diff options
author | Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com> | 2016-04-27 04:07:08 -0300 |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2016-06-09 15:58:32 -0300 |
commit | 917d11a4e0c8c9e3d375a7baa945fe0da6b15f88 (patch) | |
tree | 21488c9916d561b7ddd1039e010f81d39dae8942 /drivers/media/tuners | |
parent | d10f89cc36c3a302165d9d800ef97449793b9e6a (diff) | |
download | linux-917d11a4e0c8c9e3d375a7baa945fe0da6b15f88.tar.bz2 |
[media] mt2063: use lib gcd
This patch removes the local MT2063_gcd function, uses lib gcd instead
Signed-off-by: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/tuners')
-rw-r--r-- | drivers/media/tuners/mt2063.c | 30 |
1 files changed, 5 insertions, 25 deletions
diff --git a/drivers/media/tuners/mt2063.c b/drivers/media/tuners/mt2063.c index 6457ac91ef09..7f0b9d5940db 100644 --- a/drivers/media/tuners/mt2063.c +++ b/drivers/media/tuners/mt2063.c @@ -24,6 +24,7 @@ #include <linux/module.h> #include <linux/string.h> #include <linux/videodev2.h> +#include <linux/gcd.h> #include "mt2063.h" @@ -665,27 +666,6 @@ static u32 MT2063_ChooseFirstIF(struct MT2063_AvoidSpursData_t *pAS_Info) } /** - * gcd() - Uses Euclid's algorithm - * - * @u, @v: Unsigned values whose GCD is desired. - * - * Returns THE greatest common divisor of u and v, if either value is 0, - * the other value is returned as the result. - */ -static u32 MT2063_gcd(u32 u, u32 v) -{ - u32 r; - - while (v != 0) { - r = u % v; - u = v; - v = r; - } - - return u; -} - -/** * IsSpurInBand() - Checks to see if a spur will be present within the IF's * bandwidth. (fIFOut +/- fIFBW, -fIFOut +/- fIFBW) * @@ -731,12 +711,12 @@ static u32 IsSpurInBand(struct MT2063_AvoidSpursData_t *pAS_Info, ** of f_LO1, f_LO2 and the edge value. Use the larger of this ** gcd-based scale factor or f_Scale. */ - lo_gcd = MT2063_gcd(f_LO1, f_LO2); - gd_Scale = max((u32) MT2063_gcd(lo_gcd, d), f_Scale); + lo_gcd = gcd(f_LO1, f_LO2); + gd_Scale = max((u32) gcd(lo_gcd, d), f_Scale); hgds = gd_Scale / 2; - gc_Scale = max((u32) MT2063_gcd(lo_gcd, c), f_Scale); + gc_Scale = max((u32) gcd(lo_gcd, c), f_Scale); hgcs = gc_Scale / 2; - gf_Scale = max((u32) MT2063_gcd(lo_gcd, f), f_Scale); + gf_Scale = max((u32) gcd(lo_gcd, f), f_Scale); hgfs = gf_Scale / 2; n0 = DIV_ROUND_UP(f_LO2 - d, f_LO1 - f_LO2); |