From 2fa97feb4406c546b52e35b6b6c50cb8f63425d2 Mon Sep 17 00:00:00 2001 From: Lan Tianyu Date: Wed, 5 Jun 2013 02:27:50 +0000 Subject: ACPI: Add CMOS RTC Operation Region handler support On HP Folio 13-2000, the BIOS defines a CMOS RTC Operation Region and the EC's _REG methord accesses that region. Thus an appropriate address space handler must be registered for that region before the EC driver is loaded. Introduce a mechanism for adding CMOS RTC address space handlers. Register an ACPI scan handler for CMOS RTC devices such that, when a device of that kind is detected during an ACPI namespace scan, a common CMOS RTC operation region address space handler will be installed for it. References: https://bugzilla.kernel.org/show_bug.cgi?id=54621 Reported-and-tested-by: Stefan Nagy Signed-off-by: Lan Tianyu Cc: 3.9+ Signed-off-by: Rafael J. Wysocki --- drivers/acpi/scan.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/acpi/scan.c') diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index b14ac46948c9..a514be216440 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -2040,6 +2040,7 @@ int __init acpi_scan_init(void) acpi_pci_link_init(); acpi_platform_init(); acpi_lpss_init(); + acpi_cmos_rtc_init(); acpi_container_init(); acpi_memory_hotplug_init(); -- cgit v1.2.3