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git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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V4L/DVB (4699): CX24109 patch to eliminate the weird mis-tunings
A number of people have been reporting wierd tuning problems with various
cards. Yeasah tracked down the problem to a miss-read datasheet. This
resolves the problems.
Signed-off-by: Yeasah Pell <yeasah@schwide.net>
Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
authored by
Steven Toth
and committed by
Mauro Carvalho Chehab
9b5a4a67
d2be8936
+2
-2
drivers/media/dvb/frontends/cx24123.c
+2
-2
drivers/media/dvb/frontends/cx24123.c
···
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ndiv = ( ((p->frequency * vco_div * 10) / (2 * XTAL / 1000)) / 32) & 0x1ff;
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adiv = ( ((p->frequency * vco_div * 10) / (2 * XTAL / 1000)) % 32) & 0x1f;
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555
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-
if (adiv == 0)
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-
ndiv++;
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+
if (adiv == 0 && ndiv > 0)
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+
ndiv--;
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/* control bits 11, refdiv 11, charge pump polarity 1, charge pump current, ndiv, adiv */
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state->pllarg = (3 << 19) | (3 << 17) | (1 << 16) | (pump << 14) | (ndiv << 5) | adiv;