From: Soren Brinkmann <soren.brinkmann@xilinx.com>
To: Michal Simek <michal.simek@xilinx.com>,
Russell King <linux@arm.linux.org.uk>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>
Cc: "Sören Brinkmann" <soren.brinkmann@xilinx.com>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
linux-pm@vger.kernel.org, "Pawel Moll" <pawel.moll@arm.com>,
"Ian Campbell" <ijc+devicetree@hellion.org.uk>,
"Kumar Gala" <galak@codeaurora.org>
Subject: [PATCH 6/9] ARM: zynq: cpuidle: Remove pointless code
Date: Wed, 20 Aug 2014 13:41:52 -0700 [thread overview]
Message-ID: <1408567315-28479-7-git-send-email-soren.brinkmann@xilinx.com> (raw)
In-Reply-To: <1408567315-28479-1-git-send-email-soren.brinkmann@xilinx.com>
From: Daniel Lezcano <daniel.lezcano@linaro.org>
The core is not powered down, it is pointless to call the cpu_pm notifiers and
switch to the global timer.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-and-tested-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
---
drivers/cpuidle/cpuidle-zynq.c | 10 +---------
1 file changed, 1 insertion(+), 9 deletions(-)
diff --git a/drivers/cpuidle/cpuidle-zynq.c b/drivers/cpuidle/cpuidle-zynq.c
index aded75928028..c61b8b2a7c77 100644
--- a/drivers/cpuidle/cpuidle-zynq.c
+++ b/drivers/cpuidle/cpuidle-zynq.c
@@ -26,7 +26,6 @@
*/
#include <linux/init.h>
-#include <linux/cpu_pm.h>
#include <linux/cpuidle.h>
#include <linux/platform_device.h>
#include <asm/proc-fns.h>
@@ -38,15 +37,9 @@
static int zynq_enter_idle(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int index)
{
- /* Devices must be stopped here */
- cpu_pm_enter();
-
/* Add code for DDR self refresh start */
cpu_do_idle();
- /* Add code for DDR self refresh stop */
- cpu_pm_exit();
-
return index;
}
@@ -59,8 +52,7 @@ static struct cpuidle_driver zynq_idle_driver = {
.enter = zynq_enter_idle,
.exit_latency = 10,
.target_residency = 10000,
- .flags = CPUIDLE_FLAG_TIME_VALID |
- CPUIDLE_FLAG_TIMER_STOP,
+ .flags = CPUIDLE_FLAG_TIME_VALID,
.name = "RAM_SR",
.desc = "WFI and RAM Self Refresh",
},
--
2.0.1.1.gfbfc394
next prev parent reply other threads:[~2014-08-20 20:44 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-20 20:41 [PATCH 0/9] Zynq PM updates Soren Brinkmann
2014-08-20 20:41 ` [PATCH 1/9] ARM: zynq: PM: Enable A9 internal clock gating feature Soren Brinkmann
2014-08-21 12:19 ` Michal Simek
2014-08-21 17:20 ` Sören Brinkmann
2014-08-20 20:41 ` [PATCH 2/9] Documentation: devicetree: Add binding for Synopsys DDR controller Soren Brinkmann
2014-08-20 20:41 ` [PATCH 3/9] ARM: zynq: DT: Add DDRC node Soren Brinkmann
2014-08-20 20:41 ` [PATCH 4/9] ARM: zynq: PM: Enable DDR self-refresh and clock stop Soren Brinkmann
2014-08-21 12:25 ` Michal Simek
2014-08-21 18:59 ` Sören Brinkmann
2014-08-20 20:41 ` [PATCH 5/9] ARM: zynq: Remove invalidate cache for cpu die Soren Brinkmann
2014-08-20 20:41 ` Soren Brinkmann [this message]
2014-08-20 20:41 ` [PATCH 7/9] ARM: zynq: Synchronise zynq_cpu_die/kill Soren Brinkmann
2014-08-20 20:41 ` [PATCH 8/9] ARM: zynq: Remove hotplug.c Soren Brinkmann
2014-08-21 1:32 ` Daniel Lezcano
2014-08-21 23:38 ` Sören Brinkmann
2014-08-20 20:41 ` [PATCH 9/9] ARM: zynq: Rename 'zynq_platform_cpu_die' Soren Brinkmann
2014-08-21 12:28 ` Michal Simek
2014-08-21 19:02 ` Sören Brinkmann
2014-08-22 5:52 ` Michal Simek
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