diff options
| author | Brian Masney <bmasney@redhat.com> | 2025-07-10 11:20:21 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-08-15 16:39:17 +0200 |
| commit | ed9718fb5472efa9f69d57e0e65986671d9cb8b0 (patch) | |
| tree | 9b2e9b78c56500c52a77f273aeecdc4350065af8 | |
| parent | 1ced449b053d798ee65a12aeef52cddf7b6aabb1 (diff) | |
rtc: ds1307: fix incorrect maximum clock rate handling
[ Upstream commit cf6eb547a24af7ad7bbd2abe9c5327f956bbeae8 ]
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: 6c6ff145b3346 ("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>
| -rw-r--r-- | drivers/rtc/rtc-ds1307.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c index 5efbe69bf5ca..c8a666de9cbe 100644 --- a/drivers/rtc/rtc-ds1307.c +++ b/drivers/rtc/rtc-ds1307.c @@ -1466,7 +1466,7 @@ static long ds3231_clk_sqw_round_rate(struct clk_hw *hw, unsigned long rate, return ds3231_clk_sqw_rates[i]; } - return 0; + return ds3231_clk_sqw_rates[ARRAY_SIZE(ds3231_clk_sqw_rates) - 1]; } static int ds3231_clk_sqw_set_rate(struct clk_hw *hw, unsigned long rate, |