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SubjectRe: [PATCH 0/9] media: imx: Add better OF graph support
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Hi Steve,

On 10/28/2017 10:36 PM, Steve Longerbeam wrote:
> 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.

Before I merge this patch series I wanted to know if Sakari's async work
that has now been merged (see https://www.spinics.net/lists/linux-media/msg124082.html)
affects this patch series.

It still applies cleanly, but I wondered if the subnotifier improvements
would simplify this driver.

Of course, any such simplification can also be done after this series has
been applied, but I don't know what your thoughts are on this.

Regards,

Hans

> This patch set supersedes the following patches submitted earlier:
>
> "[PATCH v2] media: staging/imx: do not return error in link_notify for unknown sources"
> "[PATCH RFC] media: staging/imx: fix complete handler"
>
> Tested by: Steve Longerbeam <steve_longerbeam@mentor.com>
> on SabreLite with the OV5640
>
> Tested-by: Philipp Zabel <p.zabel@pengutronix.de>
> on Nitrogen6X with the TC358743.
>
> Tested-by: Russell King <rmk+kernel@armlinux.org.uk>
> with the IMX219
>
>
> 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 | 400 ++++++++++------------
> 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, 722 insertions(+), 774 deletions(-)
>

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