mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-15 16:24:13 +08:00
[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>
This commit is contained in:
parent
d10f89cc36
commit
917d11a4e0
@ -24,6 +24,7 @@
|
|||||||
#include <linux/module.h>
|
#include <linux/module.h>
|
||||||
#include <linux/string.h>
|
#include <linux/string.h>
|
||||||
#include <linux/videodev2.h>
|
#include <linux/videodev2.h>
|
||||||
|
#include <linux/gcd.h>
|
||||||
|
|
||||||
#include "mt2063.h"
|
#include "mt2063.h"
|
||||||
|
|
||||||
@ -664,27 +665,6 @@ static u32 MT2063_ChooseFirstIF(struct MT2063_AvoidSpursData_t *pAS_Info)
|
|||||||
return f_Center + (bestDiff * f_Step);
|
return f_Center + (bestDiff * f_Step);
|
||||||
}
|
}
|
||||||
|
|
||||||
/**
|
|
||||||
* 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
|
* IsSpurInBand() - Checks to see if a spur will be present within the IF's
|
||||||
* bandwidth. (fIFOut +/- fIFBW, -fIFOut +/- fIFBW)
|
* 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
|
** of f_LO1, f_LO2 and the edge value. Use the larger of this
|
||||||
** gcd-based scale factor or f_Scale.
|
** gcd-based scale factor or f_Scale.
|
||||||
*/
|
*/
|
||||||
lo_gcd = MT2063_gcd(f_LO1, f_LO2);
|
lo_gcd = gcd(f_LO1, f_LO2);
|
||||||
gd_Scale = max((u32) MT2063_gcd(lo_gcd, d), f_Scale);
|
gd_Scale = max((u32) gcd(lo_gcd, d), f_Scale);
|
||||||
hgds = gd_Scale / 2;
|
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;
|
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;
|
hgfs = gf_Scale / 2;
|
||||||
|
|
||||||
n0 = DIV_ROUND_UP(f_LO2 - d, f_LO1 - f_LO2);
|
n0 = DIV_ROUND_UP(f_LO2 - d, f_LO1 - f_LO2);
|
||||||
|
Loading…
Reference in New Issue
Block a user