Hi Kevin,
Could you please review this fourth version of OMAP wakeup source driver?
Regards,
Kyuwon.
On Tue, May 5, 2009 at 6:13 PM, Kim Kyuwon q1@samsung.com wrote:
Sometimes, it is necessary to find out what does wake up my board from
suspend?. 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 from Suspend-to-RAM state to
minimize power consumption. Note that this driver can't inform wake-up events
from idle state. This driver uses sysfs interface to give information to user
mode applications like:
cat /sys/power/omap_resume_irq
cat /sys/power/omap_resume_event
This driver also provides the I/O pad wake-up source configuration. Specific
GPIO settings in the board file are:
/* I/O pad wakeup source configuration */
static struct iopad_wake boardname_iopad_wake[] = {
{
.mux_index = AE7_34XX_GPIO24,
.alias = KEY_PWRON,
},
{
.mux_index = ETK_D9_GPIO23,
.alias = USB_DETECT,
},
};
static struct omap_wake_platform_data boardname_wake_data = {
.iopad_wakes= boardname_iopad_wake,
.iopad_wake_num = ARRAY_SIZE(boardname_iopad_wake),
};
static struct platform_device boardname_wakeup = {
.name = omap-wake,
.id = -1,
.dev= {
.platform_data = boardname_wake_data,
},
};
The patch adds Kconfig options OMAP34xx wakeup source support under System
type-TI OMAP implementations menu.
Signed-off-by: Kim Kyuwon q1@samsung.com
---
arch/arm/mach-omap2/Makefile |1 +
arch/arm/mach-omap2/irq.c | 21 ++-
arch/arm/mach-omap2/omapdev-common.h |3 +
arch/arm/mach-omap2/omapdev3xxx.h | 63 +
arch/arm/mach-omap2/pm34xx.c | 13 +
arch/arm/mach-omap2/prcm-common.h |4 +
arch/arm/mach-omap2/prm-regbits-34xx.h|5 +
arch/arm/mach-omap2/wake34xx.c| 409
+
arch/arm/plat-omap/Kconfig|9 +
arch/arm/plat-omap/include/mach/irqs.h|4 +
arch/arm/plat-omap/include/mach/mux.h |3 +
arch/arm/plat-omap/include/mach/omapdev.h |3 +
arch/arm/plat-omap/include/mach/wake.h| 52
arch/arm/plat-omap/mux.c | 25 ++-
14 files changed, 605 insertions(+), 10 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 c58bab4..cfc5a13 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-$(CONFIG_ARCH_OMAP3) += pm34xx.o sleep34xx.o cpuidle34xx.o
obj-$(CONFIG_PM_DEBUG) += pm-debug.o
+obj-$(CONFIG_OMAP3_WAKE) += wake34xx.o
endif
# SmartReflex driver
diff --git a/arch/arm/mach-omap2/irq.c b/arch/arm/mach-omap2/irq.c
index 700fc3d..18ac725 100644
--- a/arch/arm/mach-omap2/irq.c
+++ b/arch/arm/mach-omap2/irq.c
@@ -33,9 +33,6 @@
#define INTC_MIR_SET0 0x008c
#define INTC_PENDING_IRQ0 0x0098
-/* Number of IRQ state bits in each MIR register */
-#define IRQ_BITS_PER_REG 32
-
/*
* OMAP2 has a number of different interrupt controllers, each interrupt
* controller is identified as its own bank. Register definitions are
@@ -193,6 +190,24 @@ int omap_irq_pending(void)
return 0;
}
+void omap_get_pending_irqs(u32 *pending_irqs, unsigned len)
+{
+ int i, j = 0;
+
+ for (i = 0; i ARRAY_SIZE(irq_banks); i++) {
+ struct omap_irq_bank *bank = irq_banks + i;
+ int irq;
+
+ for (irq = 0; irq bank-nr_irqs j len;
+ irq += IRQ_BITS_PER_REG) {
+ int offset = irq (~(IRQ_BITS_PER_REG - 1));
+
+ pending_irqs[j++] = intc_bank_read_reg(bank,
+ (INTC_PENDING_IRQ0 + offset));
+ }
+ }
+}
+
void __init omap_init_irq(void)
{
unsigned long nr_of_irqs = 0;
diff --git a/arch/arm/mach-omap2/omapdev-common.h
b/arch/arm/mach-omap2/omapdev-common.h
index a2d4855..57b9b0b 100644
--- a/arch/arm/mach-omap2/omapdev-common.h
+++ b/arch/arm/mach-omap2/omapdev-common.h
@@ -228,10 +228,13 @@ static struct omapdev *omapdevs[] = {
hsmmc2_3xxx_omapdev,
mcspi3_3xxx_omapdev,
gptimer1_3xxx_omapdev,
+ gptimer12_3xxx_omapdev,
prm_3xxx_omapdev,
cm_3xxx_omapdev,
