From ffceca8c1739938b58cdc5ce375d33a13150f7af Mon Sep 17 00:00:00 2001 From: Tapasweni Pathak Date: Wed, 8 Oct 2014 22:56:15 +0530 Subject: [PATCH] staging: iio: adc: use DIV_ROUND_UP The kernel.h macro DIV_ROUND_UP performs the computation (((n) + (d) - 1) / (d)) but is perhaps more readable. Coccinelle script used : // @haskernel@ @@ @depends on haskernel@ expression n,d; @@ ( - (n + d - 1) / d + DIV_ROUND_UP(n,d) | - (n + (d - 1)) / d + DIV_ROUND_UP(n,d) ) @depends on haskernel@ expression n,d; @@ - DIV_ROUND_UP((n),d) + DIV_ROUND_UP(n,d) @depends on haskernel@ expression n,d; @@ - DIV_ROUND_UP(n,(d)) + DIV_ROUND_UP(n,d) // Signed-off-by: Tapasweni Pathak Signed-off-by: Greg Kroah-Hartman --- drivers/staging/iio/adc/spear_adc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/iio/adc/spear_adc.c b/drivers/staging/iio/adc/spear_adc.c index c5492ba50751..67a364c2e794 100644 --- a/drivers/staging/iio/adc/spear_adc.c +++ b/drivers/staging/iio/adc/spear_adc.c @@ -98,7 +98,7 @@ static void spear_adc_set_clk(struct spear_adc_state *st, u32 val) u32 clk_high, clk_low, count; u32 apb_clk = clk_get_rate(st->clk); - count = (apb_clk + val - 1) / val; + count = DIV_ROUND_UP(apb_clk, val); clk_low = count / 2; clk_high = count - clk_low; st->current_clk = apb_clk / count; -- 2.34.1