experts i am trying to support imx8mq DP doesnt support why help me to resolve this

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experts i am trying to support imx8mq DP doesnt support why help me to resolve this

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solve_this
Contributor II
 
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solve_this
Contributor II

Screenshot from 2024-01-18 10-43-27.png

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solve_this
Contributor II
@brian14 Hello sir after applying changes i am stucking at this log
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brian14
NXP TechSupport
NXP TechSupport

Hi @solve_this

Thank you for contacting NXP Support.

Could you please give more details about your issue?
Are you using a custom board or our EVK?

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solve_this
Contributor II
hello @brian14 sir
Now i am working the custom Board
i need support for DP(Display port)
Here is my software details
Driver-Cadence DP DRM driver
DTS(Device tree source):

/dts-v1/;

#include "imx8mq-iwg33d-prgwd.dts"

&irqsteer {
status = "okay";
};

&dcss {
status = "okay";
disp-dev = "hdmi_disp";

port@0 {
dcss_out: endpoint {
remote-endpoint = <&hdmi_in>;
};
};
};

&hdmi {
compatible = "cdn,imx8mq-dp";
lane-mapping = <0xc6>;
hdcp-config = <0x3>;
status = "okay";

port@1 {
hdmi_in: endpoint {
remote-endpoint = <&dcss_out>;
};
};
};
And Also i Disabled the HDMI support as well
By following the above:
cdns-mhdp-imx 32c00000.hdmi: lane-mapping 0xc6
[drm] Both HDCP 1.4 and 2.2 are enabled
cdns-mhdp-imx 32c00000.hdmi: wrong link rate index
imx-dcss 32e00000.display-controller: bound 32c00000.hdmi (ops cdns_mhdp_imx_ops)
[drm] Initialized imx-dcss 1.0.0 20190917 for 32e00000.display-controller on minor 0
i getting this error prints
For DP :
flashed through DP bin and dtb has been changed in uboot as well


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brian14
NXP TechSupport
NXP TechSupport

Hi @solve_this

Thank you for your reply.

Please have a look on the following community thread:
iMX8MQ DP support in 5.4.70 - NXP Community

These configurations could help you to properly set your custom board and support DP.

Have a great day!

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solve_this
Contributor II
Even though the Error occurs the same
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