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V4L/DVB (11589): stv090x: code simplification

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Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Manu Abraham 2009-04-08 20:18:50 -03:00 committed by Mauro Carvalho Chehab
parent 15bb366e86
commit f430fff101
1 changed files with 6 additions and 8 deletions
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14
drivers/media/dvb/frontends/stv090x.c
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@ -1368,7 +1368,6 @@ static u32 stv090x_get_srate(struct stv090x_state *state, u32 clk)
{
u8 r3, r2, r1, r0;
s32 srate, int_1, int_2, tmp_1, tmp_2;
u32 pow2;
r3 = STV090x_READ_DEMOD(state, SFR3);
r2 = STV090x_READ_DEMOD(state, SFR2);
@ -1377,16 +1376,15 @@ static u32 stv090x_get_srate(struct stv090x_state *state, u32 clk)
srate = ((r3 << 24) | (r2 << 16) | (r1 << 8) | r0);
pow2 = 1 << 16;
int_1 = clk / pow2;
int_2 = srate / pow2;
int_1 = clk >> 16;
int_2 = srate >> 16;
tmp_1 = clk % pow2;
tmp_2 = srate % pow2;
tmp_1 = clk % 0x10000;
tmp_2 = srate % 0x10000;
srate = (int_1 * int_2) +
((int_1 * tmp_2) / pow2) +
((int_2 * tmp_1) / pow2);
((int_1 * tmp_2) >> 16) +
((int_2 * tmp_1) >> 16);
return srate;
}