[PATCH v3] arm: Fix DEBUG_LL for multi-platform kernels (without PL01X)

[Daniel Thompson]

When building a multi_v7_defconfig kernel it is not possible to configure
DEBUG_LL to use any serial device except a ARM Primecell PL01X, or more
accurately and worse, it is possible to configure a different serial
device but KConfig does not honour this request. In fact this also
overrides the user selection for some of the single platform kernels, for
example I don't think DEBUG_LL can be targetted at ICE or semihosted
supervisor for ARCH_VERSATILE.

This happens because DEBUG_UART_PL01X is automatically enabled by
some architectures and this means user decisions made regarding
the DEBUG_LL backend will be overriden. Problem is fixed by removing the
automatic enabling of this option.

Signed-off-by: Daniel Thompson <daniel.thompson at linaro.org>
---

Notes:
    v3: Switch from def_bool to bool (thanks Russell King)
    v2: Remove pointless single platform support (thanks Arnd Bergmann)

 arch/arm/Kconfig.debug | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 0531da8..7e19c94 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -989,12 +989,7 @@ config DEBUG_LL_INCLUDE
 
 # Compatibility options for PL01x
 config DEBUG_UART_PL01X
-	def_bool ARCH_EP93XX || \
-		ARCH_INTEGRATOR || \
-		ARCH_SPEAR3XX || \
-		ARCH_SPEAR6XX || \
-		ARCH_SPEAR13XX || \
-		ARCH_VERSATILE
+	bool
 
 # Compatibility options for 8250
 config DEBUG_UART_8250
-- 
1.9.0