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authorJulia Lawall <julia@diku.dk>2008-04-28 05:14:51 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-28 11:58:35 -0400
commit416e74ea7813597b586eafc24f67779eeb86e12f (patch)
treeddb2312349310de0e7a045c6d81bf79d72ed2d0c /drivers/video/gxt4500.c
parent7f29b87a7779505288a31df16ba84a85fc1ae93c (diff)
fbdev: use DIV_ROUND_UP or roundup
The kernel.h macro DIV_ROUND_UP performs the computation (((n) + (d) - 1) / (d)) but is perhaps more readable. An extract of the semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @haskernel@ @@ #include <linux/kernel.h> @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) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/video/gxt4500.c')
-rw-r--r--drivers/video/gxt4500.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/video/gxt4500.c b/drivers/video/gxt4500.c
index e92337bef50d..564557792bed 100644
--- a/drivers/video/gxt4500.c
+++ b/drivers/video/gxt4500.c
@@ -238,7 +238,7 @@ static int calc_pll(int period_ps, struct gxt4500_par *par)
238 for (pdiv1 = 1; pdiv1 <= 8; ++pdiv1) { 238 for (pdiv1 = 1; pdiv1 <= 8; ++pdiv1) {
239 for (pdiv2 = 1; pdiv2 <= pdiv1; ++pdiv2) { 239 for (pdiv2 = 1; pdiv2 <= pdiv1; ++pdiv2) {
240 postdiv = pdiv1 * pdiv2; 240 postdiv = pdiv1 * pdiv2;
241 pll_period = (period_ps + postdiv - 1) / postdiv; 241 pll_period = DIV_ROUND_UP(period_ps, postdiv);
242 /* keep pll in range 350..600 MHz */ 242 /* keep pll in range 350..600 MHz */
243 if (pll_period < 1666 || pll_period > 2857) 243 if (pll_period < 1666 || pll_period > 2857)
244 continue; 244 continue;