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authorFabio Estevam <fabio.estevam@freescale.com>2013-07-26 00:17:36 -0300
committerShawn Guo <shawn.guo@linaro.org>2013-08-22 23:20:45 +0800
commit547dd1e089db9927ad95cfb525152fec5153cfeb (patch)
tree4ef558be6c04065b706db99ea48df8005f2bcd7a /arch/arm
parentf36b594f37545eedb0358db88b071137dccd1582 (diff)
downloadop-kernel-dev-547dd1e089db9927ad95cfb525152fec5153cfeb.zip
op-kernel-dev-547dd1e089db9927ad95cfb525152fec5153cfeb.tar.gz
ARM: mx53: Allow suspend/resume
Current imx53_pm_init() implementation is incomplete as it lacks calling suspend_set_ops(). Use a single imx5_pm_init() function to handle both mx51 and mx53. This allows mx53 to enter in low-power mode. Tested on a mx53qsb: root@freescale /$ echo mem > /sys/power/state PM: Syncing filesystems ... done. mmc0: card e624 removed Freezing user space processes ... (elapsed 0.001 seconds) done. Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done. Suspending console(s) (use no_console_suspend to debug) ... (Press Power button) PM: suspend of devices complete after 17.067 msecs PM: suspend devices took 0.020 seconds PM: late suspend of devices complete after 0.954 msecs PM: noirq suspend of devices complete after 1.288 msecs Disabling non-boot CPUs ... PM: noirq resume of devices complete after 0.680 msecs PM: early resume of devices complete after 0.914 msecs PM: resume of devices complete after 44.955 msecs PM: resume devices took 0.050 seconds Restarting tasks ... done. mmc0: host does not support reading read-only switch. assuming write-enable. mmc0: new SDHC card at address e624 mmcblk0: mmc0:e624 SU04G 3.69 GiB mmcblk0: p1 p2 p3 libphy: 63fec000.etherne:00 - Link is Down libphy: 63fec000.etherne:00 - Link is Up - 100/Full root@freescale /$ Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mach-imx/common.h6
-rw-r--r--arch/arm/mach-imx/mm-imx5.c4
-rw-r--r--arch/arm/mach-imx/pm-imx5.c7
3 files changed, 5 insertions, 12 deletions
diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h
index b96aff7..cdc9288 100644
--- a/arch/arm/mach-imx/common.h
+++ b/arch/arm/mach-imx/common.h
@@ -147,12 +147,10 @@ extern int imx_cpu_kill(unsigned int cpu);
#ifdef CONFIG_PM
extern void imx6q_pm_init(void);
-extern void imx51_pm_init(void);
-extern void imx53_pm_init(void);
+extern void imx5_pm_init(void);
#else
static inline void imx6q_pm_init(void) {}
-static inline void imx51_pm_init(void) {}
-static inline void imx53_pm_init(void) {}
+static inline void imx5_pm_init(void) {}
#endif
#ifdef CONFIG_NEON
diff --git a/arch/arm/mach-imx/mm-imx5.c b/arch/arm/mach-imx/mm-imx5.c
index cf193d8..a8229b7 100644
--- a/arch/arm/mach-imx/mm-imx5.c
+++ b/arch/arm/mach-imx/mm-imx5.c
@@ -153,10 +153,10 @@ void __init imx51_soc_init(void)
void __init imx51_init_late(void)
{
mx51_neon_fixup();
- imx51_pm_init();
+ imx5_pm_init();
}
void __init imx53_init_late(void)
{
- imx53_pm_init();
+ imx5_pm_init();
}
diff --git a/arch/arm/mach-imx/pm-imx5.c b/arch/arm/mach-imx/pm-imx5.c
index 82e79c6..58aeaf5 100644
--- a/arch/arm/mach-imx/pm-imx5.c
+++ b/arch/arm/mach-imx/pm-imx5.c
@@ -169,14 +169,9 @@ static int __init imx5_pm_common_init(void)
return imx5_cpuidle_init();
}
-void __init imx51_pm_init(void)
+void __init imx5_pm_init(void)
{
int ret = imx5_pm_common_init();
if (!ret)
suspend_set_ops(&mx5_suspend_ops);
}
-
-void __init imx53_pm_init(void)
-{
- imx5_pm_common_init();
-}
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