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[media] msi3101: correct max videobuf2 alloc

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There was too small buffers requested in worst case.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Antti Palosaari 2013-09-15 13:21:20 -03:00 committed by Mauro Carvalho Chehab
parent 4964c9c828
commit c0c7203640
1 changed files with 7 additions and 1 deletions
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8
drivers/staging/media/msi3101/sdr-msi3101.c
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@ -1131,7 +1131,13 @@ static int msi3101_queue_setup(struct vb2_queue *vq,
/* Absolute min and max number of buffers available for mmap() */
*nbuffers = 32;
*nplanes = 1;
sizes[0] = PAGE_ALIGN(3 * 3072); /* 3 * 768 * 4 */
/*
* 3, wMaxPacketSize 3x 1024 bytes
* 504, max IQ sample pairs per 1024 frame
* 2, two samples, I and Q
* 4, 32-bit float
*/
sizes[0] = PAGE_ALIGN(3 * 504 * 2 * 4); /* = 12096 */
dev_dbg(&s->udev->dev, "%s: nbuffers=%d sizes[0]=%d\n",
__func__, *nbuffers, sizes[0]);
return 0;