ACPI / video: Add force native backlight quirk for Lenovo Ideapad Z570

[sfrench/cifs-2.6.git] / drivers / acpi / video.c

diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 2f45dca317247b0f3fdb46719f92ba8fe7b9fff8..cc79d3fedfb2a33aa8ca273865c1bf84ec2b190b 100644 (file)
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -425,6 +425,12 @@ static int __init video_disable_native_backlight(const struct dmi_system_id *d)
        return 0;
 }
 
+static int __init video_enable_native_backlight(const struct dmi_system_id *d)
+{
+       use_native_backlight_dmi = NATIVE_BACKLIGHT_ON;
+       return 0;
+}
+
 static struct dmi_system_id video_dmi_table[] __initdata = {
        /*
         * Broken _BQC workaround http://bugzilla.kernel.org/show_bug.cgi?id=13121
@@ -566,6 +572,17 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
                DMI_MATCH(DMI_PRODUCT_NAME, "XPS L521X"),
                },
        },
+
+       /* Non win8 machines which need native backlight nevertheless */
+       {
+        /* https://bugzilla.redhat.com/show_bug.cgi?id=1187004 */
+        .callback = video_enable_native_backlight,
+        .ident = "Lenovo Ideapad Z570",
+        .matches = {
+               DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+               DMI_MATCH(DMI_PRODUCT_NAME, "102434U"),
+               },
+       },
        {}
 };