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>
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@ -147,12 +147,10 @@ extern int imx_cpu_kill(unsigned int cpu);
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#ifdef CONFIG_PM
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extern void imx6q_pm_init(void);
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extern void imx51_pm_init(void);
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extern void imx53_pm_init(void);
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extern void imx5_pm_init(void);
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#else
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static inline void imx6q_pm_init(void) {}
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static inline void imx51_pm_init(void) {}
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static inline void imx53_pm_init(void) {}
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static inline void imx5_pm_init(void) {}
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#endif
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#ifdef CONFIG_NEON
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@ -153,10 +153,10 @@ void __init imx51_soc_init(void)
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void __init imx51_init_late(void)
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{
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mx51_neon_fixup();
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imx51_pm_init();
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imx5_pm_init();
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}
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void __init imx53_init_late(void)
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{
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imx53_pm_init();
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imx5_pm_init();
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}
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@ -169,14 +169,9 @@ static int __init imx5_pm_common_init(void)
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return imx5_cpuidle_init();
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}
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void __init imx51_pm_init(void)
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void __init imx5_pm_init(void)
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{
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int ret = imx5_pm_common_init();
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if (!ret)
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suspend_set_ops(&mx5_suspend_ops);
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}
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void __init imx53_pm_init(void)
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{
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imx5_pm_common_init();
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}
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