Hi! > On Tue, Aug 15, 2017 at 09:15:28AM -0400, Sebastian Reichel wrote: > > Hi Pavel, > > > > On Mon, Aug 14, 2017 at 03:38:16PM +0200, Pavel Machek wrote: > > > I'm (still) trying to debug "N950 not booting" situation. I'm stuck > > > with black screen, so I thought it would be cool to use RGB led for > > > debugging... > > > > > > Unfortunately, I don't see required dts bindings in the mainline. > > > > > > Does anyone have that working? > > > > I have some N950 DTS patches lying around, I think RGB led was one > > of them. I'm currently in Canda for a company event without my N950, > > but I should be able to send something tested before the weekend. > > Below is a DTS snippet for N950, that has been tested by me > on top of 4.13-rc6. The left and right keyboard LEDs are > also debug LEDs for cpu idle modes, so they will be lit > without being enabled in lp5523. The status LED of N950 is > not RGB, but just white. Also you need this to get the driver > loading. Otherwise detection after reset fails even after > quite increases waiting times. Looks like the lp5523 reset > (which is not properly Ack'd by the device) breaks the omap-i2c > state horribly. Thanks a lot, LED now works. It took me a while, but I now have n950 usable with nfsroot. (For a while, anyway.) N9 is usable too. Hardware is similar enough than it could be possible to debug without serial cable. Best regards, Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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