Christian Pötzsch 30e1733297 virtio: Fix virtio initialization sequence
The virtio spec clearly states in "3.1.1 Driver Requirements: Device
Initialization" the sequence a client has to follow after device reset.
Because u-boot resets here again, it also needs to set the "acknowledge"
bit again even if this was done in virtio_uclass_child_post_bind already
once before.

Signed-off-by: Christian Pötzsch <christian.poetzsch@kernkonzept.com>
Signed-off-by: Adam Lackorzynski <adam@l4re.org>
[trini: Add VIRTIO_CONFIG_S_ACKNOWLEDGE flag check to the test]
Signed-off-by: Tom Rini <trini@konsulko.com>
2026-03-25 14:33:00 -06:00
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