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D33857.id101340.diff
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Index: sys/dev/acpica/acpi.c
===================================================================
--- sys/dev/acpica/acpi.c
+++ sys/dev/acpica/acpi.c
@@ -2260,6 +2260,15 @@
/* Never disable PCI link devices. */
if (acpi_MatchHid(handle, "PNP0C0F"))
break;
+
+ /*
+ * RTC Device should be enabled for CMOS register space
+ * unless FADT indicate it is not present.
+ * (checked in RTC probe routine.)
+ */
+ if (acpi_MatchHid(handle, "PNP0B00"))
+ break;
+
/*
* Docking stations should remain enabled since the system
* may be undocked at boot.
Index: sys/x86/isa/atrtc.c
===================================================================
--- sys/x86/isa/atrtc.c
+++ sys/x86/isa/atrtc.c
@@ -370,7 +370,10 @@
if (acpi_disabled("atrtc"))
return (ENXIO);
- sc->acpi_handle = acpi_get_handle(dev);
+ if(ACPI_FAILURE(AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SB_", &sc->acpi_handle))){
+ return (ENXIO);
+ }
+
if (sc->acpi_handle == NULL ||
ACPI_FAILURE(AcpiInstallAddressSpaceHandler(sc->acpi_handle,
ACPI_ADR_SPACE_CMOS, atrtc_acpi_cmos_handler, NULL, dev))) {
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D33857.id101340.diff (1 KB)
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D33857: acpi atrtc: Fix cmos address space handler.
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