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V4L/DVB (11590): 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 20:24:53 -03:00 committed by Mauro Carvalho Chehab
parent f430fff101
commit 5f99feffc0
1 changed files with 1 additions and 4 deletions
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5
drivers/media/dvb/frontends/stv090x.c
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@ -2351,19 +2351,16 @@ static enum stv090x_signal_state stv090x_get_sig_params(struct stv090x_state *st
static u32 stv090x_get_tmgoffst(struct stv090x_state *state, u32 srate)
{
s32 offst_tmg;
s32 pow2;
offst_tmg = STV090x_READ_DEMOD(state, TMGREG2) << 16;
offst_tmg |= STV090x_READ_DEMOD(state, TMGREG1) << 8;
offst_tmg |= STV090x_READ_DEMOD(state, TMGREG0);
pow2 = 1 << 24;
offst_tmg = comp2(offst_tmg, 24); /* 2's complement */
if (!offst_tmg)
offst_tmg = 1;
offst_tmg = ((s32) srate * 10) / (pow2 / offst_tmg);
offst_tmg = ((s32) srate * 10) / ((s32) 0x1000000 / offst_tmg);
offst_tmg /= 320;
return offst_tmg;