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ideapad-laptop: Blacklist rfkill control on the Lenovo Yoga 2 11

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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 <vgerris@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
This commit is contained in:
Hans de Goede 2014-05-13 16:00:28 +02:00 committed by Matthew Garrett
parent c08db55fe1
commit 85093f79f5
1 changed files with 18 additions and 5 deletions
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23
drivers/platform/x86/ideapad-laptop.c
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@ -36,6 +36,7 @@
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/i8042.h>
#include <linux/dmi.h>
#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);