platform/x86: asus-wmi: fix asus ux303ub brightness issue
acpi_video0 doesn't work, asus-wmi brightness interface doesn't work, too.
So, we use native brightness interface to handle the brightness adjustion,
and add quirk_asus_ux303ub.
Signed-off-by: zino lin <linzino7@gmail.com>
Acked-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
diff --git a/drivers/platform/x86/asus-nb-wmi.c b/drivers/platform/x86/asus-nb-wmi.c
index adecc1c..f4a60e7 100644
--- a/drivers/platform/x86/asus-nb-wmi.c
+++ b/drivers/platform/x86/asus-nb-wmi.c
@@ -87,6 +87,10 @@
.no_rfkill = true,
};
+static struct quirk_entry quirk_asus_ux303ub = {
+ .wmi_backlight_native = true,
+};
+
static int dmi_matched(const struct dmi_system_id *dmi)
{
quirks = dmi->driver_data;
@@ -351,6 +355,15 @@
},
.driver_data = &quirk_no_rfkill,
},
+ {
+ .callback = dmi_matched,
+ .ident = "ASUSTeK COMPUTER INC. UX303UB",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "UX303UB"),
+ },
+ .driver_data = &quirk_asus_ux303ub,
+ },
{},
};
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 7c093a0..ce6ca31 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -2084,6 +2084,9 @@
if (asus->driver->quirks->wmi_backlight_power)
acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
+ if (asus->driver->quirks->wmi_backlight_native)
+ acpi_video_set_dmi_backlight_type(acpi_backlight_native);
+
if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
err = asus_wmi_backlight_init(asus);
if (err && err != -ENODEV)
diff --git a/drivers/platform/x86/asus-wmi.h b/drivers/platform/x86/asus-wmi.h
index 5de1df5..5e22041 100644
--- a/drivers/platform/x86/asus-wmi.h
+++ b/drivers/platform/x86/asus-wmi.h
@@ -43,6 +43,7 @@
bool scalar_panel_brightness;
bool store_backlight_power;
bool wmi_backlight_power;
+ bool wmi_backlight_native;
int wapf;
/*
* For machines with AMD graphic chips, it will send out WMI event