diff --git a/sys/dev/cpufreq/cpufreq_dt.c b/sys/dev/cpufreq/cpufreq_dt.c
--- a/sys/dev/cpufreq/cpufreq_dt.c
+++ b/sys/dev/cpufreq/cpufreq_dt.c
@@ -104,17 +104,26 @@
 cpufreq_dt_find_opp(device_t dev, uint64_t freq)
 {
 	struct cpufreq_dt_softc *sc;
-	ssize_t n;
+	uint64_t diff, best_diff;
+	ssize_t n, best_n;
 
 	sc = device_get_softc(dev);
 
+	diff = 0;
+	best_diff = ~0;
 	DPRINTF(dev, "Looking for freq %ju\n", freq);
-	for (n = 0; n < sc->nopp; n++)
-		if (CPUFREQ_CMP(sc->opp[n].freq, freq))
-			return (&sc->opp[n]);
+	for (n = 0; n < sc->nopp; n++) {
+		diff = abs64((int64_t)sc->opp[n].freq - (int64_t)freq);
+		DPRINTF(dev, "Testing %ju, diff is %ju\n", sc->opp[n].freq, diff);
+		if (diff < best_diff) {
+			best_diff = diff;
+			best_n = n;
+			DPRINTF(dev, "%ju is best for now\n", sc->opp[n].freq);
+		}
+	}
 
-	DPRINTF(dev, "Couldn't find one\n");
-	return (NULL);
+	DPRINTF(dev, "Will use %ju\n", sc->opp[best_n].freq);
+	return (&sc->opp[best_n]);
 }
 
 static void