From: Andy Walls <awalls@radix.net>
Date: Sun, 2 Nov 2008 21:54:10 +0000 (-0300)
Subject: V4L/DVB (9514): cx18: Fix PLL freq computation for debug display
X-Git-Tag: v2.6.29-rc1~556^2~447
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=f4167342b572c6122c712e8c6e5391808c1e5503;p=~shefty%2Frdma-dev.git

V4L/DVB (9514): cx18: Fix PLL freq computation for debug display

cx18: Fix PLL freq computation for debug display.
The code to compute the PLL freq from register values was storing an
intermediate 56 bit result in a 32 bit type, causing a nonsense value to
be displayed.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

diff --git a/drivers/media/video/cx18/cx18-av-core.c b/drivers/media/video/cx18/cx18-av-core.c
index 5c079e35e61..518bd701d39 100644
--- a/drivers/media/video/cx18/cx18-av-core.c
+++ b/drivers/media/video/cx18/cx18-av-core.c
@@ -273,10 +273,9 @@ void cx18_av_std_setup(struct cx18 *cx)
 			pll_int, pll_frac, pll_post);
 
 	if (pll_post) {
-		int fin, fsc;
-		int pll = 28636363L * ((((u64)pll_int) << 25) + pll_frac);
+		int fin, fsc, pll;
 
-		pll >>= 25;
+		pll = (28636364L * ((((u64)pll_int) << 25) + pll_frac)) >> 25;
 		pll /= pll_post;
 		CX18_DEBUG_INFO("PLL = %d.%06d MHz\n",
 					pll / 1000000, pll % 1000000);