[PATCH v2 2/2] asus-wmi: Add support for ROG X13 tablet mode

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Add quirk for ASUS ROG X13 Flow 2-in-1 to enable tablet mode with
lid flip (all screen rotations).

Signed-off-by: Luke D. Jones <luke@xxxxxxxxxx>
---
 drivers/platform/x86/asus-nb-wmi.c         | 17 +++++++++-
 drivers/platform/x86/asus-wmi.c            | 36 ++++++++++++++++++++++
 drivers/platform/x86/asus-wmi.h            |  1 +
 include/linux/platform_data/x86/asus-wmi.h |  1 +
 4 files changed, 54 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/x86/asus-nb-wmi.c b/drivers/platform/x86/asus-nb-wmi.c
index 3a93e056c4e1..4aeaac92296f 100644
--- a/drivers/platform/x86/asus-nb-wmi.c
+++ b/drivers/platform/x86/asus-nb-wmi.c
@@ -123,6 +123,11 @@ static struct quirk_entry quirk_asus_use_lid_flip_devid = {
 	.tablet_switch_mode = asus_wmi_lid_flip_devid,
 };
 
+static struct quirk_entry quirk_asus_tablet_mode = {
+	.wmi_backlight_set_devstate = true,
+	.tablet_switch_mode = asus_wmi_lid_flip_rog_devid,
+};
+
 static int dmi_matched(const struct dmi_system_id *dmi)
 {
 	pr_info("Identified laptop model '%s'\n", dmi->ident);
@@ -471,6 +476,15 @@ static const struct dmi_system_id asus_quirks[] = {
 		},
 		.driver_data = &quirk_asus_use_lid_flip_devid,
 	},
+	{
+		.callback = dmi_matched,
+		.ident = "ASUS ROG FLOW X13",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "GV301Q"),
+		},
+		.driver_data = &quirk_asus_tablet_mode,
+	},
 	{},
 };
 
@@ -574,7 +588,8 @@ static const struct key_entry asus_nb_wmi_keymap[] = {
 	{ KE_KEY, 0xC4, { KEY_KBDILLUMUP } },
 	{ KE_KEY, 0xC5, { KEY_KBDILLUMDOWN } },
 	{ KE_IGNORE, 0xC6, },  /* Ambient Light Sensor notification */
-	{ KE_KEY, 0xFA, { KEY_PROG2 } },           /* Lid flip action */
+	{ KE_KEY, 0xFA, { KEY_PROG2 } }, /* Lid flip action */
+	{ KE_KEY, 0xBD, { KEY_PROG2 } }, /* Lid flip action on ROG xflow laptops */
 	{ KE_END, 0},
 };
 
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index a32e99205697..51610bd6b1c4 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -68,6 +68,7 @@ module_param(fnlock_default, bool, 0444);
 #define NOTIFY_KBD_FBM			0x99
 #define NOTIFY_KBD_TTP			0xae
 #define NOTIFY_LID_FLIP			0xfa
+#define NOTIFY_LID_FLIP_ROG		0xbd
 
 #define ASUS_WMI_FNLOCK_BIOS_DISABLED	BIT(0)
 
@@ -529,6 +530,19 @@ static int asus_wmi_input_init(struct asus_wmi *asus)
 			pr_err("Error checking for lid-flip: %d\n", result);
 		}
 		break;
+	case asus_wmi_lid_flip_rog_devid:
+		result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_LID_FLIP_ROG);
+		if (result < 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-rog quirk but got ENODEV checking it. This is a bug.");
+		} else {
+			pr_err("Error checking for lid-flip: %d\n", result);
+		}
+		break;
 	}
 
 	err = input_register_device(asus->inputdev);
@@ -562,6 +576,16 @@ static void lid_flip_tablet_mode_get_state(struct asus_wmi *asus)
 	}
 }
 
+static void lid_flip_rog_tablet_mode_get_state(struct asus_wmi *asus)
+{
+	int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_LID_FLIP_ROG);
+
+	if (result >= 0) {
+		input_report_switch(asus->inputdev, SW_TABLET_MODE, result);
+		input_sync(asus->inputdev);
+	}
+}
+
 /* dGPU ********************************************************************/
 static int dgpu_disable_check_present(struct asus_wmi *asus)
 {
@@ -3106,6 +3130,12 @@ static void asus_wmi_handle_event_code(int code, struct asus_wmi *asus)
 			return;
 		}
 		break;
+	case asus_wmi_lid_flip_rog_devid:
+		if (code == NOTIFY_LID_FLIP_ROG) {
+			lid_flip_rog_tablet_mode_get_state(asus);
+			return;
+		}
+		break;
 	}
 
 	if (asus->fan_boost_mode_available && code == NOTIFY_KBD_FBM) {
@@ -3747,6 +3777,9 @@ static int asus_hotk_resume(struct device *device)
 	case asus_wmi_lid_flip_devid:
 		lid_flip_tablet_mode_get_state(asus);
 		break;
+	case asus_wmi_lid_flip_rog_devid:
+		lid_flip_rog_tablet_mode_get_state(asus);
+		break;
 	}
 
 	return 0;
@@ -3795,6 +3828,9 @@ static int asus_hotk_restore(struct device *device)
 	case asus_wmi_lid_flip_devid:
 		lid_flip_tablet_mode_get_state(asus);
 		break;
+	case asus_wmi_lid_flip_rog_devid:
+		lid_flip_rog_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 413920bad0c6..0187f13d2414 100644
--- a/drivers/platform/x86/asus-wmi.h
+++ b/drivers/platform/x86/asus-wmi.h
@@ -29,6 +29,7 @@ enum asus_wmi_tablet_switch_mode {
 	asus_wmi_no_tablet_switch,
 	asus_wmi_kbd_dock_devid,
 	asus_wmi_lid_flip_devid,
+	asus_wmi_lid_flip_rog_devid,
 };
 
 struct quirk_entry {
diff --git a/include/linux/platform_data/x86/asus-wmi.h b/include/linux/platform_data/x86/asus-wmi.h
index a571b47ff362..d54458431600 100644
--- a/include/linux/platform_data/x86/asus-wmi.h
+++ b/include/linux/platform_data/x86/asus-wmi.h
@@ -64,6 +64,7 @@
 #define ASUS_WMI_DEVID_PANEL_OD		0x00050019
 #define ASUS_WMI_DEVID_CAMERA		0x00060013
 #define ASUS_WMI_DEVID_LID_FLIP		0x00060062
+#define ASUS_WMI_DEVID_LID_FLIP_ROG	0x00060077
 
 /* Storage */
 #define ASUS_WMI_DEVID_CARDREADER	0x00080013
-- 
2.37.1




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