From: Deepthi Dharwar <deepthi@linux.vnet.ibm.com>
To: benh@kernel.crashing.org, daniel.lezcano@linaro.org,
linux-kernel@vger.kernel.org, michael@ellerman.id.au,
srivatsa.bhat@linux.vnet.ibm.com, preeti@linux.vnet.ibm.com,
svaidy@linux.vnet.ibm.com, linuxppc-dev@lists.ozlabs.org
Cc: rjw@sisk.pl, dongsheng.wang@freescale.com, linux-pm@vger.kernel.org
Subject: [PATCH V2 6/6] cpuidle/powernv: Enable idle powernv cpu to call into the cpuidle framework.
Date: Wed, 31 Jul 2013 08:29:49 +0530 [thread overview]
Message-ID: <20130731025947.19448.32213.stgit@deepthi> (raw)
In-Reply-To: <20130731025840.19448.24468.stgit@deepthi>
This patch enables idle powernv cpu to hook on to the cpuidle
framework, if available, else call on to default idle platform
code.
Signed-off-by: Deepthi Dharwar <deepthi@linux.vnet.ibm.com>
---
arch/powerpc/platforms/powernv/setup.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c
index 84438af..d4283dd 100644
--- a/arch/powerpc/platforms/powernv/setup.c
+++ b/arch/powerpc/platforms/powernv/setup.c
@@ -25,6 +25,7 @@
#include <linux/of.h>
#include <linux/interrupt.h>
#include <linux/bug.h>
+#include <linux/cpuidle.h>
#include <asm/machdep.h>
#include <asm/firmware.h>
@@ -196,6 +197,15 @@ static int __init pnv_probe(void)
return 1;
}
+void powernv_idle(void)
+{
+ /* Hook to cpuidle framework if available, else
+ * call on default platform idle code
+ */
+ if (cpuidle_idle_call())
+ power7_idle();
+}
+
define_machine(powernv) {
.name = "PowerNV",
.probe = pnv_probe,
@@ -205,7 +215,7 @@ define_machine(powernv) {
.show_cpuinfo = pnv_show_cpuinfo,
.progress = pnv_progress,
.machine_shutdown = pnv_shutdown,
- .power_save = power7_idle,
+ .power_save = powernv_idle,
.calibrate_decr = generic_calibrate_decr,
#ifdef CONFIG_KEXEC
.kexec_cpu_down = pnv_kexec_cpu_down,
prev parent reply other threads:[~2013-07-31 3:00 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-31 2:58 [PATCH V2 0/6] cpuidle/powerpc: POWERPC cpuidle driver for POWER and POWERNV platforms Deepthi Dharwar
2013-07-31 2:58 ` [PATCH V2 1/6] cpuidle/pseries: Fix kernel command line parameter smt-snooze-delay Deepthi Dharwar
2013-07-31 2:59 ` [PATCH V2 2/6] cpuidle/pseries: Remove dependency of pseries.h file Deepthi Dharwar
2013-07-31 2:59 ` [PATCH V2 3/6] pseries: Move plpar_wrapper.h to powerpc common include/asm location Deepthi Dharwar
2013-07-31 2:59 ` [PATCH V2 4/6] cpuidle/pseries: Move the pseries_idle backend driver to sysdev Deepthi Dharwar
2013-07-31 3:22 ` Wang Dongsheng-B40534
2013-07-31 3:59 ` Preeti U Murthy
2013-07-31 5:46 ` Wang Dongsheng-B40534
2013-08-01 4:56 ` Preeti U Murthy
2013-07-31 2:59 ` [PATCH V2 5/6] cpuidle/powerpc: Backend-powerpc idle driver for powernv and pseries Deepthi Dharwar
2013-07-31 4:01 ` Wang Dongsheng-B40534
2013-08-06 23:08 ` Scott Wood
2013-08-06 23:30 ` Benjamin Herrenschmidt
2013-08-06 23:41 ` Scott Wood
2013-08-19 4:43 ` Deepthi Dharwar
2013-07-31 2:59 ` Deepthi Dharwar [this message]
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