On Thu, Jun 24, 2021 at 6:17 PM Laurent Pinchart
[off-list ref] wrote:

On Thu, Jun 24, 2021 at 06:02:36PM +0530, Jagan Teki wrote:

quoted

Hi Laurent,

On Thu, Jun 24, 2021 at 5:48 PM Laurent Pinchart
[off-list ref] wrote:

quoted

Hi Jagan,

On Thu, Jun 24, 2021 at 05:42:43PM +0530, Jagan Teki wrote:

quoted

On Thu, Jun 24, 2021 at 8:18 AM Fabio Estevam wrote:

quoted

On Wed, Jun 23, 2021 at 7:23 PM Laurent Pinchart wrote:

quoted

Looking at the register set, it seems to match the Exynos 5433,
supported by drivers/gpu/drm/exynos/exynos_drm_dsi.c. Can we leverage
that driver instead of adding a new one for the same IP core ?

Yes. there was an attempt from Michael in this direction:
https://patchwork.kernel.org/project/dri-devel/cover/20200911135413.3654800-1-m.tretter@pengutronix.de/

Thanks for the reference, I will check it out and see I can send any
updated versions wrt my i.MX8MM platform.

Thanks.

I had a brief look at the exynos driver, and I think it should be turned
into a DRM bridge as part of this rework to be used with the i.MX8MM.

Is there someone from Samsung who could assist, at least to test the
changes ?

I have hardware to verify it on i.MX8MM but from exynos I don't have
any contact from Samsung to suggest or test. Maybe I can add Tomasz
Figa while sending the changes?

Tomasz hasn't been working for Samsung for a loooong time (I've dropped
his Samsung address from the CC list for this reason).

Okay. I think exynos drm maintainers might help out here, but not sure of it.

quoted

I understand that there are 2 key implementations.

1. Adjust the exynos_drm_dsi.c by dropping component_ops as i.MX8MM
flow with LCDIF doesn't have component_ops (make sure it works with
exynos platform first)

I think it should be turned into a real drm_bridge, it's currently
implemented based on drm_encoder.

Yes, ie what I'm trying for.

Jagan.

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