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authorMika Westerberg <mika.westerberg@linux.intel.com>2013-08-19 14:01:17 +0300
committerJiri Kosina <jkosina@suse.cz>2013-08-20 12:25:49 +0200
commit75ba899e95217fe9002878edc2777bdd49d908c3 (patch)
tree238abbd229975e0c10d95c2e4493b17c082cc5c1
parent58c59bc997d86593f0bea41845885917cf304d22 (diff)
HID: i2c-hid: use correct type for ACPI _DSM parameter
ACPI 5.0 specification requires the fourth parameter to the _DSM (Device Specific Method) to be of type package instead of integer. Failing to do that we get following warning on the console: ACPI Warning: \_SB_.PCI0.I2C1.TPL0._DSM: Argument #4 type mismatch - Found [Integer], ACPI requires [Package] (20130517/nsarguments-95) Fix this by passing an empty package to the _DSM method. The HID over I2C specification doesn't require any specific values to be passed with this parameter. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
-rw-r--r--drivers/hid/i2c-hid/i2c-hid.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c
index 879b0ed701a3..d2e0eea2bf79 100644
--- a/drivers/hid/i2c-hid/i2c-hid.c
+++ b/drivers/hid/i2c-hid/i2c-hid.c
@@ -897,8 +897,9 @@ static int i2c_hid_acpi_pdata(struct i2c_client *client,
params[1].integer.value = 1;
params[2].type = ACPI_TYPE_INTEGER;
params[2].integer.value = 1; /* HID function */
- params[3].type = ACPI_TYPE_INTEGER;
- params[3].integer.value = 0;
+ params[3].type = ACPI_TYPE_PACKAGE;
+ params[3].package.count = 0;
+ params[3].package.elements = NULL;
if (ACPI_FAILURE(acpi_evaluate_object(handle, "_DSM", &input, &buf))) {
dev_err(&client->dev, "device _DSM execution failed\n");