[PATCH v4 0/9] rtc: abx80x: add support for abx81x

[Antoni Pokusinski <apokusinski01@gmail.com>]

Hello,
This patch series adds support for the ABX81X RTCs, which are essentially
SPI versions of the ABX80X RTCs. The first patches (P2-P4) contain bug fixes 
(added after sashiko's review in v1-v3), then (P5-P8) we have some cleanup and
reorganization changes (converting the driver to use the regmap API was
needed for this), followed by the actual ABX81X support.

Kind regards,
Antoni Pokusinski


---
Changes since v3:
* PATCH 2 ("rtc: abx80x: fix error check after i2c_smbus_read in read_alarm()")
  New patch
* PATCH 3 ("rtc: abx80x: add mutex protection for register writes")
  Replaced "guard()" with "scoped_guard()" in "abx80x_ioctl()"
* PATCH 4 ("rtc: abx80x: properly handle shared IRQs")
  Disable all the unused interrupts in "probe()"
* PATCH 6 ("rtc: abx80x: use regmap instead of I2C specific API")
  Changed the type of "flag" arguments in "regmap_read()" from "int" to "unsigned int"
---
Changes since v2:
* dropped patch "rtc: abx80x: move part autodetection before RV1805 configuration"
* PATCH 2 ("rtc: abx80x: add mutex protection for register writes")
  New patch
* PATCH 5 ("rtc: abx80x: use regmap instead of I2C specific API")
  - return PTR_ERR(regmap) on I2C regmap init error
* PATCH 8 ("rtc: abx80x: add support for ABX81X")
  - return PTR_ERR(regmap) on SPI regmap init error
---
Changes since v1:
* PATCH 1 ("dt-bindings: rtc: abx80x: document ABX81X RTCs")
  - added missing "spi-peripherals-props" reference
  - added abx815 compatible strings to the trickle charger enum list
* PATCH 2 ("rtc: abx80x: move part autodetection before RV1805 configuration")
  New patch
* PATCH 3 ("rtc: abx80x: properly handle shared IRQs")
  New patch
* PATCH 5 ("rtc: abx80x: use regmap instead of I2C specific API")
  - changed regmap_read() argument types from `int` to `unsigned int`
---

Antoni Pokusinski (9):
  dt-bindings: rtc: abx80x: document ABX81X RTCs
  rtc: abx80x: fix error check after i2c_smbus_read in read_alarm()
  rtc: abx80x: add mutex protection for register writes
  rtc: abx80x: properly handle shared IRQs
  rtc: abx80x: add irq to struct abx80x_priv
  rtc: abx80x: use regmap instead of I2C specific API
  rtc: abx80x: replace read-modify-write pattern with regmap helpers
  rtc: abx80x: create abx80x_i2c_probe()
  rtc: abx80x: add support for ABX81X

 .../bindings/rtc/abracon,abx80x.yaml          |  18 +-
 drivers/rtc/Kconfig                           |  25 +-
 drivers/rtc/rtc-abx80x.c                      | 663 +++++++++++-------
 3 files changed, 451 insertions(+), 255 deletions(-)

-- 
2.55.0