008d23e485
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (43 commits) Documentation/trace/events.txt: Remove obsolete sched_signal_send. writeback: fix global_dirty_limits comment runtime -> real-time ppc: fix comment typo singal -> signal drivers: fix comment typo diable -> disable. m68k: fix comment typo diable -> disable. wireless: comment typo fix diable -> disable. media: comment typo fix diable -> disable. remove doc for obsolete dynamic-printk kernel-parameter remove extraneous 'is' from Documentation/iostats.txt Fix spelling milisec -> ms in snd_ps3 module parameter description Fix spelling mistakes in comments Revert conflicting V4L changes i7core_edac: fix typos in comments mm/rmap.c: fix comment sound, ca0106: Fix assignment to 'channel'. hrtimer: fix a typo in comment init/Kconfig: fix typo anon_inodes: fix wrong function name in comment fix comment typos concerning "consistent" poll: fix a typo in comment ... Fix up trivial conflicts in: - drivers/net/wireless/iwlwifi/iwl-core.c (moved to iwl-legacy.c) - fs/ext4/ext4.h Also fix missed 'diabled' typo in drivers/net/bnx2x/bnx2x.h while at it.
50 lines
1,002 B
C
50 lines
1,002 B
C
/*
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* i.MX27 Power Management Routines
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*
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* Based on Freescale's BSP
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License.
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*/
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#include <linux/kernel.h>
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#include <linux/suspend.h>
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#include <linux/io.h>
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#include <mach/system.h>
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#include <mach/mx27.h>
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static int mx27_suspend_enter(suspend_state_t state)
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{
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u32 cscr;
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switch (state) {
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case PM_SUSPEND_MEM:
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/* Clear MPEN and SPEN to disable MPLL/SPLL */
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cscr = __raw_readl(MX27_IO_ADDRESS(MX27_CCM_BASE_ADDR));
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cscr &= 0xFFFFFFFC;
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__raw_writel(cscr, MX27_IO_ADDRESS(MX27_CCM_BASE_ADDR));
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/* Executes WFI */
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arch_idle();
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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static const struct platform_suspend_ops mx27_suspend_ops = {
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.enter = mx27_suspend_enter,
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.valid = suspend_valid_only_mem,
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};
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static int __init mx27_pm_init(void)
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{
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if (!cpu_is_mx27())
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return 0;
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suspend_set_ops(&mx27_suspend_ops);
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return 0;
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}
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device_initcall(mx27_pm_init);
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