[PATCH 1/2] video: ipuv3: use closest fractional divider

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Currently the divider is always rounded down, which may lead to a
rather big overshoot of the display clock. Try to match the clock
better by rounding to closest.

Signed-off-by: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
---
 drivers/video/imx-ipu-v3/ipu-di.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/video/imx-ipu-v3/ipu-di.c b/drivers/video/imx-ipu-v3/ipu-di.c
index b6e64fe16a85..5751c678b28e 100644
--- a/drivers/video/imx-ipu-v3/ipu-di.c
+++ b/drivers/video/imx-ipu-v3/ipu-di.c
@@ -140,10 +140,7 @@ static int ipu_di_clk_calc_div(unsigned long inrate, unsigned long outrate)
 	int div;
 
 	tmp *= 16;
-
-	do_div(tmp, outrate);
-
-	div = tmp;
+	div = DIV_ROUND_CLOSEST(tmp, outrate);
 
 	if (div < 0x10)
 		div = 0x10;
-- 
2.19.1


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