diff options
| author |   Antti Palosaari <crope@iki.fi> | 2015-04-16 07:36:51 -0300 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-05-18 15:55:14 -0300 |
| commit | 47f95dbdb3adefb927851c8737de66894f58b14d (patch) | |
| tree | 34ce1caa4f7c128da5f24a849008635ca7f17152 /drivers/media/tuners | |
| parent | [media] tua9001: use regmap for I2C register access (diff) | |
| download | linux-dev-47f95dbdb3adefb927851c8737de66894f58b14d.tar.xz linux-dev-47f95dbdb3adefb927851c8737de66894f58b14d.zip | |
[media] tua9001: use div_u64() for frequency calculation
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>
Diffstat (limited to 'drivers/media/tuners')
| -rw-r--r-- | drivers/media/tuners/tua9001.c | 9 | ||||
| -rw-r--r-- | 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 <linux/math64.h> #include <linux/regmap.h> struct tua9001_reg_val { |