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Message-Id: <20230702195057.1787686-5-sashal@kernel.org>
Date: Sun, 2 Jul 2023 15:50:50 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc: Hans de Goede <hdegoede@...hat.com>,
"Rafael J . Wysocki" <rafael.j.wysocki@...el.com>,
Sasha Levin <sashal@...nel.org>, rafael@...nel.org,
linux-acpi@...r.kernel.org
Subject: [PATCH AUTOSEL 6.4 05/12] ACPI: video: Add backlight=native DMI quirk for Apple iMac11,3
From: Hans de Goede <hdegoede@...hat.com>
[ Upstream commit 48436f2e9834b46b47b038b605c8142a1c07bc85 ]
Linux defaults to picking the non-working ACPI video backlight interface
on the Apple iMac11,3 .
Add a DMI quirk to pick the working native radeon_bl0 interface instead.
Signed-off-by: Hans de Goede <hdegoede@...hat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
drivers/acpi/video_detect.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index bcc25d457581d..61586caebb01b 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -470,6 +470,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "82BK"),
},
},
+ {
+ .callback = video_detect_force_native,
+ /* Apple iMac11,3 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "iMac11,3"),
+ },
+ },
{
/* https://bugzilla.redhat.com/show_bug.cgi?id=1217249 */
.callback = video_detect_force_native,
--
2.39.2
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