Sometimes, it is necessary to find out "what does wake up my board?".
Notifying wake-up source feature may be used to blame unexpected
wake-up events which increase power consumption. And user mode
applications can act smartly according to the wake-up event to
minimize power consumption. This driver uses sysfs interface to give
information to user mode applications like:
cat /sys/power/wakeup_irq
cat /sys/power/wakeup_event
This driver also privides the unified GPIO wake-up source
configuration. specific GPIO settings in the board files are:
/* Wakeup source configuration */
static struct gpio_wake boardname_gpio_wake[] = {
{ 23, IRQF_TRIGGER_RISING | IRQF_SHARED, "BT_WAKEUP", 1},
{ 24, IRQF_TRIGGER_RISING | IRQF_SHARED, "USB_DETECT", 1},
};
static struct omap_wake_platform_data boardname_wake_data = {
.qpio_wakes = boardname_gpio_wake,
.gpio_wake_num = ARRAY_SIZE(boardname_gpio_wake),
};
static struct platform_device boardname_wakeup = {
.name = "omap-wake",
.id = -1,
.dev = {
.platform_data = &boardname_wake_data,
},
};
Signed-off-by: Kim Kyuwon <q1.kim@xxxxxxxxxxx>
---
arch/arm/mach-omap2/Makefile | 1 +
arch/arm/mach-omap2/irq.c | 41 +++
arch/arm/mach-omap2/prcm-common.h | 4 +
arch/arm/mach-omap2/prm-regbits-34xx.h | 6 +
arch/arm/mach-omap2/wake34xx.c | 470 ++++++++++++++++++++++++++++++++
arch/arm/plat-omap/Kconfig | 9 +
arch/arm/plat-omap/include/mach/irqs.h | 1 +
arch/arm/plat-omap/include/mach/wake.h | 29 ++
8 files changed, 561 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/mach-omap2/wake34xx.c
create mode 100644 arch/arm/plat-omap/include/mach/wake.h
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index ba65cab..1ab87e7 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -25,6 +25,7 @@ obj-$(CONFIG_ARCH_OMAP2) += pm24xx.o
obj-$(CONFIG_ARCH_OMAP24XX) += sleep24xx.o
obj-$(CONFIG_ARCH_OMAP3) += pm34xx.o sleep34xx.o
obj-$(CONFIG_PM_DEBUG) += pm-debug.o
+obj-$(CONFIG_OMAP_WAKE) += wake34xx.o
endif
# SmartReflex driver
diff --git a/arch/arm/mach-omap2/irq.c b/arch/arm/mach-omap2/irq.c
index 2842fe8..21f3d83 100644
--- a/arch/arm/mach-omap2/irq.c
+++ b/arch/arm/mach-omap2/irq.c
@@ -177,6 +177,47 @@ int omap_irq_pending(void)
return 0;
}
+/*
+ * Get the first pending MPU IRQ number from 'irq_start'.
+ * If none, return -1.
+ */
+int omap_get_pending_mpu_irq(unsigned int irq_start)
+{
+ struct omap_irq_bank *bank = irq_banks;
+ int irq, bits_skip, bit_start;
+
+ if (irq_start >= bank->nr_irqs)
+ return -1;
+
+ bits_skip = irq_start % IRQ_BITS_PER_REG;
+ bit_start = irq_start - bits_skip;
+
+ for (irq = bit_start; irq < bank->nr_irqs; irq += IRQ_BITS_PER_REG) {
+ int ret, i, limit, offset = irq & (~(IRQ_BITS_PER_REG - 1));
+
+ ret = intc_bank_read_reg(bank, (INTC_PENDING_IRQ0 + offset));
+ if (!ret)
+ continue;
+
+ limit = IRQ_BITS_PER_REG;
+
+ if (bit_start == irq) {
+ ret >>= bits_skip;
+ limit -= bits_skip;
+ } else
+ bits_skip = 0;
+
+ for (i = 0; i < limit; i++) {
+ if (ret & 0x1)
+ return irq + i + bits_skip;
+ else
+ ret >>= 1;
+ }
+ }
+
+ return -1;
+}
+
void __init omap_init_irq(void)
{
unsigned long nr_of_irqs = 0;
diff --git a/arch/arm/mach-omap2/prcm-common.h
b/arch/arm/mach-omap2/prcm-common.h
index cb1ae84..1f340aa 100644
--- a/arch/arm/mach-omap2/prcm-common.h
+++ b/arch/arm/mach-omap2/prcm-common.h
@@ -273,6 +273,10 @@
#define OMAP3430_ST_D2D_SHIFT 3
#define OMAP3430_ST_D2D_MASK (1 << 3)
+/* PM_WKST3_CORE, CM_IDLEST3_CORE shared bits */
+#define OMAP3430_ST_USBTLL_SHIFT 2
+#define OMAP3430_ST_USBTLL_MASK (1 << 2)
+
/* CM_FCLKEN_WKUP, CM_ICLKEN_WKUP, PM_WKEN_WKUP shared bits */
#define OMAP3430_EN_GPIO1 (1 << 3)
#define OMAP3430_EN_GPIO1_SHIFT 3
diff --git a/arch/arm/mach-omap2/prm-regbits-34xx.h
b/arch/arm/mach-omap2/prm-regbits-34xx.h
index d73eee8..661d37d 100644
--- a/arch/arm/mach-omap2/prm-regbits-34xx.h
+++ b/arch/arm/mach-omap2/prm-regbits-34xx.h
@@ -332,6 +332,8 @@
/* PM_IVA2GRPSEL1_CORE specific bits */
/* PM_WKST1_CORE specific bits */
+#define OMAP3430_ST_MMC3_SHIFT 30
+#define OMAP3430_ST_MMC3_MASK (1 << 30)
/* PM_PWSTCTRL_CORE specific bits */
#define OMAP3430_MEM2ONSTATE_SHIFT 18
@@ -373,6 +375,7 @@
/* PM_IVA2GRPSEL_WKUP specific bits */
/* PM_WKST_WKUP specific bits */
+#define OMAP3430_ST_IO_CHAIN (1 << 16)
#define OMAP3430_ST_IO (1 << 8)
/* PRM_CLKSEL */
@@ -430,6 +433,9 @@
/* PM_PREPWSTST_PER specific bits */
+/* PM_WKST_USBHOST specific bits */
+#define OMAP3430_ST_USBHOST (1 << 0)
+
/* RM_RSTST_EMU specific bits */
/* PM_PWSTST_EMU specific bits */
diff --git a/arch/arm/mach-omap2/wake34xx.c b/arch/arm/mach-omap2/wake34xx.c
new file mode 100644
index 0000000..2390bca
--- /dev/null
+++ b/arch/arm/mach-omap2/wake34xx.c
@@ -0,0 +1,466 @@
+/*
+ * wake34xx.c
+ *
+ * Copyright (c) 2009 Samsung Eletronics
+ *
+ * Author: Kim Kyuwon <q1.kim@xxxxxxxxxxx>
+ *
+ * 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/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+
+#include <mach/gpio.h>
+#include <mach/wake.h>
+
+#include "prm-regbits-34xx.h"
+
+/*
+ * Sometimes, it is necessary to find out "what does wake up my board?"
+ * Notifying wake-up source feature may be used to blame unexpected wake-up
+ * events which increase power consumption. And user mode applications can
+ * act smartly according to the wake-up event to minimize power consumption.
+ * This driver uses sysfs interface to give information to user mode
+ * applications.
+ */
+
+#define WAKE_STR_LEN 64
+
+char wakeup_irq[WAKE_STR_LEN] = "None";
+char wakeup_event[WAKE_STR_LEN] = "None";
+
+struct wake_event {
+ int index;
+ const char *name;
+};
+
+static struct wake_event omap3_wkup_events[] = {
+ { OMAP3430_ST_IO_CHAIN, "ST_IO" },
+ { OMAP3430_ST_IO, "ST_SR2" },
+ { OMAP3430_ST_SR2_MASK, "ST_SR2" },
+ { OMAP3430_ST_SR1_MASK, "ST_SR1" },
+ { OMAP3430_ST_GPIO1_MASK, "ST_GPIO1" },
+ { OMAP3430_ST_GPT12_MASK, "ST_GPT12" },
+ { OMAP3430_ST_GPT1_MASK, "ST_GPT1" },
+};
+
+static struct wake_event omap3_per_events[] = {
+ { OMAP3430_ST_GPIO6_MASK, "ST_GPIO6" },
+ { OMAP3430_ST_GPIO5_MASK, "ST_GPIO5" },
+ { OMAP3430_ST_GPIO4_MASK, "ST_GPIO4" },
+ { OMAP3430_ST_GPIO3_MASK, "ST_GPIO3" },
+ { OMAP3430_ST_GPIO2_MASK, "ST_GPIO2" },
+ { OMAP3430_ST_UART3_MASK, "ST_UART3" },
+ { OMAP3430_ST_GPT9_MASK, "ST_GPT9" },
+ { OMAP3430_ST_GPT8_MASK, "ST_GPT8" },
+ { OMAP3430_ST_GPT7_MASK, "ST_GPT7" },
+ { OMAP3430_ST_GPT6_MASK, "ST_GPT6" },
+ { OMAP3430_ST_GPT5_MASK, "ST_GPT5" },
+ { OMAP3430_ST_GPT4_MASK, "ST_GPT4" },
+ { OMAP3430_ST_GPT3_MASK, "ST_GPT3" },
+ { OMAP3430_ST_GPT2_MASK, "ST_GPT2" },
+ { OMAP3430_EN_MCBSP4, "EN_MCBSP4" },
+ { OMAP3430_EN_MCBSP3, "EN_MCBSP3" },
+ { OMAP3430_EN_MCBSP2, "EN_MCBSP2" },
+};
+
+static struct wake_event omap3_core1_events[] = {
+ { OMAP3430_ST_MMC3_MASK, "ST_MMC3" },
+ { OMAP3430_ST_MMC2_MASK, "ST_MMC2" },
+ { OMAP3430_ST_MMC1_MASK, "ST_MMC1" },
+ { OMAP3430_ST_MCSPI4_MASK, "ST_MCSPI4" },
+ { OMAP3430_ST_MCSPI3_MASK, "ST_MCSPI3" },
+ { OMAP3430_ST_MCSPI2_MASK, "ST_MCSPI2" },
+ { OMAP3430_ST_MCSPI1_MASK, "ST_MCSPI1" },
+ { OMAP3430_ST_I2C3_MASK, "ST_I2C3" },
+ { OMAP3430_ST_I2C2_MASK, "ST_I2C2" },
+ { OMAP3430_ST_I2C1_MASK, "ST_I2C1" },
+ { OMAP3430_ST_UART1_MASK, "ST_UART1" },
+ { OMAP3430_ST_GPT11_MASK, "ST_GPT11" },
+ { OMAP3430_ST_GPT10_MASK, "ST_GPT10" },
+ { OMAP3430_ST_MCBSP5_MASK, "ST_MCBSP5" },
+ { OMAP3430_ST_MCBSP1_MASK, "ST_MCBSP1" },
+};
+
+static struct wake_event omap3es1_core1_events[] = {
+ { OMAP3430ES1_ST_FSHOSTUSB_MASK, "ST_FSHOSTUSB" },
+ { OMAP3430ES1_ST_HSOTGUSB_MASK, "ST_HSOTGUSB" },
+ { OMAP3430_ST_D2D_MASK, "ST_D2D" },
+};
+
+static struct wake_event omap3es2_core1_events[] = {
+ { OMAP3430ES2_ST_HSOTGUSB_STDBY_MASK, "ST_HSOTGUSB" },
+};
+
+static struct wake_event omap3_core2_events[] = {
+ { OMAP3430_ST_USBTLL_MASK, "ST_USBTLL" },
+};
+
+static struct wake_event omap3_usbhost_events[] = {
+ { OMAP3430_ST_USBHOST, "ST_USBHOST" },
+};
+
+static ssize_t wakeup_source_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buf);
+
+static void omap_wake_update_event(char *event)
+{
+ int len;
+
+ if (wakeup_event[0])
+ len = strlen(wakeup_event) + strlen(event) + 2;
+ else
+ len = strlen(wakeup_event) + strlen(event);
+
+ if (len > WAKE_STR_LEN - 1) {
+ printk(KERN_ERR "Can't record the wakeup event: %s\n", event);
+ return;
+ }
+
+ if (wakeup_event[0])
+ strcat(wakeup_event, ", ");
+ strcat(wakeup_event, event);
+}
+
+static void omap_wake_detect_wkup(u32 wkst, char *event)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(omap3_wkup_events); i++)
+ if (wkst & omap3_wkup_events[i].index) {
+ sprintf(event, "%s",
+ omap3_wkup_events[i].name);
+ return;
+ }
+
+ sprintf(event, "WKUP:0x%08x", wkst);
+}
+
+static void omap_wake_detect_per(u32 wkst, char *event)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(omap3_per_events); i++)
+ if (wkst & omap3_per_events[i].index) {
+ sprintf(event, "%s",
+ omap3_per_events[i].name);
+ return;
+ }
+
+ sprintf(event, "PER:0x%08x", wkst);
+}
+
+static void omap_wake_detect_core1(u32 wkst, char *event)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(omap3_core1_events); i++)
+ if (wkst & omap3_core1_events[i].index) {
+ sprintf(event, "%s",
+ omap3_core1_events[i].name);
+ return;
+ }
+
+ if (omap_rev() == OMAP3430_REV_ES1_0) {
+ for (i = 0; i < ARRAY_SIZE(omap3es1_core1_events); i++) {
+ if (wkst & omap3es1_core1_events[i].index) {
+ sprintf(event, "%s",
+ omap3es1_core1_events[i].name);
+ return;
+ }
+ }
+ } else {
+ for (i = 0; i < ARRAY_SIZE(omap3es2_core1_events); i++) {
+ if (wkst & omap3es2_core1_events[i].index) {
+ sprintf(event, "%s",
+ omap3es2_core1_events[i].name);
+ return;
+ }
+ }
+ }
+
+ sprintf(event, "CORE1:0x%08x", wkst);
+}
+
+static void omap_wake_detect_core2(u32 wkst, char *event)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(omap3_core2_events); i++)
+ if (wkst & omap3_core2_events[i].index) {
+ sprintf(event, "%s",
+ omap3_core2_events[i].name);
+ return;
+ }
+
+ sprintf(event, "CORE2:0x%08x", wkst);
+}
+
+static void omap_wake_detect_usbhost(u32 wkst, char *event)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(omap3_usbhost_events); i++)
+ if (wkst & omap3_usbhost_events[i].index) {
+ sprintf(event, "%s",
+ omap3_usbhost_events[i].name);
+ return;
+ }
+
+ sprintf(event, "USBHOST:0x%08x", wkst);
+}
+
+/* Detect wake-up events */
+static void omap_wake_detect_wakeup(void)
+{
+ u32 wkst;
+ char buf[32] = {0, };
+ int irq, len;
+
+ /* Initialize global string variables */
+ memset(wakeup_irq, 0x0, WAKE_STR_LEN);
+ memset(wakeup_event, 0x0, WAKE_STR_LEN);
+
+ /* IRQ */
+ irq = omap_get_pending_mpu_irq(0);
+ while (irq >= 0) {
+ if (irq == INT_34XX_SYS_NIRQ)
+ omap_wake_update_event("sys_nirq");
+
+ len = strlen(wakeup_irq) + sprintf(buf, "%d", irq);
+ if (len > WAKE_STR_LEN - 1)
+ break;
+
+ strcat(wakeup_irq, buf);
+
+ irq = omap_get_pending_mpu_irq(irq + 1);
+ if (irq >= 0) {
+ len = strlen(wakeup_irq) + 2;
+ if (len > WAKE_STR_LEN - 1)
+ break;
+
+ strcat(wakeup_irq, ", ");
+ }
+ }
+ if (!wakeup_irq[0])
+ strncpy(wakeup_irq, "Unknown", WAKE_STR_LEN - 1);
+ printk(KERN_INFO "Wake-up IRQ: %s\n", wakeup_irq);
+
+ /* WKUP */
+ wkst = prm_read_mod_reg(WKUP_MOD, PM_WKST);
+ if (wkst) {
+ omap_wake_detect_wkup(wkst, buf);
+ omap_wake_update_event(buf);
+ }
+
+ /* PER */
+ wkst = prm_read_mod_reg(OMAP3430_PER_MOD, PM_WKST);
+ if (wkst) {
+ omap_wake_detect_per(wkst, buf);
+ omap_wake_update_event(buf);
+ }
+
+ /* CORE */
+ wkst = prm_read_mod_reg(CORE_MOD, PM_WKST1);
+ if (wkst) {
+ omap_wake_detect_core1(wkst, buf);
+ omap_wake_update_event(buf);
+ }
+ wkst = prm_read_mod_reg(CORE_MOD, OMAP3430ES2_PM_WKST3);
+ if (wkst) {
+ omap_wake_detect_core2(wkst, buf);
+ omap_wake_update_event(buf);
+ }
+
+ /* USBHOST */
+ wkst = prm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, PM_WKST);
+ if (wkst) {
+ omap_wake_detect_usbhost(wkst, buf);
+ omap_wake_update_event(buf);
+ }
+
+ if (!wakeup_event[0])
+ strncpy(wakeup_event, "Unknown", WAKE_STR_LEN - 1);
+}
+
+static struct kobj_attribute wakeup_irq_attr =
+ __ATTR(wakeup_irq, 0644, wakeup_source_show, NULL);
+
+static struct kobj_attribute wakeup_event_attr =
+ __ATTR(wakeup_event, 0644, wakeup_source_show, NULL);
+
+static ssize_t wakeup_source_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buf)
+{
+ if (attr == &wakeup_irq_attr)
+ return sprintf(buf, "%s\n", wakeup_irq);
+ else if (attr == &wakeup_event_attr)
+ return sprintf(buf, "%s\n", wakeup_event);
+ else
+ return -EINVAL;
+}
+
+static irqreturn_t omap_wake_detect_gpio(int irq, void *dev_id)
+{
+ if (!strncmp(wakeup_event, "Unknown", WAKE_STR_LEN - 1))
+ strncpy(wakeup_event, dev_id, WAKE_STR_LEN - 1);
+ else
+ omap_wake_update_event(dev_id);
+
+ return IRQ_HANDLED;
+}
+
+static int __devinit omap_wake_probe(struct platform_device *pdev)
+{
+ struct omap_wake_platform_data *pdata = pdev->dev.platform_data;
+ struct gpio_wake *gw;
+ int i, ret;
+
+ /*
+ * It may be good to configure GPIO wake-up sources in each driver.
+ * Buf if the specific device driver doesn't exist, you can use
+ * omap-wake driver to configure gpio wake-up sources.
+ */
+ for (i = 0; i < pdata->gpio_wake_num; i++) {
+ gw = pdata->qpio_wakes + i;
+
+ if (gw->request) {
+ ret = gpio_request(gw->gpio, gw->name);
+ if (ret) {
+ dev_err(&pdev->dev, "can't request gpio%d"
+ ", return %d\n", gw->gpio, ret);
+ goto failed_free_gpio;
+ }
+ }
+ gpio_direction_input(gw->gpio);
+ enable_irq_wake(gpio_to_irq(gw->gpio));
+ }
+
+ ret = sysfs_create_file(power_kobj, &wakeup_irq_attr.attr);
+ if (ret)
+ dev_err(&pdev->dev, "sysfs_create_file %s failed: %d\n",
+ wakeup_irq_attr.attr.name, ret);
+
+ ret = sysfs_create_file(power_kobj, &wakeup_event_attr.attr);
+ if (ret)
+ dev_err(&pdev->dev, "sysfs_create_file %s failed: %d\n",
+ wakeup_event_attr.attr.name, ret);
+
+ return 0;
+
+failed_free_gpio:
+ for (i--; i >= 0; i--) {
+ gw = pdata->qpio_wakes + i;
+
+ if (gw->request)
+ gpio_free(gw->gpio);
+ }
+
+ return ret;
+}
+
+static int __devexit omap_wake_remove(struct platform_device *pdev)
+{
+ struct omap_wake_platform_data *pdata = pdev->dev.platform_data;
+ struct gpio_wake *gw;
+ int i;
+
+ for (i = 0; i < pdata->gpio_wake_num; i++) {
+ gw = pdata->qpio_wakes + i;
+
+ if (gw->request)
+ gpio_free(gw->gpio);
+
+ disable_irq_wake(gpio_to_irq(gw->gpio));
+ }
+
+ return 0;
+}
+
+static int omap_wake_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ struct omap_wake_platform_data *pdata = pdev->dev.platform_data;
+ struct gpio_wake *gw;
+ int i, ret;
+
+ for (i = 0; i < pdata->gpio_wake_num; i++) {
+ gw = pdata->qpio_wakes + i;
+
+ ret = request_irq(gpio_to_irq(gw->gpio), omap_wake_detect_gpio,
+ gw->irqflag, gw->name, (void *)gw->name);
+ if (ret) {
+ dev_err(&pdev->dev, "can't get IRQ%d, return %d\n",
+ gpio_to_irq(gw->gpio), ret);
+ goto failed_free_irq;
+ }
+ }
+
+ return 0;
+
+failed_free_irq:
+ for (i--; i >= 0; i--) {
+ gw = pdata->qpio_wakes + i;
+ free_irq(gpio_to_irq(gw->gpio), (void *)gw->name);
+ }
+
+ return ret;
+}
+
+static int omap_wake_resume_early(struct platform_device *pdev)
+{
+ omap_wake_detect_wakeup();
+
+ return 0;
+}
+
+static int omap_wake_resume(struct platform_device *pdev)
+{
+ struct omap_wake_platform_data *pdata = pdev->dev.platform_data;
+ struct gpio_wake *gw;
+ int i;
+
+ for (i = 0; i < pdata->gpio_wake_num; i++) {
+ gw = pdata->qpio_wakes + i;
+
+ free_irq(gpio_to_irq(gw->gpio), (void *)gw->name);
+ }
+
+ printk(KERN_INFO "Wake-up event: %s\n", wakeup_event);
+
+ return 0;
+}
+
+static struct platform_driver omap_wake_driver = {
+ .probe = omap_wake_probe,
+ .remove = __devexit_p(omap_wake_remove),
+ .suspend = omap_wake_suspend,
+ .resume_early = omap_wake_resume_early,
+ .resume = omap_wake_resume,
+ .driver = {
+ .name = "omap-wake",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init omap_wake_init(void)
+{
+ return platform_driver_register(&omap_wake_driver);
+}
+
+module_init(omap_wake_init);
+
+static void __exit omap_wake_exit(void)
+{
+ platform_driver_unregister(&omap_wake_driver);
+}
+module_exit(omap_wake_exit);
+
+MODULE_AUTHOR("Kim Kyuwon <q1.kim@xxxxxxxxxxx>");
+MODULE_DESCRIPTION("OMAP34xx wakeup driver");
+MODULE_LICENSE("GPL v2");
diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig
index 407bd32..7a73c95 100644
--- a/arch/arm/plat-omap/Kconfig
+++ b/arch/arm/plat-omap/Kconfig
@@ -176,6 +176,15 @@ config OMAP_MBOX_FWK
Say Y here if you want to use OMAP Mailbox framework support for
DSP, IVA1.0 and IVA2 in OMAP1/2/3.
+config OMAP_WAKE
+ tristate "OMAP34xx wakeup source support"
+ depends on ARCH_OMAP34XX && PM
+ default n
+ help
+ Select this option if you want to know what kind of wake-up event
+ wakes up your board from the low power mode. And this option
+ provides the unified GPIO wake-up source configuration.
+
choice
prompt "System timer"
default OMAP_MPU_TIMER
diff --git a/arch/arm/plat-omap/include/mach/irqs.h
b/arch/arm/plat-omap/include/mach/irqs.h
index d12c39f..656cc04 100644
--- a/arch/arm/plat-omap/include/mach/irqs.h
+++ b/arch/arm/plat-omap/include/mach/irqs.h
@@ -385,6 +385,7 @@
#ifndef __ASSEMBLY__
extern void omap_init_irq(void);
extern int omap_irq_pending(void);
+extern int omap_get_pending_mpu_irq(unsigned int irq_start);
#endif
#include <mach/hardware.h>
diff --git a/arch/arm/plat-omap/include/mach/wake.h
b/arch/arm/plat-omap/include/mach/wake.h
new file mode 100644
index 0000000..213b263
--- /dev/null
+++ b/arch/arm/plat-omap/include/mach/wake.h
@@ -0,0 +1,30 @@
+/*
+ * wake.h
+ *
+ * Copyright (c) 2009 Samsung Eletronics
+ *
+ * Author: Kim Kyuwon <q1.kim@xxxxxxxxxxx>
+ *
+ * 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.
+ *
+ */
+
+#ifndef _WAKE_H_
+#define _WAKE_H_
+
+struct gpio_wake {
+ unsigned int gpio;
+ unsigned long irqflag;
+ const char *name;
+ int request;
+};
+
+struct omap_wake_platform_data{
+ struct gpio_wake *qpio_wakes;
+ int gpio_wake_num;
+};
+
+#endif /* _WAKE_H_ */
+
--
1.5.2.5
--
Q1
--
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