Backport [1] and fix [2] hardware buffer management. Also fix the IRQ storm caused by a misconfiguration of the PCA9538 interrupt pin [3]. [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/arch/arm/boot/dts/armada-385-turris-omnia.dts?id=018b88eee1a2efda26ed2f09aab33ccdc40ef18f [2] https://lore.kernel.org/linux-arm-kernel/20210217153038.1068170-1-rsalvaterra@gmail.com/ [3] https://lore.kernel.org/linux-arm-kernel/20210220231144.32325-1-kabel@kernel.org/ Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
