From: Scott Jiang <scott.jiang.linux@gmail.com>
To: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
Cc: LMML <linux-media@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
adi-buildroot-devel@lists.sourceforge.net,
Mauro Carvalho Chehab <m.chehab@samsung.com>
Subject: Re: [PATCH 05/15] media: blackfin: bfin_capture: improve queue_setup() callback
Date: Wed, 21 Jan 2015 18:01:43 +0800 [thread overview]
Message-ID: <CAHG8p1D4HAbM-JVDa_P81EA1TeSYZ_Wi5=uYH5VvnmLiR+dHeA@mail.gmail.com> (raw)
In-Reply-To: <1419072462-3168-6-git-send-email-prabhakar.csengg@gmail.com>
2014-12-20 18:47 GMT+08:00 Lad, Prabhakar <prabhakar.csengg@gmail.com>:
> this patch improves the queue_setup() callback.
>
> Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
> ---
> drivers/media/platform/blackfin/bfin_capture.c | 10 ++++++----
> 1 file changed, 6 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/media/platform/blackfin/bfin_capture.c b/drivers/media/platform/blackfin/bfin_capture.c
> index 8bd94a1..76d42bb 100644
> --- a/drivers/media/platform/blackfin/bfin_capture.c
> +++ b/drivers/media/platform/blackfin/bfin_capture.c
> @@ -44,7 +44,6 @@
> #include <media/blackfin/ppi.h>
>
> #define CAPTURE_DRV_NAME "bfin_capture"
> -#define BCAP_MIN_NUM_BUF 2
>
> struct bcap_format {
> char *desc;
> @@ -292,11 +291,14 @@ static int bcap_queue_setup(struct vb2_queue *vq,
> {
> struct bcap_device *bcap_dev = vb2_get_drv_priv(vq);
>
> - if (*nbuffers < BCAP_MIN_NUM_BUF)
> - *nbuffers = BCAP_MIN_NUM_BUF;
> + if (fmt && fmt->fmt.pix.sizeimage < bcap_dev->fmt.sizeimage)
> + return -EINVAL;
> +
> + if (vq->num_buffers + *nbuffers < 3)
> + *nbuffers = 3 - vq->num_buffers;
It seems it changes the minimum buffers from 2 to 3?
>
> *nplanes = 1;
> - sizes[0] = bcap_dev->fmt.sizeimage;
> + sizes[0] = fmt ? fmt->fmt.pix.sizeimage : bcap_dev->fmt.sizeimage;
> alloc_ctxs[0] = bcap_dev->alloc_ctx;
>
next prev parent reply other threads:[~2015-01-21 10:01 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-20 10:47 [PATCH 00/15] media: blackfin: bfin_capture enhancements Lad, Prabhakar
2014-12-20 10:47 ` [PATCH 01/15] media: blackfin: bfin_capture: drop buf_init() callback Lad, Prabhakar
2014-12-20 10:47 ` [PATCH 02/15] media: blackfin: bfin_capture: release buffers in case start_streaming() call back fails Lad, Prabhakar
2014-12-20 10:47 ` [PATCH 03/15] media: blackfin: bfin_capture: set min_buffers_needed Lad, Prabhakar
2014-12-20 10:47 ` [PATCH 04/15] media: blackfin: bfin_capture: improve buf_prepare() callback Lad, Prabhakar
2014-12-20 10:47 ` [PATCH 05/15] media: blackfin: bfin_capture: improve queue_setup() callback Lad, Prabhakar
2015-01-21 10:01 ` Scott Jiang [this message]
2015-01-21 11:29 ` Lad, Prabhakar
2014-12-20 10:47 ` [PATCH 06/15] media: blackfin: bfin_capture: use vb2_fop_mmap/poll Lad, Prabhakar
2014-12-20 10:47 ` [PATCH 07/15] media: blackfin: bfin_capture: use v4l2_fh_open and vb2_fop_release Lad, Prabhakar
2014-12-20 10:47 ` [PATCH 08/15] media: blackfin: bfin_capture: use vb2_ioctl_* helpers Lad, Prabhakar
2015-01-21 10:55 ` Scott Jiang
2015-01-21 11:28 ` Lad, Prabhakar
2014-12-20 10:47 ` [PATCH 09/15] media: blackfin: bfin_capture: make sure all buffers are returned on stop_streaming() callback Lad, Prabhakar
2014-12-20 10:47 ` [PATCH 10/15] media: blackfin: bfin_capture: return -ENODATA for *std calls Lad, Prabhakar
2014-12-20 10:47 ` [PATCH 11/15] media: blackfin: bfin_capture: return -ENODATA for *dv_timings calls Lad, Prabhakar
2014-12-20 10:47 ` [PATCH 12/15] media: blackfin: bfin_capture: add support for vidioc_create_bufs Lad, Prabhakar
2014-12-20 10:47 ` [PATCH 13/15] media: blackfin: bfin_capture: add support for VB2_DMABUF Lad, Prabhakar
2014-12-20 10:47 ` [PATCH 14/15] media: blackfin: bfin_capture: add support for VIDIOC_EXPBUF Lad, Prabhakar
2014-12-20 10:47 ` [PATCH 15/15] media: blackfin: bfin_capture: set v4l2 buffer sequence Lad, Prabhakar
2014-12-26 7:13 ` [PATCH 00/15] media: blackfin: bfin_capture enhancements Scott Jiang
2015-01-16 15:08 ` Hans Verkuil
2015-01-21 12:09 ` Lad, Prabhakar
2015-01-22 3:51 ` Scott Jiang
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