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| author | Hans de Goede <hdegoede@redhat.com> | 2014-07-18 12:21:47 +0200 |
|---|---|---|
| committer | Matthew Garrett <matthew.garrett@nebula.com> | 2014-08-16 01:23:54 -0700 |
| commit | f79a901331a823ae370584b15cd39dd110b95a0a (patch) | |
| tree | 2acefae31f55da03b4e2d7eed1c50f2f44d351a3 | |
| parent | 6d6ded3bdb0ed6f65d1f58d5d84971f6b3a39b70 (diff) | |
| download | blackbird-op-linux-f79a901331a823ae370584b15cd39dd110b95a0a.tar.gz blackbird-op-linux-f79a901331a823ae370584b15cd39dd110b95a0a.zip | |
ideapad-laptop: Disable touchpad interface on Yoga models
Yoga models don't offer touchpad ctrl through the ideapad interface, causing
ideapad_sync_touchpad_state to send wrong touchpad enable/disable events.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
| -rw-r--r-- | drivers/platform/x86/ideapad-laptop.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c index b0e3a2eef0ac..84641877df28 100644 --- a/drivers/platform/x86/ideapad-laptop.c +++ b/drivers/platform/x86/ideapad-laptop.c @@ -88,6 +88,7 @@ struct ideapad_private { struct dentry *debug; unsigned long cfg; bool has_hw_rfkill_switch; + bool has_touchpad_control; }; static bool no_bt_rfkill; @@ -766,6 +767,9 @@ static void ideapad_sync_touchpad_state(struct ideapad_private *priv) { unsigned long value; + if (!priv->has_touchpad_control) + return; + /* Without reading from EC touchpad LED doesn't switch state */ if (!read_ec_data(priv->adev->handle, VPCCMD_R_TOUCHPAD, &value)) { /* Some IdeaPads don't really turn off touchpad - they only @@ -840,6 +844,28 @@ static struct dmi_system_id no_hw_rfkill_list[] = { {} }; +/* + * Some models don't offer touchpad ctrl through the ideapad interface, causing + * ideapad_sync_touchpad_state to send wrong touchpad enable/disable events. + */ +static struct dmi_system_id no_touchpad_ctrl_list[] = { + { + .ident = "Lenovo Yoga 1 series", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo IdeaPad Yoga"), + }, + }, + { + .ident = "Lenovo Yoga 2 11 / 13 / Pro", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo Yoga 2"), + }, + }, + {} +}; + static int ideapad_acpi_add(struct platform_device *pdev) { int ret, i; @@ -863,6 +889,7 @@ static int ideapad_acpi_add(struct platform_device *pdev) priv->adev = adev; priv->platform_device = pdev; priv->has_hw_rfkill_switch = !dmi_check_system(no_hw_rfkill_list); + priv->has_touchpad_control = !dmi_check_system(no_touchpad_ctrl_list); ret = ideapad_sysfs_init(priv); if (ret) |
