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

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Date:	Thu, 05 Mar 2015 11:26:38 +0100
From:	Hans Verkuil <hverkuil@...all.nl>
To:	Scott Jiang <scott.jiang.linux@...il.com>,
	"Lad, Prabhakar" <prabhakar.csengg@...il.com>
CC:	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

On 03/05/15 10:44, Scott Jiang wrote:
> 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.
>>
> 
> I found if I disabled libjpeg ./configure --without-jpeg, it can pass
> compilation.

Great!

> Would you like me to send the result now or after Lad's v4 patch?

Send it now as v4 won't have any meaningful code changes.

Thanks!

	Hans
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