ACPI / EC: Add HP Folio 13 to ec_dmi_table in order to skip DSDT scan

HP Folio 13's BIOS defines CMOS RTC Operation Region and the EC's
_REG method will access that region.  To allow the CMOS RTC region
handler to be installed before the EC _REG method is first invoked,
add ec_skip_dsdt_scan() as HP Folio 13's callback to ec_dmi_table.

References: https://bugzilla.kernel.org/show_bug.cgi?id=54621
Reported-and-tested-by: Stefan Nagy <public@stefan-nagy.at>
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Cc: 3.9+ <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index edc0081..80403c1 100644 (file)
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -983,6 +983,10 @@ static struct dmi_system_id __initdata ec_dmi_table[] = {
        ec_enlarge_storm_threshold, "CLEVO hardware", {
        DMI_MATCH(DMI_SYS_VENDOR, "CLEVO Co."),
        DMI_MATCH(DMI_PRODUCT_NAME, "M720T/M730T"),}, NULL},
+       {
+       ec_skip_dsdt_scan, "HP Folio 13", {
+       DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+       DMI_MATCH(DMI_PRODUCT_NAME, "HP Folio 13"),}, NULL},
        {},
 };