From: "Niklas Söderlund" <niklas.soderlund+renesas@ragnatech.se>
To: Helen Koike <helen.koike@collabora.com>,
Hans Verkuil <hverkuil@xs4all.nl>,
Sakari Ailus <sakari.ailus@linux.intel.com>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
linux-media@vger.kernel.org
Cc: linux-renesas-soc@vger.kernel.org,
"Niklas Söderlund" <niklas.soderlund+renesas@ragnatech.se>
Subject: [PATCH 0/3] v4l2-dev/ioctl: Add V4L2_CAP_IO_MC
Date: Tue, 15 Oct 2019 16:35:49 +0200 [thread overview]
Message-ID: <20191015143552.317669-1-niklas.soderlund+renesas@ragnatech.se> (raw)
Hi,
First of this series is based on work done by Helen in 2017 [1], I have
synced with her that it's OK for me to takeover the work.
This series aims to reduce the amount of boiler plate code in video
device drivers who's inputs and/or outputs are controlled by the Media
Controller instead of the V4L2 API.
Patch 1/3 adds the core parts of this change by adding a new video
device capability flag V4L2_CAP_IO_MC which if set provides helper
implementations for the get, set and enum inputs and outputs ioctrls
freeing the video device driver from the need to implement them.
Patch 2/3 and 3/3 converts the R-Car VIN and Intel IPU3 drivers to use
this new flag and delete the now redundant boiler plate code. I'm sure
more video device drivers can make use of this new flag but as I can
only test on these two platforms I have limited my changes to those.
1. https://patchwork.linuxtv.org/patch/41857/
Niklas Söderlund (3):
v4l2-dev/ioctl: Add V4L2_CAP_IO_MC
rcar-vin: Make use of V4L2_CAP_IO_MC
staging/intel-ipu3: Make use of V4L2_CAP_IO_MC
.../media/uapi/v4l/vidioc-querycap.rst | 3 +
.../media/videodev2.h.rst.exceptions | 1 +
drivers/media/platform/rcar-vin/rcar-v4l2.c | 17 +---
drivers/media/v4l2-core/v4l2-dev.c | 24 +++--
drivers/media/v4l2-core/v4l2-ioctl.c | 87 ++++++++++++++++++-
drivers/staging/media/ipu3/ipu3-v4l2.c | 60 +------------
include/uapi/linux/videodev2.h | 2 +
7 files changed, 110 insertions(+), 84 deletions(-)
--
2.23.0
next reply other threads:[~2019-10-15 14:37 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-15 14:35 Niklas Söderlund [this message]
2019-10-15 14:35 ` [PATCH 1/3] v4l2-dev/ioctl: Add V4L2_CAP_IO_MC Niklas Söderlund
2019-10-16 13:56 ` Hans Verkuil
2019-11-15 23:47 ` Niklas Söderlund
2019-10-15 14:35 ` [PATCH 2/3] rcar-vin: Make use of V4L2_CAP_IO_MC Niklas Söderlund
2019-10-15 14:35 ` [PATCH 3/3] staging/intel-ipu3: " Niklas Söderlund
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