[PATCH 5.4 205/214] ARM: samsung: fix PM debug build with DEBUG_LL but !MMU

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From: Krzysztof Kozlowski <krzk@xxxxxxxxxx>

commit 7be0d19c751b02db778ca95e3274d5ea7f31891c upstream.

Selecting CONFIG_SAMSUNG_PM_DEBUG (depending on CONFIG_DEBUG_LL) but
without CONFIG_MMU leads to build errors:

  arch/arm/plat-samsung/pm-debug.c: In function ‘s3c_pm_uart_base’:
  arch/arm/plat-samsung/pm-debug.c:57:2: error:
    implicit declaration of function ‘debug_ll_addr’ [-Werror=implicit-function-declaration]

Fixes: 99b2fc2b8b40 ("ARM: SAMSUNG: Use debug_ll_addr() to get UART base address")
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20200910154150.3318-1-krzk@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 arch/arm/plat-samsung/Kconfig |    1 +
 1 file changed, 1 insertion(+)

--- a/arch/arm/plat-samsung/Kconfig
+++ b/arch/arm/plat-samsung/Kconfig
@@ -241,6 +241,7 @@ config SAMSUNG_PM_DEBUG
 	depends on PM && DEBUG_KERNEL
 	depends on PLAT_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210
 	depends on DEBUG_EXYNOS_UART || DEBUG_S3C24XX_UART || DEBUG_S3C2410_UART
+	depends on DEBUG_LL && MMU
 	help
 	  Say Y here if you want verbose debugging from the PM Suspend and
 	  Resume code. See <file:Documentation/arm/samsung-s3c24xx/suspend.rst>





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