By reading from method _CFG to make sure we bind on the correct VPC2004 device.
Signed-off-by: Ike Panhc <ike.pan@xxxxxxxxxxxxx>
---
drivers/platform/x86/ideapad_acpi.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/drivers/platform/x86/ideapad_acpi.c b/drivers/platform/x86/ideapad_acpi.c
index 15d7e7e..9face93 100644
--- a/drivers/platform/x86/ideapad_acpi.c
+++ b/drivers/platform/x86/ideapad_acpi.c
@@ -326,10 +326,13 @@ MODULE_DEVICE_TABLE(acpi, ideapad_device_ids);
static int ideapad_acpi_add(struct acpi_device *adevice)
{
- int i;
+ int i, cfg;
int devs_present[5];
struct ideapad_private *priv;
+ if (read_method_int(adevice->handle, "_CFG", &cfg))
+ return -ENODEV;
+
for (i = IDEAPAD_DEV_CAMERA; i < IDEAPAD_DEV_KILLSW; i++) {
devs_present[i] = ideapad_dev_exists(i);
if (devs_present[i] < 0)
--
1.7.1
--
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