We can use the DIV_ROUND_CLOSEST() macro when calculating the DI
clock divider, rounded to nearest int.
Suggested-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Steve Longerbeam <redacted>
---
drivers/gpu/ipu-v3/ipu-di.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/ipu-v3/ipu-di.c b/drivers/gpu/ipu-v3/ipu-di.c
index d95fbd0..b61d6be 100644
--- a/drivers/gpu/ipu-v3/ipu-di.c
+++ b/drivers/gpu/ipu-v3/ipu-di.c
@@ -440,8 +440,7 @@ static void ipu_di_config_clock(struct ipu_di *di,
clk_set_rate(clk, sig->mode.pixelclock);
in_rate = clk_get_rate(clk);
- div = (in_rate + sig->mode.pixelclock / 2) /
- sig->mode.pixelclock;
+ div = DIV_ROUND_CLOSEST(in_rate, sig->mode.pixelclock);
if (div = 0)
div = 1;
@@ -459,8 +458,7 @@ static void ipu_di_config_clock(struct ipu_di *di,
unsigned div, error;
clkrate = clk_get_rate(di->clk_ipu);
- div = (clkrate + sig->mode.pixelclock / 2) /
- sig->mode.pixelclock;
+ div = DIV_ROUND_CLOSEST(clkrate, sig->mode.pixelclock);
rate = clkrate / div;
error = rate / (sig->mode.pixelclock / 1000);
@@ -482,8 +480,7 @@ static void ipu_di_config_clock(struct ipu_di *di,
clk_set_rate(clk, sig->mode.pixelclock);
in_rate = clk_get_rate(clk);
- div = (in_rate + sig->mode.pixelclock / 2) /
- sig->mode.pixelclock;
+ div = DIV_ROUND_CLOSEST(in_rate, sig->mode.pixelclock);
if (div = 0)
div = 1;
--
1.7.9.5