[1/4] clk: zynqmp: Limit bestdiv with maxdiv

Commit Message

Jolly Shah March 2, 2020, 9:43 p.m. UTC

From: Rajan Vaja <[e-mail]>

Clock divider value should not be greater than maximum divider value.
So use minimum of best divider or maximum divider value.

Signed-off-by: Rajan Vaja <[e-mail]>
Signed-off-by: Jolly Shah <[e-mail]>
---
 drivers/clk/zynqmp/divider.c | 2 ++
 1 file changed, 2 insertions(+)

Patch

diff --git a/drivers/clk/zynqmp/divider.c b/drivers/clk/zynqmp/divider.c
index 973cdf0..7d2cb61 100644
--- a/drivers/clk/zynqmp/divider.c
+++ b/drivers/clk/zynqmp/divider.c
@@ -198,6 +198,8 @@  static long zynqmp_clk_divider_round_rate(struct clk_hw *hw,
 
 	if ((clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT) && divider->is_frac)
 		bestdiv = rate % *prate ? 1 : bestdiv;
+
+	bestdiv = min_t(u32, bestdiv, divider->max_div);
 	*prate = rate * bestdiv;
 
 	return rate;