linux-imx
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committed 14813760724x
return ret; /* Start back RTC and restore previous value of EXTOSC bit. * There is no need to clear EXTOSC bit when the previous value was 0 * because it was already cleared when stopping the RTC oscillator. */ ret = mcp795_start_oscillator(dev, extosc ? &extosc : NULL); if (ret) return ret; dev_dbg(dev, "Set mcp795: %04d-%02d-%02d(%d) %02d:%02d:%02d\n", tim->tm_year + 1900, tim->tm_mon, tim->tm_mday, tim->tm_wday, tim->tm_hour, tim->tm_min, tim->tm_sec); dev_dbg(dev, "Set mcp795: %ptR\n", tim); return 0;}static int mcp795_read_time(struct device *dev, struct rtc_time *tim){ int ret; u8 data[7]; ret = mcp795_rtcc_read(dev, MCP795_REG_SECONDS, data, sizeof(data)); return ret; tim->tm_sec = bcd2bin(data[0] & 0x7F); tim->tm_min = bcd2bin(data[1] & 0x7F); tim->tm_hour = bcd2bin(data[2] & 0x3F); tim->tm_wday = bcd2bin(data[3] & 0x07) - 1; tim->tm_mday = bcd2bin(data[4] & 0x3F); tim->tm_mon = bcd2bin(data[5] & 0x1F) - 1; tim->tm_year = bcd2bin(data[6]) + 100; /* Assume we are in 20xx */ dev_dbg(dev, "Read from mcp795: %04d-%02d-%02d(%d) %02d:%02d:%02d\n", tim->tm_year + 1900, tim->tm_mon, tim->tm_mday, tim->tm_wday, tim->tm_hour, tim->tm_min, tim->tm_sec); dev_dbg(dev, "Read from mcp795: %ptR\n", tim); return 0;}static int mcp795_set_alarm(struct device *dev, struct rtc_wkalrm *alm){ struct rtc_time now_tm; time64_t now; time64_t later; u8 tmp[6]; if (ret) return ret; /* enable alarm if requested */ if (alm->enabled) { ret = mcp795_update_alarm(dev, true); if (ret) return ret; dev_dbg(dev, "Alarm IRQ armed\n"); } dev_dbg(dev, "Set alarm: %02d-%02d(%d) %02d:%02d:%02d\n", alm->time.tm_mon, alm->time.tm_mday, alm->time.tm_wday, alm->time.tm_hour, alm->time.tm_min, alm->time.tm_sec); dev_dbg(dev, "Set alarm: %ptRdr(%d) %ptRt\n", &alm->time, alm->time.tm_wday, &alm->time); return 0;}static int mcp795_read_alarm(struct device *dev, struct rtc_wkalrm *alm){ u8 data[6]; int ret; ret = mcp795_rtcc_read( dev, MCP795_REG_ALM0_SECONDS, data, sizeof(data)); alm->time.tm_sec = bcd2bin(data[0] & 0x7F); alm->time.tm_min = bcd2bin(data[1] & 0x7F); alm->time.tm_hour = bcd2bin(data[2] & 0x1F); alm->time.tm_wday = bcd2bin(data[3] & 0x07) - 1; alm->time.tm_mday = bcd2bin(data[4] & 0x3F); alm->time.tm_mon = bcd2bin(data[5] & 0x1F) - 1; alm->time.tm_year = -1; alm->time.tm_isdst = -1; alm->time.tm_yday = -1; dev_dbg(dev, "Read alarm: %02d-%02d(%d) %02d:%02d:%02d\n", alm->time.tm_mon, alm->time.tm_mday, alm->time.tm_wday, alm->time.tm_hour, alm->time.tm_min, alm->time.tm_sec); dev_dbg(dev, "Read alarm: %ptRdr(%d) %ptRt\n", &alm->time, alm->time.tm_wday, &alm->time); return 0;}static int mcp795_alarm_irq_enable(struct device *dev, unsigned int enabled){ return mcp795_update_alarm(dev, !!enabled);}static irqreturn_t mcp795_irq(int irq, void *data){