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

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Date:	Thu, 5 Mar 2015 17:44:57 +0800
From:	Scott Jiang <scott.jiang.linux@...il.com>
To:	"Lad, Prabhakar" <prabhakar.csengg@...il.com>
Cc:	Hans Verkuil <hverkuil@...all.nl>,
	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.
>

I found if I disabled libjpeg ./configure --without-jpeg, it can pass
compilation.
Would you like me to send the result now or after Lad's v4 patch?

Scott
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