[PATCH] ACPI: video: Add backlight=native DMI quirk for Dell G15 5515

[Hans de Goede <hdegoede@redhat.com>]

The Dell G15 5515 has the WMI interface (and WMI call returns) expected
by the nvidia-wmi-ec-backlight interface. But the backlight class device
registered by the nvidia-wmi-ec-backlight driver does not actually work.

The amdgpu_bl0 native GPU backlight class device does actually work,
add a backlight=native DMI quirk for this.

Cc: Daniel Dadap <ddadap@nvidia.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 drivers/acpi/video_detect.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 841f6213b4de..88acc09773bb 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -645,6 +645,16 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
 		},
 	},
 
+	/* Models which have nvidia-ec-wmi support, but should not use it. */
+	{
+	 .callback = video_detect_force_native,
+	 /* Dell G15 5515 */
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "Dell G15 5515"),
+		},
+	},
+
 	/*
 	 * Desktops which falsely report a backlight and which our heuristics
 	 * for this do not catch.
-- 
2.37.3