From 547dd1e089db9927ad95cfb525152fec5153cfeb Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Fri, 26 Jul 2013 00:17:36 -0300 Subject: [PATCH] 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 Signed-off-by: Shawn Guo --- arch/arm/mach-imx/common.h | 6 ++---- arch/arm/mach-imx/mm-imx5.c | 4 ++-- arch/arm/mach-imx/pm-imx5.c | 7 +------ 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(); -} -- 2.7.4