Been trying to interface a custom 4-lane MIPI DSI panel and spent some time learning the basics. I have written up a driver based on panel-jadard-jd9365da-h3.c.
Done the TCON, comparability string, dts, nRESET timing and init code according to the data sheet. But the panel is not working.
Would love to hear from the community with experience on debugging approach, specifically:
If the MIPI DSI port is successfully binded with the drm driver, what mode will it operate on by default? I measure the voltage of Data pin 0 positive, its 3.3v when not connected and 2.65v when connected to the panel. (I think) I have set the DSI mode to LPM and it should be around 1.2v?
Done the TCON, comparability string, dts, nRESET timing and init code according to the data sheet. But the panel is not working.
Would love to hear from the community with experience on debugging approach, specifically:
If the MIPI DSI port is successfully binded with the drm driver, what mode will it operate on by default? I measure the voltage of Data pin 0 positive, its 3.3v when not connected and 2.65v when connected to the panel. (I think) I have set the DSI mode to LPM and it should be around 1.2v?
Statistics: Posted by csvke — Tue Jan 14, 2025 7:06 pm — Replies 2 — Views 51