--- zzzz-none-000/linux-4.4.60/drivers/clk/qcom/clk-regmap-mux.c	2017-04-08 07:53:53.000000000 +0000
+++ scorpion-1750e-727/linux-4.4.60/drivers/clk/qcom/clk-regmap-mux.c	2021-02-04 17:41:59.000000000 +0000
@@ -27,14 +27,21 @@
 {
 	struct clk_regmap_mux *mux = to_clk_regmap_mux(hw);
 	struct clk_regmap *clkr = to_clk_regmap(hw);
+	int num_parents = clk_hw_get_num_parents(hw);
 	unsigned int mask = GENMASK(mux->width - 1, 0);
-	unsigned int val;
+	unsigned int val, i;
 
 	regmap_read(clkr->regmap, mux->reg, &val);
 
 	val >>= mux->shift;
 	val &= mask;
 
+	if (mux->parent_map) {
+		for (i = 0; i < num_parents; i++)
+			if (val == mux->parent_map[i].cfg)
+				return i;
+	}
+
 	return val;
 }
 
@@ -45,6 +52,9 @@
 	unsigned int mask = GENMASK(mux->width + mux->shift - 1, mux->shift);
 	unsigned int val;
 
+	if (mux->parent_map)
+		index = mux->parent_map[index].cfg;
+
 	val = index;
 	val <<= mux->shift;