cobalt: fix 64-bit division

PATCH New Hans Verkuil 1 participant 1 message Jun 10, 2015

Subsystems (2)

Media (V4L/DVB) Cobalt media driver

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Hans Verkuil

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2015-06-10 05:45 UTC #0 lore raw

PATCH 1/1 cobalt: fix 64-bit division

There was still one more remaining 64-bit division in the cobalt code. Replace it by div_u64.

Signed-off-by Hans Verkuil <[email protected]>

Reported-by Mauro Carvalho Chehab <[email protected]>

drivers/media/pci/cobalt/cobalt-v4l2.c +1 -1

index 6fb8812..b40c2d1 100644
@@ -327,7 +327,7 @@ static int cobalt_start_streaming(struct vb2_queue *q, unsigned int count)
 	iowrite32(clk_freq / 1000000, &clkloss->ref_clk_cnt_val);
 	/* The lower bound for the clock frequency is 0.5% lower as is
 	 * allowed by the spec */
-	iowrite32((((u64)bt->pixelclock * 995) / 1000) / 1000000,
+	iowrite32(div_u64(bt->pixelclock * 995, 1000000000),
 		  &clkloss->test_clk_cnt_val);
 	/* will be enabled after the first frame has been received */
 	iowrite32(bt->width * bt->height, &fw->active_length);