staging: greybus: enable compile testing of arche driver

Add Arche platform-driver config option and allow the driver to be
compile tested also without the out-of-tree usb3613 driver.

Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/greybus/Kconfig b/drivers/staging/greybus/Kconfig
index 50de2d7..ab096bc 100644 (file)
--- a/drivers/staging/greybus/Kconfig
+++ b/drivers/staging/greybus/Kconfig
@@ -216,4 +216,14 @@ config GREYBUS_USB
          will be called gb-usb.ko
 
 endif  # GREYBUS_BRIDGED_PHY
+
+config GREYBUS_ARCHE
+       tristate "Greybus Arche Platform driver"
+       depends on USB_HSIC_USB3613 || COMPILE_TEST
+       ---help---
+         Select this option if you have an Arche device.
+
+         To compile this code as a module, chose M here: the module
+         will be called gb-arche.ko
+
 endif  # GREYBUS

diff --git a/drivers/staging/greybus/Makefile b/drivers/staging/greybus/Makefile
index b26b9a3..23e1cb7 100644 (file)
--- a/drivers/staging/greybus/Makefile
+++ b/drivers/staging/greybus/Makefile
@@ -91,4 +91,4 @@ obj-$(CONFIG_GREYBUS_USB)             += gb-usb.o
 # Greybus Platform driver
 gb-arche-y     := arche-platform.o arche-apb-ctrl.o
 
-obj-$(CONFIG_USB_HSIC_USB3613) += gb-arche.o
+obj-$(CONFIG_GREYBUS_ARCHE)    += gb-arche.o

diff --git a/drivers/staging/greybus/arche-platform.c b/drivers/staging/greybus/arche-platform.c
index 9e644bf..5bce5e0 100644 (file)
--- a/drivers/staging/greybus/arche-platform.c
+++ b/drivers/staging/greybus/arche-platform.c
@@ -24,7 +24,14 @@
 #include "arche_platform.h"
 #include "greybus.h"
 
+#if IS_ENABLED(CONFIG_USB_HSIC_USB3613)
 #include <linux/usb/usb3613.h>
+#else
+static inline int usb3613_hub_mode_ctrl(bool unused)
+{
+       return 0;
+}
+#endif
 
 #define WD_COLDBOOT_PULSE_WIDTH_MS     30