linux-kernel - Re: [PATCH v5 00/39] i.MX Media Driver

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Date:   Tue, 21 Mar 2017 11:36:29 +0000
From:   Russell King - ARM Linux <linux@...linux.org.uk>
To:     Hans Verkuil <hverkuil@...all.nl>
Cc:     Niklas Söderlund 
        <niklas.soderlund@...natech.se>,
        Steve Longerbeam <slongerbeam@...il.com>,
        Steve Longerbeam <steve_longerbeam@...tor.com>,
        robh+dt@...nel.org, mark.rutland@....com, shawnguo@...nel.org,
        kernel@...gutronix.de, fabio.estevam@....com, mchehab@...nel.org,
        nick@...anahar.org, markus.heiser@...marIT.de,
        p.zabel@...gutronix.de, laurent.pinchart+renesas@...asonboard.com,
        bparrot@...com, geert@...ux-m68k.org, arnd@...db.de,
        sudipm.mukherjee@...il.com, minghsiu.tsai@...iatek.com,
        tiffany.lin@...iatek.com, jean-christophe.trotin@...com,
        horms+renesas@...ge.net.au, robert.jarzmik@...e.fr,
        songjun.wu@...rochip.com, andrew-ct.chen@...iatek.com,
        gregkh@...uxfoundation.org, shuah@...nel.org,
        sakari.ailus@...ux.intel.com, pavel@....cz,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-media@...r.kernel.org,
        devel@...verdev.osuosl.org
Subject: Re: [PATCH v5 00/39] i.MX Media Driver

On Tue, Mar 21, 2017 at 11:59:02AM +0100, Hans Verkuil wrote:
> Ah, good to hear that -s works with MC. I was not sure about that.
> Thanks for the feedback!

Not soo good on iMX6:

$ v4l2-compliance -d /dev/video10 -s --expbuf-device=/dev/video0
...
Input ioctls:
        test VIDIOC_G/S_TUNER/ENUM_FREQ_BANDS: OK (Not Supported)
        test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
        test VIDIOC_S_HW_FREQ_SEEK: OK (Not Supported)
        test VIDIOC_ENUMAUDIO: OK (Not Supported)
                fail: v4l2-test-input-output.cpp(420): G_INPUT not supported for a capture device
        test VIDIOC_G/S/ENUMINPUT: FAIL
        test VIDIOC_G/S_AUDIO: OK (Not Supported)
        Inputs: 0 Audio Inputs: 0 Tuners: 0
...
        Control ioctls:
                test VIDIOC_QUERY_EXT_CTRL/QUERYMENU: OK
                test VIDIOC_QUERYCTRL: OK
                test VIDIOC_G/S_CTRL: OK
                test VIDIOC_G/S/TRY_EXT_CTRLS: OK
                fail: v4l2-test-controls.cpp(782): subscribe event for control 'User Controls' failed
                test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: FAIL
...
Streaming ioctls:
        test read/write: OK (Not Supported)
                fail: v4l2-test-buffers.cpp(297): g_field() == V4L2_FIELD_ANY
                fail: v4l2-test-buffers.cpp(703): buf.check(q, last_seq)
                fail: v4l2-test-buffers.cpp(973): captureBufs(node, q, m2m_q, frame_count, false)
        test MMAP: FAIL
        test USERPTR: OK (Not Supported)
                fail: v4l2-test-buffers.cpp(1188): can_stream && ret != EINVAL
        test DMABUF: FAIL

(/dev/video0 being CODA).  CODA itself seems to have failures:

        Format ioctls:
                test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: OK
                warn: v4l2-test-formats.cpp(1187): S_PARM is supported for buftype 2, but not ENUM_FRAMEINTERVALS
                warn: v4l2-test-formats.cpp(1194): S_PARM is supported but doesn't report V4L2_CAP_TIMEPERFRAME
                test VIDIOC_G/S_PARM: OK
                test VIDIOC_G_FBUF: OK (Not Supported)
                test VIDIOC_G_FMT: OK
                test VIDIOC_TRY_FMT: OK
                fail: v4l2-test-formats.cpp(774): fmt_out.g_colorspace() != col
...
Streaming ioctls:
        test read/write: OK (Not Supported)
                fail: v4l2-test-buffers.cpp(956): q.create_bufs(node, 1, &fmt) != EINVAL
        test MMAP: FAIL
        test USERPTR: OK (Not Supported)
        test DMABUF: Cannot test, specify --expbuf-device

-- 
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
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