1 files changed, 31 insertions, 5 deletions

diff --git a/drivers/platform/x86/intel/hid.c b/drivers/platform/x86/intel/hid.c
index b6313ecd190c..b6c06b37862e 100644
--- a/drivers/platform/x86/intel/hid.c
+++ b/drivers/platform/x86/intel/hid.c
@@ -16,6 +16,25 @@
 #include <linux/suspend.h>
 #include "../dual_accel_detect.h"
 
+enum intel_hid_tablet_sw_mode {
+	TABLET_SW_AUTO = -1,
+	TABLET_SW_OFF  = 0,
+	TABLET_SW_AT_EVENT,
+	TABLET_SW_AT_PROBE,
+};
+
+static bool enable_5_button_array;
+module_param(enable_5_button_array, bool, 0444);
+MODULE_PARM_DESC(enable_5_button_array,
+	"Enable 5 Button Array support. "
+	"If you need this please report this to: [email protected]");
+
+static int enable_sw_tablet_mode = TABLET_SW_AUTO;
+module_param(enable_sw_tablet_mode, int, 0444);
+MODULE_PARM_DESC(enable_sw_tablet_mode,
+	"Enable SW_TABLET_MODE reporting -1:auto 0:off 1:at-first-event 2:at-probe. "
+	"If you need this please report this to: [email protected]");
+
 /* When NOT in tablet mode, VGBS returns with the flag 0x40 */
 #define TABLET_MODE_FLAG BIT(6)
 
@@ -157,7 +176,6 @@ struct intel_hid_priv {
 	struct input_dev *array;
 	struct input_dev *switches;
 	bool wakeup_mode;
-	bool auto_add_switch;
 };
 
 #define HID_EVENT_FILTER_UUID	"eeec56b3-4442-408f-a792-4edd4d758054"
@@ -487,7 +505,8 @@ 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.
 	 */
-	if (!priv->switches && priv->auto_add_switch && (event == 0xcc || event == 0xcd)) {
+	if (!priv->switches && enable_sw_tablet_mode == TABLET_SW_AT_EVENT &&
+	    (event == 0xcc || event == 0xcd)) {
 		dev_info(&device->dev, "switch event received, enable switches supports\n");
 		err = intel_hid_switches_setup(device);
 		if (err)
@@ -592,7 +611,7 @@ static bool button_array_present(struct platform_device *device)
 			return true;
 	}
 
-	if (dmi_check_system(button_array_table))
+	if (enable_5_button_array || dmi_check_system(button_array_table))
 		return true;
 
 	return false;
@@ -629,7 +648,14 @@ static int intel_hid_probe(struct platform_device *device)
 	dev_set_drvdata(&device->dev, priv);
 
 	/* See dual_accel_detect.h for more info on the dual_accel check. */
-	priv->auto_add_switch = dmi_check_system(dmi_auto_add_switch) && !dual_accel_detect();
+	if (enable_sw_tablet_mode == TABLET_SW_AUTO) {
+		if (dmi_check_system(dmi_vgbs_allow_list))
+			enable_sw_tablet_mode = TABLET_SW_AT_PROBE;
+		else if (dmi_check_system(dmi_auto_add_switch) && !dual_accel_detect())
+			enable_sw_tablet_mode = TABLET_SW_AT_EVENT;
+		else
+			enable_sw_tablet_mode = TABLET_SW_OFF;
+	}
 
 	err = intel_hid_input_setup(device);
 	if (err) {
@@ -646,7 +672,7 @@ static int intel_hid_probe(struct platform_device *device)
 	}
 
 	/* Setup switches for devices that we know VGBS return correctly */
-	if (dmi_check_system(dmi_vgbs_allow_list)) {
+	if (enable_sw_tablet_mode == TABLET_SW_AT_PROBE) {
 		dev_info(&device->dev, "platform supports switches\n");
 		err = intel_hid_switches_setup(device);
 		if (err)