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authorPaul Burton <paul.burton@imgtec.com>2014-04-14 16:25:29 +0100
committerPaul Burton <paul.burton@imgtec.com>2014-05-28 16:20:36 +0100
commitd050894435cdc78807e714a0148527542a583e87 (patch)
tree39f95ee57dbe42e78945365e2b166161a24cc804 /drivers/cpuidle/Kconfig
parentf08dbf8a61462aa122b9b5077849a3f4bd84702a (diff)
downloadop-kernel-dev-d050894435cdc78807e714a0148527542a583e87.zip
op-kernel-dev-d050894435cdc78807e714a0148527542a583e87.tar.gz
cpuidle: cpuidle-cps: add MIPS CPS cpuidle driver
This patch adds a cpuidle driver for systems based around the MIPS Coherent Processing System (CPS) architecture. It supports four idle states: - The standard MIPS wait instruction. - The non-coherent wait, clock gated & power gated states exposed by the recently added pm-cps layer. The pm-cps layer is used to enter all the deep idle states. Since cores in the clock or power gated states cannot service interrupts, the gic_send_ipi_single function is modified to send a power up command for the appropriate core to the CPC in cases where the target CPU has marked itself potentially incoherent. Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Diffstat (limited to 'drivers/cpuidle/Kconfig')
-rw-r--r--drivers/cpuidle/Kconfig5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/cpuidle/Kconfig b/drivers/cpuidle/Kconfig
index f04e25f..1b96fb9 100644
--- a/drivers/cpuidle/Kconfig
+++ b/drivers/cpuidle/Kconfig
@@ -35,6 +35,11 @@ depends on ARM
source "drivers/cpuidle/Kconfig.arm"
endmenu
+menu "MIPS CPU Idle Drivers"
+depends on MIPS
+source "drivers/cpuidle/Kconfig.mips"
+endmenu
+
menu "POWERPC CPU Idle Drivers"
depends on PPC
source "drivers/cpuidle/Kconfig.powerpc"
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