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| author | Daniel Drake <dsd@laptop.org> | 2012-04-18 23:34:02 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-05-07 15:02:26 +0200 |
| commit | c2c21e9bb17549e8add4ff76931bcec2e2d3ad48 (patch) | |
| tree | 136ce4652cbd99a57ce77fbe4d29a01f015c3838 /arch | |
| parent | d2aa37411b8e65d57d2c5ae36f0222274292020d (diff) | |
| download | linux-c2c21e9bb17549e8add4ff76931bcec2e2d3ad48.tar.gz linux-c2c21e9bb17549e8add4ff76931bcec2e2d3ad48.tar.bz2 linux-c2c21e9bb17549e8add4ff76931bcec2e2d3ad48.zip | |
x86/olpc/xo1/sci: Report RTC wakeup events
When the system is woken due to a RTC event, report the wakeup
event on the relevant rtc device (if it can be found).
Signed-off-by: Daniel Drake <dsd@laptop.org>
Cc: dilinger@queued.net
Cc: pgf@laptop.org
Link: http://lkml.kernel.org/r/20120418223402.D73249D401E@zog.reactivated.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/platform/olpc/olpc-xo1-sci.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/arch/x86/platform/olpc/olpc-xo1-sci.c b/arch/x86/platform/olpc/olpc-xo1-sci.c index 4b93ff46cec3..04b8c73659c5 100644 --- a/arch/x86/platform/olpc/olpc-xo1-sci.c +++ b/arch/x86/platform/olpc/olpc-xo1-sci.c @@ -236,6 +236,18 @@ static irqreturn_t xo1_sci_intr(int irq, void *dev_id) 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 */ cs5535_gpio_set(OLPC_GPIO_ECSCI, GPIO_NEGATIVE_EDGE_STS); schedule_work(&sci_work); @@ -326,9 +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) |