Hello,
We are using an eDP panel and would like to control its power through the DP driver. When system suspend/resume, the panel power can be output high or low.
We added some printk in Linux_for_Tegra/source/kernel/kernel-jammy-src/drivers/gpu/drm, but the logs are not appearing in dmesg
I noticed another display driver called nvdisplay. If I want to control the panel power, should I add the control logic to nvdisplay instead?
My Linux version is r36.4.0
There is no eDP support for Jetson Orin.
Hello,
"It seems there was a misunderstanding in my previous explanation. We are successfully outputting a signal to an eDP panel via the DP port. So, my question should be about the DP driver’s suspend/resume functionality.
I’ve tried adding log to Linux_for_Tegra/source/kernel/kernel-jammy-src/drivers/gpu/drm, but they aren’t showing up as I anticipated. So the question is which file or folder would be the appropriate place to add GPIO control for powering the panel on and off during DP suspend/resume?"
No, it is not. There is no such driver to do this work as I said eDP has no support.
We notice the DP driver may not fully support eDP in some cases recently and would remove every item related to eDP in the document.
Understood. Thank you so much.
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