i2c-pxa does not need linux/sched.h nor linux/time.h includes, so
remove these.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
i2c-pxa was created before i2c_8bit_addr_from_msg() was implemented,
and used its own i2c_pxa_addr_byte() which is functionally the same.
Sadly, it was never updated to use this new helper. Switch it over.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
In i2c_powermac_register_devices(), variable 'found_onyx' is bool and
assigned '0' and 'true' in different places. Use 'false' instead of '0'.
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
We want to break with "i" set to zero whether we find the rate we want
or not. In the current code, if we don't find the rate we want then it
exits the loop with "i" set to -1 and results in an array underflow.
Fixes: 09cc9a3bce ("i2c: stm32f7: allows for any bus frequency")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Alain Volmat <alain.volmat@st.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Add support for SMBUS quick command.
SMBUS quick command passes single bit of information to the
slave (target) device. Can be used to turn slave device on or off.
By default i2c_detect tool uses the smbus quick cmd to try and
detect devices. Without this support it will not detect some slaves.
Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Use of_property_read_u32 to read the "reg" and "i2c-address" property
instead of using of_get_property to check the return values.
Signed-off-by: Aishwarya R <aishwaryarj100@gmail.com>
Tested-by: Erhard Furtner <erhard_f@mailbox.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
If there is no interrupt defined then an error is logged due
to the use of platform_get_irq. The driver handles not having
the interrupt by falling back to polling, therefore make
the appropriate call when claiming it.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Some bindings are for the bus master, some are for the slaves.
Regroup them and give them separate headings to make it clear.
Also, remove references to "generic names" which is for nodes and not
for compatibles.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Do not limitate to the 3 (100KHz, 400KHz, 1MHz) bus frequency but
instead allows any frequency (if it matches timing requirements).
Depending on the requested frequency, use the spec data from either
Standard, Fast or Fast Plus mode.
Hardcoding of min/max bus frequencies is removed and is instead computed.
The driver do not use anymore speed identifier but instead handle
directly the frequency and figure out the spec data (necessary
for the computation of the timing register) based on the frequency.
Signed-off-by: Alain Volmat <alain.volmat@st.com>
Reviewed-by: Pierre-Yves MORDRET <pierre-yves.mordret@st.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
For STM32F7, STM32H7 and STM32MP1 SoCs, if timing parameters
match, the bus clock frequency can be from 1Hz to 1MHz.
Signed-off-by: Alain Volmat <alain.volmat@st.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Do not print an error trace when deferring probe for some resource.
Fix as well the error message in case of tx dma_request_chan failure.
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Alain Volmat <alain.volmat@st.com>
Reviewed-by: Pierre-Yves MORDRET <pierre-yves.mordret@st.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
The BCM2711, supported by ARCH_BCM2835, also has a controller by the
brcmstb driver so let's allow it to be compiled on that platform.
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
If the slave eeprom has a "firmware-name" in devicetree, then pre-load
the data in the eeprom with this file. Otherwise we init the eeprom with
0xFF.
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Signed-off-by: Björn Ardö <bjorn.ardo@axis.com>
[wsa: some cosmetic changes]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This commit adds I2C bus support for the Camera Control Interface
(CCI) I2C controller found on the Qualcomm SoC processors. This I2C
controller supports two masters and they are registered to the core.
CCI versions supported in the driver are msm8916, msm8996 and sdm845.
This is a rework of the patch posted by Vinod:
https://patchwork.kernel.org/patch/10569961/
With additional fixes + most of the comments addressed.
Signed-off-by: Todor Tomov <todor.tomov@linaro.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Tested-by: Robert Foss <robert.foss@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
[wsa: removed err msg after platform_get_irq]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Custom parameters for HCNT/LCNT are not available for OF based system.
Thus, we will use existing SCL timing parameter calculation functions
for High Speed Mode too.
The value for the parameters tSYMBOL and tLOW is taken from DesignWare
DW_apb_i2c Databook v2.01a, section 3.15.4.6. The calculation should
assume higher bus load since it gives slower timing parameter.
Signed-off-by: Wan Ahmad Zainie <wan.ahmad.zainie.wan.mohamad@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
i801_add_mux() fills in the GPIO lookup table by manually populating an
array of gpiod_lookup structures. Use the existing GPIO_LOOKUP() helper
macro instead, to relax a dependency on the gpiod_lookup structure's
member names.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
When I wanted to print the chosen values to debug output, I concluded
that a helper function to parse one timing would be helpful.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
The AMD X370 and other AM4 chipsets (A/B/X 3/4/5 parts) and Threadripper
equivalents have a secondary SMBus controller at I/O port address
0x0B20. This bus is used by several manufacturers to control
motherboard RGB lighting via embedded controllers. I have been using
this bus in my OpenRGB project to control the Aura RGB on many
motherboards and ASRock also uses this bus for their Polychrome RGB
controller.
I am not aware of any CZ-compatible platforms which do not have the
second SMBus channel. All of AMD's AM4- and Threadripper- series
chipsets that OpenRGB users have tested appear to have this secondary
bus. I also noticed this secondary bus is present on older AMD
platforms including my FM1 home server.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=202587
Signed-off-by: Adam Honse <calcprogrammer1@gmail.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Tested-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
use devm_platform_get_and_ioremap_resource() to simplify code, which
contains platform_get_resource() and devm_ioremap_resource(), it also
get the resource for use by the following code.
Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This sorts the actual field names too, potentially causing even more
chaos and confusion at merge time if you have edited the MAINTAINERS
file. But the end result is a more consistent layout, and hopefully
it's a one-time pain minimized by doing this just before the -rc1
release.
This was entirely scripted:
./scripts/parse-maintainers.pl --input=MAINTAINERS --output=MAINTAINERS --order
Requested-by: Joe Perches <joe@perches.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
They are all supposed to be sorted, but people who add new entries don't
always know the alphabet. Plus sometimes the entry names get edited,
and people don't then re-order the entry.
Let's see how painful this will be for merging purposes (the MAINTAINERS
file is often edited in various different trees), but Joe claims there's
relatively few patches in -next that touch this, and doing it just
before -rc1 is likely the best time. Fingers crossed.
This was scripted with
/scripts/parse-maintainers.pl --input=MAINTAINERS --output=MAINTAINERS
but then I also ended up manually upper-casing a few entry names that
stood out when looking at the end result.
Requested-by: Joe Perches <joe@perches.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull x86 fixes from Thomas Gleixner:
"A set of three patches to fix the fallout of the newly added split
lock detection feature.
It addressed the case where a KVM guest triggers a split lock #AC and
KVM reinjects it into the guest which is not prepared to handle it.
Add proper sanity checks which prevent the unconditional injection
into the guest and handles the #AC on the host side in the same way as
user space detections are handled. Depending on the detection mode it
either warns and disables detection for the task or kills the task if
the mode is set to fatal"
* tag 'x86-urgent-2020-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
KVM: VMX: Extend VMXs #AC interceptor to handle split lock #AC in guest
KVM: x86: Emulate split-lock access as a write in emulator
x86/split_lock: Provide handle_guest_split_lock()
Pull time(keeping) updates from Thomas Gleixner:
- Fix the time_for_children symlink in /proc/$PID/ so it properly
reflects that it part of the 'time' namespace
- Add the missing userns limit for the allowed number of time
namespaces, which was half defined but the actual array member was
not added. This went unnoticed as the array has an exessive empty
member at the end but introduced a user visible regression as the
output was corrupted.
- Prevent further silent ucount corruption by adding a BUILD_BUG_ON()
to catch half updated data.
* tag 'timers-urgent-2020-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
ucount: Make sure ucounts in /proc/sys/user don't regress again
time/namespace: Add max_time_namespaces ucount
time/namespace: Fix time_for_children symlink
Pull scheduler fixes/updates from Thomas Gleixner:
- Deduplicate the average computations in the scheduler core and the
fair class code.
- Fix a raise between runtime distribution and assignement which can
cause exceeding the quota by up to 70%.
- Prevent negative results in the imbalanace calculation
- Remove a stale warning in the workqueue code which can be triggered
since the call site was moved out of preempt disabled code. It's a
false positive.
- Deduplicate the print macros for procfs
- Add the ucmap values to the SCHED_DEBUG procfs output for completness
* tag 'sched-urgent-2020-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/debug: Add task uclamp values to SCHED_DEBUG procfs
sched/debug: Factor out printing formats into common macros
sched/debug: Remove redundant macro define
sched/core: Remove unused rq::last_load_update_tick
workqueue: Remove the warning in wq_worker_sleeping()
sched/fair: Fix negative imbalance in imbalance calculation
sched/fair: Fix race between runtime distribution and assignment
sched/fair: Align rq->avg_idle and rq->avg_scan_cost
Pull perf fixes from Thomas Gleixner:
"Three fixes/updates for perf:
- Fix the perf event cgroup tracking which tries to track the cgroup
even for disabled events.
- Add Ice Lake server support for uncore events
- Disable pagefaults when retrieving the physical address in the
sampling code"
* tag 'perf-urgent-2020-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/core: Disable page faults when getting phys address
perf/x86/intel/uncore: Add Ice Lake server uncore support
perf/cgroup: Correct indirection in perf_less_group_idx()
perf/core: Fix event cgroup tracking
Pull locking fixes from Thomas Gleixner:
"Three small fixes/updates for the locking core code:
- Plug a task struct reference leak in the percpu rswem
implementation.
- Document the refcount interaction with PID_MAX_LIMIT
- Improve the 'invalid wait context' data dump in lockdep so it
contains all information which is required to decode the problem"
* tag 'locking-urgent-2020-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
locking/lockdep: Improve 'invalid wait context' splat
locking/refcount: Document interaction with PID_MAX_LIMIT
locking/percpu-rwsem: Fix a task_struct refcount
Pull cifs fixes from Steve French:
"Ten cifs/smb fixes:
- five RDMA (smbdirect) related fixes
- add experimental support for swap over SMB3 mounts
- also a fix which improves performance of signed connections"
* tag '5.7-rc-smb3-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6:
smb3: enable swap on SMB3 mounts
smb3: change noisy error message to FYI
smb3: smbdirect support can be configured by default
cifs: smbd: Do not schedule work to send immediate packet on every receive
cifs: smbd: Properly process errors on ib_post_send
cifs: Allocate crypto structures on the fly for calculating signatures of incoming packets
cifs: smbd: Update receive credits before sending and deal with credits roll back on failure before sending
cifs: smbd: Check send queue size before posting a send
cifs: smbd: Merge code to track pending packets
cifs: ignore cached share root handle closing errors
Pull NFS client bugfix from Trond Myklebust:
"Fix an RCU read lock leakage in pnfs_alloc_ds_commits_list()"
* tag 'nfs-for-5.7-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
pNFS: Fix RCU lock leakage
Pull dma-mapping fixes from Christoph Hellwig:
- fix an integer truncation in dma_direct_get_required_mask
(Kishon Vijay Abraham)
- fix the display of dma mapping types (Grygorii Strashko)
* tag 'dma-mapping-5.7-1' of git://git.infradead.org/users/hch/dma-mapping:
dma-debug: fix displaying of dma allocation type
dma-direct: fix data truncation in dma_direct_get_required_mask()
Pull more Kbuild updates from Masahiro Yamada:
- raise minimum supported binutils version to 2.23
- remove old CONFIG_AS_* macros that we know binutils >= 2.23 supports
- move remaining CONFIG_AS_* tests to Kconfig from Makefile
- enable -Wtautological-compare warnings to catch more issues
- do not support GCC plugins for GCC <= 4.7
- fix various breakages of 'make xconfig'
- include the linker version used for linking the kernel into
LINUX_COMPILER, which is used for the banner, and also exposed to
/proc/version
- link lib-y objects to vmlinux forcibly when CONFIG_MODULES=y, which
allows us to remove the lib-ksyms.o workaround, and to solve the last
known issue of the LLVM linker
- add dummy tools in scripts/dummy-tools/ to enable all compiler tests
in Kconfig, which will be useful for distro maintainers
- support the single switch, LLVM=1 to use Clang and all LLVM utilities
instead of GCC and Binutils.
- support LLVM_IAS=1 to enable the integrated assembler, which is still
experimental
* tag 'kbuild-v5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (36 commits)
kbuild: fix comment about missing include guard detection
kbuild: support LLVM=1 to switch the default tools to Clang/LLVM
kbuild: replace AS=clang with LLVM_IAS=1
kbuild: add dummy toolchains to enable all cc-option etc. in Kconfig
kbuild: link lib-y objects to vmlinux forcibly when CONFIG_MODULES=y
MIPS: fw: arc: add __weak to prom_meminit and prom_free_prom_memory
kbuild: remove -I$(srctree)/tools/include from scripts/Makefile
kbuild: do not pass $(KBUILD_CFLAGS) to scripts/mkcompile_h
Documentation/llvm: fix the name of llvm-size
kbuild: mkcompile_h: Include $LD version in /proc/version
kconfig: qconf: Fix a few alignment issues
kconfig: qconf: remove some old bogus TODOs
kconfig: qconf: fix support for the split view mode
kconfig: qconf: fix the content of the main widget
kconfig: qconf: Change title for the item window
kconfig: qconf: clean deprecated warnings
gcc-plugins: drop support for GCC <= 4.7
kbuild: Enable -Wtautological-compare
x86: update AS_* macros to binutils >=2.23, supporting ADX and AVX2
crypto: x86 - clean up poly1305-x86_64-cryptogams.S by 'make clean'
...
I do not longer work for credativ Germany.
Please, use my private email address instead.
This is for the case when people want to CC me on
patches sent from my old business email address.
Signed-off-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Another brown paper bag moment. pnfs_alloc_ds_commits_list() is leaking
the RCU lock.
Fixes: a9901899b6 ("pNFS: Add infrastructure for cleaning up per-layout commit structures")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Two types of #AC can be generated in Intel CPUs:
1. legacy alignment check #AC
2. split lock #AC
Reflect #AC back into the guest if the guest has legacy alignment checks
enabled or if split lock detection is disabled.
If the #AC is not a legacy one and split lock detection is enabled, then
invoke handle_guest_split_lock() which will either warn and disable split
lock detection for this task or force SIGBUS on it.
[ tglx: Switch it to handle_guest_split_lock() and rename the misnamed
helper function. ]
Suggested-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Link: https://lkml.kernel.org/r/20200410115517.176308876@linutronix.de
Without at least minimal handling for split lock detection induced #AC,
VMX will just run into the same problem as the VMWare hypervisor, which
was reported by Kenneth.
It will inject the #AC blindly into the guest whether the guest is
prepared or not.
Provide a function for guest mode which acts depending on the host
SLD mode. If mode == sld_warn, treat it like user space, i.e. emit a
warning, disable SLD and mark the task accordingly. Otherwise force
SIGBUS.
[ bp: Add a !CPU_SUP_INTEL stub for handle_guest_split_lock(). ]
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Link: https://lkml.kernel.org/r/20200410115516.978037132@linutronix.de
Link: https://lkml.kernel.org/r/20200402123258.895628824@linutronix.de
Merge yet more updates from Andrew Morton:
- Almost all of the rest of MM (memcg, slab-generic, slab, pagealloc,
gup, hugetlb, pagemap, memremap)
- Various other things (hfs, ocfs2, kmod, misc, seqfile)
* akpm: (34 commits)
ipc/util.c: sysvipc_find_ipc() should increase position index
kernel/gcov/fs.c: gcov_seq_next() should increase position index
fs/seq_file.c: seq_read(): add info message about buggy .next functions
drivers/dma/tegra20-apb-dma.c: fix platform_get_irq.cocci warnings
change email address for Pali Rohár
selftests: kmod: test disabling module autoloading
selftests: kmod: fix handling test numbers above 9
docs: admin-guide: document the kernel.modprobe sysctl
fs/filesystems.c: downgrade user-reachable WARN_ONCE() to pr_warn_once()
kmod: make request_module() return an error when autoloading is disabled
mm/memremap: set caching mode for PCI P2PDMA memory to WC
mm/memory_hotplug: add pgprot_t to mhp_params
powerpc/mm: thread pgprot_t through create_section_mapping()
x86/mm: introduce __set_memory_prot()
x86/mm: thread pgprot_t through init_memory_mapping()
mm/memory_hotplug: rename mhp_restrictions to mhp_params
mm/memory_hotplug: drop the flags field from struct mhp_restrictions
mm/special: create generic fallbacks for pte_special() and pte_mkspecial()
mm/vma: introduce VM_ACCESS_FLAGS
mm/vma: define a default value for VM_DATA_DEFAULT_FLAGS
...
Pull orangefs updates from Mike Marshall:
"A fix and two cleanups.
Fix:
- Christoph Hellwig noticed that some logic I added to
orangefs_file_read_iter introduced a race condition, so he sent a
reversion patch. I had to modify his patch since reverting at this
point broke Orangefs.
Cleanups:
- Christoph Hellwig noticed that we were doing some unnecessary work
in orangefs_flush, so he sent in a patch that removed the un-needed
code.
- Al Viro told me he had trouble building Orangefs. Orangefs should
be easy to build, even for Al :-).
I looked back at the test server build notes in orangefs.txt, just
in case that's where the trouble really is, and found a couple of
typos and made a couple of clarifications"
* tag 'for-linus-5.7-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux:
orangefs: clarify build steps for test server in orangefs.txt
orangefs: don't mess with I_DIRTY_TIMES in orangefs_flush
orangefs: get rid of knob code...
Pull xtensa updates from Max Filippov:
- replace setup_irq() by request_irq()
- cosmetic fixes in xtensa Kconfig and boot/Makefile
* tag 'xtensa-20200410' of git://github.com/jcmvbkbc/linux-xtensa:
arch/xtensa: fix grammar in Kconfig help text
xtensa: remove meaningless export ccflags-y
xtensa: replace setup_irq() by request_irq()
