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watchdog: rave-sp: add NVMEM dependency

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We can build this driver with or without NVMEM, but not built-in
when NVMEM is a loadable module:

drivers/watchdog/rave-sp-wdt.o: In function `rave_sp_wdt_probe':
rave-sp-wdt.c:(.text+0x27c): undefined reference to `nvmem_cell_get'
rave-sp-wdt.c:(.text+0x290): undefined reference to `nvmem_cell_read'
rave-sp-wdt.c:(.text+0x2c4): undefined reference to `nvmem_cell_put'

This adds a Kconfig dependency to enforce that.

Fixes: c3bb333457 ("watchdog: Add RAVE SP watchdog driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
This commit is contained in:
Arnd Bergmann 2018-01-15 17:10:33 +01:00 committed by Wim Van Sebroeck
parent 91ab883eb2
commit 20e6bb17fa
1 changed files with 1 additions and 0 deletions
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drivers/watchdog/Kconfig
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@ -226,6 +226,7 @@ config ZIIRAVE_WATCHDOG
config RAVE_SP_WATCHDOG
tristate "RAVE SP Watchdog timer"
depends on RAVE_SP_CORE
depends on NVMEM || !NVMEM
select WATCHDOG_CORE
help
Support for the watchdog on RAVE SP device.