ACPI / EC: Add ASUSTEK L4R to quirk list in order to validate ECDT

The ECDT of ASUSTEK L4R doesn't provide correct command and data
I/O ports.  The DSDT provides the correct information instead.

For this reason, add this machine to quirk list for ECDT validation
and use the EC information from the DSDT.

[rjw: Changelog]
References: https://bugzilla.kernel.org/show_bug.cgi?id=60765
Reported-and-tested-by: Daniele Esposti <expo@expobrain.net>
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Cc: All <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 34448038724b..81b1331554f3 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -987,6 +987,10 @@ static struct dmi_system_id ec_dmi_table[] __initdata = {
         ec_skip_dsdt_scan, "HP Folio 13", {
         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
         DMI_MATCH(DMI_PRODUCT_NAME, "HP Folio 13"),}, NULL},
+        {
+        ec_validate_ecdt, "ASUS hardware", {
+        DMI_MATCH(DMI_SYS_VENDOR, "ASUSTek Computer Inc."),
+        DMI_MATCH(DMI_PRODUCT_NAME, "L4R"),}, NULL},
         {},
 };