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Interfacing (DSI, CSI, I2C, etc.) • Re: DT Overlay for lt9211d driver

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I don't see the GPIO function (ALT mode) configure.
For Pi5 you should be able to get an idea from the backlight definition in the overlay posted here
viewtopic.php?t=384397#p2298342
Thanks for that. I've got it fixed by adding ALTfunction code.

Code:

/* PWM0 function */fragment@0 {target = <&gpio>;__overlay__ {pwm_pins: pwm_pins {brcm,pins = <12>;brcm,function = <4>; /* ALT4 = PWM out */brcm,pull = <0>;};};};
Now I'm getting.

Code:

[    3.088911] lt9211 11-002d: ByteClock in kHz 0[    3.090425] lt9211 11-002d: Unsupported DSI pixel format 0x0
At this moment I have DSI signals out of Rpi5, which is good.
Any ideas how to get correct pixel format and kHz values out of bridge?

Statistics: Posted by kib3 — Tue Mar 04, 2025 3:04 pm



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