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ideapad: read brightness setting on brightness key notify 

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=25922

On ideapad Y530, the brightness key notify will be blocked if the last notify
is not responsed by getting the brightness value. Read value when we get the
notify shall fix the problem and will not have any difference on other ideapads.

Signed-off-by: Ike Panhc <ike.pan@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
This commit is contained in:
Ike Panhc 2011-02-23 21:39:59 +08:00 committed by Matthew Garrett
parent 9179746652
commit 883ae7992c
1 changed files with 2 additions and 0 deletions
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2
drivers/platform/x86/ideapad-laptop.c
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@ -459,6 +459,8 @@ static void ideapad_acpi_notify(struct acpi_device *adevice, u32 event)
if (test_bit(vpc_bit, &vpc1)) {
if (vpc_bit == 9)
ideapad_sync_rfk_state(adevice);
else if (vpc_bit == 4)
read_ec_data(handle, 0x12, &vpc2);
else
ideapad_input_report(priv, vpc_bit);
}