--- zzzz-none-000/linux-3.10.107/drivers/clk/mxs/clk-frac.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/clk/mxs/clk-frac.c	2021-02-04 17:41:59.000000000 +0000
@@ -9,7 +9,6 @@
  * http://www.gnu.org/copyleft/gpl.html
  */
 
-#include <linux/clk.h>
 #include <linux/clk-provider.h>
 #include <linux/err.h>
 #include <linux/io.h>
@@ -42,11 +41,13 @@
 {
 	struct clk_frac *frac = to_clk_frac(hw);
 	u32 div;
+	u64 tmp_rate;
 
 	div = readl_relaxed(frac->reg) >> frac->shift;
 	div &= (1 << frac->width) - 1;
 
-	return (parent_rate >> frac->width) * div;
+	tmp_rate = (u64)parent_rate * div;
+	return tmp_rate >> frac->width;
 }
 
 static long clk_frac_round_rate(struct clk_hw *hw, unsigned long rate,
@@ -55,7 +56,7 @@
 	struct clk_frac *frac = to_clk_frac(hw);
 	unsigned long parent_rate = *prate;
 	u32 div;
-	u64 tmp;
+	u64 tmp, tmp_rate, result;
 
 	if (rate > parent_rate)
 		return -EINVAL;
@@ -68,7 +69,11 @@
 	if (!div)
 		return -EINVAL;
 
-	return (parent_rate >> frac->width) * div;
+	tmp_rate = (u64)parent_rate * div;
+	result = tmp_rate >> frac->width;
+	if ((result << frac->width) < tmp_rate)
+		result += 1;
+	return result;
 }
 
 static int clk_frac_set_rate(struct clk_hw *hw, unsigned long rate,