linux-kernel - [PATCH] ACPI: resource: Skip IRQ override on ASUS ExpertBook B1502CBA

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Message-Id: <20230411183144.6932-1-pmenzel@molgen.mpg.de>
Date:   Tue, 11 Apr 2023 20:31:44 +0200
From:   Paul Menzel <pmenzel@...gen.mpg.de>
To:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Len Brown <lenb@...nel.org>
Cc:     Paul Menzel <pmenzel@...gen.mpg.de>, lore982@...oo.com,
        Tamim Khan <tamim@...etak.com>, linux-acpi@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] ACPI: resource: Skip IRQ override on ASUS ExpertBook B1502CBA

Like the ASUS ExpertBook B2502CBA and various ASUS Vivobook laptops, the
ASUS ExpertBook B1502CBA has an ACPI DSDT table that describes IRQ 1 as
ActiveLow while the kernel overrides it to Edge_High.

    $ sudo dmesg | grep DMI
    DMI: ASUSTeK COMPUTER INC. ASUS EXPERTBOOK B1502CBA_B1502CBA/B1502CBA, BIOS B1502CBA.300 01/18/2023
    $ grep -A 40 PS2K dsdt.dsl | grep IRQ -A 1
                    IRQ (Level, ActiveLow, Exclusive, )
                        {1}

This prevents the keyboard from working. To fix this issue, add this laptop
to the skip_override_table so that the kernel does not override IRQ 1.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=217323
Cc: lore982@...oo.com
Cc: Tamim Khan <tamim@...etak.com>
Signed-off-by: Paul Menzel <pmenzel@...gen.mpg.de>
---
 drivers/acpi/resource.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
index a222bda7e15b..cade3a9e38bb 100644
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -432,6 +432,13 @@ static const struct dmi_system_id asus_laptop[] = {
 			DMI_MATCH(DMI_BOARD_NAME, "S5602ZA"),
 		},
 	},
+	{
+		.ident = "Asus ExpertBook B1502CBA",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_BOARD_NAME, "B1502CBA"),
+		},
+	},
 	{
 		.ident = "Asus ExpertBook B2402CBA",
 		.matches = {
-- 
2.40.0