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Message-Id: <1282120637-11398-1-git-send-email-ike.pan@canonical.com>
Date: Wed, 18 Aug 2010 16:37:17 +0800
From: Ike Panhc <ike.pan@...onical.com>
To: platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-acpi@...r.kernel.org
Cc: Thomas Renninger <trenn@...e.de>, Alan Cox <alan@...ux.intel.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Corentin Chary <corentincj@...aif.net>,
David Woodhouse <David.Woodhouse@...el.com>,
Randy Dunlap <randy.dunlap@...cle.com>,
Len Brown <len.brown@...el.com>,
Matthew Garrett <mjg@...hat.com>
Subject: [PATCH 2/8] ideapad: check VPC bit before sync rfkill hw status
Check VPC bit to make sure the HW rfkill is touched.
Signed-off-by: Ike Panhc <ike.pan@...onical.com>
---
drivers/platform/x86/ideapad_acpi.c | 16 +++++++++++++++-
1 files changed, 15 insertions(+), 1 deletions(-)
diff --git a/drivers/platform/x86/ideapad_acpi.c b/drivers/platform/x86/ideapad_acpi.c
index af630e2..6176597 100644
--- a/drivers/platform/x86/ideapad_acpi.c
+++ b/drivers/platform/x86/ideapad_acpi.c
@@ -381,7 +381,21 @@ static int ideapad_acpi_remove(struct acpi_device *adevice, int type)
static void ideapad_acpi_notify(struct acpi_device *adevice, u32 event)
{
- ideapad_sync_rfk_state(adevice);
+ acpi_handle handle = adevice->handle;
+ unsigned long vpc1, vpc2, vpc_bit;
+
+ if (read_ec_data(handle, 0x10, &vpc1))
+ return;
+ if (read_ec_data(handle, 0x1A, &vpc2))
+ return;
+
+ vpc1 = (vpc2 << 8) | vpc1;
+ for (vpc_bit = 0; vpc_bit < 16; vpc_bit++) {
+ if (test_bit(vpc_bit, &vpc1)) {
+ if (vpc_bit == 9)
+ ideapad_sync_rfk_state(adevice);
+ }
+ }
}
static struct acpi_driver ideapad_acpi_driver = {
--
1.7.0.4
--
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