[PATCH v3 1/2] asus-wmi: Adjust tablet/lidflip handling to use enum

[Luke D. Jones]

Due to multiple types of tablet/lidflip, the existing code for
handling these events is refactored to use an enum for each type.

Signed-off-by: Luke D. Jones <luke@xxxxxxxxxx>
---
 drivers/platform/x86/asus-nb-wmi.c | 13 +++---
 drivers/platform/x86/asus-wmi.c    | 67 ++++++++++++++++++++----------
 drivers/platform/x86/asus-wmi.h    |  9 +++-
 3 files changed, 58 insertions(+), 31 deletions(-)

diff --git a/drivers/platform/x86/asus-nb-wmi.c b/drivers/platform/x86/asus-nb-wmi.c
index a81dc4b191b7..3a93e056c4e1 100644
--- a/drivers/platform/x86/asus-nb-wmi.c
+++ b/drivers/platform/x86/asus-nb-wmi.c
@@ -115,12 +115,12 @@ static struct quirk_entry quirk_asus_forceals = {
 };
 
 static struct quirk_entry quirk_asus_use_kbd_dock_devid = {
-	.use_kbd_dock_devid = true,
+	.tablet_switch_mode = asus_wmi_kbd_dock_devid,
 };
 
 static struct quirk_entry quirk_asus_use_lid_flip_devid = {
 	.wmi_backlight_set_devstate = true,
-	.use_lid_flip_devid = true,
+	.tablet_switch_mode = asus_wmi_lid_flip_devid,
 };
 
 static int dmi_matched(const struct dmi_system_id *dmi)
@@ -492,16 +492,13 @@ static void asus_nb_wmi_quirks(struct asus_wmi_driver *driver)
 
 	switch (tablet_mode_sw) {
 	case 0:
-		quirks->use_kbd_dock_devid = false;
-		quirks->use_lid_flip_devid = false;
+		quirks->tablet_switch_mode = asus_wmi_no_tablet_switch;
 		break;
 	case 1:
-		quirks->use_kbd_dock_devid = true;
-		quirks->use_lid_flip_devid = false;
+		quirks->tablet_switch_mode = asus_wmi_kbd_dock_devid;
 		break;
 	case 2:
-		quirks->use_kbd_dock_devid = false;
-		quirks->use_lid_flip_devid = true;
+		quirks->tablet_switch_mode = asus_wmi_lid_flip_devid;
 		break;
 	}
 
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index c5fa21370481..029c26a218e1 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -507,8 +507,11 @@ static bool asus_wmi_dev_is_present(struct asus_wmi *asus, u32 dev_id)
 
 static int asus_wmi_input_init(struct asus_wmi *asus)
 {
+	struct device *dev;
 	int err, result;
 
+	dev = &asus->platform_device->dev;
+
 	asus->inputdev = input_allocate_device();
 	if (!asus->inputdev)
 		return -ENOMEM;
@@ -516,35 +519,38 @@ static int asus_wmi_input_init(struct asus_wmi *asus)
 	asus->inputdev->name = asus->driver->input_name;
 	asus->inputdev->phys = asus->driver->input_phys;
 	asus->inputdev->id.bustype = BUS_HOST;
-	asus->inputdev->dev.parent = &asus->platform_device->dev;
+	asus->inputdev->dev.parent = dev;
 	set_bit(EV_REP, asus->inputdev->evbit);
 
 	err = sparse_keymap_setup(asus->inputdev, asus->driver->keymap, NULL);
 	if (err)
 		goto err_free_dev;
 
-	if (asus->driver->quirks->use_kbd_dock_devid) {
+	switch (asus->driver->quirks->tablet_switch_mode) {
+	case asus_wmi_no_tablet_switch:
+		break;
+	case asus_wmi_kbd_dock_devid:
 		result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_KBD_DOCK);
 		if (result >= 0) {
 			input_set_capability(asus->inputdev, EV_SW, SW_TABLET_MODE);
 			input_report_switch(asus->inputdev, SW_TABLET_MODE, !result);
 		} else if (result != -ENODEV) {
-			pr_err("Error checking for keyboard-dock: %d\n", result);
+			dev_err(dev, "Error checking for keyboard-dock: %d\n", result);
 		}
-	}
-
-	if (asus->driver->quirks->use_lid_flip_devid) {
+		break;
+	case asus_wmi_lid_flip_devid:
 		result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_LID_FLIP);
 		if (result < 0)
-			asus->driver->quirks->use_lid_flip_devid = 0;
+			asus->driver->quirks->tablet_switch_mode = asus_wmi_no_tablet_switch;
 		if (result >= 0) {
 			input_set_capability(asus->inputdev, EV_SW, SW_TABLET_MODE);
 			input_report_switch(asus->inputdev, SW_TABLET_MODE, result);
 		} else if (result == -ENODEV) {
-			pr_err("This device has lid_flip quirk but got ENODEV checking it. This is a bug.");
+			dev_err(dev, "This device has lid_flip quirk but got ENODEV checking it. This is a bug.");
 		} else {
-			pr_err("Error checking for lid-flip: %d\n", result);
+			dev_err(dev, "Error checking for lid-flip: %d\n", result);
 		}
+		break;
 	}
 
 	err = input_register_device(asus->inputdev);
@@ -570,8 +576,9 @@ static void asus_wmi_input_exit(struct asus_wmi *asus)
 
 static void lid_flip_tablet_mode_get_state(struct asus_wmi *asus)
 {
-	int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_LID_FLIP);
+	int result;
 
+	result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_LID_FLIP);
 	if (result >= 0) {
 		input_report_switch(asus->inputdev, SW_TABLET_MODE, result);
 		input_sync(asus->inputdev);
@@ -3404,20 +3411,26 @@ static void asus_wmi_handle_event_code(int code, struct asus_wmi *asus)
 		return;
 	}
 
-	if (asus->driver->quirks->use_kbd_dock_devid && code == NOTIFY_KBD_DOCK_CHANGE) {
-		result = asus_wmi_get_devstate_simple(asus,
-						      ASUS_WMI_DEVID_KBD_DOCK);
+	switch (asus->driver->quirks->tablet_switch_mode) {
+	case asus_wmi_no_tablet_switch:
+		break;
+	case asus_wmi_kbd_dock_devid:
+		if (code == NOTIFY_KBD_DOCK_CHANGE) {
+			result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_KBD_DOCK);
 		if (result >= 0) {
 			input_report_switch(asus->inputdev, SW_TABLET_MODE,
-					    !result);
+						!result);
 			input_sync(asus->inputdev);
 		}
 		return;
-	}
-
-	if (asus->driver->quirks->use_lid_flip_devid && code == NOTIFY_LID_FLIP) {
-		lid_flip_tablet_mode_get_state(asus);
-		return;
+		}
+		break;
+	case asus_wmi_lid_flip_devid:
+		if (code == NOTIFY_LID_FLIP) {
+			lid_flip_tablet_mode_get_state(asus);
+			return;
+		}
+		break;
 	}
 
 	if (asus->fan_boost_mode_available && code == NOTIFY_KBD_FBM) {
@@ -4085,8 +4098,14 @@ static int asus_hotk_resume(struct device *device)
 	if (asus_wmi_has_fnlock_key(asus))
 		asus_wmi_fnlock_update(asus);
 
-	if (asus->driver->quirks->use_lid_flip_devid)
+	switch (asus->driver->quirks->tablet_switch_mode) {
+	case asus_wmi_no_tablet_switch:
+	case asus_wmi_kbd_dock_devid:
+		break;
+	case asus_wmi_lid_flip_devid:
 		lid_flip_tablet_mode_get_state(asus);
+		break;
+	}
 
 	return 0;
 }
@@ -4127,8 +4146,14 @@ static int asus_hotk_restore(struct device *device)
 	if (asus_wmi_has_fnlock_key(asus))
 		asus_wmi_fnlock_update(asus);
 
-	if (asus->driver->quirks->use_lid_flip_devid)
+	switch (asus->driver->quirks->tablet_switch_mode) {
+	case asus_wmi_no_tablet_switch:
+	case asus_wmi_kbd_dock_devid:
+		break;
+	case asus_wmi_lid_flip_devid:
 		lid_flip_tablet_mode_get_state(asus);
+		break;
+	}
 
 	return 0;
 }
diff --git a/drivers/platform/x86/asus-wmi.h b/drivers/platform/x86/asus-wmi.h
index b302415bf1d9..413920bad0c6 100644
--- a/drivers/platform/x86/asus-wmi.h
+++ b/drivers/platform/x86/asus-wmi.h
@@ -25,6 +25,12 @@ struct module;
 struct key_entry;
 struct asus_wmi;
 
+enum asus_wmi_tablet_switch_mode {
+	asus_wmi_no_tablet_switch,
+	asus_wmi_kbd_dock_devid,
+	asus_wmi_lid_flip_devid,
+};
+
 struct quirk_entry {
 	bool hotplug_wireless;
 	bool scalar_panel_brightness;
@@ -33,8 +39,7 @@ struct quirk_entry {
 	bool wmi_backlight_native;
 	bool wmi_backlight_set_devstate;
 	bool wmi_force_als_set;
-	bool use_kbd_dock_devid;
-	bool use_lid_flip_devid;
+	enum asus_wmi_tablet_switch_mode tablet_switch_mode;
 	int wapf;
 	/*
 	 * For machines with AMD graphic chips, it will send out WMI event
-- 
2.37.1