arm/mach-s5pv210/pm.c

1 // SPDX-License-Identifier: GPL-2.0
3 // Copyright (c) 2010-2014 Samsung Electronics Co., Ltd.
6 // S5PV210 - Power Management support
8 // Based on arch/arm/mach-s3c2410/pm.c
16 #include <linux/soc/samsung/s3c-pm.h>
22 #include "regs-clock.h"
34  * s3c_pm_do_save() - save a set of registers for restoration on resume.
39  * array for later restoration when we wakeup.
43 	for (; count > 0; count--, ptr++) {  in s3c_pm_do_save()
44 		ptr->val = readl_relaxed(ptr->reg);  in s3c_pm_do_save()
45 		S3C_PMDBG("saved %p value %08lx\n", ptr->reg, ptr->val);  in s3c_pm_do_save()
50  * s3c_pm_do_restore_core() - restore register values from the save list.
62 	for (; count > 0; count--, ptr++)  in s3c_pm_do_restore_core()
63 		writel_relaxed(ptr->val, ptr->reg);  in s3c_pm_do_restore_core()
72  * VIC wake-up support (TODO)
89 	 * issue a write-buffer drain just in case */  in s5pv210_cpu_suspend()
109 	 * Set wake-up mask registers  in s5pv210_pm_prepare()
145 	S3C_PMDBG("%s: wakeup masks: %08x,%08x\n", __func__,  in s5pv210_suspend_enter()
148 	if (s5pv210_irqwake_intmask == -1U  in s5pv210_suspend_enter()
149 	    && eint_wakeup_mask == -1U) {  in s5pv210_suspend_enter()
150 		pr_err("%s: No wake-up sources!\n", __func__);  in s5pv210_suspend_enter()
152 		return -EINVAL;  in s5pv210_suspend_enter()
166 	S3C_PMDBG("%s: wakeup stat: %08x\n", __func__,  in s5pv210_suspend_enter()
192 	.valid		= suspend_valid_only_mem,