From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: MCC45TR <mursitcancihan@gmail.com>
Date: Sat, 22 Aug 2026 18:49:37 +0300
Subject: [PATCH 08/21] input: report permanent tablet mode on Xiaomi Nabu

---
 drivers/input/misc/Kconfig                   | 10 ++++
 drivers/input/misc/Makefile                  |  1 +
 drivers/input/misc/xiaomi-nabu-tablet-mode.c | 55 ++++++++++++++++++++
 3 files changed, 66 insertions(+)
 create mode 100644 drivers/input/misc/xiaomi-nabu-tablet-mode.c

diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index 1f6c57dba030..c1b5a1aaf672 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -993,4 +993,14 @@ config INPUT_STPMIC1_ONKEY
 	  To compile this driver as a module, choose M here: the
 	  module will be called stpmic1_onkey.
 
+config INPUT_XIAOMI_NABU_TABLET_MODE
+	bool "Xiaomi Pad 5 permanent tablet-mode switch"
+	depends on ARCH_QCOM
+	help
+	  Report the Xiaomi Pad 5 as permanently operating in tablet mode.
+	  Desktop environments otherwise disable automatic rotation whenever a
+	  USB pointer is present, including the SENEMOS recovery bridge mouse.
+
+	  Say Y when building a kernel for Xiaomi Pad 5 (nabu).
+
 endif
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index 2281d6803fce..b7b58921a82f 100644
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -95,3 +95,4 @@ obj-$(CONFIG_INPUT_WM831X_ON)		+= wm831x-on.o
 obj-$(CONFIG_INPUT_XEN_KBDDEV_FRONTEND)	+= xen-kbdfront.o
 obj-$(CONFIG_INPUT_YEALINK)		+= yealink.o
 obj-$(CONFIG_INPUT_IDEAPAD_SLIDEBAR)	+= ideapad_slidebar.o
+obj-$(CONFIG_INPUT_XIAOMI_NABU_TABLET_MODE) += xiaomi-nabu-tablet-mode.o
diff --git a/drivers/input/misc/xiaomi-nabu-tablet-mode.c b/drivers/input/misc/xiaomi-nabu-tablet-mode.c
new file mode 100644
index 000000000000..9306f57239b9
--- /dev/null
+++ b/drivers/input/misc/xiaomi-nabu-tablet-mode.c
@@ -0,0 +1,55 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Xiaomi Pad 5 permanent tablet-mode input switch.
+ *
+ * Nabu has no convertible hinge: it is always a tablet. Exposing that fact
+ * through the standard SW_TABLET_MODE interface keeps desktop touch mode and
+ * automatic rotation active when a USB mouse or recovery bridge is attached.
+ */
+
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/of.h>
+
+static struct input_dev *nabu_tablet_mode_input;
+
+static int __init nabu_tablet_mode_init(void)
+{
+	struct input_dev *input;
+	int ret;
+
+	if (!of_machine_is_compatible("xiaomi,nabu"))
+		return 0;
+
+	input = input_allocate_device();
+	if (!input)
+		return -ENOMEM;
+
+	input->name = "Xiaomi Pad 5 Tablet Mode Switch";
+	input->phys = "nabu/tablet-mode";
+	input->id.bustype = BUS_HOST;
+	input_set_capability(input, EV_SW, SW_TABLET_MODE);
+
+	ret = input_register_device(input);
+	if (ret) {
+		input_free_device(input);
+		return ret;
+	}
+
+	nabu_tablet_mode_input = input;
+	input_report_switch(input, SW_TABLET_MODE, 1);
+	input_sync(input);
+
+	return 0;
+}
+module_init(nabu_tablet_mode_init);
+
+static void __exit nabu_tablet_mode_exit(void)
+{
+	if (nabu_tablet_mode_input)
+		input_unregister_device(nabu_tablet_mode_input);
+}
+module_exit(nabu_tablet_mode_exit);
+
+MODULE_DESCRIPTION("Xiaomi Pad 5 permanent tablet-mode switch");
+MODULE_LICENSE("GPL");