rtc: ds1307: fix incorrect maximum clock rate handling

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[ Upstream commit cf6eb547a2 ]

When ds3231_clk_sqw_round_rate() is called with a requested rate higher
than the highest supported rate, it currently returns 0, which disables
the clock. According to the clk API, round_rate() should instead return
the highest supported rate. Update the function to return the maximum
supported rate in this case.

Fixes: 6c6ff145b3 ("rtc: ds1307: add clock provider support for DS3231")
Signed-off-by: Brian Masney <bmasney@redhat.com>
Link: https://lore.kernel.org/r/20250710-rtc-clk-round-rate-v1-1-33140bb2278e@redhat.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Brian Masney 2025-07-10 11:20:21 -04:00 • committed by Greg Kroah-Hartman

parent 85eaa246ef

commit 226c69544b

1 changed files with 1 additions and 1 deletions

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drivers/rtc/rtc-ds1307.c

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