With the kernel rel_imx_3.10.17_1.0.0_ga we always get an error "Illegal instruction" in the Qt5 multimedia using GPU and HDMI audio, if we revert "ENGR00305624-1 ASoC: imx-hdmi-dma: Use neon data copy function" - the error disappears. In vanilla Linux kernel support for kernel mode NEON appeared since version 3.12.
kernel/git/torvalds/linux.git - Linux kernel source tree
