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linux/drivers
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Pali Rohár abf9765d3b Input: alps - allow up to 2 invalid packets without resetting device 
commit 9d720b34c0 upstream.

On some Dell Latitude laptops ALPS device or Dell EC send one invalid byte
in 6 bytes ALPS packet. In this case psmouse driver enter out of sync
state. It looks like that all other bytes in packets are valid and also
device working properly. So there is no need to do full device reset, just
need to wait for byte which match condition for first byte (start of
packet). Because ALPS packets are bigger (6 or 8 bytes) default limit is
small.

This patch increase number of invalid bytes to size of 2 ALPS packets which
psmouse driver can drop before do full reset.

Resetting ALPS devices take some time and when doing reset on some Dell
laptops touchpad, trackstick and also keyboard do not respond. So it is
better to do it only if really necessary.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Tested-by: Pali Rohár <pali.rohar@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-21 09:22:54 -08:00
..
accessibility
acpi ACPICA: Update to GPIO region handler interface. 2014-10-05 14:54:11 -07:00
amba
ata ahci: disable MSI instead of NCQ on Samsung pci-e SSDs on macbooks 2014-11-21 09:22:52 -08:00
atm atm: idt77252: fix dev refcnt leak 2013-12-08 07:29:25 -08:00
auxdisplay
base sysfs: driver core: Fix glue dir race condition by gdp_mutex 2014-11-14 08:48:01 -08:00
bcma bcma: add more core IDs 2013-05-17 14:31:05 -04:00
block sunvdc: don't call VD_OP_GET_VTOC 2014-11-21 09:22:52 -08:00
bluetooth Bluetooth: Fix issue with USB suspend in btusb driver 2014-10-30 09:35:12 -07:00
bus bus: mvebu-mbus: allow several windows with the same target/attribute 2014-06-07 13:25:37 -07:00
cdrom drivers/cdrom/cdrom.c: use kzalloc() for failing hardware 2013-07-13 11:42:26 -07:00
char random: add and use memzero_explicit() for clearing data 2014-11-14 08:47:55 -08:00
clk clk: spear3xx: Use proper control register offset 2014-07-17 15:58:02 -07:00
clocksource clocksource: Exynos_mct: Register clock event after request_irq() 2014-06-07 13:25:29 -07:00
connector net: Use netlink_ns_capable to verify the permisions of netlink messages 2014-06-26 15:12:37 -04:00
cpufreq cpufreq: intel_pstate: Fix setting max_perf_pct in performance policy 2014-11-14 08:47:58 -08:00
cpuidle cpuidle: Check the result of cpuidle_get_driver() against NULL 2014-04-14 06:42:15 -07:00
crypto crypto: ux500 - make interrupt mode plausible 2014-09-05 16:28:35 -07:00
dca
devfreq
dio
dma ioat: fix tasklet tear down 2014-03-06 21:30:14 -08:00
edac cpc925_edac: Report UE events properly 2014-11-14 08:48:00 -08:00
eisa Revert "EISA: Initialize device before its resources" 2014-02-13 13:47:59 -08:00
extcon extcon: max77693: Fix two NULL pointer exceptions on missing pdata 2014-07-06 18:54:15 -07:00
firewire firewire: cdev: prevent kernel stack leaking into ioctl arguments 2014-11-21 09:22:53 -08:00
firmware firmware: Do not use WARN_ON(!spin_is_locked()) 2014-09-17 09:03:57 -07:00
gpio gpio: mxs: Allow for recursive enable_irq_wake() call 2014-05-13 13:59:45 +02:00
gpu drm/radeon: add missing crtc unlock when setting up the MC 2014-11-21 09:22:53 -08:00
hid HID: logitech-dj: prevent false errors to be shown 2014-10-05 14:54:08 -07:00
hsi
hv Drivers: hv: vmbus: Fix a bug in vmbus_open() 2014-10-30 09:35:11 -07:00
hwmon hwmon: (dme1737) Prevent overflow problem when writing large limits 2014-09-05 16:28:35 -07:00
hwspinlock A single patch from Vincent extending OMAP's hwspinlock support to OMAP5. 2013-05-07 14:01:27 -07:00
i2c i2c: at91: don't account as iowait 2014-11-14 08:48:01 -08:00
ide block_device_operations->release() should return void 2013-05-07 02:16:21 -04:00
idle x86 idle: Repair large-server 50-watt idle-power regression 2014-01-09 12:24:21 -08:00
iio iio:inkern: fix overwritten -EPROBE_DEFER in of_iio_channel_get_by_name 2014-10-05 14:54:12 -07:00
infiniband Target/iser: Don't put isert_conn inside disconnected handler 2014-10-05 14:54:12 -07:00
input Input: alps - allow up to 2 invalid packets without resetting device 2014-11-21 09:22:54 -08:00
iommu iommu/amd: Fix cleanup_domain for mass device removal 2014-09-17 09:03:57 -07:00
ipack
irqchip irqchip: gic: Fix core ID calculation when topology is read from DT 2014-07-28 08:00:06 -07:00
isdn isdnloop: several buffer overflows 2014-04-14 06:42:18 -07:00
leds leds: leds-pwm: properly clean up after probe failure 2014-06-07 13:25:34 -07:00
lguest x86, flags: Rename X86_EFLAGS_BIT1 to X86_EFLAGS_FIXED 2014-11-14 08:47:54 -08:00
macintosh powerpc/windfarm: Fix noisy slots-fan on Xserve (rm31) 2013-08-11 18:35:20 -07:00
mailbox
md dm raid: ensure superblock's size matches device's logical block size 2014-11-21 09:22:53 -08:00
media media: tda7432: Fix setting TDA7432_MUTE bit for TDA7432_RF register 2014-11-14 08:47:56 -08:00
memory drivers/memory: don't check resource with devm_ioremap_resource 2013-05-18 11:55:52 +02:00
memstick block_device_operations->release() should return void 2013-05-07 02:16:21 -04:00
message mptfusion: enable no_write_same for vmware scsi disks 2014-10-30 09:35:10 -07:00
mfd mfd: rtsx_pcr: Fix MSI enable error handling 2014-11-14 08:47:55 -08:00
misc mei: nfc: fix memory leak in error path 2014-09-05 16:28:36 -07:00
mmc mmc: rtsx_pci_sdmmc: fix incorrect last byte in R2 response 2014-11-14 08:47:53 -08:00
mtd UBI: add missing kmem_cache_free() in process_pool_aeb error path 2014-11-14 08:47:55 -08:00
net macvtap: Fix csum_start when VLAN tags are present 2014-11-21 09:22:53 -08:00
nfc NFC: microread: Potential overflows in microread_target_discovered() 2014-10-05 14:54:12 -07:00
ntb NTB: Correct debugfs to work with more than 1 NTB Device 2013-11-13 12:05:35 +09:00
nubus nubus: Kill nubus_proc_detach_device() 2013-05-04 14:47:26 -04:00
of of: Fix overflow bug in string property parsing functions 2014-11-14 08:48:01 -08:00
oprofile
parisc parisc: Fix interrupt routing for C8000 serial ports 2013-08-11 18:35:21 -07:00
parport parport: parport_pc: remove double PCI ID for NetMos 2014-02-06 11:08:15 -08:00
pci PCI: Generate uppercase hex for modalias interface class 2014-10-30 09:35:12 -07:00
pcmcia pcmcia: at91_cf: fix gpio_get_value in at91_cf_get_status 2013-07-21 18:21:25 -07:00
pinctrl pinctrl: protect pinctrl_list add 2014-02-20 11:06:11 -08:00
platform acer-wmi: Add acpi_backlight=video quirk for the Acer KAV80 2014-11-14 08:48:01 -08:00
pnp PNP / ACPI: proper handling of ACPI IO/Memory resource parsing failures 2014-03-23 21:38:22 -07:00
power power: max17040: Fix NULL pointer dereference when there is no platform_data 2014-02-22 12:41:29 -08:00
pps Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-05-01 17:51:54 -07:00
ps3
ptp ptp_pch: fix error handling in pch_probe() 2013-05-25 21:24:15 -07:00
pwm drivers/pwm: don't check resource with devm_ioremap_resource 2013-05-18 11:55:58 +02:00
rapidio rapidio/tsi721_dma: fix failure to obtain transaction descriptor 2014-08-07 14:30:25 -07:00
regulator regulator: arizona-ldo1: remove bypass functionality 2014-09-17 09:03:57 -07:00
remoteproc This pull request contains: 2013-05-07 14:04:56 -07:00
reset
rpmsg A small pull request consisting of: 2013-05-07 14:02:00 -07:00
rtc rtc: rtc-at91rm9200: fix infinite wait for ACKUPD irq 2014-06-26 15:12:37 -04:00
s390 s390/chsc: fix SEI usage on old FW levels 2014-05-13 13:59:42 +02:00
sbus bbc-i2c: Fix BBC I2C envctrl on SunBlade 2000 2014-08-14 09:24:16 +08:00
scsi scsi: only re-lock door after EH on devices that were reset 2014-11-21 09:22:53 -08:00
sfi
sh
sn
spi spi: pxa2xx: toggle clocks on suspend if not disabled by runtime PM 2014-11-14 08:47:59 -08:00
ssb - Lots of cleanups from Artem, including deletion of some obsolete drivers 2013-05-09 10:15:46 -07:00
ssbi
staging staging:iio:ade7758: Remove "raw" from channel name 2014-11-14 08:47:58 -08:00
target target: Fix APTPL metadata handling for dynamic MappedLUNs 2014-11-14 08:47:57 -08:00
tc
thermal drivers/thermal: don't check resource with devm_ioremap_resource 2013-05-18 11:57:30 +02:00
tty tty: Fix high cpu load if tty is unreleaseable 2014-11-14 08:48:00 -08:00
uio Fix a few incorrectly checked [io_]remap_pfn_range() calls 2013-11-13 12:05:33 +09:00
usb usb: gadget: udc: core: fix kernel oops with soft-connect 2014-11-14 08:48:00 -08:00
uwb uwb: rename random32() to prandom_u32() 2013-04-29 18:28:43 -07:00
vfio mm: close PageTail race 2014-04-03 12:01:05 -07:00
vhost vhost: validate vhost_get_vq_desc return value 2014-04-14 06:42:18 -07:00
video framebuffer: fix border color 2014-11-14 08:47:56 -08:00
virt
virtio virtio_pci: fix virtio spec compliance on restore 2014-11-14 08:47:55 -08:00
vlynq
vme VME: Correct read/write alignment algorithm 2014-02-22 12:41:28 -08:00
w1 w1: fix w1_send_slave dropping a slave id 2014-05-06 07:55:28 -07:00
watchdog watchdog: ath79_wdt: avoid spurious restarts on AR934x 2014-07-06 18:54:14 -07:00
xen xen/gnttab: leave lazy MMU mode in the case of a m2p override failure 2013-12-11 22:36:27 -08:00
zorro proc: Supply PDE attribute setting accessor functions 2013-05-01 17:29:18 -04:00
Kconfig ARM: arm-soc driver changes for 3.10 2013-05-04 12:31:18 -07:00
Makefile ARM: arm-soc driver changes for 3.10 2013-05-04 12:31:18 -07:00