linux-kernel - [PATCH] watchdog: rave-sp: add NVMEM dependency

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Date:   Mon, 15 Jan 2018 17:10:33 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     Pavel Machek <pavel@....cz>, Guenter Roeck <linux@...ck-us.net>,
        Nikita Yushchenko <nikita.yoush@...entembedded.com>,
        Andrey Smirnov <andrew.smirnov@...il.com>,
        Arnd Bergmann <arnd@...db.de>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        linux-watchdog@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] watchdog: rave-sp: add NVMEM dependency

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: c3bb33345721 ("watchdog: Add RAVE SP watchdog driver")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/watchdog/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 34d1c6851fa7..c09369f80989 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -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.
-- 
2.9.0