From 47f95dbdb3adefb927851c8737de66894f58b14d Mon Sep 17 00:00:00 2001 From: Antti Palosaari Date: Thu, 16 Apr 2015 07:36:51 -0300 Subject: [PATCH] [media] tua9001: use div_u64() for frequency calculation Use div_u64() to simplify and remove home made divides. Signed-off-by: Antti Palosaari Signed-off-by: Mauro Carvalho Chehab --- drivers/media/tuners/tua9001.c | 9 +-------- drivers/media/tuners/tua9001_priv.h | 1 + 2 files changed, 2 insertions(+), 8 deletions(-) diff --git a/drivers/media/tuners/tua9001.c b/drivers/media/tuners/tua9001.c index 09a10349dd57..d4f6ca0c4d92 100644 --- a/drivers/media/tuners/tua9001.c +++ b/drivers/media/tuners/tua9001.c @@ -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, diff --git a/drivers/media/tuners/tua9001_priv.h b/drivers/media/tuners/tua9001_priv.h index 327ead9ea2ba..bc406c5ec69d 100644 --- a/drivers/media/tuners/tua9001_priv.h +++ b/drivers/media/tuners/tua9001_priv.h @@ -18,6 +18,7 @@ #define TUA9001_PRIV_H #include "tua9001.h" +#include #include struct tua9001_reg_val {