From 503f1631ae8f42a386193c92cc4488d35978352e Mon Sep 17 00:00:00 2001 From: Steve Longerbeam Date: Thu, 18 Dec 2014 18:00:26 -0800 Subject: [PATCH] gpu: ipu-di: Switch to DIV_ROUND_CLOSEST for DI clock divider calc We can use the DIV_ROUND_CLOSEST() macro when calculating the DI clock divider, rounded to nearest int. Suggested-by: Philipp Zabel Signed-off-by: Steve Longerbeam Signed-off-by: Philipp Zabel --- 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 d95fbd0f6952..b61d6be97602 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; -- 2.34.1