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authorManu Abraham <abraham.manu@gmail.com>2009-04-08 19:18:50 -0400
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-06-16 17:20:39 -0400
commitf430fff101dd2cdbf5db1cf274a1591ae2b6e05c (patch)
tree8e5aaf45ff2092bf801ad87772d83d739d581134 /drivers/media/dvb/frontends/stv090x.c
parent15bb366e86e07820374ec313170aab65d4e1d983 (diff)
V4L/DVB (11589): stv090x: code simplification
Signed-off-by: Manu Abraham <manu@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/dvb/frontends/stv090x.c')
-rw-r--r--drivers/media/dvb/frontends/stv090x.c14
1 files changed, 6 insertions, 8 deletions
diff --git a/drivers/media/dvb/frontends/stv090x.c b/drivers/media/dvb/frontends/stv090x.c
index 6e7c47a1f670..fee7917ec5c2 100644
--- a/drivers/media/dvb/frontends/stv090x.c
+++ b/drivers/media/dvb/frontends/stv090x.c
@@ -1368,7 +1368,6 @@ static u32 stv090x_get_srate(struct stv090x_state *state, u32 clk)
1368{ 1368{
1369 u8 r3, r2, r1, r0; 1369 u8 r3, r2, r1, r0;
1370 s32 srate, int_1, int_2, tmp_1, tmp_2; 1370 s32 srate, int_1, int_2, tmp_1, tmp_2;
1371 u32 pow2;
1372 1371
1373 r3 = STV090x_READ_DEMOD(state, SFR3); 1372 r3 = STV090x_READ_DEMOD(state, SFR3);
1374 r2 = STV090x_READ_DEMOD(state, SFR2); 1373 r2 = STV090x_READ_DEMOD(state, SFR2);
@@ -1377,16 +1376,15 @@ static u32 stv090x_get_srate(struct stv090x_state *state, u32 clk)
1377 1376
1378 srate = ((r3 << 24) | (r2 << 16) | (r1 << 8) | r0); 1377 srate = ((r3 << 24) | (r2 << 16) | (r1 << 8) | r0);
1379 1378
1380 pow2 = 1 << 16; 1379 int_1 = clk >> 16;
1381 int_1 = clk / pow2; 1380 int_2 = srate >> 16;
1382 int_2 = srate / pow2;
1383 1381
1384 tmp_1 = clk % pow2; 1382 tmp_1 = clk % 0x10000;
1385 tmp_2 = srate % pow2; 1383 tmp_2 = srate % 0x10000;
1386 1384
1387 srate = (int_1 * int_2) + 1385 srate = (int_1 * int_2) +
1388 ((int_1 * tmp_2) / pow2) + 1386 ((int_1 * tmp_2) >> 16) +
1389 ((int_2 * tmp_1) / pow2); 1387 ((int_2 * tmp_1) >> 16);
1390 1388
1391 return srate; 1389 return srate;
1392} 1390}