diff --git a/drivers/clk/rockchip/clk_rk3568.c b/drivers/clk/rockchip/clk_rk3568.c
index 999f48e..24eeca8 100644
--- a/drivers/clk/rockchip/clk_rk3568.c
+++ b/drivers/clk/rockchip/clk_rk3568.c
@@ -1527,28 +1527,20 @@
 	struct rk3568_cru *cru = priv->cru;
 	int src_clk;
 
-	switch (rate) {
-	case OSC_HZ:
-		src_clk = SCLK_SFC_SEL_24M;
-		break;
-	case 50 * MHz:
-		src_clk = SCLK_SFC_SEL_50M;
-		break;
-	case 75 * MHz:
-		src_clk = SCLK_SFC_SEL_75M;
-		break;
-	case 100 * MHz:
-		src_clk = SCLK_SFC_SEL_100M;
-		break;
-	case 125 * MHz:
-		src_clk = SCLK_SFC_SEL_125M;
-		break;
-	case 150 * MHz:
+	if (rate >= 150 * MHz)
 		src_clk = SCLK_SFC_SEL_150M;
-		break;
-	default:
+	else if (rate >= 125 * MHz)
+		src_clk = SCLK_SFC_SEL_125M;
+	else if (rate >= 100 * MHz)
+		src_clk = SCLK_SFC_SEL_100M;
+	else if (rate >= 75 * MHz)
+		src_clk = SCLK_SFC_SEL_75M;
+	else if (rate >= 50 * MHz)
+		src_clk = SCLK_SFC_SEL_50M;
+	else if (rate >= OSC_HZ)
+		src_clk = SCLK_SFC_SEL_24M;
+	else
 		return -ENOENT;
-	}
 
 	rk_clrsetreg(&cru->clksel_con[28],
 		     SCLK_SFC_SEL_MASK,