rtc: add dm_rtc_read helper and ->read method

Some users may want to read multiple consecutive 8-bit
registers. Instead of each caller having to implement the loop,
provide a dm_rtc_read() helper. Also, allow a driver to provide a
->read method, which can be more efficient than reading one register
at a time.

Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
Signed-off-by: Rasmus Villemoes <[email protected]>

0 files changed, 0 insertions, 0 deletions