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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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