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    Subject[PATCH 3.16.y-ckt 083/183] ACPI / video: Add some Samsung models to disable_native_backlight list
    Date
    3.16.7-ckt8 -stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Aaron Lu <aaron.lu@intel.com>

    commit 7d0b93499f4879ddbc75d594f4ea216ba964f78e upstream.

    Several Samsung laptop models (SAMSUNG 870Z5E/880Z5E/680Z5E and
    SAMSUNG 370R4E/370R4V/370R5E/3570RE/370R5V) do not have a working
    native backlight control interface so restore their acpi_videoX
    interface.

    Link: https://bugzilla.kernel.org/show_bug.cgi?id=84221
    Link: https://bugzilla.kernel.org/show_bug.cgi?id=84651
    For SAMSUNG 870Z5E/880Z5E/680Z5E:
    Reported-and-tested-by: Brent Saner <brent.saner@gmail.com>
    Reported-by: Vitaliy Filippov <vitalif@yourcmc.ru>
    Reported-by: Laszlo KREKACS <laszlo.krekacs.list@gmail.com>
    For SAMSUNG 370R4E/370R4V/370R5E/3570RE/370R5V:
    Reported-by: Vladimir Perepechin <vovochka13@gmail.com>
    Signed-off-by: Aaron Lu <aaron.lu@intel.com>
    Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
    Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
    ---
    drivers/acpi/video.c | 17 +++++++++++++++++
    1 file changed, 17 insertions(+)

    diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
    index f1e3496c00c7..28fa58c11e56 100644
    --- a/drivers/acpi/video.c
    +++ b/drivers/acpi/video.c
    @@ -694,6 +694,23 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
    DMI_MATCH(DMI_PRODUCT_NAME, "HP ENVY 15 Notebook PC"),
    },
    },
    +
    + {
    + .callback = video_disable_native_backlight,
    + .ident = "SAMSUNG 870Z5E/880Z5E/680Z5E",
    + .matches = {
    + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
    + DMI_MATCH(DMI_PRODUCT_NAME, "870Z5E/880Z5E/680Z5E"),
    + },
    + },
    + {
    + .callback = video_disable_native_backlight,
    + .ident = "SAMSUNG 370R4E/370R4V/370R5E/3570RE/370R5V",
    + .matches = {
    + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
    + DMI_MATCH(DMI_PRODUCT_NAME, "370R4E/370R4V/370R5E/3570RE/370R5V"),
    + },
    + },
    {}
    };


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