On Fri, Nov 12, 2021 at 5:40 AM Tim Harvey [off-list ref] wrote:

On Thu, Nov 11, 2021 at 2:15 AM Jagan Teki [off-list ref] wrote:

quoted

This series support MIPI DSI on i.MX8MM.

The DSIM bridge still need to work to make it compatible for
exynos drm dsi hardware block.

This series work directly on to of linux-next with recent
dispmix-blk-ctrl changes.

Jagan,

Thanks - I was able to get this series working using the set of
exynos/drm patches from Michael submitted back in 2020-09-11:
https://patchwork.kernel.org/project/dri-devel/list/?series=347439&archive=both&state=*

quoted

Tested on i.Core MX8M Mini SoM with EDIMM2.2 and CTOUCH2
Carrier boards.

Required changes:
1. DSIM driver
https://patchwork.kernel.org/project/linux-arm-kernel/cover/20210704090230.26489-1-jagan@amarulasolutions.com/

This exynos/drm RFC series you posted back in July was where I
recalled the discussion about if the exynos driver could be split up
vs duplicating parts of it in a separate driver.

Not sure Laurent, Inki has some discussion about this [1], looks like
they are still looking for a common driver.

There were also some comments about this series. Can you address those
comments, rebase and resend?

I have not been able to get my hardware to work with this series yet
and am still debugging that (currently crashing in
samsung_dsim_host_attach)

I've initially tried a separate driver instead of exynos.[2]

quoted

2. DPHY change
https://www.spinics.net/lists/devicetree/msg381691.html

This was originally from Marek submitted on Oct 3 2020: [PATCH] phy:
exynos-mipi-video: Add support for NXP i.MX8MM

I'm thinking this may not be required, as dphy reset can now handle
via blk-ctrl like this [3]. I have tested the reset handling via
blk-ctrl and it works for me.

This one seems to have been acked but never got picked up for some reason.

Marek, can you add the tags and re-submit?

quoted

3. Bus format fix
https://github.com/openedev/linux/commit/6ca9781ed53ea75e26341dd57250e63794638b20

Jagan, can you submit this?

This is indeed not required, drm handles the bridge state via atomic
API's. I did check that as well. I will link my latest series soon.

[1] https://patchwork.kernel.org/project/linux-arm-kernel/patch/20210704090230.26489-7-jagan@amarulasolutions.com/
[2] https://patchwork.kernel.org/project/linux-arm-kernel/cover/20210621072424.111733-1-jagan@amarulasolutions.com/
[3] https://patchwork.kernel.org/project/linux-arm-kernel/patch/20211106155427.753197-1-aford173@gmail.com/

Jagan.

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