| Commit message (Collapse) | Author | Age | Files | Lines |
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Pull ARM updates from Russell King:
"First ARM push of this merge window, post me coming back from holiday.
This is what has been in linux-next for the last few weeks. Not much
to say which isn't described by the commit summaries."
* 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: (32 commits)
ARM: 7463/1: topology: Update cpu_power according to DT information
ARM: 7462/1: topology: factorize the update of sibling masks
ARM: 7461/1: topology: Add arch_scale_freq_power function
ARM: 7456/1: ptrace: provide separate functions for tracing syscall {entry,exit}
ARM: 7455/1: audit: move syscall auditing until after ptrace SIGTRAP handling
ARM: 7454/1: entry: don't bother with syscall tracing on ret_from_fork path
ARM: 7453/1: audit: only allow syscall auditing for pure EABI userspace
ARM: 7452/1: delay: allow timer-based delay implementation to be selected
ARM: 7451/1: arch timer: implement read_current_timer and get_cycles
ARM: 7450/1: dcache: select DCACHE_WORD_ACCESS for little-endian ARMv6+ CPUs
ARM: 7449/1: use generic strnlen_user and strncpy_from_user functions
ARM: 7448/1: perf: remove arm_perf_pmu_ids global enumeration
ARM: 7447/1: rwlocks: remove unused branch labels from trylock routines
ARM: 7446/1: spinlock: use ticket algorithm for ARMv6+ locking implementation
ARM: 7445/1: mm: update CONTEXTIDR register to contain PID of current process
ARM: 7444/1: kernel: add arch-timer C3STOP feature
ARM: 7460/1: remove asm/locks.h
ARM: 7439/1: head.S: simplify initial page table mapping
ARM: 7437/1: zImage: Allow DTB command line concatenation with ATAG_CMDLINE
ARM: 7436/1: Do not map the vectors page as write-through on UP systems
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Make the OS timer registers have IOMEM like properities so they can
be passed to readl_relaxed/writel_relaxed() et.al. rather than being
straight volatile dereferences. Add linux/io.h includes where
required.
linux/io.h includes added to arch/arm/mach-sa1100/cpu-sa1100.c,
arch/arm/mach-sa1100/jornada720_ssp.c, arch/arm/mach-sa1100/leds-lart.c
drivers/input/touchscreen/jornada720_ts.c, drivers/pcmcia/sa1100_shannon.c
from Arnd.
This fixes these warnings:
arch/arm/mach-sa1100/time.c: In function 'sa1100_timer_init':
arch/arm/mach-sa1100/time.c:104: warning: passing argument 1 of 'clocksource_mmio_init' discards qualifiers from pointer target type
arch/arm/mach-pxa/time.c: In function 'pxa_timer_init':
arch/arm/mach-pxa/time.c:126: warning: passing argument 1 of 'clocksource_mmio_init' discards qualifiers from pointer target type
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input layer updates from Dmitry Torokhov:
"First set of updates for the input subsystem. You will get a new
touchscreen driver (Melfas mms114), a new keypad driver for LPC32xx
SoC, large update to Atmel mXT touchscreen driver, a lot of drivers
acquired device tree support and a slew of other fixes."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (57 commits)
Input: add MELFAS mms114 touchscreen driver
Input: add support for key scan interface of the LPC32xx SoC
Input: omap4-keypad - add device tree support
Input: hanwang - add support for Art Master II tablet
Input: spear_keyboard - reconfigure operating frequency on suspend
Input: spear_keyboard - fix clock handling during suspend/resume
Input: ff-memless - fix a couple min_t() casts
Input: synaptics - print firmware ID and board number at init
Input: spear_keyboard - generalize keyboard frequency configuration
Input: spear_keyboard - rename bit definitions to reflect register
Input: spear_keyboard - use correct io accessors
Input: spear-keyboard - fix disable device_init_wakeup in remove
Input: wacom_i2c - fix compiler warning
Input: imx_keypad - check error returned by clk_prepare_enable()
Input: imx_keypad - adapt the new kpp clock name
Input: imx_keypad - use clk_prepare_enable/clk_disable_unprepare()
Input: ad7879 - add option to correct xy axis
Input: synaptics_usb - Remove TrackPoint name trailing whitespace
Revert "Input: atmel_mxt_ts - warn if sysfs could not be created"
Input: MT - Include win8 support
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This is a initial driver for new touchscreen chip mms114 of MELFAS.
It uses I2C interface and supports 10 multi touch.
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This is a driver for the key scan interface of the LPC32xx SoC
Signed-off-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Add device tree support for omap4 keypad driver and update the
Documentation with omap4 keypad device tree binding information.
Tested on omap4430 sdp.
Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This change adds support for old Hanwang Art master II tablet
Signed-off-by: weixing <weixing@hanwang.com.cn>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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On some platform it may happen that the input clock to keyboard may
change during suspend, thus impacting its wakeup capability.
There is no means for keyboard driver to know this frequency before
hand. Hence introduce a platform data 'suspended_rate' which indicates
the frequency during suspend at which keyboard operates.
Accordingly reprogram keyboard while going into suspend and restore
original configuration at the time of resume.
Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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SPEAr keyboard should normally disable clock during suspend and enable it
during resume.
For cases where it is expected to act as a wakeup source the clock can
remain in the same state i.e. kept enabled if it is being used.
Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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envelope->attack_level is a u16 type. We're trying to clamp it here
so it's between 0 and 0x7fff. Unfortunately, the cast to __s16 turns
all the values larger than 0x7fff into negative numbers and min_t()
thinks they are less than 0x7fff. envelope_level is an int so now
we've got negative values stored there.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Read the Firmware ID and Board Number from a synaptics device at init
and display them in the system log.
Device behavior is very board and firmware dependent.
It may prove useful for users to include this information when providing
bug reports or other feedback.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Acked-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Current implementation hard coded keyboard frequency configuration
assuming input clock as fixed APB (83 MHz). Generalize the configuration
using clock framework APIs.
Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Rename bit definition macros to reflect keyboard registers clearly thus
being more readable.
Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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All SPEAr keyboard registers are 32 bit wide and are word aligned. This
patch aligns all io access to be word size using relaxed version of
readl/writel.
Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This patch is to disable device wakeup while removing keyboard.
Signed-off-by: Vipul Kumar Samar <vipulkumar.samar@st.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Apparently GCC can't figure out that we bail if we fail to query device
and will not try to use 'features':
drivers/input/touchscreen/wacom_i2c.c: In function ‘wacom_i2c_probe’:
drivers/input/touchscreen/wacom_i2c.c:177:20: warning: ‘features.fw_version’
may be used uninitialized in this function [-Wmaybe-uninitialized]
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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atmel_mxt_ts driver by Daniel and MT protocol addition for win8 devices.
Conflicts:
drivers/input/touchscreen/atmel_mxt_ts.c
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Dmitry: I understand that I am a bit late to the party :) but I do not
agree with this change. Failure to create attributes is not sometihng
that user could cause (at least not easily) and thus would not be a
setup issue but something more severe. I believe we should fail
loading the driver so sysfs attribute breakage will be noticed as soon
as possible, instead of discovering it much much later in the process.
This reverts commit 639900380062ecd78ee8b265ea23929c565469b4.
Requested-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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The normal messages sent after boot or NVRAM update are T6 reports,
containing a status, and the config memory checksum. Parse them and dump
a useful info message.
This patch tested on an MXT224E.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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Each interrupt contains information for all contacts with changing
properties. Process all of this information at once, and send it all in a
a single input report (ie input events ending in EV_SYN/SYN_REPORT).
This patch was tested using an MXT224E.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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Atmel mxt devices can report one finger for each T9 reportid.
Therefore, this range can be used to report the max number of MT-B slots
to userspace instead of assuming a fixed 10.
Note that mxt_initialized() must complete early, since the input_dev
properties now depend on values in the object table.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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This small refactor is in preparation for checking more report types
in the mxt_interrupt message processing loop.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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Streamline interrupt processing by caching the T9 reportid range when
first reading the object table.
In the process, refactor reading the object descriptor table.
First, since the object_table entries are now exactly the same layout
in device memory and in the driver, allocate an appropriately sized
array and fetch the entire table directly into it in a single i2c
transaction. Since a 6 byte table object requires 10 bytes to read,
doing this dramatically reduces overhead.
Note: The cached T9 reportid's are initialized to 0, which is an invalid
reportid. Thus, the checks in the interrupt handler will always fail for
devices that do not support the T9 object. Therefore, after doing a
firmware update, the old object table is destroyed and all cached object
values are reset to 0, before reading the new object table, in case
the new firmware does not have the old objects.
This patch tested on an MXT224E.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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The Object Table is freed in three cases:
1) When the driver is being removed.
2) In the error path of mxt_initialize().
3) Just after a firmware update, when a new object table is
about to be read.
For cases 2 & 3, the driver is not immediately unloaded, so this patch
refactors these cases to use a common cleanup function. It also refactors
the mxt_initialize error paths to ensure that this cleanup happens.
Note: mxt_update_fw_store() does not handle errors during mxt_initialize().
A proposed fix for this is in a subsequent patchset.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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Update the debug message:
* print inidividual status bits
* print the pressure value
* use '%u' for unsigned quantities
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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Instead of carrying around per-finger state in the driver instance, just
report each finger as it arrives to the input layer, and let the input
layer (evdev) hold the event state (which it does anyway).
Note: this driver does not really do MT-B properly. Each input report
(a group of input events followed by a SYN_REPORT) only contains data for
a single contact. When multiple fingers are present on a device, each is
properly reported in its own MT_SLOT. However, there is only ever one
MT_SLOT per SYN_REPORT. This is fixed in a subsequent patch.
This patch was tested with an mXT224E.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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Make firmware and hardware version strings available to userspace.
This is useful, for example, to allow a userspace program to implement
a firwmare update policy.
Change-Id: I1eddb4bbf5f3f9ae6947a8528598973ddead18cf
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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Print unsigned values as '%u'.
Also, parse and print the firmware version in its canonical format, as
suggested by Nick Dyer.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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Reading the whole info block in one i2c transaction speeds up driver
probe significantly, especially on slower i2c busses.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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Write each object using a single bulk i2c write transfer.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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The i2c bus requires 4 bytes to do a 1-byte write
(1 byte i2c address + 2 byte offset + 1 byte data).
By taking a length with writes, the driver can amortize transaction
overhead by performing larger transactions where appropriate.
This patch just sets up the new API. Later patches refactor writes
to take advantage of the larger transactions.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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The i2c layer can report a variety of errors, including -ENXIO for an i2c
NAK. Instead of treating them all as -EIO, pass the actual i2c layer
error up to the caller.
However, still report as -EIO the unlikely case that a transaction was
partially completed, and no error message was returned from i2c_*().
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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For objects with multiple instances, dump them all, prepending each with
its "Instance #".
[rydberg@euromail.se: break out mxt_show_instance()]
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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Conserve limited (PAGE_SIZE) sysfs output buffer space by only showing
readable objects and not printing the object's index, which is not useful
to userspace.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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Read each object in a single i2c transaction instead of byte-by-byte
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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Using scnprintf() is a cleaner way to ensure that we don't overwrite the
PAGE_SIZE sysfs output buffer.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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T5 is the message processor object. Reading it will only have two
outcomes, neither of which is particularly useful:
1) the message count decrements, and a valid message will be lost
2) an invalid message will be read (reportid == 0xff)
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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If sysfs entry creation fails, the driver is still usable, so don't
just abort probe. Just warn and continue.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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Hopefully this new code path will never be used, but better safe than
sorry...
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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The atmel_mxt_ts driver can support multiple devices simultaneously.
Use the i2c_client name instead of the driver name when requesting an
interrupt to make the different interrupts distinguishable in
/proc/interrupts and top.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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This allows userspace to more easily distinguish which bus a particular
atmel_mxt_ts device is attached to.
The resulting phys will be something like:
i2c-1-0067/input0
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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Fixes the following sparse warning:
drivers/input/input-mt.c:138:40: warning: Using plain integer as NULL pointer
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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use threaded IRQs use IRQF_ONESHOT.
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Check error returned by clk_prepare_enable().
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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With the new i.mx clock framework we should pass NULL as the keypad
clock name.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Adapt clock handling to the new i.mx clock framework and fix the following
warning:
input: imx-keypad as /devices/platform/imx-keypad/input/input0
------------[ cut here ]------------
WARNING: at drivers/clk/clk.c:511 __clk_enable+0x98/0xa8()
Modules linked in:
[<c001a680>] (unwind_backtrace+0x0/0xf4) from [<c002452c>] (warn_slowpath_commo)
[<c002452c>] (warn_slowpath_common+0x48/0x60) from [<c0024560>] (warn_slowpath_)
[<c0024560>] (warn_slowpath_null+0x1c/0x24) from [<c02c4ec4>] (__clk_enable+0x9)
[<c02c4ec4>] (__clk_enable+0x98/0xa8) from [<c02c4ef8>] (clk_enable+0x24/0x5c)
[<c02c4ef8>] (clk_enable+0x24/0x5c) from [<c027ac6c>] (imx_keypad_open+0x28/0xc)
[<c027ac6c>] (imx_keypad_open+0x28/0xc8) from [<c0274b14>] (input_open_device+0)
[<c0274b14>] (input_open_device+0x78/0xa8) from [<c01ec884>] (kbd_connect+0x60/)
[<c01ec884>] (kbd_connect+0x60/0x80) from [<c0273b94>] (input_attach_handler+0x)
[<c0273b94>] (input_attach_handler+0x220/0x258) from [<c02755d4>] (input_regist)
[<c02755d4>] (input_register_device+0x31c/0x390) from [<c038da1c>] (imx_keypad_)
[<c038da1c>] (imx_keypad_probe+0x2e4/0x3b8) from [<c020326c>] (platform_drv_pro)
[<c020326c>] (platform_drv_probe+0x18/0x1c) from [<c0201f64>] (driver_probe_dev)
[<c0201f64>] (driver_probe_device+0x84/0x210) from [<c020217c>] (__driver_attac)
[<c020217c>] (__driver_attach+0x8c/0x90) from [<c02008f8>] (bus_for_each_dev+0x)
[<c02008f8>] (bus_for_each_dev+0x68/0x90) from [<c0201064>] (bus_add_driver+0xa)
[<c0201064>] (bus_add_driver+0xa4/0x23c) from [<c020275c>] (driver_register+0x7)
[<c020275c>] (driver_register+0x78/0x12c) from [<c00087c0>] (do_one_initcall+0x)
[<c00087c0>] (do_one_initcall+0x34/0x188) from [<c04b9310>] (kernel_init+0xe4/0)
[<c04b9310>] (kernel_init+0xe4/0x1a8) from [<c0015bd8>] (kernel_thread_exit+0x0)
---[ end trace 1d550e891d03d7ce ]---
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Sebastian Zenker reported that driver swaps x and y samples when the
touchscreen leads are connected in accordance with the datasheet
specification. Transposed axis can be typically corrected by touch
screen calibration however this bug also negatively influences touch
pressure measurements.
Add an option to correct x and y axis.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Reported-and-tested-by: Sebastian Zenker <sebastian.zenker@gmx.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The USB TrackPoint name string contains a space at the trailing end that
can cause confusion/difficulty when creating udev rules. Example:
"Synaptics Inc. Composite TouchPad / TrackPoint (Stick) "
This patch removes the trailing space.
Signed-off-by: Bob Ross <pigiron@gmx.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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