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Commit 503f1631 authored by Steve Longerbeam's avatar Steve Longerbeam Committed by Philipp Zabel
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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: default avatarPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: default avatarSteve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: default avatarPhilipp Zabel <p.zabel@pengutronix.de>
parent b6835a71

drivers/gpu/ipu-v3/ipu-di.c

+3 −6
Original line number Diff line number Diff line
@@ -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;