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path: root/drivers/platform/x86/intel-hid.c
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Diffstat (limited to 'drivers/platform/x86/intel-hid.c')
-rw-r--r--drivers/platform/x86/intel-hid.c21
1 files changed, 6 insertions, 15 deletions
diff --git a/drivers/platform/x86/intel-hid.c b/drivers/platform/x86/intel-hid.c
index e5fbe017f8e1..2e4e97a626a5 100644
--- a/drivers/platform/x86/intel-hid.c
+++ b/drivers/platform/x86/intel-hid.c
@@ -14,6 +14,7 @@
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/suspend.h>
+#include "dual_accel_detect.h"
/* When NOT in tablet mode, VGBS returns with the flag 0x40 */
#define TABLET_MODE_FLAG BIT(6)
@@ -122,6 +123,7 @@ struct intel_hid_priv {
struct input_dev *array;
struct input_dev *switches;
bool wakeup_mode;
+ bool dual_accel;
};
#define HID_EVENT_FILTER_UUID "eeec56b3-4442-408f-a792-4edd4d758054"
@@ -451,22 +453,9 @@ static void notify_handler(acpi_handle handle, u32 event, void *context)
* SW_TABLET_MODE report, in these cases we enable support when receiving
* the first event instead of during driver setup.
*
- * Some 360 degree hinges (yoga) style 2-in-1 devices use 2 accelerometers
- * to allow the OS to determine the angle between the display and the base
- * of the device. On Windows these are read by a special HingeAngleService
- * process which calls an ACPI DSM (Device Specific Method) on the
- * ACPI KIOX010A device node for the sensor in the display, to let the
- * firmware know if the 2-in-1 is in tablet- or laptop-mode so that it can
- * disable the kbd and touchpad to avoid spurious input in tablet-mode.
- *
- * The linux kxcjk1013 driver calls the DSM for this once at probe time
- * to ensure that the builtin kbd and touchpad work. On some devices this
- * causes a "spurious" 0xcd event on the intel-hid ACPI dev. In this case
- * there is not a functional tablet-mode switch, so we should not register
- * the tablet-mode switch device.
+ * See dual_accel_detect.h for more info on the dual_accel check.
*/
- if (!priv->switches && (event == 0xcc || event == 0xcd) &&
- !acpi_dev_present("KIOX010A", NULL, -1)) {
+ if (!priv->switches && !priv->dual_accel && (event == 0xcc || event == 0xcd)) {
dev_info(&device->dev, "switch event received, enable switches supports\n");
err = intel_hid_switches_setup(device);
if (err)
@@ -607,6 +596,8 @@ static int intel_hid_probe(struct platform_device *device)
return -ENOMEM;
dev_set_drvdata(&device->dev, priv);
+ priv->dual_accel = dual_accel_detect();
+
err = intel_hid_input_setup(device);
if (err) {
pr_err("Failed to setup Intel HID hotkeys\n");