In order to support multiple different chipsets and communication protocols
trackpad devices in one cyapa driver, the new cyapa driver is re-designed
with one cyapa driver core and multiple device specific functions component.
The cyapa driver core is contained in this patch, it supplies basic functions
that working with kernel and input subsystem, and also supplies the interfaces
that the specific devices' component can connect and work together with as
one driver.
Signed-off-by: Dudley Du <dudl@cypress.com>
Tested-by: Jeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The touchscreen controller has a temperature sensor embedded in the SoC,
which already has hwmon support in the driver.
Add DT thermal zone support so we can use it with cpufreq for thermal
throttling.
This also adds a comment stating that we do not know the actual formula
for calculating the temperature.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
CPSW never uses RX_THRESHOLD or MISC interrupts. In
fact, they are always kept masked in their appropriate
IRQ Enable register.
Instead of allocating an IRQ that never fires, it's best
to remove that code altogether and let future patches
implement it if anybody needs those.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch is in preparation for a nicer IRQ
handling scheme where we use different IRQ
handlers for each IRQ line (as it should be).
Later, we will also drop IRQs offset 0 and 3
because they are always disabled in this driver.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Contrary to common expectations for an "int" return, these functions
return only a positive value -- if used correctly they cannot even
return 0 because the message header will necessarily be in the skb.
This makes the very common pattern of
if (genlmsg_end(...) < 0) { ... }
be a whole bunch of dead code. Many places also simply do
return nlmsg_end(...);
and the caller is expected to deal with it.
This also commonly (at least for me) causes errors, because it is very
common to write
if (my_function(...))
/* error condition */
and if my_function() does "return nlmsg_end()" this is of course wrong.
Additionally, there's not a single place in the kernel that actually
needs the message length returned, and if anyone needs it later then
it'll be very easy to just use skb->len there.
Remove this, and make the functions void. This removes a bunch of dead
code as described above. The patch adds lines because I did
- return nlmsg_end(...);
+ nlmsg_end(...);
+ return 0;
I could have preserved all the function's return values by returning
skb->len, but instead I've audited all the places calling the affected
functions and found that none cared. A few places actually compared
the return value with <= 0 in dump functionality, but that could just
be changed to < 0 with no change in behaviour, so I opted for the more
efficient version.
One instance of the error I've made numerous times now is also present
in net/phonet/pn_netlink.c in the route_dumpit() function - it didn't
check for <0 or <=0 and thus broke out of the loop every single time.
I've preserved this since it will (I think) have caused the messages to
userspace to be formatted differently with just a single message for
every SKB returned to userspace. It's possible that this isn't needed
for the tools that actually use this, but I don't even know what they
are so couldn't test that changing this behaviour would be acceptable.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull ARM SoC fixes from Olof Johansson:
"We've been sitting on our fixes branch for a while, so this batch is
unfortunately on the large side.
A lot of these are tweaks and fixes to device trees, fixing various
bugs around clocks, reg ranges, etc. There's also a few defconfig
updates (which are on the late side, no more of those).
All in all the diffstat is bigger than ideal at this time, but nothing
in here seems particularly risky"
* tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (31 commits)
reset: sunxi: fix spinlock initialization
ARM: dts: disable CCI on exynos5420 based arndale-octa
drivers: bus: check cci device tree node status
ARM: rockchip: disable jtag/sdmmc autoswitching on rk3288
ARM: nomadik: fix up leftover device tree pins
ARM: at91: board-dt-sama5: add phy_fixup to override NAND_Tree
ARM: at91/dt: sam9263: Add missing clocks to lcdc node
ARM: at91: sama5d3: dt: correct the sound route
ARM: at91/dt: sama5d4: fix the timer reg length
ARM: exynos_defconfig: Enable LM90 driver
ARM: exynos_defconfig: Enable options for display panel support
arm: dts: Use pmu_system_controller phandle for dp phy
ARM: shmobile: sh73a0 legacy: Set .control_parent for all irqpin instances
ARM: dts: berlin: correct BG2Q's SM GPIO location.
ARM: dts: berlin: add broken-cd and set bus width for eMMC in Marvell DMP DT
ARM: dts: berlin: fix io clk and add missing core clk for BG2Q sdhci2 host
ARM: dts: Revert disabling of smc91x for n900
ARM: dts: imx51-babbage: Fix ULPI PHY reset modelling
ARM: dts: dra7-evm: fix qspi device tree partition size
ARM: omap2plus_defconfig: use CONFIG_CPUFREQ_DT
...
Fix some spelling mistakes, coding style and don't assign value to static var.
Signed-off-by: Akash Shende <akash0x53s@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Johan Hedberg says:
====================
pull request: bluetooth-next 2015-01-16
Here are some more bluetooth & ieee802154 patches intended for 3.20:
- Refactoring & cleanups of ieee802154 & 6lowpan code
- Various fixes to the btmrvl driver
- Fixes for Bluetooth Low Energy Privacy feature handling
- Added build-time sanity checks for sockaddr sizes
- Fixes for Security Manager registration on LE-only controllers
- Refactoring of broken inquiry mode handling to a generic quirk
Please let me know if there are any issues pulling. Thanks.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch benefits from newly introduced switchdev notifier and uses it
to propagate fdb learn events from rocker driver to bridge. That avoids
direct function calls and possible use by other listeners (ovs).
Suggested-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
After a "page = alloc_page(mask);", we do not need to use
compound_head() : page already points to the right place.
This would be true even if using alloc_pages().
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The member irq_tasklet in the qeth_channel structure
is not referenced anymore and is removed from the
structure.
Signed-off-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Replace combination of strsep() and a temporary char *
followed by a series of "if (!strcmp(...))" with a series
of "if (sysfs_streq(...))".
Signed-off-by: Eugene Crosser <Eugene.Crosser@ru.ibm.com>
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Reviewed-by: Thomas-Mich Richter <tmricht@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
qeth_card_hw_is_reachable() was introduced as part of a new
functionality, but it is a useful abstraction that can replace
verbose checks througout the rest of the `qeth` driver.
Signed-off-by: Eugene Crosser <Eugene.Crosser@ru.ibm.com>
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Reviewed-by: Thomas-Mich Richter <tmricht@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The function debug_unregister() tests whether its argument is
NULL and then returns immediately. Thus the test around the call
is not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch is concerned with migrating the time variables for the s390
network drivers. The changes handle the y2038 problem where timespec will
overflow in the year 2038. timespec was replaced by unsigned long and
all time variables get their values from the jiffies global variable.
This was done for the sake of speed and efficiency.
Signed-off-by: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com>
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull clock driver fixes from Mike Turquette:
"Small number of fixes for clock drivers and a single null pointer
dereference fix in the framework core code.
The driver fixes vary from fixing section mismatch warnings to
preventing machines from hanging (and preventing developers from
crying)"
* tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux:
clk: fix possible null pointer dereference
Revert "clk: ppc-corenet: Fix Section mismatch warning"
clk: rockchip: fix deadlock possibility in cpuclk
clk: berlin: bg2q: remove non-exist "smemc" gate clock
clk: at91: keep slow clk enabled to prevent system hang
clk: rockchip: fix rk3288 cpuclk core dividers
clk: rockchip: fix rk3066 pll lock bit location
clk: rockchip: Fix clock gate for rk3188 hclk_emem_peri
clk: rockchip: add CLK_IGNORE_UNUSED flag to fix rk3066/rk3188 USB Host
Pull SCSI fixes from James Bottomley:
"This is one fix for a Multiqueue sleeping in invalid context problem
and a MAINTAINER file update for Qlogic"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ->queue_rq can't sleep
MAINTAINERS: Update maintainer list for qla4xxx
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates 2015-01-16
This series contains updates to i40e and i40evf.
This series is a little bit larger than normal because two of the patches are
version bumps.
Shannon provides tweaks to i40e and i40evf to keep the firmware, software
and silicon validation in line together by removing unused and
deprecated code, adding define for iSCSI and fix queue mask size. Fix
i40e so we do not give up in the reset/rebuild process if DCB setup
fails, just handle it the same as in the probe setup. Cleans up PTP
log messages by removing the use of __func__ as we are not using that
any longer and removes the netdev name, since that can change and can
be misleading. Adds struct size checks to indirect and command
structs that were left out previously. Added admin queue API updates
(LLDP control, OEM OCSD and OCBB commands).
Kevin increases ASQ timeout for scenarios with multi-function devices.
Carolyn fixes a problem where the interrupts descriptions from the MSIx
configuration were truncating the needed bus info, which makes it hard
to distinguish configurations from port to port. Increased the string
buffer size in order to allow the full data to be displayed.
Sravanthi cleans up the dump stats string from debugfs.
Jacob updates i40e to only enable the PTP interrupt in PFs which have PTP
enabled, instead of blindly enabling the PTP interrupt flags for all PFs.
Also updated i40e so that we do not do Tx or Rx timestamps if we do not
have PTP enabled. Added the same check against pf->ptp_rx as we have
in Rx timestamp code path because it is possible that the user can
configure only Tx hardware timestamping so we do not want to check for
Rx timestamp hang since the software won't be handling them.
Neerav updates the driver to disable firmware LLDP agent for NICs with
a firmware version lower than v4.3 and added a message when this happens.
Adds parsing and reporting of iSCSI capability for a given device or
function, as well as adding support for iSCSI partition type with DCB
in NPAR mode.
v2:
- Dropped patch 10 "i40e: clean up PTP log messages" based on feedback
from David Laight and David Miller
- Split up the original patch 13 "i40e: AQ API updates for new commands"
into 2 patches (now #12 & #13) based on feedback from Or Gerlitz
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
