stonetv

looks like the s905l3 is another of those amlogic socs where they did reduce the hw even further to bring down the price - for the s905l2 this one helped for me: https://github.com/hexdump0815/linux-mainline-and-mali-generic-stable-kernel/blob/master/misc.av8/dtb/meson-gxl-s905l2-x7-5g.dts but your trace looks different ... good luck for finding out what they changed this time
 
p.s.: it looks like the above change is needed there too, but looks like they even crippled the vpu and/or hdmi hw as well ...