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rtc: pcf85063: fix incorrect maximum clock rate handling

When pcf85063_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: 8c229ab6048b7 ("rtc: pcf85063: Add pcf85063 clkout control to common clock framework")
Signed-off-by: Brian Masney <bmasney@redhat.com>
Link: https://lore.kernel.org/r/20250710-rtc-clk-round-rate-v1-4-33140bb2278e@redhat.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

authored by

Brian Masney and committed by
Alexandre Belloni 186ae186 437c59e4

+1 -1
+1 -1
drivers/rtc/rtc-pcf85063.c
··· 414 414 if (clkout_rates[i] <= rate) 415 415 return clkout_rates[i]; 416 416 417 - return 0; 417 + return clkout_rates[0]; 418 418 } 419 419 420 420 static int pcf85063_clkout_set_rate(struct clk_hw *hw, unsigned long rate,