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| author | Andy Walls <awalls@radix.net> | 2009-05-29 19:54:02 -0400 |
|---|---|---|
| committer | Andy Walls <awalls@radix.net> | 2009-05-29 19:54:02 -0400 |
| commit | 3d5f82276e18a37806603a52b23d18c8b60b5d01 (patch) | |
| tree | 4b5157bc37bcc30ff4f47cb3d8ad141af7fe167a /linux/drivers/media/video/cx18/cx18-av-core.c | |
| parent | e0dc20d13b71daf0612373420a45246e6566d61f (diff) | |
| download | mediapointer-dvb-s2-3d5f82276e18a37806603a52b23d18c8b60b5d01.tar.gz mediapointer-dvb-s2-3d5f82276e18a37806603a52b23d18c8b60b5d01.tar.bz2 | |
cx18: Perform 64 bit divide so it works for 32 bit systems
From: Andy Walls <awalls@radix.net>
Thanks to David Ward and Mike Krufky for reporting the problem and
debugging this as an unresolved symbol due to a 64 bit divide on a 32 bit
system. David Ward provided the content of this patch; Andy Walls only
performed some cosmetic edits.
Reported-by: David Ward <david.ward@gatech.edu>
Priority: normal
Signed-off-by: David Ward <david.ward@gatech.edu>
Signed-off-by: Andy Walls <awalls@radix.net>
Diffstat (limited to 'linux/drivers/media/video/cx18/cx18-av-core.c')
| -rw-r--r-- | linux/drivers/media/video/cx18/cx18-av-core.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/linux/drivers/media/video/cx18/cx18-av-core.c b/linux/drivers/media/video/cx18/cx18-av-core.c index 0b3d840cc..536dedb23 100644 --- a/linux/drivers/media/video/cx18/cx18-av-core.c +++ b/linux/drivers/media/video/cx18/cx18-av-core.c @@ -447,6 +447,7 @@ void cx18_av_std_setup(struct cx18 *cx) if (pll_post) { int fsc, pll; + u64 tmp; pll = (28636360L * ((((u64)pll_int) << 25) + pll_frac)) >> 25; pll /= pll_post; @@ -459,7 +460,9 @@ void cx18_av_std_setup(struct cx18 *cx) "= %d.%03d\n", src_decimation / 256, ((src_decimation % 256) * 1000) / 256); - fsc = ((((u64)sc) * 28636360)/src_decimation) >> 13L; + tmp = 28636360 * (u64) sc; + do_div(tmp, src_decimation); + fsc = tmp >> 13; CX18_DEBUG_INFO_DEV(sd, "Chroma sub-carrier initial freq = %d.%06d " "MHz\n", fsc / 1000000, fsc % 1000000); |