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[media] tua9001: use div_u64() for frequency calculation

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Use div_u64() to simplify and remove home made divides.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Antti Palosaari 2015-04-16 07:36:51 -03:00 committed by Mauro Carvalho Chehab
parent dd219a87e4
commit 47f95dbdb3
2 changed files with 2 additions and 8 deletions
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9
drivers/media/tuners/tua9001.c
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@ -88,7 +88,6 @@ static int tua9001_set_params(struct dvb_frontend *fe)
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret, i;
u16 val;
u32 frequency;
struct tua9001_reg_val data[2];
dev_dbg(&client->dev,
@ -122,14 +121,8 @@ static int tua9001_set_params(struct dvb_frontend *fe)
data[0].reg = 0x04;
data[0].val = val;
frequency = (c->frequency - 150000000);
frequency /= 100;
frequency *= 48;
frequency /= 10000;
data[1].reg = 0x1f;
data[1].val = frequency;
data[1].val = div_u64((u64) (c->frequency - 150000000) * 48, 1000000);
if (fe->callback) {
ret = fe->callback(client->adapter,

1
drivers/media/tuners/tua9001_priv.h
View File

@ -18,6 +18,7 @@
#define TUA9001_PRIV_H
#include "tua9001.h"
#include <linux/math64.h>
#include <linux/regmap.h>
struct tua9001_reg_val {