From: rob.lee@linaro.org (Robert Lee)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v5 2/7] ARM: imx: Add comments to tzic_enable_waker()
Date: Mon, 21 May 2012 17:50:25 -0500 [thread overview]
Message-ID: <1337640630-29176-3-git-send-email-rob.lee@linaro.org> (raw)
In-Reply-To: <1337640630-29176-1-git-send-email-rob.lee@linaro.org>
Add additional comments to the tzic_enable_wake() funciton to
clarify its intended usage.
Signed-off-by: Robert Lee <rob.lee@linaro.org>
---
arch/arm/plat-mxc/tzic.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/arm/plat-mxc/tzic.c b/arch/arm/plat-mxc/tzic.c
index 98308ec..a45dbea 100644
--- a/arch/arm/plat-mxc/tzic.c
+++ b/arch/arm/plat-mxc/tzic.c
@@ -190,6 +190,10 @@ void __init tzic_init_irq(void __iomem *irqbase)
* tzic_enable_wake() - enable wakeup interrupt
*
* @return 0 if successful; non-zero otherwise
+ *
+ * This function provides an interrupt synchronization point that is required
+ * by tzic enabled platforms before entering imx specific low power modes (ie,
+ * those low power modes beyond the WAIT_CLOCKED basic ARM WFI only mode).
*/
int tzic_enable_wake(void)
{
--
1.7.10
next prev parent reply other threads:[~2012-05-21 22:50 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-21 22:50 [PATCH v5 0/7] cleanup imx5 idle, add imx5/6 cpuidle Robert Lee
2012-05-21 22:50 ` [PATCH v5 1/7] ARM: imx: Modify IMX_IO_P2V macro Robert Lee
2012-05-21 22:50 ` Robert Lee [this message]
2012-05-21 22:50 ` [PATCH v5 3/7] ARM: imx: clean and consolidate imx5 suspend and idle code Robert Lee
2012-05-21 22:50 ` [PATCH v5 4/7] ARM: imx: Enable imx53 low power idle Robert Lee
2012-05-21 22:50 ` [PATCH v5 5/7] ARM: imx: Add common imx cpuidle init functionality Robert Lee
2012-05-21 22:50 ` [PATCH v5 6/7] ARM: imx: Add imx5 cpuidle Robert Lee
2012-05-21 22:50 ` [PATCH v5 7/7] ARM: imx: Add imx6q cpuidle driver Robert Lee
2012-05-25 6:35 ` [PATCH v5 0/7] cleanup imx5 idle, add imx5/6 cpuidle Sascha Hauer
2012-06-20 10:30 ` Sascha Hauer
2012-06-20 14:15 ` Rob Lee
2012-06-25 4:49 ` Rob Lee
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