Commit 9ad4c655 authored May 29, 2009 by Andy Walls Committed by Mauro Carvalho Chehab Jun 16, 2009

V4L/DVB (11898): cx18: Perform 64 bit divide so it works for 32 bit systems



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>
Signed-off-by: David Ward <david.ward@gatech.edu>
Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

parent 75c74d1c

drivers/media/video/cx18/cx18-av-core.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -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);