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media: cxd2820r: use DIV_ROUND_CLOSEST_ULL()

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Now that the kernel provides DIV_ROUND_CLOSEST_ULL(), drop the internal
implementation and use the kernel one.

Signed-off-by: Javi Merino <javi.merino@arm.com>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Antti Palosaari <crope@iki.fi>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Javi Merino 2015-04-16 12:43:54 -07:00 committed by Linus Torvalds
parent ee3c86f356
commit 512eb720c9
5 changed files with 3 additions and 11 deletions
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2
drivers/media/dvb-frontends/cxd2820r_c.c
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@ -79,7 +79,7 @@ int cxd2820r_set_frontend_c(struct dvb_frontend *fe)
num = if_freq / 1000; /* Hz => kHz */
num *= 0x4000;
if_ctl = 0x4000 - cxd2820r_div_u64_round_closest(num, 41000);
if_ctl = 0x4000 - DIV_ROUND_CLOSEST_ULL(num, 41000);
buf[0] = (if_ctl >> 8) & 0x3f;
buf[1] = (if_ctl >> 0) & 0xff;

6
drivers/media/dvb-frontends/cxd2820r_core.c
View File

@ -244,12 +244,6 @@ int cxd2820r_gpio(struct dvb_frontend *fe, u8 *gpio)
return ret;
}
/* 64 bit div with round closest, like DIV_ROUND_CLOSEST but 64 bit */
u32 cxd2820r_div_u64_round_closest(u64 dividend, u32 divisor)
{
return div_u64(dividend + (divisor / 2), divisor);
}
static int cxd2820r_set_frontend(struct dvb_frontend *fe)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;

2
drivers/media/dvb-frontends/cxd2820r_priv.h
View File

@ -64,8 +64,6 @@ int cxd2820r_wr_reg_mask(struct cxd2820r_priv *priv, u32 reg, u8 val,
int cxd2820r_wr_regs(struct cxd2820r_priv *priv, u32 reginfo, u8 *val,
int len);
u32 cxd2820r_div_u64_round_closest(u64 dividend, u32 divisor);
int cxd2820r_wr_regs(struct cxd2820r_priv *priv, u32 reginfo, u8 *val,
int len);

2
drivers/media/dvb-frontends/cxd2820r_t.c
View File

@ -103,7 +103,7 @@ int cxd2820r_set_frontend_t(struct dvb_frontend *fe)
num = if_freq / 1000; /* Hz => kHz */
num *= 0x1000000;
if_ctl = cxd2820r_div_u64_round_closest(num, 41000);
if_ctl = DIV_ROUND_CLOSEST_ULL(num, 41000);
buf[0] = ((if_ctl >> 16) & 0xff);
buf[1] = ((if_ctl >> 8) & 0xff);
buf[2] = ((if_ctl >> 0) & 0xff);

2
drivers/media/dvb-frontends/cxd2820r_t2.c
View File

@ -120,7 +120,7 @@ int cxd2820r_set_frontend_t2(struct dvb_frontend *fe)
num = if_freq / 1000; /* Hz => kHz */
num *= 0x1000000;
if_ctl = cxd2820r_div_u64_round_closest(num, 41000);
if_ctl = DIV_ROUND_CLOSEST_ULL(num, 41000);
buf[0] = ((if_ctl >> 16) & 0xff);
buf[1] = ((if_ctl >> 8) & 0xff);
buf[2] = ((if_ctl >> 0) & 0xff);