From 85093f79f586176f8bbf90e56e22a3dfa526e334 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Tue, 13 May 2014 16:00:28 +0200 Subject: ideapad-laptop: Blacklist rfkill control on the Lenovo Yoga 2 11 The Lenovo Yoga 2 11 always reports everything as blocked, causing userspace to not even try to use the wlan / bluetooth even though they work fine. Note this patch also removes the "else priv->rfk[i] = NULL;" bit of the rfkill initialization, it is not necessary as the priv struct is allocated with kzalloc. Reported-and-tested-by: Vincent Gerris Signed-off-by: Hans de Goede Signed-off-by: Matthew Garrett --- drivers/platform/x86/ideapad-laptop.c | 23 ++++++++++++++++++----- 1 file changed, 18 insertions(+), 5 deletions(-) (limited to 'drivers/platform/x86/ideapad-laptop.c') diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c index 6dd060a0bb65..219eb289a909 100644 --- a/drivers/platform/x86/ideapad-laptop.c +++ b/drivers/platform/x86/ideapad-laptop.c @@ -36,6 +36,7 @@ #include #include #include +#include #define IDEAPAD_RFKILL_DEV_NUM (3) @@ -819,6 +820,19 @@ static void ideapad_acpi_notify(acpi_handle handle, u32 event, void *data) } } +/* Blacklist for devices where the ideapad rfkill interface does not work */ +static struct dmi_system_id rfkill_blacklist[] = { + /* The Lenovo Yoga 2 11 always reports everything as blocked */ + { + .ident = "Lenovo Yoga 2 11", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo Yoga 2 11"), + }, + }, + {} +}; + static int ideapad_acpi_add(struct platform_device *pdev) { int ret, i; @@ -854,11 +868,10 @@ static int ideapad_acpi_add(struct platform_device *pdev) if (ret) goto input_failed; - for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++) { - if (test_bit(ideapad_rfk_data[i].cfgbit, &priv->cfg)) - ideapad_register_rfkill(priv, i); - else - priv->rfk[i] = NULL; + if (!dmi_check_system(rfkill_blacklist)) { + for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++) + if (test_bit(ideapad_rfk_data[i].cfgbit, &priv->cfg)) + ideapad_register_rfkill(priv, i); } ideapad_sync_rfk_state(priv); ideapad_sync_touchpad_state(priv); -- cgit v1.2.1