dm: Add a new uclass driver for VirtIO transport devices
This adds a new virtio uclass driver for “virtio” [1] family of
devices that are are found in virtual environments like QEMU,
yet by design they look like physical devices to the guest.
The uclass driver provides child_pre_probe() and child_post_probe()
methods to do some common operations for virtio device drivers like
device and driver supported feature negotiation, etc.
[1] http://docs.oasis-open.org/virtio/virtio/v1.0/virtio-v1.0.pdf
Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/Kconfig b/drivers/Kconfig
index 927a2b8..4ac823d 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -112,6 +112,8 @@
source "drivers/video/Kconfig"
+source "drivers/virtio/Kconfig"
+
source "drivers/w1/Kconfig"
source "drivers/w1-eeprom/Kconfig"