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-rw-r--r--drivers/clk/clk_kendryte.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/clk/clk_kendryte.c b/drivers/clk/clk_kendryte.c
index 69691c4a04c..97efda5b6f0 100644
--- a/drivers/clk/clk_kendryte.c
+++ b/drivers/clk/clk_kendryte.c
@@ -816,6 +816,30 @@ again:
i--;
}
+ /*
+ * Try looking back to see if there is a worse ratio
+ * that we could try anyway
+ */
+ while (i > 0) {
+ i--;
+ new_r = UNPACK_R(factors[i]);
+ new_od = UNPACK_OD(factors[i]);
+ /*
+ * Don't loop over factors for the same product
+ * to avoid getting stuck because of the above
+ * clause
+ */
+ if (r * od != new_r * new_od) {
+ if (new_r * new_od > last_r * last_od) {
+ r = new_r;
+ od = new_od;
+ swapped = false;
+ goto again;
+ }
+ break;
+ }
+ }
+
/* We ran out of things to try */
continue;
}