linux-kernel - [PATCH v2 6/6] acpi/x86: s2idle: Add a quirk for Lenovo Slim 7 Pro 14ARH7

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Date:   Mon, 12 Sep 2022 12:24:00 -0500
From:   Mario Limonciello <mario.limonciello@....com>
To:     <rafael@...nel.org>, <linux-kernel@...r.kernel.org>
CC:     <catalin@...ebit.com>, <philipp.zabel@...il.com>,
        <travisghansen@...oo.com>, <Shyam-sundar.S-k@....com>,
        Mario Limonciello <mario.limonciello@....com>,
        Len Brown <lenb@...nel.org>, <linux-acpi@...r.kernel.org>
Subject: [PATCH v2 6/6] acpi/x86: s2idle: Add a quirk for Lenovo Slim 7 Pro 14ARH7

Lenovo Slim 7 Pro 14ARH7 has a sporadically non-functional keyboard
when resuming from s2idle.  This is caused by some missing calls to the
EC that don't occur in the AMD codepath but only in the Microsoft codepath.

Add the system to the quirk list to force Microsoft codepath.

Reported-by: Travis Glenn Hansen <travisghansen@...oo.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216473
Signed-off-by: Mario Limonciello <mario.limonciello@....com>
---
v1->v2:
 * New patch
---
 drivers/acpi/x86/s2idle.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/acpi/x86/s2idle.c b/drivers/acpi/x86/s2idle.c
index 4bdc7133d2ea..8475a3915812 100644
--- a/drivers/acpi/x86/s2idle.c
+++ b/drivers/acpi/x86/s2idle.c
@@ -428,6 +428,17 @@ static const struct dmi_system_id s2idle_dmi_table[] __initconst = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "ROG Zephyrus G14 GA402"),
 		},
 	},
+	{
+		/*
+		 * Lenovo Slim 7 Pro X 14ARH7
+		 * https://bugzilla.kernel.org/show_bug.cgi?id=216473
+		 */
+		.callback = lps0_prefer_microsoft,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "82V2"),
+		},
+	},
 	{}
 };
 
-- 
2.34.1