i.MX ProcessorsのトピックRe: iMX8QM Display Port (DP) Bring up Issue

iMX8QM Display Port (DP) Bring up Issue

prashanthkumar — Wed, 19 Jun 2019 14:40:30 GMT

Hi,

We are working on iMX8QM custom board (B0 CPU) with 4.14.98 Kernel BSP.
The DP(Display Port) interface is crashing while booting.

We tested the same with iMX8QM ARM2 LPDDR4 CPU Validation Board, in that also facing same issue.
We used below DTS file as reference for DP support.

arch/arm64/boot/dts/freescale/fsl-imx8qm-lpddr4-arm2-dp.dts

The boot log is attached for your reference.

Kindly support us to resolve above issue as soon as possible.

Best Regards,

Prashanth Kumar K

Re: iMX8QM Display Port (DP) Bring up Issue

igorpadykov — Wed, 19 Jun 2019 23:10:35 GMT

Hi Prashanth

Release Notes document from Linux L4.14.98_2.0.0 Documentation

shows supported functionalities, seems iMX8QM Display Port (DP) is not supported.

One can apply to local nxp office to try get support on that case.

Best regards
igor
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Re: iMX8QM Display Port (DP) Bring up Issue

prashanthkumar — Thu, 20 Jun 2019 04:34:59 GMT

Hi Igor,

The release notes Linux L4.14.98_2.0.0 Documentation

saying as below. Then DP should support it seems.

Is there any additional DTS configuration required for DP support?

Best Regards,

Prashanth Kumar K

Re: iMX8QM Display Port (DP) Bring up Issue

igorpadykov — Thu, 20 Jun 2019 05:44:52 GMT

Hi Prashanth

document shows "supports HDMI", not DP.

Also this is preprduction part with limited support.

Best regards
igor