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Revert "ideapad-laptop: Disable touchpad interface on Yoga models" 

I've received a bug report from a user that the touchpad control part
of the ideapad-laptop ACPI interface does work for him on his
"Lenovo Yoga 2 13", and that this patch causes a regression for him.

Since it did not work for me when I had a "Lenovo Yoga 2 11" in my own
hands (loaned from a friend). It seems that this is a bit of hit and miss.

Since the result of having a false positive here is worse, then the minor
annoyance of a false touchpad disabled messages being shown after suspend /
resume on models (or is it firmware versions?) where the interface does not
work, simply revert the patch.

This reverts commit f79a901331.

Reported-by: GOESSEL Guillaume <g_goessel@outlook.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
This commit is contained in:
Hans de Goede 2014-08-25 12:00:13 +02:00 committed by Darren Hart
parent e181ba15ed
commit 3b264d279e
1 changed files with 0 additions and 27 deletions
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27
drivers/platform/x86/ideapad-laptop.c
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@ -88,7 +88,6 @@ struct ideapad_private {
struct dentry *debug;
unsigned long cfg;
bool has_hw_rfkill_switch;
bool has_touchpad_control;
};
static bool no_bt_rfkill;
@ -767,9 +766,6 @@ 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
@ -844,28 +840,6 @@ 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;
@ -889,7 +863,6 @@ 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)