From: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
To: Frieder Schrempf <frieder.schrempf@kontron.de>,
Marek Vasut <marex@denx.de>,
Jagan Teki <jagan@amarulasolutions.com>
Cc: Laurent.pinchart@ideasonboard.com, aford173@gmail.com,
andrzej.hajda@intel.com, dri-devel@lists.freedesktop.org,
inki.dae@samsung.com, kyungmin.park@samsung.com,
linux-amarula@amarulasolutions.com,
linux-arm-kernel@lists.infradead.org, linux-imx@nxp.com,
linux-samsung-soc@vger.kernel.org, m.szyprowski@samsung.com,
matteo.lisi@engicam.com, sw0312.kim@samsung.com,
tharvey@gateworks.com
Subject: Re: [PATCH v12 00/18] drm: Add Samsung MIPI DSIM bridge
Date: Fri, 24 Feb 2023 15:08:17 +0100 [thread overview]
Message-ID: <0483dc01-a6b5-89ac-3ac0-41f85405fab3@prevas.dk> (raw)
In-Reply-To: <657fa528-ca01-0c6a-2c2b-bb7f4a95096d@kontron.de>
On 22/02/2023 11.05, Frieder Schrempf wrote:
> The NXP kernel is completely different. AFAIK it uses the component
> helpers to bundle all subdrivers from a central driver
> (display-subsystem). This is not how the mainline approach using the
> bridge driver interface works. So you can't compare them.
>
> Did you look at this extensive thread with findings from Adam?
>
> https://lore.kernel.org/lkml/CAHCN7xJ=N1vWVTBjArskJ59fyaLzmAGWfc0E=_iGizrDNR_Udw@mail.gmail.com/
>
> It is related to HDMI, but I guess a lot of things are valid for DP, too.
>
> Anyway, we need to get this series merged. Otherwise we can't work on
> fixing all the other issues on top.
Alright, I finally managed to get the imx8mm-dsi-v12 branch (commit
fdde97c7d553) to work, by modifying Marek's patch for enabling the
lcdif->mipi pipeline a little. The end result is in
https://github.com/Villemoes/linux/tree/imx8mp-mipi . There are also a
few cherry-picks of by-now-upstream patches to imx8mp.dtsi included.
It works on our custom hardware, with the ti,sn65dsi86 mipi->eDP bridge.
It does not seem to work on the imx8mp-evk with the adv7535 hdmi bridge
daughter board, but that's probably just as much the fault of the
adv7535 driver as anything in the SOC - it's impossible to get a real
data sheet for that thing, and there's no end of random patches floating
around, with the NXP kernel doing completely their own thing. So I've
given up on getting that to work.
Rasmus
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next prev parent reply other threads:[~2023-02-24 14:09 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-26 14:44 [PATCH v12 00/18] drm: Add Samsung MIPI DSIM bridge Jagan Teki
2023-01-26 14:44 ` [PATCH v12 01/18] drm: of: Lookup if child node has DSI panel or bridge Jagan Teki
2023-01-26 14:44 ` [PATCH v12 02/18] drm: bridge: panel: Add devm_drm_of_dsi_get_bridge helper Jagan Teki
2023-01-26 14:47 ` Maxime Ripard
2023-01-26 14:58 ` Jagan Teki
2023-01-26 14:44 ` [PATCH v12 03/18] drm: exynos: dsi: Drop explicit call to bridge detach Jagan Teki
2023-01-26 14:44 ` [PATCH v12 04/18] drm: exynos: dsi: Switch to devm_drm_of_dsi_get_bridge Jagan Teki
2023-01-26 14:44 ` [PATCH v12 05/18] drm: exynos: dsi: Mark PHY as optional Jagan Teki
2023-01-26 14:44 ` [PATCH v12 06/18] drm: exynos: dsi: Add platform PLL_P (PMS_P) offset Jagan Teki
2023-01-26 14:44 ` [PATCH v12 07/18] drm: exynos: dsi: Introduce hw_type platform data Jagan Teki
2023-01-26 14:44 ` [PATCH v12 08/18] drm: exynos: dsi: Handle proper host initialization Jagan Teki
2023-01-26 14:44 ` [PATCH v12 09/18] drm: exynos: dsi: Add atomic check Jagan Teki
2023-01-26 14:44 ` [PATCH v12 10/18] drm: exynos: dsi: Add input_bus_flags Jagan Teki
2023-01-26 14:44 ` [PATCH v12 11/18] drm: exynos: dsi: Add atomic_get_input_bus_fmts Jagan Teki
2023-01-26 15:29 ` Marek Vasut
2023-01-26 14:44 ` [PATCH v12 12/18] drm: exynos: dsi: Consolidate component and bridge Jagan Teki
2023-01-26 14:44 ` [PATCH v12 13/18] drm: exynos: dsi: Add host helper for te_irq_handler Jagan Teki
2023-01-26 14:44 ` [PATCH v12 15/18] dt-bindings: display: exynos: dsim: Add NXP i.MX8M Mini/Nano support Jagan Teki
2023-01-26 14:44 ` [PATCH v12 16/18] drm: bridge: samsung-dsim: Add " Jagan Teki
2023-01-26 14:44 ` [PATCH v12 17/18] dt-bindings: display: exynos: dsim: Add NXP i.MX8M Plus support Jagan Teki
2023-01-26 14:44 ` [PATCH v12 18/18] drm: bridge: samsung-dsim: Add " Jagan Teki
2023-01-27 10:33 ` [PATCH v12 00/18] drm: Add Samsung MIPI DSIM bridge Rasmus Villemoes
2023-01-27 10:39 ` Jagan Teki
2023-01-27 10:56 ` Rasmus Villemoes
2023-01-27 11:04 ` Jagan Teki
2023-01-27 11:30 ` Marek Vasut
2023-01-30 12:45 ` Rasmus Villemoes
2023-01-31 7:27 ` Alexander Stein
2023-02-01 22:00 ` Marek Vasut
2023-02-03 12:29 ` Rasmus Villemoes
2023-02-06 8:11 ` Frieder Schrempf
2023-02-07 9:09 ` Rasmus Villemoes
2023-02-07 9:23 ` Marek Vasut
2023-02-14 10:55 ` Rasmus Villemoes
2023-02-14 11:08 ` Rasmus Villemoes
2023-02-14 11:09 ` Fabio Estevam
2023-02-14 11:11 ` Fabio Estevam
2023-02-17 8:55 ` Rasmus Villemoes
2023-02-17 10:05 ` Alexander Stein
2023-02-17 18:22 ` Rasmus Villemoes
2023-02-22 10:05 ` Frieder Schrempf
2023-02-24 14:08 ` Rasmus Villemoes [this message]
2023-02-24 15:00 ` Adam Ford
2023-02-01 8:37 ` Frieder Schrempf
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