From: Andreas Regel <andreas.regel@gmx.de>
To: linux-media@vger.kernel.org
Subject: [PATCH] stv6110x: fix r divider calculation
Date: Mon, 02 Nov 2009 21:23:17 +0100 [thread overview]
Message-ID: <4AEF3FB5.9080001@gmx.de> (raw)
This patch fixed the calculation of the r divider in stv6110x_set_frequency. It had always the value 3 no matter what frequency was given.
Signed-off-by: Andreas Regel <andreas.regel@gmx.de>
diff -r 43878f8dbfb0 linux/drivers/media/dvb/frontends/stv6110x.c
--- a/linux/drivers/media/dvb/frontends/stv6110x.c Sun Nov 01 07:17:46 2009 -0200
+++ b/linux/drivers/media/dvb/frontends/stv6110x.c Mon Nov 02 21:02:22 2009 +0100
@@ -95,7 +95,7 @@
{
struct stv6110x_state *stv6110x = fe->tuner_priv;
u32 rDiv, divider;
- s32 pVal, pCalc, rDivOpt = 0;
+ s32 pVal, pCalc, rDivOpt = 0, pCalcOpt = 1000;
u8 i;
STV6110x_SETFIELD(stv6110x_regs[STV6110x_CTRL1], CTRL1_K, (REFCLOCK_MHz - 16));
@@ -121,8 +121,10 @@
for (rDiv = 0; rDiv <= 3; rDiv++) {
pCalc = (REFCLOCK_kHz / 100) / R_DIV(rDiv);
- if ((abs((s32)(pCalc - pVal))) < (abs((s32)(1000 - pVal))))
+ if ((abs((s32)(pCalc - pVal))) < (abs((s32)(pCalcOpt - pVal))))
rDivOpt = rDiv;
+
+ pCalcOpt = (REFCLOCK_kHz / 100) / R_DIV(rDivOpt);
}
divider = (frequency * R_DIV(rDivOpt) * pVal) / REFCLOCK_kHz;
reply other threads:[~2009-11-02 20:37 UTC|newest]
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