summaryrefslogtreecommitdiffstats
path: root/arch/x86/platform
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2012-05-23 11:16:40 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-23 11:16:40 -0700
commit44bc40e1489622234169786b0ad5a1f4a01e1090 (patch)
treecd247a6f130b8993e92ac62f76ced2b023491d09 /arch/x86/platform
parent02171b4a7c5b555d08c3321332e0c45776518276 (diff)
parentead91d4b8c3b1fb08a73aaa4a191230ecf717ee0 (diff)
Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 platform changes from Ingo Molnar: "This tree includes assorted platform driver updates and a preparatory series for a platform with custom DMA remapping semantics (sta2x11 I/O hub)." * 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/vsmp: Fix number of CPUs when vsmp is disabled keyboard: Use BIOS Keyboard variable to set Numlock x86/olpc/xo1/sci: Report RTC wakeup events x86/olpc/xo1/sci: Produce wakeup events for buttons and switches x86, platform: Initial support for sta2x11 I/O hub x86: Introduce CONFIG_X86_DMA_REMAP x86-32: Introduce CONFIG_X86_DEV_DMA_OPS
Diffstat (limited to 'arch/x86/platform')
-rw-r--r--arch/x86/platform/olpc/olpc-xo1-sci.c43
1 files changed, 36 insertions, 7 deletions
diff --git a/arch/x86/platform/olpc/olpc-xo1-sci.c b/arch/x86/platform/olpc/olpc-xo1-sci.c
index 1d4c783d732..04b8c73659c 100644
--- a/arch/x86/platform/olpc/olpc-xo1-sci.c
+++ b/arch/x86/platform/olpc/olpc-xo1-sci.c
@@ -18,6 +18,7 @@
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/pm.h>
+#include <linux/pm_wakeup.h>
#include <linux/mfd/core.h>
#include <linux/power_supply.h>
#include <linux/suspend.h>
@@ -83,8 +84,12 @@ static void send_ebook_state(void)
return;
}
+ if (!!test_bit(SW_TABLET_MODE, ebook_switch_idev->sw) == state)
+ return; /* Nothing new to report. */
+
input_report_switch(ebook_switch_idev, SW_TABLET_MODE, state);
input_sync(ebook_switch_idev);
+ pm_wakeup_event(&ebook_switch_idev->dev, 0);
}
static void flip_lid_inverter(void)
@@ -123,8 +128,12 @@ static void detect_lid_state(void)
/* Report current lid switch state through input layer */
static void send_lid_state(void)
{
+ if (!!test_bit(SW_LID, lid_switch_idev->sw) == !lid_open)
+ return; /* Nothing new to report. */
+
input_report_switch(lid_switch_idev, SW_LID, !lid_open);
input_sync(lid_switch_idev);
+ pm_wakeup_event(&lid_switch_idev->dev, 0);
}
static ssize_t lid_wake_mode_show(struct device *dev,
@@ -213,11 +222,30 @@ static irqreturn_t xo1_sci_intr(int irq, void *dev_id)
dev_dbg(&pdev->dev, "sts %x gpe %x\n", sts, gpe);
- if (sts & CS5536_PWRBTN_FLAG && !(sts & CS5536_WAK_FLAG)) {
- input_report_key(power_button_idev, KEY_POWER, 1);
- input_sync(power_button_idev);
- input_report_key(power_button_idev, KEY_POWER, 0);
- input_sync(power_button_idev);
+ if (sts & CS5536_PWRBTN_FLAG) {
+ if (!(sts & CS5536_WAK_FLAG)) {
+ /* Only report power button input when it was pressed
+ * during regular operation (as opposed to when it
+ * was used to wake the system). */
+ input_report_key(power_button_idev, KEY_POWER, 1);
+ input_sync(power_button_idev);
+ input_report_key(power_button_idev, KEY_POWER, 0);
+ input_sync(power_button_idev);
+ }
+ /* Report the wakeup event in all cases. */
+ pm_wakeup_event(&power_button_idev->dev, 0);
+ }
+
+ if ((sts & (CS5536_RTC_FLAG | CS5536_WAK_FLAG)) ==
+ (CS5536_RTC_FLAG | CS5536_WAK_FLAG)) {
+ /* When the system is woken by the RTC alarm, report the
+ * event on the rtc device. */
+ struct device *rtc = bus_find_device_by_name(
+ &platform_bus_type, NULL, "rtc_cmos");
+ if (rtc) {
+ pm_wakeup_event(rtc, 0);
+ put_device(rtc);
+ }
}
if (gpe & CS5536_GPIOM7_PME_FLAG) { /* EC GPIO */
@@ -310,9 +338,10 @@ static int __devinit setup_sci_interrupt(struct platform_device *pdev)
outb(lo, CS5536_PIC_INT_SEL2);
}
- /* Enable SCI from power button, and clear pending interrupts */
+ /* Enable interesting SCI events, and clear pending interrupts */
sts = inl(acpi_base + CS5536_PM1_STS);
- outl((CS5536_PM_PWRBTN << 16) | 0xffff, acpi_base + CS5536_PM1_STS);
+ outl(((CS5536_PM_PWRBTN | CS5536_PM_RTC) << 16) | 0xffff,
+ acpi_base + CS5536_PM1_STS);
r = request_irq(sci_irq, xo1_sci_intr, 0, DRV_NAME, pdev);
if (r)