Re: [PATCH v7 00/11] Renesas Capture Engine Unit (CEU) V4L2 driver

From: jacopo mondi <jacopo@jmondi.org>
To: Jacopo Mondi <jacopo+renesas@jmondi.org>
Cc: laurent.pinchart@ideasonboard.com, magnus.damm@gmail.com,
	geert@glider.be, hverkuil@xs4all.nl, mchehab@kernel.org,
	festevam@gmail.com, sakari.ailus@iki.fi, robh+dt@kernel.org,
	mark.rutland@arm.com, pombredanne@nexb.com,
	linux-renesas-soc@vger.kernel.org, linux-media@vger.kernel.org,
	linux-sh@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v7 00/11] Renesas Capture Engine Unit (CEU) V4L2 driver
Date: Fri, 26 Jan 2018 13:54:21 +0000	[thread overview]
Message-ID: <20180126135421.GJ17416@w540> (raw)
In-Reply-To: <1516974528-11120-1-git-send-email-jacopo+renesas@jmondi.org>

UUUPS

please ignore this submission as it contains patches from a previous
version (you may have noticed some patches in the series reports
[xx/09] in the subject).

I will resend.

Sorry for the noise

On Fri, Jan 26, 2018 at 02:48:32PM +0100, Jacopo Mondi wrote:
> Hello,
>   7th round for CEU driver&friends.
>
> This series includes 2 new patches compared to v6 and it is now based on
> top of Hans' series:
> [PATCHv2 0/9] media: replace g/s_parm by g/s_frame_interval
> and makes use of newly introduced v4l2_g/s_parm_cap() functions from v4l2-common
> in CEU's g/s_parm() callbacks.
>
> A branch for testing is available at:
> git://jmondi.org/linux ceu/media-tree-parm/base
> with few patches for Migo-R and GR-Peach applied on top of Hans' media-tree/parm
> branch.
>
> The 2 new patches in the series:
> [11/11] has been added to silence a v4l2-compliance error, and modifies
> ov7670 driver to set all fields of 'struct v4l2_mbus_format' during set_format
> operation, including ycbcr_enc, quantization and xfer_func. As the patch commit
> reports, this suppresses the following v4l2-compliance error:
> fail: v4l2-test-formats.cpp(335): ycbcr_enc >= 0xff
>
> [7/11] has been required by Hans to add frame interval handling to ov772x
> driver. As this is quite a big change I kept it in a separate patch to ease
> review, it can eventually be squashed on [6/11] if accepted.
>
> If for TW9910 video decoder the same is required (frame interval handling) I'm
> in favour of moving that driver to staging as it was proposed for ov772x before
> this series.
>
> v4l2-compliance now reports a 0 error count:
> Total: 43, Succeeded: 43, Failed: 0, Warnings: 0
>
> Hans, you asked me to run v4l2-compliance with the -f option, I cannot do
> that on my tiny GR-Peach as with its limited available system memory it cannot
> allocate the number of requested buffers for that test. I can try to tweak that
> if necessary. I won't stress here why I cannot do that on Migo-R, long story
> short, I need a special compiler with DSP support to run anything but the little
> initramfs I have received for SH7722. I've been able to tweak yavta to work and
> test capture and frame rate handling with it, but v4l2-compliance is much more
> complex and I don't think I'll be able run it on that platform.
>
> Below, v4l2-compliance output:
>
> -------------------------------------------------------------------------------
> v4l2-compliance SHA   : 20b6624f4bb84353e690d897688fd7ac12d6a881
>
> Driver Info:
> 	Driver name   : renesas-ceu
> 	Card type     : Renesas CEU e8210000.ceu
> 	Bus info      : platform:renesas-ceu-e8210000.c
> 	Driver version: 4.15.0
> 	Capabilities  : 0x84201000
> 		Video Capture Multiplanar
> 		Streaming
> 		Extended Pix Format
> 		Device Capabilities
> 	Device Caps   : 0x04201000
> 		Video Capture Multiplanar
> 		Streaming
> 		Extended Pix Format
>
> Compliance test for device /dev/video0 (not using libv4l2):
>
> Required ioctls:
> 	test VIDIOC_QUERYCAP: OK
>
> Allow for multiple opens:
> 	test second video open: OK
> 	test VIDIOC_QUERYCAP: OK
> 	test VIDIOC_G/S_PRIORITY: OK
> 	test for unlimited opens: OK
>
> Debug ioctls:
> 	test VIDIOC_DBG_G/S_REGISTER: OK
> 	test VIDIOC_LOG_STATUS: OK (Not Supported)
>
> 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)
> 	test VIDIOC_G/S/ENUMINPUT: OK
> 	test VIDIOC_G/S_AUDIO: OK (Not Supported)
> 	Inputs: 1 Audio Inputs: 0 Tuners: 0
>
> Output ioctls:
> 	test VIDIOC_G/S_MODULATOR: OK (Not Supported)
> 	test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
> 	test VIDIOC_ENUMAUDOUT: OK (Not Supported)
> 	test VIDIOC_G/S/ENUMOUTPUT: OK (Not Supported)
> 	test VIDIOC_G/S_AUDOUT: OK (Not Supported)
> 	Outputs: 0 Audio Outputs: 0 Modulators: 0
>
> Input/Output configuration ioctls:
> 	test VIDIOC_ENUM/G/S/QUERY_STD: OK (Not Supported)
> 	test VIDIOC_ENUM/G/S/QUERY_DV_TIMINGS: OK (Not Supported)
> 	test VIDIOC_DV_TIMINGS_CAP: OK (Not Supported)
> 	test VIDIOC_G/S_EDID: OK (Not Supported)
>
> Test input 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
> 		test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: OK
> 		test VIDIOC_G/S_JPEGCOMP: OK (Not Supported)
> 		Standard Controls: 12 Private Controls: 0
>
> 	Format ioctls:
> 		test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: OK
> 		fail: v4l2-test-formats.cpp(1162): ret && node->has_frmintervals
> 		test VIDIOC_G/S_PARM: OK
> 		test VIDIOC_G_FBUF: OK (Not Supported)
> 		test VIDIOC_G_FMT: OK
> 		test VIDIOC_TRY_FMT: OK
> 		test VIDIOC_S_FMT: OK
> 		test VIDIOC_G_SLICED_VBI_CAP: OK (Not Supported)
> 		test Cropping: OK (Not Supported)
> 		test Composing: OK (Not Supported)
> 		test Scaling: OK (Not Supported)
>
> 	Codec ioctls:
> 		test VIDIOC_(TRY_)ENCODER_CMD: OK (Not Supported)
> 		test VIDIOC_G_ENC_INDEX: OK (Not Supported)
> 		test VIDIOC_(TRY_)DECODER_CMD: OK (Not Supported)
>
> 	Buffer ioctls:
> 		test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: OK
> 		test VIDIOC_EXPBUF: OK
>
> Test input 0:
>
>
> Total: 43, Succeeded: 43, Failed: 0, Warnings: 0
> -------------------------------------------------------------------------------
>
> Thanks
>    j
>
> v6->v7:
> - Add patch to handle ycbr_enc and other fields of v4l2_mbus_format for ov7670
> - Add patch to handle frame interval for ov772x
> - Rebased on Hans' media-tree/parm branch with v4l2_g/s_parm_cap
> - Drop const modifier in CEU releated fields of Migo-R setup.c board file
>   to silence complier warnings.
>
> v5->v6:
> - Add Hans' Acked-by to most patches
> - Fix a bad change in ov772x get_selection
> - Add .buf_prepare callack to CEU and verify plane sizes there
> - Remove VB2_USERPTR from supported io_modes in CEU driver
> - Remove read() fops in CEU driver
>
> v4->v5:
> - Added Rob's and Laurent's Reviewed-by tag to DT bindings
> - Change CEU driver module license to "GPL v2" to match SPDX identifier as
>   suggested by Philippe Ombredanne
> - Make struct ceu_data static as suggested by Laurent and add his
>   Reviewed-by to CEU driver.
>
> v3->v4:
> - Drop generic fallback compatible string "renesas,ceu"
> - Addressed Laurent's comments on [3/9]
>   - Fix error messages on irq get/request
>   - Do not leak ceudev if irq_get fails
>   - Make irq_mask a const field
>
> v2->v3:
> - Improved DT bindings removing standard properties (pinctrl- ones and
>   remote-endpoint) not specific to this driver and improved description of
>   compatible strings
> - Remove ov772x's xlkc_rate property and set clock rate in Migo-R board file
> - Made 'xclk' clock private to ov772x driver in Migo-R board file
> - Change 'rstb' GPIO active output level and changed ov772x and tw9910 drivers
>   accordingly as suggested by Fabio
> - Minor changes in CEU driver to address Laurent's comments
> - Moved Migo-R setup patch to the end of the series to silence 0-day bot
> - Renamed tw9910 clock to 'xti' as per video decoder manual
> - Changed all SPDX identifiers to GPL-2.0 from previous GPL-2.0+
>
> v1->v2:
>  - DT
>  -- Addressed Geert's comments and added clocks for CEU to mstp6 clock source
>  -- Specified supported generic video iterfaces properties in dt-bindings and
>     simplified example
>
>  - CEU driver
>  -- Re-worked interrupt handler, interrupt management, reset(*) and capture
>     start operation
>  -- Re-worked querycap/enum_input/enum_frameintervals to fix some
>     v4l2_compliance failures
>  -- Removed soc_camera legacy operations g/s_mbus_format
>  -- Update to new notifier implementation
>  -- Fixed several comments from Hans, Laurent and Sakari
>
>  - Migo-R
>  -- Register clocks and gpios for sensor drivers in Migo-R setup
>  -- Updated sensors (tw9910 and ov772x) drivers headers and drivers to close
>     remarks from Hans and Laurent:
>  --- Removed platform callbacks and handle clocks and gpios from sensor drivers
>  --- Remove g/s_mbus_config operations
> Jacopo Mondi (11):
>   dt-bindings: media: Add Renesas CEU bindings
>   include: media: Add Renesas CEU driver interface
>   media: platform: Add Renesas CEU driver
>   ARM: dts: r7s72100: Add Capture Engine Unit (CEU)
>   media: i2c: Copy ov772x soc_camera sensor driver
>   media: i2c: ov772x: Remove soc_camera dependencies
>   media: i2c: ov772x: Support frame interval handling
>   media: i2c: Copy tw9910 soc_camera sensor driver
>   media: i2c: tw9910: Remove soc_camera dependencies
>   arch: sh: migor: Use new renesas-ceu camera driver
>   media: i2c: ov7670: Fully set mbus frame fmt
>
>  .../devicetree/bindings/media/renesas,ceu.txt      |   81 +
>  arch/arm/boot/dts/r7s72100.dtsi                    |   15 +-
>  arch/sh/boards/mach-migor/setup.c                  |  225 ++-
>  arch/sh/kernel/cpu/sh4a/clock-sh7722.c             |    2 +-
>  drivers/media/i2c/Kconfig                          |   20 +
>  drivers/media/i2c/Makefile                         |    2 +
>  drivers/media/i2c/ov7670.c                         |    4 +
>  drivers/media/i2c/ov772x.c                         | 1488 ++++++++++++++++++
>  drivers/media/i2c/tw9910.c                         | 1039 ++++++++++++
>  drivers/media/platform/Kconfig                     |    9 +
>  drivers/media/platform/Makefile                    |    1 +
>  drivers/media/platform/renesas-ceu.c               | 1661 ++++++++++++++++++++
>  include/media/drv-intf/renesas-ceu.h               |   26 +
>  include/media/i2c/ov772x.h                         |    6 +-
>  include/media/i2c/tw9910.h                         |    9 +
>  15 files changed, 4457 insertions(+), 131 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/media/renesas,ceu.txt
>  create mode 100644 drivers/media/i2c/ov772x.c
>  create mode 100644 drivers/media/i2c/tw9910.c
>  create mode 100644 drivers/media/platform/renesas-ceu.c
>  create mode 100644 include/media/drv-intf/renesas-ceu.h
>
> --
> 2.7.4
>