On Mon, 2008-12-15 at 11:51 +0800, Lin Ming wrote: > http://bugzilla.kernel.org/show_bug.cgi?id=11884 > > Method(\_SB._INI) > { > //initialize package CUZO > } > > Method(\_SB_.PCI0.LPCB.EC0_._REG) > { > //access package CUZO > } > > For this machine, \_SB._INI must be run before \_SB_.PCI0.LPCB.EC0_._REG > > But currently early EC _REG method is run before _INI as below acpi_bus_init shows. > > void __init acpi_bus_init(void) > ..... > status = acpi_ec_ecdt_probe(); > /* Ignore result. Not having an ECDT is not fatal. */ > > status = acpi_initialize_objects(ACPI_FULL_INITIALIZATION); > ..... > } > > acpi_ec_ecdt_probe will install ec handler although no ECDT found in this machine. > > Alexey, > How about that if there's no ECDT found, we do not install ec handler before acpi_initialize_objects? I do some test with the help of KVM. In my test the ECDT table is defined. And there also exists the EC device in DSDT table.Of course there exists the _INI/_REG object under the scope of EC device. Under the scope of \_SB.PCI0 there exists the _INI/_REG object. >From the test result it seems that all the _INI objects are evaluated before _REG object even when there exists the ECDT table. Hi, Alexey Can the Lin Ming's proposal be considered based on the above test? Thanks. > > Lin Ming > > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-acpi" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
