ARM: mcpm: support 4 clusters

Add the CONFIG_MCPM_QUAD_CLUSTER configuration to enlarge cluster number
from 2 to 4.

Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Reviewed-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index c49a775937db..e43221ab4048 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1405,6 +1405,15 @@ config MCPM
           for (multi-)cluster based systems, such as big.LITTLE based
           systems.
 
+config MCPM_QUAD_CLUSTER
+        bool
+        depends on MCPM
+        help
+          To avoid wasting resources unnecessarily, MCPM only supports up
+          to 2 clusters by default.
+          Platforms with 3 or 4 clusters that use MCPM must select this
+          option to allow the additional clusters to be managed.
+
 config BIG_LITTLE
         bool "big.LITTLE support (Experimental)"
         depends on CPU_V7 && SMP