+static int pcf85063_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+ struct pcf85063 *pcf85063 = dev_get_drvdata(dev);
+ u8 buf[4];
+ unsigned int val;
+ int ret;
+
+ ret = regmap_bulk_read(pcf85063->regmap, PCF85063_REG_ALM_S,
+ buf, sizeof(buf));
+ if (ret)
+ return ret;
+
+ alrm->time.tm_sec = bcd2bin(buf[0]);
+ alrm->time.tm_min = bcd2bin(buf[1]);
+ alrm->time.tm_hour = bcd2bin(buf[2]);
+ alrm->time.tm_mday = bcd2bin(buf[3]);
+
+ ret = regmap_read(pcf85063->regmap, PCF85063_REG_CTRL2, &val);
+ if (ret)
+ return ret;
+
+ alrm->enabled = !!(val & PCF85063_CTRL2_AIE);
+
+ return 0;
+}
+
+static int pcf85063_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+ struct pcf85063 *pcf85063 = dev_get_drvdata(dev);
+ u8 buf[5];
+ int ret;
+
+ buf[0] = bin2bcd(alrm->time.tm_sec);
+ buf[1] = bin2bcd(alrm->time.tm_min);
+ buf[2] = bin2bcd(alrm->time.tm_hour);
+ buf[3] = bin2bcd(alrm->time.tm_mday);
+ buf[4] = PCF85063_AEN; /* Do not match on week day */
+
+ ret = regmap_update_bits(pcf85063->regmap, PCF85063_REG_CTRL2,
+ PCF85063_CTRL2_AIE | PCF85063_CTRL2_AF, 0);
+ if (ret)
+ return ret;
+
+ ret = regmap_bulk_write(pcf85063->regmap, PCF85063_REG_ALM_S,
+ buf, sizeof(buf));
+ if (ret)
+ return ret;
+
+ return regmap_update_bits(pcf85063->regmap, PCF85063_REG_CTRL2,
+ PCF85063_CTRL2_AIE | PCF85063_CTRL2_AF,
+ alrm->enabled ? PCF85063_CTRL2_AIE | PCF85063_CTRL2_AF : PCF85063_CTRL2_AF);
+}
+
+static int pcf85063_rtc_alarm_irq_enable(struct device *dev,
+ unsigned int enabled)
+{
+ struct pcf85063 *pcf85063 = dev_get_drvdata(dev);
+
+ return regmap_update_bits(pcf85063->regmap, PCF85063_REG_CTRL2,
+ PCF85063_CTRL2_AIE,
+ enabled ? PCF85063_CTRL2_AIE : 0);
+}
+
+static irqreturn_t pcf85063_rtc_handle_irq(int irq, void *dev_id)
+{
+ struct pcf85063 *pcf85063 = dev_id;
+ unsigned int val;
+ int err;
+
+ err = regmap_read(pcf85063->regmap, PCF85063_REG_CTRL2, &val);
+ if (err)
+ return IRQ_NONE;
+
+ if (val & PCF85063_CTRL2_AF) {
+ rtc_update_irq(pcf85063->rtc, 1, RTC_IRQF | RTC_AF);
+ regmap_update_bits(pcf85063->regmap, PCF85063_REG_CTRL2,
+ PCF85063_CTRL2_AIE | PCF85063_CTRL2_AF,
+ 0);
+ return IRQ_HANDLED;
+ }
+
+ return IRQ_NONE;
+}
+