[U-Boot] [PATCH 0/3] Update RV3029 driver to DM and add DM-backed bootcount support

[Philipp Tomsich]

On one of our application-specific carrier boards, a MicroCrystal
RV3029 acts as an off-module battery-backed RTC for the RK3399-Q7.
The RV3029 is intended both to provide RTC services (to Linux) and
to store the bootcount in its battery-backed SRAM section.

To support this use-case, this series adds the following:
 * replaces the existing RV3029 driver by a DM-based one (note that the
   existing driver appears unused and didn't even have a Kconfig entry)
   that closely mirrors its incarnation in Linux 4.17
 * adds a bootcount-method interfacing back into DM devices (implementing
   support for the RTC uclass as of now).



Philipp Tomsich (3):
  rtc: rv3029: add to Kconfig
  rtc: rv3029: update to support DM and sync with Linux 4.17
  bootcount: add DM-based backing store for bootcount

 doc/device-tree-bindings/chosen.txt |  27 ++
 drivers/bootcount/Kconfig           |  12 +
 drivers/bootcount/Makefile          |   1 +
 drivers/bootcount/bootcount_dm.c    |  93 ++++++
 drivers/rtc/Kconfig                 |  10 +
 drivers/rtc/rv3029.c                | 579 +++++++++++++++++++++++++++---------
 scripts/config_whitelist.txt        |   1 -
 7 files changed, 585 insertions(+), 138 deletions(-)
 create mode 100644 drivers/bootcount/bootcount_dm.c

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2.1.4