bb072c3cf2
Replace sysdev classes and struct sys_device objects used for "core" power management by Samsung platforms with struct syscore_ops objects that are simpler. This generally reduces the code size and the kernel memory footprint. It also is necessary for removing sysdevs entirely from the kernel in the future. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Acked-by: Kukjin Kim <kgene.kim@samsung.com>
91 lines
2 KiB
C
91 lines
2 KiB
C
/* linux/arch/arm/plat-s5p/irq-pm.c
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*
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* Copyright (c) 2010 Samsung Electronics Co., Ltd.
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* http://www.samsung.com
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*
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* Based on arch/arm/plat-s3c24xx/irq-pm.c,
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* Copyright (c) 2003,2004 Simtec Electronics
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* Ben Dooks <ben@simtec.co.uk>
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* http://armlinux.simtec.co.uk/
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/interrupt.h>
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#include <plat/cpu.h>
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#include <plat/irqs.h>
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#include <plat/pm.h>
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#include <mach/map.h>
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#include <mach/regs-gpio.h>
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#include <mach/regs-irq.h>
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/* state for IRQs over sleep */
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/* default is to allow for EINT0..EINT31, and IRQ_RTC_TIC, IRQ_RTC_ALARM,
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* as wakeup sources
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*
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* set bit to 1 in allow bitfield to enable the wakeup settings on it
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*/
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unsigned long s3c_irqwake_intallow = 0x00000006L;
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unsigned long s3c_irqwake_eintallow = 0xffffffffL;
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int s3c_irq_wake(struct irq_data *data, unsigned int state)
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{
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unsigned long irqbit;
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switch (data->irq) {
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case IRQ_RTC_TIC:
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case IRQ_RTC_ALARM:
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irqbit = 1 << (data->irq + 1 - IRQ_RTC_ALARM);
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if (!state)
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s3c_irqwake_intmask |= irqbit;
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else
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s3c_irqwake_intmask &= ~irqbit;
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break;
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default:
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return -ENOENT;
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}
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return 0;
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}
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static struct sleep_save eint_save[] = {
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SAVE_ITEM(S5P_EINT_CON(0)),
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SAVE_ITEM(S5P_EINT_CON(1)),
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SAVE_ITEM(S5P_EINT_CON(2)),
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SAVE_ITEM(S5P_EINT_CON(3)),
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SAVE_ITEM(S5P_EINT_FLTCON(0)),
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SAVE_ITEM(S5P_EINT_FLTCON(1)),
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SAVE_ITEM(S5P_EINT_FLTCON(2)),
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SAVE_ITEM(S5P_EINT_FLTCON(3)),
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SAVE_ITEM(S5P_EINT_FLTCON(4)),
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SAVE_ITEM(S5P_EINT_FLTCON(5)),
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SAVE_ITEM(S5P_EINT_FLTCON(6)),
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SAVE_ITEM(S5P_EINT_FLTCON(7)),
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SAVE_ITEM(S5P_EINT_MASK(0)),
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SAVE_ITEM(S5P_EINT_MASK(1)),
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SAVE_ITEM(S5P_EINT_MASK(2)),
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SAVE_ITEM(S5P_EINT_MASK(3)),
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};
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int s3c24xx_irq_suspend(void)
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{
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s3c_pm_do_save(eint_save, ARRAY_SIZE(eint_save));
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return 0;
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}
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void s3c24xx_irq_resume(void)
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{
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s3c_pm_do_restore(eint_save, ARRAY_SIZE(eint_save));
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}
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