We are using a Beaglebone Black rev-C and need to have both DCAN1 and some 
of the GPIOs enabled at the same time.

So we've tried loading both the BB-CAN1-00A0 and the univ-emmc-00A0 
overlays.  That of course does not work since P9.24 and P9.26 conflict 
between the two.  So I modified univ-emmc-00A0.dts to not configure P9.24 
and P9.26.

Both overlays load and the GPIOs work fine.  But dcan1 does not.  If I do 
not load univ-emmc-00A0 and only load BB-CAN1-00A0, dcan1 works great but I 
loose my GPIOs.

CAN also does not work if I just load univ-emmc-00A0 and manually configure 
P9.24 and P9.26 to "can" using the config-pin script.   
(Not working means no data transferred when monitoring with a logic 
analyzer.)

Since this is my first time with dts files, I must be missing something 
here.    Any hints would be appreciated.

--Charles Johnson





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