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    Subject[PATCH] platform/x86: peaq-wmi: Blacklist Lenovo ideapad 700-15ISK
    Date
    peaq-wmi on Lenovo ideapad 700-15ISK keeps sending KEY_SOUND,
    which makes user's repeated keys gets interrupted.

    The system does not have Dolby button, let's blacklist it.

    BugLink: https://bugs.launchpad.net/bugs/1720219
    Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
    ---
    drivers/platform/x86/peaq-wmi.c | 19 +++++++++++++++++--
    1 file changed, 17 insertions(+), 2 deletions(-)

    diff --git a/drivers/platform/x86/peaq-wmi.c b/drivers/platform/x86/peaq-wmi.c
    index bc98ef95514a..5673d5daebc3 100644
    --- a/drivers/platform/x86/peaq-wmi.c
    +++ b/drivers/platform/x86/peaq-wmi.c
    @@ -11,6 +11,7 @@
    #include <linux/input-polldev.h>
    #include <linux/kernel.h>
    #include <linux/module.h>
    +#include <linux/dmi.h>

    #define PEAQ_DOLBY_BUTTON_GUID "ABBC0F6F-8EA1-11D1-00A0-C90629100000"
    #define PEAQ_DOLBY_BUTTON_METHOD_ID 5
    @@ -64,9 +65,22 @@ static void peaq_wmi_poll(struct input_polled_dev *dev)
    }
    }

    +static const struct dmi_system_id peaq_blacklist[] __initconst = {
    + {
    + /* Lenovo ideapad 700-15ISK does not have Dolby button */
    + .ident = "Lenovo ideapad 700-15ISK",
    + .matches = {
    + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
    + DMI_MATCH(DMI_PRODUCT_NAME, "80RU"),
    + },
    + },
    + {}
    +};
    +
    static int __init peaq_wmi_init(void)
    {
    - if (!wmi_has_guid(PEAQ_DOLBY_BUTTON_GUID))
    + if (!wmi_has_guid(PEAQ_DOLBY_BUTTON_GUID) ||
    + dmi_check_system(peaq_blacklist))
    return -ENODEV;

    peaq_poll_dev = input_allocate_polled_device();
    @@ -86,7 +100,8 @@ static int __init peaq_wmi_init(void)

    static void __exit peaq_wmi_exit(void)
    {
    - if (!wmi_has_guid(PEAQ_DOLBY_BUTTON_GUID))
    + if (!wmi_has_guid(PEAQ_DOLBY_BUTTON_GUID) ||
    + dmi_check_system(peaq_blacklist))
    return;

    input_unregister_polled_device(peaq_poll_dev);
    --
    2.14.1
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