[PATCH AUTOSEL 5.15 01/34] Input: synaptics-rmi4 - fail probing if memory allocation for "phys" fails

[PATCH AUTOSEL 5.15 01/34] Input: synaptics-rmi4 - fail probing if memory allocation for "phys" fails

[Sasha Levin]

From: Kunwu Chan <chentao@kylinos.cn>

[ Upstream commit bc4996184d56cfaf56d3811ac2680c8a0e2af56e ]

While input core can work with input->phys set to NULL userspace might
depend on it, so better fail probing if allocation fails. The system must
be in a pretty bad shape for it to happen anyway.

Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Link: https://lore.kernel.org/r/20240117073124.143636-1-chentao@kylinos.cn
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/input/rmi4/rmi_driver.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/input/rmi4/rmi_driver.c b/drivers/input/rmi4/rmi_driver.c
index 258d5fe3d395c..aa32371f04af6 100644
--- a/drivers/input/rmi4/rmi_driver.c
+++ b/drivers/input/rmi4/rmi_driver.c
@@ -1196,7 +1196,11 @@ static int rmi_driver_probe(struct device *dev)
 		}
 		rmi_driver_set_input_params(rmi_dev, data->input);
 		data->input->phys = devm_kasprintf(dev, GFP_KERNEL,
-						"%s/input0", dev_name(dev));
+						   "%s/input0", dev_name(dev));
+		if (!data->input->phys) {
+			retval = -ENOMEM;
+			goto err;
+		}
 	}
 
 	retval = rmi_init_functions(data);
-- 
2.43.0

[PATCH AUTOSEL 5.15 30/34] Input: make input_class constant

[Sasha Levin]

From: "Ricardo B. Marliere" <ricardo@marliere.net>

[ Upstream commit a4735d40a5da96a637af6e5bf9f6ec8b9d996acd ]

Since commit 43a7206b0963 ("driver core: class: make class_register() take
a const *"), the driver core allows for struct class to be in read-only
memory, so move the input_class structure to be declared at build time
placing it into read-only memory, instead of having to be dynamically
allocated at boot time.

Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Link: https://lore.kernel.org/r/20240305-class_cleanup-input-v1-1-0c3d950c25db@marliere.net
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/input/input.c | 2 +-
 include/linux/input.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/input/input.c b/drivers/input/input.c
index 5ca3f11d2d759..5c26f1e2c25a0 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -1901,7 +1901,7 @@ static char *input_devnode(struct device *dev, umode_t *mode)
 	return kasprintf(GFP_KERNEL, "input/%s", dev_name(dev));
 }
 
-struct class input_class = {
+const struct class input_class = {
 	.name		= "input",
 	.devnode	= input_devnode,
 };
diff --git a/include/linux/input.h b/include/linux/input.h
index 0354b298d8749..6cc4bad37f40e 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -512,7 +512,7 @@ void input_enable_softrepeat(struct input_dev *dev, int delay, int period);
 
 bool input_device_enabled(struct input_dev *dev);
 
-extern struct class input_class;
+extern const struct class input_class;
 
 /**
  * struct ff_device - force-feedback part of an input device
-- 
2.43.0

[PATCH AUTOSEL 5.15 31/34] Input: allocate keycode for Display refresh rate toggle

[Sasha Levin]

From: Gergo Koteles <soyer@irl.hu>

[ Upstream commit cfeb98b95fff25c442f78a6f616c627bc48a26b7 ]

Newer Lenovo Yogas and Legions with 60Hz/90Hz displays send a wmi event
when Fn + R is pressed. This is intended for use to switch between the
two refresh rates.

Allocate a new KEY_REFRESH_RATE_TOGGLE keycode for it.

Signed-off-by: Gergo Koteles <soyer@irl.hu>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/15a5d08c84cf4d7b820de34ebbcf8ae2502fb3ca.1710065750.git.soyer@irl.hu
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/uapi/linux/input-event-codes.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/uapi/linux/input-event-codes.h b/include/uapi/linux/input-event-codes.h
index 7989d9483ea75..bed20a89c14c1 100644
--- a/include/uapi/linux/input-event-codes.h
+++ b/include/uapi/linux/input-event-codes.h
@@ -602,6 +602,7 @@
 
 #define KEY_ALS_TOGGLE		0x230	/* Ambient light sensor */
 #define KEY_ROTATE_LOCK_TOGGLE	0x231	/* Display rotation lock */
+#define KEY_REFRESH_RATE_TOGGLE	0x232	/* Display refresh rate toggle */
 
 #define KEY_BUTTONCONFIG		0x240	/* AL Button Configuration */
 #define KEY_TASKMANAGER		0x241	/* AL Task/Project Manager */
-- 
2.43.0

[PATCH AUTOSEL 5.15 32/34] platform/x86: touchscreen_dmi: Add an extra entry for a variant of the Chuwi Vi8 tablet

[Sasha Levin]

From: Alban Boyé <alban.boye@protonmail.com>

[ Upstream commit 1266e2efb7512dbf20eac820ca2ed34de6b1c3e7 ]

Signed-off-by: Alban Boyé <alban.boye@protonmail.com>
Link: https://lore.kernel.org/r/20240227223919.11587-1-alban.boye@protonmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/touchscreen_dmi.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/platform/x86/touchscreen_dmi.c b/drivers/platform/x86/touchscreen_dmi.c
index 08a9b802be712..161bd19441042 100644
--- a/drivers/platform/x86/touchscreen_dmi.c
+++ b/drivers/platform/x86/touchscreen_dmi.c
@@ -1153,6 +1153,15 @@ const struct dmi_system_id touchscreen_dmi_table[] = {
 			DMI_MATCH(DMI_BIOS_VERSION, "CHUWI.D86JLBNR"),
 		},
 	},
+	{
+		/* Chuwi Vi8 dual-boot (CWI506) */
+		.driver_data = (void *)&chuwi_vi8_data,
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "i86"),
+			DMI_MATCH(DMI_BIOS_VERSION, "CHUWI2.D86JHBNR02"),
+		},
+	},
 	{
 		/* Chuwi Vi8 Plus (CWI519) */
 		.driver_data = (void *)&chuwi_vi8_plus_data,
-- 
2.43.0