linux-kernel - Re: [PATCH v3 00/15] media: blackfin: bfin

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Date:	Tue, 3 Mar 2015 09:43:16 +0000
From:	"Lad, Prabhakar" <prabhakar.csengg@...il.com>
To:	Hans Verkuil <hverkuil@...all.nl>
Cc:	Scott Jiang <scott.jiang.linux@...il.com>,
	adi-buildroot-devel@...ts.sourceforge.net,
	Mauro Carvalho Chehab <mchehab@....samsung.com>,
	LMML <linux-media@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 00/15] media: blackfin: bfin_capture enhancements

Hi Hans,

On Tue, Mar 3, 2015 at 9:39 AM, Hans Verkuil <hverkuil@...all.nl> wrote:
> On 03/03/2015 10:30 AM, Lad, Prabhakar wrote:
>> Hi Hans,
>>
>> On Tue, Mar 3, 2015 at 8:49 AM, Hans Verkuil <hverkuil@...all.nl> wrote:
>>> On 03/02/2015 08:57 AM, Scott Jiang wrote:
>>>> Hi Lad and Hans,
>>>>
>>>> 2015-02-22 2:39 GMT+08:00 Lad Prabhakar <prabhakar.csengg@...il.com>:
>>>>> From: "Lad, Prabhakar" <prabhakar.csengg@...il.com>
>>>>>
>>>>> This patch series, enhances blackfin capture driver with
>>>>> vb2 helpers.
>>>>>
>>>>> Changes for v3:
>>>>> 1: patches unchanged except for patch 8/15 fixing starting of ppi only
>>>>>    after we have the resources.
>>>>> 2: Rebased on media tree.
>>>>>
>>>>> v2: http://lkml.iu.edu/hypermail/linux/kernel/1501.2/04655.html
>>>>>
>>>>> v1: https://lkml.org/lkml/2014/12/20/27
>>>>>
>>>>> Lad, Prabhakar (15):
>>>>>   media: blackfin: bfin_capture: drop buf_init() callback
>>>>>   media: blackfin: bfin_capture: release buffers in case
>>>>>     start_streaming() call back fails
>>>>>   media: blackfin: bfin_capture: set min_buffers_needed
>>>>>   media: blackfin: bfin_capture: improve buf_prepare() callback
>>>>>   media: blackfin: bfin_capture: improve queue_setup() callback
>>>>>   media: blackfin: bfin_capture: use vb2_fop_mmap/poll
>>>>>   media: blackfin: bfin_capture: use v4l2_fh_open and vb2_fop_release
>>>>>   media: blackfin: bfin_capture: use vb2_ioctl_* helpers
>>>>>   media: blackfin: bfin_capture: make sure all buffers are returned on
>>>>>     stop_streaming() callback
>>>>>   media: blackfin: bfin_capture: return -ENODATA for *std calls
>>>>>   media: blackfin: bfin_capture: return -ENODATA for *dv_timings calls
>>>>>   media: blackfin: bfin_capture: add support for vidioc_create_bufs
>>>>>   media: blackfin: bfin_capture: add support for VB2_DMABUF
>>>>>   media: blackfin: bfin_capture: add support for VIDIOC_EXPBUF
>>>>>   media: blackfin: bfin_capture: set v4l2 buffer sequence
>>>>>
>>>>>  drivers/media/platform/blackfin/bfin_capture.c | 306 ++++++++-----------------
>>>>>  1 file changed, 94 insertions(+), 212 deletions(-)
>>>>>
>>>>> --
>>>>
>>>> For all these patches,
>>>> Acked-by: Scott Jiang <scott.jiang.linux@...il.com>
>>>> Tested-by: Scott Jiang <scott.jiang.linux@...il.com>
>>>
>>> Thanks!
>>>
>>> Is it possible for you to run 'v4l2-compliance -s' with this driver and
>>> report the results? I'd be interested in that.
>>>
>> Fyi..
>> v4l2-utils can't be compiled under uClibc.
>
> Do you know what exactly fails? Is it possible to manually compile v4l2-compliance?
>
> I.e., try this:
>
> cd utils/v4l2-compliance
> cat *.cpp >x.cpp
> g++ -o v4l2-compliance x.cpp -I . -I ../../include/ -DNO_LIBV4L2
>
> I've never used uclibc, so I don't know what the limitations are.
>
Not sure what exactly fails, I haven’t tried compiling it, that was a
response from Scott for v2 series.

Thanks,
--Prabhakar Lad
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