev)
{
struct da9063_rtc *rtc = dev_get_drvdata(dev);
- return regmap_update_bits(rtc->hw->regmap, DA9063_REG_ALARM_Y,
+ return regmap_update_bits(rtc->hw->regmap, rtc->alarm_year,
DA9063_ALARM_ON, 0);
}
@@ -91,7 +97,7 @@ static int da9063_rtc_start_alarm(struct device *dev)
{
struct da9063_rtc *rtc = dev_get_drvdata(dev);
- return regmap_update_bits(rtc->hw->regmap, DA9063_REG_ALARM_Y,
+ return regmap_update_bits(rtc->hw->regmap, rtc->alarm_year,
DA9063_ALARM_ON, DA9063_ALARM_ON);
}
@@ -151,8 +157,9 @@ static int da9063_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
int ret;
unsigned int val;
- ret = regmap_bulk_read(rtc->hw->regmap, DA9063_REG_ALARM_S,
- &data[RTC_SEC], RTC_DATA_LEN);
+ data[RTC_SEC] = 0;
+ ret = regmap_bulk_read(rtc->hw->regmap, rtc->alarm_start,
+ &data[rtc->data_start], rtc->alarm_len);
if (ret < 0)
return ret;
@@ -186,14 +193,14 @@ static int da9063_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
return ret;
}
- ret = regmap_bulk_write(rtc->hw->regmap, DA9063_REG_ALARM_S,
- data, RTC_DATA_LEN);
+ ret = regmap_bulk_write(rtc->hw->regmap, rtc->alarm_start,
+ &data[rtc->data_start], rtc->alarm_len);
if (ret < 0) {
dev_err(dev, "Failed to write alarm: %d\n", ret);
return ret;
}
- rtc->alarm_time = alrm->time;
+ da9063_data_to_tm(data, &rtc->alarm_time);
if (alrm->enabled) {
ret = da9063_rtc_start_alarm(dev);
@@ -218,7 +225,7 @@ static irqreturn_t da9063_alarm_event(int irq, void *data)
{
struct da9063_rtc *rtc = data;
- regmap_update_bits(rtc->hw->regmap, DA9063_REG_ALARM_Y,
+ regmap_update_bits(rtc->hw->regmap, rtc->alarm_year,
DA9063_ALARM_ON, 0);
rtc->rtc_sync = true;
@@ -257,7 +264,23 @@ static int da9063_rtc_probe(struct platform_device *pdev)
goto err;
}
- ret = regmap_update_bits(da9063->regmap, DA9063_REG_ALARM_S,
+ rtc = devm_kzalloc(&pdev->dev, sizeof(*rtc), GFP_KERNEL);
+ if (!rtc)
+ return -ENOMEM;
+
+ if (da9063->variant_code == PMIC_DA9063_AD) {
+ rtc->alarm_year = DA9063_AD_REG_ALARM_Y;
+ rtc->alarm_start = DA9063_AD_REG_ALARM_MI;
+ rtc->alarm_len = RTC_ALARM_DATA_LEN;
+ rtc->data_start = RTC_MIN;
+ } else {
+ rtc->alarm_year = DA9063_BB_REG_ALARM_Y;
+ rtc->alarm_start = DA9063_BB_REG_ALARM_S;
+ rtc->alarm_len = RTC_DATA_LEN;
+ rtc->data_start = RTC_SEC;
+ }
+
+ ret = regmap_update_bits(da9063->regmap, rtc->alarm_start,
DA9063_ALARM_STATUS_TICK | DA9063_ALARM_STATUS_ALARM,
0);
if (ret < 0) {
@@ -265,7 +288,7 @@ static int da9063_rtc_probe(struct platform_device *pdev)
goto err;
}
- ret = regmap_update_bits(da9063->regmap, DA9063_REG_ALARM_S,
+ ret = regmap_update_bits(da9063->regmap, rtc->alarm_start,
DA9063_ALARM_STATUS_ALARM,
DA9063_ALARM_STATUS_ALARM);
if (ret < 0) {
@@ -273,25 +296,22 @@ static int da9063_rtc_probe(struct platform_device *pdev)
goto err;
}
- ret = regmap_update_bits(da9063->regmap, DA9063_REG_ALARM_Y,
+ ret = regmap_update_bits(da9063->regmap, rtc->alarm_year,
DA9063_TICK_ON, 0);
if (ret < 0) {
dev_err(&pdev->dev, "Failed to disable TICKs\n");
goto err;
}
- ret = regmap_bulk_read(da9063->regmap, DA9063_REG_ALARM_S,
- data, RTC_DATA_LEN);
+ data[RTC_SEC] = 0;
+ ret = regmap_bulk_read(da9063->regmap, rtc->alarm_start,
+ &data[rtc->data_start], rtc->alarm_len);
if (ret < 0) {
dev_err(&pdev->dev, "Failed to read initial alarm data: %d\n",
ret);
goto err;
}
- rtc = devm_kzalloc(&pdev->dev, sizeof(*rtc), GFP_KERNEL);
- if (!rtc)
- return -ENOMEM;
-
platform_set_drvdata(pdev, rtc);
irq_alarm = platform_get_irq_byname(pdev, "ALARM");