[PATCH v2 0/2] rtc: bq32000: Add settle delay for aggressive polling

[Adriana Stancu]

This series addresses a limitation in the TI BQ32000 RTC where aggressive
I2C polling (done by userspace tools like hwclock on systems where the
interrupt line is not connected to the CPU) can prevent the refresh of
RTC registers.

This results in stale data reads or select() timeouts in userspace. The
series introduces a configurable "settle delay" via device tree to ensure
that the hardware has sufficient idle time between read attempts.

Patch 1: Adds the "ti,read-settle-us" property to the YAML bindings.
Patch 2: Implements the delay in the driver using usleep_range.

Changes in v2:
- Expanded dt-binding property description to explain use case.
- Updated commit messages on dt change to describe the scenario when the
dt property would be necessary.
- Reword the commit messages to respect wrapping at 75 columns.

Adriana Stancu (2):
  dt-bindings: rtc: ti,bq32k: Add delay on rtc reads
  rtc: bq32000: add configurable delay between RTC reads

 .../devicetree/bindings/rtc/ti,bq32000.yaml   |  9 +++++
 drivers/rtc/rtc-bq32k.c                       | 34 +++++++++++++++----
 2 files changed, 37 insertions(+), 6 deletions(-)

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2.51.0