user/sven/linux.git/drivers/input/serio, branch v3.18.40

Input: i8042 - break load dependency between atkbd/psmouse and i8042

2016-08-22T16:23:19Z

[ Upstream commit 4097461897df91041382ff6fcd2bfa7ee6b2448c ] As explained in 1407814240-4275-1-git-send-email-decui@microsoft.com we have a hard load dependency between i8042 and atkbd which prevents keyboard from working on Gen2 Hyper-V VMs. > hyperv_keyboard invokes serio_interrupt(), which needs a valid serio > driver like atkbd.c. atkbd.c depends on libps2.c because it invokes > ps2_command(). libps2.c depends on i8042.c because it invokes > i8042_check_port_owner(). As a result, hyperv_keyboard actually > depends on i8042.c. > > For a Generation 2 Hyper-V VM (meaning no i8042 device emulated), if a > Linux VM (like Arch Linux) happens to configure CONFIG_SERIO_I8042=m > rather than =y, atkbd.ko can't load because i8042.ko can't load(due to > no i8042 device emulated) and finally hyperv_keyboard can't work and > the user can't input: https://bugs.archlinux.org/task/39820 > (Ubuntu/RHEL/SUSE aren't affected since they use CONFIG_SERIO_I8042=y) To break the dependency we move away from using i8042_check_port_owner() and instead allow serio port owner specify a mutex that clients should use to serialize PS/2 command stream. Reported-by: Mark Laws Tested-by: Mark Laws Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov Signed-off-by: Sasha Levin

Input: i8042 - add Fujitsu Lifebook U745 to the nomux list

2016-02-10T03:56:18Z

[ Upstream commit dd0d0d4de582a6a61c032332c91f4f4cb2bab569 ] Without i8042.nomux=1 the Elantech touch pad is not working at all on a Fujitsu Lifebook U745. This patch does not seem necessary for all U745 (maybe because of different BIOS versions?). However, it was verified that the patch does not break those (see opensuse bug 883192: https://bugzilla.opensuse.org/show_bug.cgi?id=883192). Signed-off-by: Aurélien Francillon Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov Signed-off-by: Sasha Levin

Input: serio - fix blocking of parport

2015-12-03T04:25:47Z

[ Upstream commit 1a5e251996e1b602f2ddc9261ee9de0ca1875bfa ] If parkbd_allocate_serio() fails to allocate memory we are releasing the parport but we missed unregistering the device. As a result this device with exclusive access to that parport remains registered. And no other device will be able to use that parport even though this driver has failed to load. Signed-off-by: Sudip Mukherjee Signed-off-by: Dmitry Torokhov Signed-off-by: Sasha Levin

Input: i8042 - add noloop quirk for Medion Akoya E7225 (MD98857)

2015-02-06T06:36:04Z

commit 1d90d6d5522befa8efa1a7ea406be65cf865ded4 upstream. Without this the aux port does not get detected, and consequently the touchpad will not work. With this patch the touchpad is detected: $ dmesg | grep -E "(SYN|i8042|serio)" pnp 00:03: Plug and Play ACPI device, IDs SYN1d22 PNP0f13 (active) i8042: PNP: PS/2 Controller [PNP0303:PS2K,PNP0f13:PS2M] at 0x60,0x64 irq 1,12 serio: i8042 KBD port at 0x60,0x64 irq 1 serio: i8042 AUX port at 0x60,0x64 irq 12 input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input4 psmouse serio1: synaptics: Touchpad model: 1, fw: 8.1, id: 0x1e2b1, caps: 0xd00123/0x840300/0x126800, board id: 2863, fw id: 1473085 input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input6 dmidecode excerpt for this laptop is: Handle 0x0001, DMI type 1, 27 bytes System Information Manufacturer: Medion Product Name: Akoya E7225 Version: 1.0 Signed-off-by: Jochen Hein Signed-off-by: Dmitry Torokhov Signed-off-by: Greg Kroah-Hartman

Input: I8042 - add Acer Aspire 7738 to the nomux list

2015-01-27T16:29:44Z

commit 9333caeaeae4f831054e0e127a6ed3948b604d3e upstream. When KBC is in active multiplexing mode the touchpad on this laptop does not work. Reported-by: Bilal Koc Signed-off-by: Dmitry Torokhov Signed-off-by: Greg Kroah-Hartman

Input: i8042 - reset keyboard to fix Elantech touchpad detection

2015-01-27T16:29:43Z

commit 148e9a711e034e06310a8c36b64957934ebe30f2 upstream. On some laptops, keyboard needs to be reset in order to successfully detect touchpad (e.g., some Gigabyte laptop models with Elantech touchpads). Without resettin keyboard touchpad pretends to be completely dead. Based on the original patch by Mateusz Jończyk this version has been expanded to include DMI based detection & application of the fix automatically on the affected models of laptops. This has been confirmed to fix problem by three users already on three different models of laptops. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=81331 Signed-off-by: Srihari Vijayaraghavan Acked-by: Mateusz Jończyk Tested-by: Srihari Vijayaraghavan Tested by: Zakariya Dehlawi Tested-by: Guillaum Bouchard Signed-off-by: Dmitry Torokhov Signed-off-by: Greg Kroah-Hartman

Revert "Input: i8042 - disable active multiplexing by default"

2014-10-31T16:35:53Z

This reverts commit 68da166491655bc54051bf04c78ce648e2e33508. It turns out that the assertion about scope of regressions due to always keeping keyboard controller in legacy mode was proven wrong. There are laptops, such as Clevo W650SH, that only have internal touchpad (no external PS/2 ports), that require active multiplexing mode to switch the touchpad (Elantech) into native mode instead of basic PS/2 emulation. Reported-by: Roel Aaij Signed-off-by: Dmitry Torokhov

Input: altera_ps2 - use correct type for irq return value

2014-10-31T16:32:02Z

The irq function altera_ps2_rxint returns an irqreturn_t, so use the same type for variable storing the return value. Signed-off-by: Tobias Klauser Signed-off-by: Dmitry Torokhov

Input: altera_ps2 - write to correct register when disabling interrupts

2014-10-31T16:31:57Z

In altera_ps2_close, the data register (offset 0) is written instead of the control register (offset 4), leading to the RX interrupt not being disabled. Fix this by calling writel() with the offset for the proper register. Signed-off-by: Tobias Klauser Signed-off-by: Dmitry Torokhov

Input: i8042 - quirks for Fujitsu Lifebook A544 and Lifebook AH544

2014-10-24T21:56:55Z

These models need i8042.notimeout, otherwise the touchpad will not work. BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=69731 BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1111138 Cc: stable@vger.kernel.org Signed-off-by: Hans de Goede Signed-off-by: Dmitry Torokhov