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authorLinus Torvalds <torvalds@linux-foundation.org>2010-10-30 08:26:25 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-30 08:26:25 -0700
commit706d4b12f8d7edd28d7e879a77235472da393edb (patch)
treec9bc1ce06b1154a49da1d0d907cac544a818eb0e /arch/arm/plat-s5p/irq-pm.c
parent3af54c9bd9e6f14f896aac1bb0e8405ae0bc7a44 (diff)
parent9bafc74163d8bccca9810159aab39be926fb877c (diff)
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (215 commits) ARM: memblock: setup lowmem mappings using memblock ARM: memblock: move meminfo into find_limits directly ARM: memblock: convert free_highpages() to use memblock ARM: move freeing of highmem pages out of mem_init() ARM: memblock: convert memory detail printing to use memblock ARM: memblock: use memblock to free memory into arm_bootmem_init() ARM: memblock: use memblock when initializing memory allocators ARM: ensure membank array is always sorted ARM: 6466/1: implement flush_icache_all for the rest of the CPUs ARM: 6464/2: fix spinlock recursion in adjust_pte() ARM: fix memblock breakage ARM: 6465/1: Fix data abort accessing proc_info from __lookup_processor_type ARM: 6460/1: ixp2000: fix type of ixp2000_timer_interrupt ARM: 6449/1: Fix for compiler warning of uninitialized variable. ARM: 6445/1: fixup TCM memory types ARM: imx: Add wake functionality to GPIO ARM: mx5: Add gpio-keys to mx51 babbage board ARM: imx: Add gpio-keys to plat-mxc mx31_3ds: Fix spi registration mx31_3ds: Fix the logic for detecting the debug board ...
Diffstat (limited to 'arch/arm/plat-s5p/irq-pm.c')
-rw-r--r--arch/arm/plat-s5p/irq-pm.c93
1 files changed, 93 insertions, 0 deletions
diff --git a/arch/arm/plat-s5p/irq-pm.c b/arch/arm/plat-s5p/irq-pm.c
new file mode 100644
index 00000000000..dc33b9ecda4
--- /dev/null
+++ b/arch/arm/plat-s5p/irq-pm.c
@@ -0,0 +1,93 @@
+/* linux/arch/arm/plat-s5p/irq-pm.c
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ *
+ * Based on arch/arm/plat-s3c24xx/irq-pm.c,
+ * Copyright (c) 2003,2004 Simtec Electronics
+ * Ben Dooks <ben@simtec.co.uk>
+ * http://armlinux.simtec.co.uk/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/sysdev.h>
+
+#include <plat/cpu.h>
+#include <plat/irqs.h>
+#include <plat/pm.h>
+#include <mach/map.h>
+
+#include <mach/regs-gpio.h>
+#include <mach/regs-irq.h>
+
+/* state for IRQs over sleep */
+
+/* default is to allow for EINT0..EINT31, and IRQ_RTC_TIC, IRQ_RTC_ALARM,
+ * as wakeup sources
+ *
+ * set bit to 1 in allow bitfield to enable the wakeup settings on it
+*/
+
+unsigned long s3c_irqwake_intallow = 0x00000006L;
+unsigned long s3c_irqwake_eintallow = 0xffffffffL;
+
+int s3c_irq_wake(unsigned int irqno, unsigned int state)
+{
+ unsigned long irqbit;
+
+ switch (irqno) {
+ case IRQ_RTC_TIC:
+ case IRQ_RTC_ALARM:
+ irqbit = 1 << (irqno + 1 - IRQ_RTC_ALARM);
+ if (!state)
+ s3c_irqwake_intmask |= irqbit;
+ else
+ s3c_irqwake_intmask &= ~irqbit;
+ break;
+ default:
+ return -ENOENT;
+ }
+ return 0;
+}
+
+static struct sleep_save eint_save[] = {
+ SAVE_ITEM(S5P_EINT_CON(0)),
+ SAVE_ITEM(S5P_EINT_CON(1)),
+ SAVE_ITEM(S5P_EINT_CON(2)),
+ SAVE_ITEM(S5P_EINT_CON(3)),
+
+ SAVE_ITEM(S5P_EINT_FLTCON(0)),
+ SAVE_ITEM(S5P_EINT_FLTCON(1)),
+ SAVE_ITEM(S5P_EINT_FLTCON(2)),
+ SAVE_ITEM(S5P_EINT_FLTCON(3)),
+ SAVE_ITEM(S5P_EINT_FLTCON(4)),
+ SAVE_ITEM(S5P_EINT_FLTCON(5)),
+ SAVE_ITEM(S5P_EINT_FLTCON(6)),
+ SAVE_ITEM(S5P_EINT_FLTCON(7)),
+
+ SAVE_ITEM(S5P_EINT_MASK(0)),
+ SAVE_ITEM(S5P_EINT_MASK(1)),
+ SAVE_ITEM(S5P_EINT_MASK(2)),
+ SAVE_ITEM(S5P_EINT_MASK(3)),
+};
+
+int s3c24xx_irq_suspend(struct sys_device *dev, pm_message_t state)
+{
+ s3c_pm_do_save(eint_save, ARRAY_SIZE(eint_save));
+
+ return 0;
+}
+
+int s3c24xx_irq_resume(struct sys_device *dev)
+{
+ s3c_pm_do_restore(eint_save, ARRAY_SIZE(eint_save));
+
+ return 0;
+}
+