From: Robert Lee <rob.lee@linaro.org>
To: kernel@pengutronix.de
Cc: shawn.guo@linaro.org, amit.kucheria@linaro.org,
daniel.lezcano@linaro.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linaro-dev@lists.linaro.org,
patches@linaro.org, jj@chaosbits.net
Subject: [PATCH v3 3/3] ARM: imx: Add imx6q cpuidle driver
Date: Mon, 7 May 2012 16:16:47 -0500 [thread overview]
Message-ID: <1336425407-20308-4-git-send-email-rob.lee@linaro.org> (raw)
In-Reply-To: <1336425407-20308-1-git-send-email-rob.lee@linaro.org>
Add basic imx6q cpuidle driver. For now, only basic WFI state is
supported. Deeper idle states will be added in the future.
Signed-off-by: Robert Lee <rob.lee@linaro.org>
---
arch/arm/mach-imx/mach-imx6q.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c
index da6c1d9..4fc1fe7 100644
--- a/arch/arm/mach-imx/mach-imx6q.c
+++ b/arch/arm/mach-imx/mach-imx6q.c
@@ -10,7 +10,9 @@
* http://www.gnu.org/copyleft/gpl.html
*/
+#include <linux/cpuidle.h>
#include <linux/delay.h>
+#include <linux/export.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/irq.h>
@@ -21,6 +23,7 @@
#include <linux/of_platform.h>
#include <linux/phy.h>
#include <linux/micrel_phy.h>
+#include <asm/cpuidle.h>
#include <asm/smp_twd.h>
#include <asm/hardware/cache-l2x0.h>
#include <asm/hardware/gic.h>
@@ -28,8 +31,10 @@
#include <asm/mach/time.h>
#include <asm/system_misc.h>
#include <mach/common.h>
+#include <mach/cpuidle.h>
#include <mach/hardware.h>
+
void imx6q_restart(char mode, const char *cmd)
{
struct device_node *np;
@@ -86,6 +91,19 @@ static void __init imx6q_init_machine(void)
imx6q_pm_init();
}
+static struct cpuidle_driver imx6q_cpuidle_driver = {
+ .name = "imx6q_cpuidle",
+ .owner = THIS_MODULE,
+ .en_core_tk_irqen = 1,
+ .states[0] = ARM_CPUIDLE_WFI_STATE,
+ .state_count = 1,
+};
+
+static void __init imx6q_init_late(void)
+{
+ imx_cpuidle_init(&imx6q_cpuidle_driver);
+}
+
static void __init imx6q_map_io(void)
{
imx_lluart_map_io();
@@ -142,6 +160,7 @@ DT_MACHINE_START(IMX6Q, "Freescale i.MX6 Quad (Device Tree)")
.handle_irq = imx6q_handle_irq,
.timer = &imx6q_timer,
.init_machine = imx6q_init_machine,
+ .init_late = imx6q_init_late,
.dt_compat = imx6q_dt_compat,
.restart = imx6q_restart,
MACHINE_END
--
1.7.10
prev parent reply other threads:[~2012-05-07 21:17 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-07 21:16 [PATCH v3 0/3] Add imx cpuidle Robert Lee
2012-05-07 21:16 ` [PATCH v3 1/3] ARM: imx: Add common imx cpuidle init functionality Robert Lee
2012-05-07 21:16 ` [PATCH v3 2/3] ARM: imx: Add imx5 cpuidle driver Robert Lee
2012-05-09 8:02 ` Sascha Hauer
2012-05-09 14:27 ` Rob Lee
2012-05-10 12:41 ` Sascha Hauer
2012-05-10 14:10 ` Rob Lee
2012-05-07 21:16 ` Robert Lee [this message]
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