[PATCH] usb: Correct dependencies around USB_EMUL

[Tom Rini]

The symbol USB_EMUL is how sandbox has access to USB. It's
implementation however enforces a few other requirements. It must have
SCSI enabled, and in turn that means it must have BLK enabled. Finally,
we should not be using SANDBOX itself as a symbol to decide what to
build or not build here, as SANDBOX is selected for COMPILE_TEST builds
as well and so may not have enabled the sandbox specific USB support.

Signed-off-by: Tom Rini <trini at konsulko.com>
---
Cc: Marek Vasut <marek.vasut at mailbox.org>
---
 drivers/usb/emul/Kconfig  | 2 ++
 drivers/usb/host/Makefile | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/emul/Kconfig b/drivers/usb/emul/Kconfig
index 279f6c6d7404..8ba372453e37 100644
--- a/drivers/usb/emul/Kconfig
+++ b/drivers/usb/emul/Kconfig
@@ -1,7 +1,9 @@
 config USB_EMUL
 	bool "Support for USB device emulation"
 	depends on SANDBOX
+	select BLK
 	select DM_USB
+	select SCSI
 	select USB_HOST
 	help
 	  Since sandbox does not have access to a real USB bus, it is possible
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index ef4ce62a680c..9cac53f07c7a 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -5,7 +5,7 @@
 
 ifdef CONFIG_$(PHASE_)DM_USB
 obj-y += usb-uclass.o
-obj-$(CONFIG_SANDBOX) += usb-sandbox.o
+obj-$(CONFIG_USB_EMUL) += usb-sandbox.o
 endif
 
 ifdef CONFIG_$(PHASE_)USB_STORAGE
-- 
2.43.0