topic I.MX6 MIPI DSI problem with platform SDK in i.MX Processors

I.MX6 MIPI DSI problem with platform SDK

hakanakis — Thu, 26 Jan 2017 20:52:25 GMT

Hello,

I am using i.mx6dl sabre sd board and MIPI DSI display connected by MIPI expansion port. Display panel has HX8363A controller on it.

I have configured linux dts files and bootcmd, wrote new display panel driver for HX8363A display panel. It is working as intented. However, I cannot be able to display image with baremetal sofware.

I have to achieve this with baremeral software. With platform SDK software, I am conducting ipu tests. LDB tests are succesful. There is also MIPI DSI tests under Platform SDK. I am wondering whether MIPI DSI tests under Platform SDK is working or not? I have modified MIPI DSI tests for HX8363A display panel, but tests are failed. No image is displayed. I don't know what i am missing. What can be the problem?

Re: I.MX6 MIPI DSI problem with platform SDK

igorpadykov — Fri, 27 Jan 2017 05:12:04 GMT

Hi hakan

one can try to run these tests on Sabre SD reference board using

sect.5. MIPI test SDK Unit Test Procedures.pdf included in SDK /doc

folder.

Best regards
igor
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Re: I.MX6 MIPI DSI problem with platform SDK

hakanakis — Fri, 27 Jan 2017 11:01:26 GMT

I have tried to run these tests but they didnt work. I have changed the LCD_INIT fuction according to the display panel used(hx8363A) and also display panel channel structure to update timings. I guess that my problem is with CCM configuration. What are the necessary clock setting(values, clock route etc.) for proper operation of MIPI DSI and IPU?

Re: I.MX6 MIPI DSI problem with platform SDK

igorpadykov — Fri, 27 Jan 2017 11:21:56 GMT

SDK provided "as is", without support.

In general one can printf DSI registers in linux and compare with SDK.

Best regards
igor