From: Hans de Goede <hdegoede@redhat.com>
Date: Thu, 2 Feb 2023 12:44:49 +0000 (+0100)
Subject: ACPI: video: Fix Lenovo Ideapad Z570 DMI match
X-Git-Tag: v6.1.21~863
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f4c1138d37c3a356597a0560ca7993ee90a79b2d;p=platform%2Fkernel%2Flinux-starfive.git

ACPI: video: Fix Lenovo Ideapad Z570 DMI match

[ Upstream commit 2d11eae42d52a131f06061015e49dc0f085c5bfc ]

Multiple Ideapad Z570 variants need acpi_backlight=native to force native
use on these pre Windows 8 machines since acpi_video backlight control
does not work here.

The original DMI quirk matches on a product_name of "102434U" but other
variants may have different product_name-s such as e.g. "1024D9U".

Move to checking product_version instead as is more or less standard for
Lenovo DMI quirks for similar reasons.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index b48f85c..7f0ed84 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -432,7 +432,7 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
 	 /* Lenovo Ideapad Z570 */
 	 .matches = {
 		DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "102434U"),
+		DMI_MATCH(DMI_PRODUCT_VERSION, "Ideapad Z570"),
 		},
 	},
 	{