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Subject[PATCH 4.19 053/133] ACPI: video: Use native backlight on Acer Aspire 5783z
Date
From: Hans de Goede <hdegoede@redhat.com>

[ Upstream commit 1c8fbc1f9bfb804ef2f0d4ee9397ab800e33f23a ]

The Acer Aspire 5783z shipped with Windows 7 and as such does not trigger
our "win8 ready" heuristic for prefering the native backlight interface.

Still ACPI backlight control doesn't work on this model, where as the
native (intel_video) backlight interface does work. Add a quirk to
force using native backlight control on this model.

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 | 9 +++++++++
1 file changed, 9 insertions(+)

diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 214c4e2e8ade1..5f0178967d14c 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -328,6 +328,15 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "Precision 7510"),
},
},
+ {
+ .callback = video_detect_force_native,
+ .ident = "Acer Aspire 5738z",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5738"),
+ DMI_MATCH(DMI_BOARD_NAME, "JV50"),
+ },
+ },

/*
* Desktops which falsely report a backlight and which our heuristics
--
2.25.1


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