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rtc: hym8563: fix incorrect maximum clock rate handling

When hym8563_clkout_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: dcaf038493525 ("rtc: add hym8563 rtc-driver")
Signed-off-by: Brian Masney <bmasney@redhat.com>
Link: https://lore.kernel.org/r/20250710-rtc-clk-round-rate-v1-2-33140bb2278e@redhat.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

authored by

Brian Masney and committed by
Alexandre Belloni d0a518eb cf6eb547

+1 -1
+1 -1
drivers/rtc/rtc-hym8563.c
··· 294 294 if (clkout_rates[i] <= rate) 295 295 return clkout_rates[i]; 296 296 297 - return 0; 297 + return clkout_rates[0]; 298 298 } 299 299 300 300 static int hym8563_clkout_set_rate(struct clk_hw *hw, unsigned long rate,