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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Hans de Goede <hdegoede@redhat.com>,
	Ben Greening <bgreening@gmail.com>,
	"Rafael J . Wysocki" <rafael.j.wysocki@intel.com>,
	Sasha Levin <sashal@kernel.org>,
	rafael@kernel.org, linux-acpi@vger.kernel.org
Subject: [PATCH AUTOSEL 5.19 50/58] ACPI: video: Use native backlight on Dell Inspiron N4010
Date: Sun,  7 Aug 2022 21:31:08 -0400	[thread overview]
Message-ID: <20220808013118.313965-50-sashal@kernel.org> (raw)
In-Reply-To: <20220808013118.313965-1-sashal@kernel.org>

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

[ Upstream commit 03c440a26cba6cfa540d65924e9db86fcea362b2 ]

The Dell Inspiron N4010 does not have ACPI backlight control,
so acpi_video_get_backlight_type()'s heuristics return vendor as
the type to use.

But the vendor interface is broken, where as the native (intel_backlight)
works well, add a quirk to use native.

Link: https://lore.kernel.org/regressions/CALF=6jEe5G8+r1Wo0vvz4GjNQQhdkLT5p8uCHn6ZXhg4nsOWow@mail.gmail.com/
Reported-and-tested-by: Ben Greening <bgreening@gmail.com>
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>
---
 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 becc198e4c22..4099140bbd5f 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -347,6 +347,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
 		DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro12,1"),
 		},
 	},
+	{
+	 .callback = video_detect_force_native,
+	 /* Dell Inspiron N4010 */
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron N4010"),
+		},
+	},
 	{
 	 .callback = video_detect_force_native,
 	 /* Dell Vostro V131 */
-- 
2.35.1


      parent reply	other threads:[~2022-08-08  1:37 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20220808013118.313965-1-sashal@kernel.org>
2022-08-08  1:30 ` [PATCH AUTOSEL 5.19 37/58] ACPI: EC: Remove duplicate ThinkPad X1 Carbon 6th entry from DMI quirks Sasha Levin
2022-08-08  1:30 ` [PATCH AUTOSEL 5.19 38/58] ACPI: EC: Drop the EC_FLAGS_IGNORE_DSDT_GPE quirk Sasha Levin
2022-08-08  1:30 ` [PATCH AUTOSEL 5.19 39/58] ACPI: PM: save NVS memory for Lenovo G40-45 Sasha Levin
2022-08-08  1:30 ` [PATCH AUTOSEL 5.19 40/58] ACPI: LPSS: Fix missing check in register_device_clock() Sasha Levin
2022-08-08  1:31 ` Sasha Levin [this message]

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