[PATCH v3 2/4] pinctrl: amd: use higher precision for 512 RtcClk

[Coiby Xu <coiby.xu@xxxxxxxxx>]

RTC is 32.768kHz thus 512 RtcClk equals 15625 usec. The documentation
likely has dropped precision and that's why the driver mistakenly took
the slightly deviated value.

Reported-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
Suggested-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
Suggested-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Reviewed-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
Link: https://lore.kernel.org/linux-gpio/2f4706a1-502f-75f0-9596-cc25b4933b6c@xxxxxxxxxx/
Signed-off-by: Coiby Xu <coiby.xu@xxxxxxxxx>
---
 drivers/pinctrl/pinctrl-amd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pinctrl/pinctrl-amd.c b/drivers/pinctrl/pinctrl-amd.c
index d6b2b4bd337c..4aea3e05e8c6 100644
--- a/drivers/pinctrl/pinctrl-amd.c
+++ b/drivers/pinctrl/pinctrl-amd.c
@@ -156,7 +156,7 @@ static int amd_gpio_set_debounce(struct gpio_chip *gc, unsigned offset,
 			pin_reg |= BIT(DB_TMR_OUT_UNIT_OFF);
 			pin_reg &= ~BIT(DB_TMR_LARGE_OFF);
 		} else if (debounce < 250000) {
-			time = debounce / 15600;
+			time = debounce / 15625;
 			pin_reg |= time & DB_TMR_OUT_MASK;
 			pin_reg &= ~BIT(DB_TMR_OUT_UNIT_OFF);
 			pin_reg |= BIT(DB_TMR_LARGE_OFF);
-- 
2.28.0