The acpi_video0 interface doesn't not work on Dell Inspiron 3138,
so using the vendor brightness interface, instead of the acpi one.
Signed-off-by: AceLan Kao <acelan.kao@xxxxxxxxxxxxx>
---
drivers/platform/x86/dell-laptop.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
index c608b1d..9d2a4af 100644
--- a/drivers/platform/x86/dell-laptop.c
+++ b/drivers/platform/x86/dell-laptop.c
@@ -62,6 +62,7 @@ struct calling_interface_structure {
struct quirk_entry {
u8 touchpad_led;
+ u8 vendor_backlight;
};
static struct quirk_entry *quirks;
@@ -70,6 +71,10 @@ static struct quirk_entry quirk_dell_vostro_v130 = {
.touchpad_led = 1,
};
+static struct quirk_entry quirk_dell_inspiron_3138 = {
+ .vendor_backlight = 1,
+};
+
static int dmi_matched(const struct dmi_system_id *dmi)
{
quirks = dmi->driver_data;
@@ -268,6 +273,15 @@ static struct dmi_system_id dell_quirks[] = {
},
.driver_data = &quirk_dell_vostro_v130,
},
+ {
+ .callback = dmi_matched,
+ .ident = "Dell Inspiron 3138",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 3138"),
+ },
+ .driver_data = &quirk_dell_inspiron_3138,
+ },
{ }
};
@@ -843,6 +857,9 @@ static int __init dell_init(void)
&dell_debugfs_fops);
#ifdef CONFIG_ACPI
+ if (quirks && quirks->vendor_backlight)
+ acpi_video_dmi_promote_vendor();
+
/* In the event of an ACPI backlight being available, don't
* register the platform controller.
*/
--
1.8.3.2
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