Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input subsystem fixes from Dmitry Torokhov.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: uinput - fix ioctl nr overflow for UI_GET_SYSNAME/VERSION
Input: I8042 - add Acer Aspire 7738 to the nomux list
Input: elantech - support new ICs types for version 4
Input: i8042 - reset keyboard to fix Elantech touchpad detection
MAINTAINERS: remove Dmitry Torokhov's alternate address
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 4df73da1..176d4fe 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1277,6 +1277,7 @@
i8042.notimeout [HW] Ignore timeout condition signalled by controller
i8042.reset [HW] Reset the controller during init and cleanup
i8042.unlock [HW] Unlock (ignore) the keylock
+ i8042.kbdreset [HW] Reset device connected to KBD port
i810= [HW,DRM]
diff --git a/MAINTAINERS b/MAINTAINERS
index 2fa3853..2e99241 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4930,7 +4930,6 @@
INPUT (KEYBOARD, MOUSE, JOYSTICK, TOUCHSCREEN) DRIVERS
M: Dmitry Torokhov <dmitry.torokhov@gmail.com>
-M: Dmitry Torokhov <dtor@mail.ru>
L: linux-input@vger.kernel.org
Q: http://patchwork.kernel.org/project/linux-input/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index f2b9780..77ecf6d 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -1520,6 +1520,8 @@
case 7:
case 8:
case 9:
+ case 10:
+ case 13:
etd->hw_version = 4;
break;
default:
diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index c66d1b5..764857b 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -415,6 +415,13 @@
},
},
{
+ /* Acer Aspire 7738 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 7738"),
+ },
+ },
+ {
/* Gericom Bellagio */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Gericom"),
@@ -745,6 +752,35 @@
{ }
};
+/*
+ * Some laptops need keyboard reset before probing for the trackpad to get
+ * it detected, initialised & finally work.
+ */
+static const struct dmi_system_id __initconst i8042_dmi_kbdreset_table[] = {
+ {
+ /* Gigabyte P35 v2 - Elantech touchpad */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "P35V2"),
+ },
+ },
+ {
+ /* Aorus branded Gigabyte X3 Plus - Elantech touchpad */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "X3"),
+ },
+ },
+ {
+ /* Gigabyte P34 - Elantech touchpad */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "P34"),
+ },
+ },
+ { }
+};
+
#endif /* CONFIG_X86 */
#ifdef CONFIG_PNP
@@ -1040,6 +1076,9 @@
if (dmi_check_system(i8042_dmi_dritek_table))
i8042_dritek = true;
+ if (dmi_check_system(i8042_dmi_kbdreset_table))
+ i8042_kbdreset = true;
+
/*
* A20 was already enabled during early kernel init. But some buggy
* BIOSes (in MSI Laptops) require A20 to be enabled using 8042 to
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index 924e4bf..986a71c 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -67,6 +67,10 @@
module_param_named(notimeout, i8042_notimeout, bool, 0);
MODULE_PARM_DESC(notimeout, "Ignore timeouts signalled by i8042");
+static bool i8042_kbdreset;
+module_param_named(kbdreset, i8042_kbdreset, bool, 0);
+MODULE_PARM_DESC(kbdreset, "Reset device connected to KBD port");
+
#ifdef CONFIG_X86
static bool i8042_dritek;
module_param_named(dritek, i8042_dritek, bool, 0);
@@ -790,6 +794,16 @@
return -1;
/*
+ * Reset keyboard (needed on some laptops to successfully detect
+ * touchpad, e.g., some Gigabyte laptop models with Elantech
+ * touchpads).
+ */
+ if (i8042_kbdreset) {
+ pr_warn("Attempting to reset device connected to KBD port\n");
+ i8042_kbd_write(NULL, (unsigned char) 0xff);
+ }
+
+/*
* Test AUX IRQ delivery to make sure BIOS did not grab the IRQ and
* used it for a PCI card or somethig else.
*/
diff --git a/include/uapi/linux/uinput.h b/include/uapi/linux/uinput.h
index baeab83..013c9d8 100644
--- a/include/uapi/linux/uinput.h
+++ b/include/uapi/linux/uinput.h
@@ -82,7 +82,7 @@
* The complete sysfs path is then /sys/devices/virtual/input/--NAME--
* Usually, it is in the form "inputN"
*/
-#define UI_GET_SYSNAME(len) _IOC(_IOC_READ, UINPUT_IOCTL_BASE, 300, len)
+#define UI_GET_SYSNAME(len) _IOC(_IOC_READ, UINPUT_IOCTL_BASE, 44, len)
/**
* UI_GET_VERSION - Return version of uinput protocol
@@ -91,7 +91,7 @@
* the integer pointed to by the ioctl argument. The protocol version
* is hard-coded in the kernel and is independent of the uinput device.
*/
-#define UI_GET_VERSION _IOR(UINPUT_IOCTL_BASE, 301, unsigned int)
+#define UI_GET_VERSION _IOR(UINPUT_IOCTL_BASE, 45, unsigned int)
/*
* To write a force-feedback-capable driver, the upload_effect