clk: correct comments for __clk_determine_rate

Correct comments for __clk_determine_rate.

Signed-off-by: Peng Fan <van.freenix@gmail.com>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index df844a6..95b80ae 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -828,9 +828,7 @@
 /**
  * __clk_determine_rate - get the closest rate actually supported by a clock
  * @hw: determine the rate of this clock
- * @rate: target rate
- * @min_rate: returned rate must be greater than this rate
- * @max_rate: returned rate must be less than this rate
+ * @req: target rate request
  *
  * Useful for clk_ops such as .set_rate and .determine_rate.
  */