From: Randy Dunlap <rdun...@infradead.org>

Fix kconfig dependencies when COMPILE_TEST is enabled so that
interdependent module dependencies are configured as needed.

Fixes build when WM831X_WATCHDOG=m and COMPILE_TEST=y.
No other WM831X drivers are enabled.
The problem is in mixing tristate and boolean dependencies.

ERROR: "wm831x_reg_write" [drivers/watchdog/wm831x_wdt.ko] undefined!
ERROR: "wm831x_reg_read" [drivers/watchdog/wm831x_wdt.ko] undefined!
ERROR: "wm831x_reg_unlock" [drivers/watchdog/wm831x_wdt.ko] undefined!
ERROR: "wm831x_reg_lock" [drivers/watchdog/wm831x_wdt.ko] undefined!
ERROR: "wm831x_set_bits" [drivers/watchdog/wm831x_wdt.ko] undefined!

Signed-off-by: Randy Dunlap <rdun...@infradead.org>
Cc:     patc...@opensource.wolfsonmicro.com
Cc:     Mark Brown <broo...@kernel.org>
---
 drivers/watchdog/Kconfig |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- linux-next-20170228.orig/drivers/watchdog/Kconfig
+++ linux-next-20170228/drivers/watchdog/Kconfig
@@ -176,7 +176,7 @@ config WDAT_WDT
 
 config WM831X_WATCHDOG
        tristate "WM831x watchdog"
-       depends on MFD_WM831X || COMPILE_TEST
+       depends on MFD_WM831X || (MFD_WM831X=y && COMPILE_TEST)
        select WATCHDOG_CORE
        help
          Support for the watchdog in the WM831x AudioPlus PMICs.  When

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