About SN65DSI86 Error [*ERROR* could not find any panel node"]

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About SN65DSI86 Error [*ERROR* could not find any panel node"]

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ysato_ad
Contributor II

Hello.

I designed a custom board with reference to i.MX8M Mini EVK.
On the custom board I am trying to connect MIPI DSI to TI SN65DSI86 and view it on an HDMI monitor using DP->HDMI conversion from mDP connector.
* DP->HDMI conversion: https://www.ainex.jp/products/amc-mdphd/

I used the following URL for the SN65DSI86 driver.
https://github.com/torvalds/linux/blob/master/drivers/gpu/drm/bridge/ti-sn65dsi86.c

We also made changes based on the patch below.
https://patchwork.kernel.org/patch/11277755/

However, the error "[drm:ti_sn_bridge_probe] *ERROR* could not find any panel node" still occurred,
I can't display on the Displayport.

Is the device-tree wrong?


The device tree and dmesg are attached.

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Egor_I_InertgasM
Contributor II

Has anybody advance in integrating SN65DSI86 into the system on i.MX8M Mini EVK?

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talel_hajsalem
Contributor III

Hi,

I'm using SN65DSI86 as well, did you find a solution ?

Can you provide me with your Device Tree file ?

Thanks, Talel

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igorpadykov
NXP Employee
NXP Employee

Hi Yuichi

example of sn65dsi84 integration can be found in technexion linux release

linux-imx-tn/imx8mm-pico-pi-sn65dsi84-hj070na.dts at tn-imx_4.14.98_2.0.0_ga-wip-mipi2lvds · TechNex... 

Best regards
igor
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ysato_ad
Contributor II

Thank you for your reply.

Is there an example of SN65DSI86?

(SN65DSI84) DSI->LVDS
(SN65DSI86) DSI->Displayport
I want to display it on a Displayport display monitor.

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igorpadykov
NXP Employee
NXP Employee

SN65DSI86 has similar dts as SN65DSI84.

>Is there an example of SN65DSI86?

sorry I am not aware of such example

Best regards
igor

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