rtc: pcf2127: add support for PCF2131 RTC

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This RTC is very similar in functionality to the PCF2127/29.

Basically it:
  -supports two new control registers at offsets 4 and 5
  -supports a new reset register (not implemented in this driver)
  -supports 4 tamper detection functions instead of 1
  -has no nvmem (like the PCF2129)
  -has two output interrupt pins

Because of that, most of the register addresses are very different,
although they still follow the same layout. For example, the tamper
registers have a different base address, but the offsets are all the same.

Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Link: https://lore.kernel.org/r/20230622145800.2442116-12-hugo@hugovil.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

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This commit is contained in:

Hugo Villeneuve 2023-06-22 10:57:54 -04:00 • committed by Alexandre Belloni

parent 420cc9e850

commit afc505bf90

2 changed files with 215 additions and 23 deletions

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4

drivers/rtc/Kconfig

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234

drivers/rtc/rtc-pcf2127.c

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