linux-kernel - [PATCH v2 0/9] media: imx: Add better OF graph support

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Message-Id: <1513299887-16804-1-git-send-email-steve_longerbeam@mentor.com>
Date:   Thu, 14 Dec 2017 17:04:38 -0800
From:   Steve Longerbeam <slongerbeam@...il.com>
To:     Philipp Zabel <p.zabel@...gutronix.de>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Hans Verkuil <hverkuil@...all.nl>
Cc:     linux-media@...r.kernel.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org,
        Steve Longerbeam <steve_longerbeam@...tor.com>
Subject: [PATCH v2 0/9] media: imx: Add better OF graph support

This is a set of patches that improve support for more complex OF
graphs. Currently the imx-media driver only supports a single device
with a single port connected directly to either the CSI muxes or the
MIPI CSI-2 receiver input ports. There can't be a multi-port device in
between. This patch set removes those limitations.

For an example taken from automotive, a camera sensor or decoder could
be literally a remote device accessible over a FPD-III link, via TI
DS90Ux9xx deserializer/serializer pairs. This patch set would support
such OF graphs.

There are still some assumptions and restrictions, regarding the equivalence
of device-tree ports, port parents, and endpoints to media pads, entities,
and links that have been enumerated in the TODO file.

This patch set supersedes the following patch submitted earlier:

"[PATCH v2] media: staging/imx: do not return error in link_notify for unknown sources"

Tested by: Steve Longerbeam <steve_longerbeam@...tor.com>
on SabreLite with the OV5640

Tested-by: Philipp Zabel <p.zabel@...gutronix.de>
on Nitrogen6X with the TC358743.

Tested-by: Russell King <rmk+kernel@...linux.org.uk>
with the IMX219

History:
v2:
- this version is to resolve merge conflicts only, no functional
  changes since v1.

Steve Longerbeam (9):
  media: staging/imx: get CSI bus type from nearest upstream entity
  media: staging/imx: remove static media link arrays
  media: staging/imx: of: allow for recursing downstream
  media: staging/imx: remove devname string from imx_media_subdev
  media: staging/imx: pass fwnode handle to find/add async subdev
  media: staging/imx: remove static subdev arrays
  media: staging/imx: convert static vdev lists to list_head
  media: staging/imx: reorder function prototypes
  media: staging/imx: update TODO

 drivers/staging/media/imx/TODO                    |  63 +++-
 drivers/staging/media/imx/imx-ic-prp.c            |   4 +-
 drivers/staging/media/imx/imx-media-capture.c     |   2 +
 drivers/staging/media/imx/imx-media-csi.c         | 187 +++++-----
 drivers/staging/media/imx/imx-media-dev.c         | 401 +++++++++-------------
 drivers/staging/media/imx/imx-media-internal-sd.c | 253 +++++++-------
 drivers/staging/media/imx/imx-media-of.c          | 278 ++++++++-------
 drivers/staging/media/imx/imx-media-utils.c       | 122 +++----
 drivers/staging/media/imx/imx-media.h             | 187 ++++------
 9 files changed, 721 insertions(+), 776 deletions(-)

-- 
2.7.4