[CELL] cbe_cpufreq: reorganize code

This patch reorganizes the code of the driver into three files.
Two cbe_cpufreq_pmi.c and cbe_cpufreq_pervasive.c care about hardware.
cbe_cpufreq.c contains the logic.
There is no changed behaviour, except that the PMI related function
is now located in a seperate module cbe_cpufreq_pmi. This module
will be required by cbe_cpufreq, if CONFIG_CBE_CPUFREQ_PMI has been set.

Signed-off-by: Christian Krafft <krafft@de.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/cell/Kconfig b/arch/powerpc/platforms/cell/Kconfig
index 9b2b386ccf4..ac8032034fb 100644
--- a/arch/powerpc/platforms/cell/Kconfig
+++ b/arch/powerpc/platforms/cell/Kconfig
@@ -73,4 +73,14 @@ 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
+        default n
+        help
+          Select this, if you want to use the PMI interface
+          to switch frequencies. Using PMI, the
+          processor will not only be able to run at lower speed,
+          but also at lower core voltage.
+
 endmenu