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From: Tim Harvey <tharvey@gateworks.com>
To: Jagan Teki <jagan@amarulasolutions.com>
Cc: Sam Ravnborg <sam@ravnborg.org>, Marek Vasut <marex@denx.de>,
	devicetree <devicetree@vger.kernel.org>,
	linux-samsung-soc <linux-samsung-soc@vger.kernel.org>,
	Joonyoung Shim <jy0922.shim@samsung.com>,
	Neil Armstrong <narmstrong@baylibre.com>,
	linux-amarula <linux-amarula@amarulasolutions.com>,
	dri-devel <dri-devel@lists.freedesktop.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>,
	Seung-Woo Kim <sw0312.kim@samsung.com>,
	Robert Foss <robert.foss@linaro.org>,
	Frieder Schrempf <frieder.schrempf@kontron.de>,
	Andrzej Hajda <a.hajda@samsung.com>,
	Kyungmin Park <kyungmin.park@samsung.com>,
	Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
	Daniel Vetter <daniel.vetter@intel.com>,
	linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
	NXP Linux Team <linux-imx@nxp.com>
Subject: Re: [RFC PATCH 00/17] drm: bridge: Samsung MIPI DSIM bridge
Date: Tue, 5 Oct 2021 14:43:32 -0700	[thread overview]
Message-ID: <CAJ+vNU1Hy_94TYgs0isNc2pmiH2sOReZJLhphzQFTN2Z50JPrA@mail.gmail.com> (raw)
In-Reply-To: <CAMty3ZANJz=HSKFzZ8gn896uw98iVwMEpGhmanXNbj77Ren4hw@mail.gmail.com>

On Sun, Jul 25, 2021 at 10:14 AM Jagan Teki <jagan@amarulasolutions.com> wrote:
>
> Hi Sam,
>
> On Sun, Jul 25, 2021 at 10:35 PM Sam Ravnborg <sam@ravnborg.org> wrote:
> >
> > Hi Jagan,
> >
> > On Sun, Jul 04, 2021 at 02:32:13PM +0530, Jagan Teki wrote:
> > > This series supports common bridge support for Samsung MIPI DSIM
> > > which is used in Exynos and i.MX8MM SoC's.
> > >
> > > The final bridge supports both the Exynos and i.MX8MM DSI devices.
> > >
> > > Right now bridge offers two sets of implementations.
> > >
> > > A. With component_ops and exynos specific code exclusively for
> > >    exynos dsi drivers and it's legacy bindings.
> > >
> > > B. Without componenet_ops for newly implemented bridges and its
> > >    users like i.MX8MM.
> > >
> > > The future plan is to fix the implementation A) by dropping
> > > component_ops and fixing exynos specific code in order to make
> > > the bridge more mature to use and the same is mentioned in
> > > drivers TODO.
> > >
> > > Patch 0001 - 0006: Bridge conversion
> > > Patch 0007 - 0017: Samsung MIPI DSIM bridge fixes, additions
> > >
> > > Tested in Engicam i.Core MX8M Mini SoM.
> > >
> > > Anyone interest, please have a look on this repo
> > > https://github.com/openedev/linux/tree/070421-imx8mm-dsim
> > >
> > > Would appreciate anyone from the exynos team to test it on
> > > the exynos platform?
> > >
> > > Any inputs?
> >
> > I really like where you are headign with this!
> > No testing - sorry. But I will try to provide a bit of feedback on the
> > individual patches.
> >
> > I hope you find a way to move forward with this.
>
> Thanks for the response.
>
> We have found some issues with Bridge conversion on existing exynos
> drivers. The component based DSI drivers(like exynos) are difficult to
> attach if it involves kms hotplug. kms hotplug would require drm
> pointer and that pointer would only available after the bind call
> finishes. But the bridge attach in bind call will defer till it find
> the attached bridge.
>
> Right now I'm trying to find the proper way to attach the bridges for
> component based DSI drivers which involves kms hot-plug.
>
> If you have any ideas on this, please let me know.
>

Jagan,

How is your progress on this series? Looking at your repo it looks
like you've rebased on top of 5.13-rc3 in your 070121-imx8mm-dsim
branch but you've got a lot of things there that are likely not
related to this series?

Best regards,

Tim

  reply	other threads:[~2021-10-05 21:43 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-04  9:02 Jagan Teki
2021-07-04  9:02 ` [RFC PATCH 01/17] drm/exynos: dsi: Convert to bridge driver Jagan Teki
2021-07-04  9:02 ` [RFC PATCH 02/17] drm/exynos: dsi: Handle drm_device for bridge Jagan Teki
2021-07-04  9:02 ` [RFC PATCH 03/17] drm/exynos: dsi: Use the drm_panel_bridge API Jagan Teki
2021-07-05 11:47   ` Marek Szyprowski
2021-07-05 12:00     ` Jagan Teki
2021-07-05 12:13       ` Marek Szyprowski
2021-07-05 12:34         ` Jagan Teki
2021-07-04  9:02 ` [RFC PATCH 04/17] drm/exynos: dsi: Create bridge connector for encoder Jagan Teki
2021-07-04  9:02 ` [RFC PATCH 05/17] drm/exynos: dsi: Get the mode from bridge Jagan Teki
2021-07-29 13:20   ` Robert Foss
2021-07-04  9:02 ` [RFC PATCH 06/17] drm/exynos: dsi: Handle exynos specifics via driver_data Jagan Teki
     [not found]   ` <YP2el40V3K4R7ner@ravnborg.org>
2021-07-25 17:31     ` Jagan Teki
2021-08-13  6:50     ` Inki Dae
2021-08-13 12:16       ` Laurent Pinchart
2021-08-18  6:09         ` Inki Dae
2021-07-04  9:02 ` [RFC PATCH 07/17] drm: bridge: Move exynos_drm_dsi into bridges Jagan Teki
2021-07-04  9:02 ` [RFC PATCH 08/17] dt-bindings: display: bridge: Add Samsung MIPI DSIM bridge Jagan Teki
2021-07-12 15:13   ` Rob Herring
2021-07-12 15:23     ` Jagan Teki
2021-07-04  9:02 ` [RFC PATCH 09/17] drm: bridge: samsung-dsim: Add module init, exit Jagan Teki
2021-07-04  9:02 ` [RFC PATCH 10/17] drm: bridge: samsung-dsim: Update the of_node for port(s) Jagan Teki
2021-07-04  9:02 ` [RFC PATCH 11/17] drm: bridge: samsung-dsim: Find the possible DSI devices Jagan Teki
2021-07-04  9:02 ` [RFC PATCH 12/17] dt-bindings: display: bridge: samsung,mipi-dsim: Add i.MX8MM support Jagan Teki
2021-07-14 22:59   ` Rob Herring
2021-07-04  9:02 ` [RFC PATCH 13/17] drm: bridge: samsung-dsim: " Jagan Teki
2021-07-04  9:02 ` [RFC PATCH 14/17] drm: bridge: samsung-dsim: Add input_bus_flags Jagan Teki
2021-07-04  9:02 ` [RFC PATCH 15/17] drm: bridge: samsung-dsim: Move DSI init in bridge enable Jagan Teki
2021-07-04  9:02 ` [RFC PATCH 16/17] drm: bridge: samsung-dsim: Fix PLL_P offset Jagan Teki
2021-07-04  9:02 ` [RFC PATCH 17/17] drm: bridge: samsung-dsim: Add bridge mode_fixup Jagan Teki
     [not found] ` <YP2ZvoVQyvwTXP++@ravnborg.org>
2021-07-25 17:13   ` [RFC PATCH 00/17] drm: bridge: Samsung MIPI DSIM bridge Jagan Teki
2021-10-05 21:43     ` Tim Harvey [this message]
2021-12-09  8:36       ` Michael Nazzareno Trimarchi
2021-12-09 16:40         ` Tim Harvey
2021-12-09 17:09           ` Michael Nazzareno Trimarchi
2021-12-09 17:57             ` Tim Harvey
2021-12-09 20:24             ` Lucas Stach
2021-12-09 21:24               ` Michael Nazzareno Trimarchi
2021-12-15 13:34                 ` Adam Ford

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