linux-kernel - [PATCH AUTOSEL 6.1 21/22] ACPI: x86: Add skip i2c clients quirk for Medion Lifetab S10346

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Date:   Sat, 17 Dec 2022 10:27:22 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Hans de Goede <hdegoede@...hat.com>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        "Rafael J . Wysocki" <rafael.j.wysocki@...el.com>,
        Sasha Levin <sashal@...nel.org>, rafael@...nel.org,
        mario.limonciello@....com, andriy.shevchenko@...ux.intel.com,
        linux-acpi@...r.kernel.org
Subject: [PATCH AUTOSEL 6.1 21/22] ACPI: x86: Add skip i2c clients quirk for Medion Lifetab S10346

From: Hans de Goede <hdegoede@...hat.com>

[ Upstream commit ecc6aaabcedc276128315f57755364106017c606 ]

The Medion Lifetab S10346 is a x86 tablet which ships with Android x86 as
factory OS. The Android x86 kernel fork ignores I2C devices described in
the DSDT, except for the PMIC and Audio codecs.

As usual the Medion Lifetab S10346's DSDT contains a bunch of extra I2C
devices which are not actually there, causing various resource conflicts.
Add an ACPI_QUIRK_SKIP_I2C_CLIENTS quirk for the Medion Lifetab S10346 to
the acpi_quirk_skip_dmi_ids table to woraround this.

Signed-off-by: Hans de Goede <hdegoede@...hat.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@...il.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/acpi/x86/utils.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/acpi/x86/utils.c b/drivers/acpi/x86/utils.c
index 635de40b5822..4e816bb402f6 100644
--- a/drivers/acpi/x86/utils.c
+++ b/drivers/acpi/x86/utils.c
@@ -329,6 +329,17 @@ static const struct dmi_system_id acpi_quirk_skip_dmi_ids[] = {
 		.driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
 					ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
 	},
+	{
+		/* Medion Lifetab S10346 */
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
+			DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
+			/* Way too generic, also match on BIOS data */
+			DMI_MATCH(DMI_BIOS_DATE, "10/22/2015"),
+		},
+		.driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
+					ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
+	},
 	{
 		/* Nextbook Ares 8 */
 		.matches = {
-- 
2.35.1