[PATCH 0/4] rtc: pcf8525: Add NXP PCF8525 RTC driver

[Shiv Prakash Gupta]

This series adds initial support for the NXP PCF8525 real-time clock.

The NXP PCF8525 is an I2C RTC with the following features:
- Time/date keeping (seconds to years, BCD encoded)
- Alarm with interrupt support on INTA
- Two hardware timestamps (TS1/TS2) exposed via sysfs
- Crystal aging offset correction via the RTC offset interface
- Battery backup with configurable backup switch mode (BSM)
- Optional watchdog timer on INTB
- Optional temperature sensor via hwmon

Patch 1 adds the devicetree binding document (YAML schema).
Patch 2 adds the core RTC driver with time, alarm, timestamp,
        aging offset, and backup switch mode support.
Patch 3 adds optional watchdog support via Watchdog Core on INTB.
Patch 4 adds optional temperature sensor support via hwmon.

Shiv Prakash Gupta (4):
  dt-bindings: rtc: Add NXP PCF8525 RTC
  rtc: pcf8525: Add NXP PCF8525 RTC driver
  rtc: pcf8525: Add watchdog support
  rtc: pcf8525: Add temperature sensor support via hwmon

 .../devicetree/bindings/rtc/nxp,pcf8525.yaml  |   86 ++
 drivers/rtc/Kconfig                           |   26 +
 drivers/rtc/Makefile                          |    1 +
 drivers/rtc/rtc-pcf8525.c                     | 1366 +++++++++++++++++
 4 files changed, 1479 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/rtc/nxp,pcf8525.yaml
 create mode 100644 drivers/rtc/rtc-pcf8525.c

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2.34.1