Add CONFIG_VIRTIO_MMIO_POLL_RESET to as an option to enable synchronous reset for the MMIO based transport for virtio. Change-Id: Ifa7e29b4c0cfa26922535f921c6ab69eacdc4cfc Signed-off-by: Jianguo Sun <quic_jianguos@xxxxxxxxxxx> Signed-off-by: Anant Goel <quic_anantg@xxxxxxxxxxx> --- drivers/virtio/Kconfig | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/virtio/Kconfig b/drivers/virtio/Kconfig index 42a48ac763ee..fb17b1078d53 100644 --- a/drivers/virtio/Kconfig +++ b/drivers/virtio/Kconfig @@ -188,4 +188,12 @@ config VIRTIO_DEBUG If unsure, say N. +config VIRTIO_MMIO_POLL_RESET + bool "Virti-mmio device synchronous reset support" + depends on VIRTIO_MMIO + help + Say y here to enable synchronous reset for the MMIO transport based + virtio device. After writing 0 to device_status, the driver must + wait for a read of device_status to return 0 before reinitializing + the device. endif # VIRTIO_MENU -- 2.17.1
