linux-kernel - [PATCH] ACPI: resource: Skip IRQ override on ASUS ExpertBook B1502CGA

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Message-Id: <20240107085305.6981-1-mekosko@projectyo.network>
Date: Sun,  7 Jan 2024 13:53:07 +0500
From: Michael Maltsev <mekosko@...jectyo.network>
To: "Rafael J. Wysocki" <rafael@...nel.org>,
	Len Brown <lenb@...nel.org>
Cc: Michael Maltsev <mekosko@...jectyo.network>,
	linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] ACPI: resource: Skip IRQ override on ASUS ExpertBook B1502CGA

Like the ASUS ExpertBook B1502CBA and various ASUS laptops, the
ASUS ExpertBook B1502CGA has an ACPI DSDT table that describes IRQ 1 as
ActiveLow while the kernel overrides it to Edge_High.

	$ sudo dmesg | grep DMI
	[    0.000000] DMI: ASUSTeK COMPUTER INC. ASUS EXPERTBOOK B1502CGA_B1502CGA/B1502CGA, BIOS B1502CGA.303 06/05/2023
	$ 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.

Signed-off-by: Michael Maltsev <mekosko@...jectyo.network>
---
 drivers/acpi/resource.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
index c297e40c5bdc..b0c3da70f809 100644
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -453,6 +453,13 @@ static const struct dmi_system_id asus_laptop[] = {
 			DMI_MATCH(DMI_BOARD_NAME, "B1402CVA"),
 		},
 	},
+	{
+		.ident = "Asus ExpertBook B1502CGA",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_BOARD_NAME, "B1502CGA"),
+		},
+	},
 	{
 		.ident = "Asus ExpertBook B2402CBA",
 		.matches = {
-- 
2.39.2