powerpc/cell: Fix dependency in cpufreq

cbe_cpufreq has a partial dependency on cbe_cpufreq_pmi, which cannot
be easily expressed in Kconfig. This fixes it by introducing an
extra Kconfig symbol CBE_CPUFREQ_PMI_ENABLE. To make the dependency
clearer, turn PPC_PMI into an automatic symbol.

Reported-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig
index b25404c..b4ab372 100644 (file)
--- a/arch/powerpc/platforms/Kconfig
+++ b/arch/powerpc/platforms/Kconfig
@@ -92,15 +92,6 @@ config RTAS_FLASH
        tristate "Firmware flash interface"
        depends on PPC64 && RTAS_PROC
 
-config PPC_PMI
-       tristate "Support for PMI"
-       depends on PPC_IBM_CELL_BLADE
-       help
-         PMI (Platform Management Interrupt) is a way to
-         communicate with the BMC (Baseboard Management Controller).
-         It is used in some IBM Cell blades.
-       default m
-
 config MMIO_NVRAM
        bool
        default n

diff --git a/arch/powerpc/platforms/cell/Kconfig b/arch/powerpc/platforms/cell/Kconfig
index 5cc3279..037f59a 100644 (file)
--- a/arch/powerpc/platforms/cell/Kconfig
+++ b/arch/powerpc/platforms/cell/Kconfig
@@ -98,7 +98,7 @@ config PPC_IBM_CELL_RESETBUTTON
 
 config PPC_IBM_CELL_POWERBUTTON
        tristate "IBM Cell Blade power button"
-       depends on PPC_IBM_CELL_BLADE && PPC_PMI && INPUT_EVDEV
+       depends on PPC_IBM_CELL_BLADE && INPUT_EVDEV
        default y
        help
          Support Powerbutton on IBM Cell blades.
@@ -118,9 +118,9 @@ config CBE_CPUFREQ
          For details, take a look at <file:Documentation/cpu-freq/>.
          If you don't have such processor, say N
 
-config CBE_CPUFREQ_PMI
-       tristate "CBE frequency scaling using PMI interface"
-       depends on CBE_CPUFREQ && PPC_PMI && EXPERIMENTAL
+config CBE_CPUFREQ_PMI_ENABLE
+       bool "CBE frequency scaling using PMI interface"
+       depends on CBE_CPUFREQ && EXPERIMENTAL
        default n
        help
          Select this, if you want to use the PMI interface
@@ -128,6 +128,20 @@ config CBE_CPUFREQ_PMI
          processor will not only be able to run at lower speed,
          but also at lower core voltage.
 
+config CBE_CPUFREQ_PMI
+       tristate
+       depends on CBE_CPUFREQ_PMI_ENABLE
+       default CBE_CPUFREQ
+
+config PPC_PMI
+       tristate
+       default y
+       depends on CBE_CPUFREQ_PMI || PPC_IBM_CELL_POWERBUTTON
+       help
+         PMI (Platform Management Interrupt) is a way to
+         communicate with the BMC (Baseboard Management Controller).
+         It is used in some IBM Cell blades.
+
 config CBE_CPUFREQ_SPU_GOVERNOR
        tristate "CBE frequency scaling based on SPU usage"
        depends on SPU_FS && CPU_FREQ