Add /proc/bootconfig which shows the list of key-value pairs
in boot config. Since after boot, all boot configs and tree
are removed, this interface just keep a copy of key-value
pairs in text.

Link: http://lkml.kernel.org/r/157867225967.17873.12155805787236073787.stgit@devnote2



Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

Add a bootconfig test script to ensure the tool and
boot config parser are working correctly.

Link: http://lkml.kernel.org/r/157867224728.17873.18114241801246589416.stgit@devnote2



Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

Add "bootconfig" command which operates the bootconfig
config-data on initrd image.

User can add/delete/verify the boot config on initrd
image using this command.

e.g.
Add a boot config to initrd image
 # bootconfig -a myboot.conf /boot/initrd.img

Remove it.
 # bootconfig -d /boot/initrd.img

Or verify (and show) it.
 # bootconfig /boot/initrd.img

Link: http://lkml.kernel.org/r/157867223582.17873.14342161849213219982.stgit@devnote2



Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
[ Removed extra blank line at end of bootconfig.c ]
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

Load the extended boot config data from the tail of initrd
image. If there is an SKC data there, it has
[(u32)size][(u32)checksum] header (in really, this is a
footer) at the end of initrd. If the checksum (simple sum
of bytes) is match, this starts parsing it from there.

Link: http://lkml.kernel.org/r/157867222435.17873.9936667353335606867.stgit@devnote2



Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

Extra Boot Config (XBC) allows admin to pass a tree-structured
boot configuration file when boot up the kernel. This extends
the kernel command line in an efficient way.

Boot config will contain some key-value commands, e.g.

key.word = value1
another.key.word = value2

It can fold same keys with braces, also you can write array
data. For example,

key {
   word1 {
      setting1 = data
      setting2
   }
   word2.array = "val1", "val2"
}

User can access these key-value pair and tree structure via
SKC APIs.

Link: http://lkml.kernel.org/r/157867221257.17873.1775090991929862549.stgit@devnote2



Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

As there's two struct ring_buffers in the kernel, it causes some confusion.
The other one being the perf ring buffer. It was agreed upon that as neither
of the ring buffers are generic enough to be used globally, they should be
renamed as:

   perf's ring_buffer -> perf_buffer
   ftrace's ring_buffer -> trace_buffer

This implements the changes to the ring buffer that ftrace uses.

Link: https://lore.kernel.org/r/20191213140531.116b3200@gandalf.local.home



Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

As we are working to remove the generic "ring_buffer" name that is used by
both tracing and perf, the ring_buffer name for tracing will be renamed to
trace_buffer, and perf's ring buffer will be renamed to perf_buffer.

As there already exists a trace_buffer that is used by the trace_arrays, it
needs to be first renamed to array_buffer.

Link: https://lore.kernel.org/r/20191213153553.GE20583@krava



Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

eBPF requires needing to know the size of the perf ring buffer structure.
But it unfortunately has the same name as the generic ring buffer used by
tracing and oprofile. To make it less ambiguous, rename the perf ring buffer
structure to "perf_buffer".

As other parts of the ring buffer code has "perf_" as the prefix, it only
makes sense to give the ring buffer the "perf_" prefix as well.

Link: https://lore.kernel.org/r/20191213153553.GE20583@krava


Acked-by: Peter Zijlstra <peterz@infradead.org>
Suggested-by: Alexei Starovoitov <alexei.starovoitov@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

Pull RISC-V fixes from Paul Walmsley:
 "Two fixes for RISC-V:

   - Clear FP registers during boot when FP support is present, rather
     than when they aren't present

   - Move the header files associated with the SiFive L2 cache
     controller to drivers/soc (where the code was recently moved)"

* tag 'riscv/for-v5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: Fixup obvious bug for fp-regs reset
  riscv: move sifive_l2_cache.h to include/soc

CSR_MISA is defined in Privileged Architectures' spec: 3.1.1 Machine
ISA Register misa. Every bit:1 indicate a feature, so we should beqz
reset_done when there is no F/D bit in csr_misa register.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
[paul.walmsley@sifive.com: fix typo in commit message]
Fixes: 9e806356

 ("riscv: clear the instruction cache and all registers when booting")
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>

The commit 9209fb51

 ("riscv: move sifive_l2_cache.c to drivers/soc")
moves the sifive L2 cache driver to driver/soc. It did not move the
header file along with the driver. Therefore this patch moves the header
file to driver/soc

Signed-off-by: Yash Shah <yash.shah@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
[paul.walmsley@sifive.com: updated to fix the include guard]
Fixes: 9209fb51

 ("riscv: move sifive_l2_cache.c to drivers/soc")
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>

Pull iommu fixes from Joerg Roedel:

 - Two fixes for VT-d and generic IOMMU code to fix teardown on error
   handling code paths.

 - Patch for the Intel VT-d driver to fix handling of non-PCI devices

 - Fix W=1 compile warning in dma-iommu code

* tag 'iommu-fixes-v5.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/dma: fix variable 'cookie' set but not used
  iommu/vt-d: Unlink device if failed to add to group
  iommu: Remove device link to group on failure
  iommu/vt-d: Fix adding non-PCI devices to Intel IOMMU

Pull i2c fixes from Wolfram Sang:
 "Two driver bugfixes, a documentation fix, and a removal of a spec
  violation for the bus recovery algorithm in the core"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: fix bus recovery stop mode timing
  i2c: bcm2835: Store pointer to bus clock
  dt-bindings: i2c: at91: fix i2c-sda-hold-time-ns documentation for sam9x60
  i2c: at91: fix clk_offset for sam9x60

Pull thread fixes from Christian Brauner:
 "This contains a series of patches to fix CLONE_SETTLS when used with
  clone3().

  The clone3() syscall passes the tls argument through struct clone_args
  instead of a register. This means, all architectures that do not
  implement copy_thread_tls() but still support CLONE_SETTLS via
  copy_thread() expecting the tls to be located in a register argument
  based on clone() are currently unfortunately broken. Their tls value
  will be garbage.

  The patch series fixes this on all architectures that currently define
  __ARCH_WANT_SYS_CLONE3. It also adds a compile-time check to ensure
  that any architecture that enables clone3() in the future is forced to
  also implement copy_thread_tls().

  My ultimate goal is to get rid of the copy_thread()/copy_thread_tls()
  split and just have copy_thread_tls() at some point in the not too
  distant future (Maybe even renaming copy_thread_tls() back to simply
  copy_thread() once the old function is ripped from all arches). This
  is dependent now on all arches supporting clone3().

  While all relevant arches do that now there are still four missing:
  ia64, m68k, sh and sparc. They have the system call reserved, but not
  implemented. Once they all implement clone3() we can get rid of
  ARCH_WANT_SYS_CLONE3 and HAVE_COPY_THREAD_TLS.

  This series also includes a minor fix for the arm64 uapi headers which
  caused __NR_clone3 to be missing from the exported user headers.

  Unfortunately the series came in a little late especially given that
  it touches a range of architectures. Due to the holidays not all arch
  maintainers responded in time probably due to their backlog. Will and
  Arnd have thankfully acked the arm specific changes.

  Given that the changes are straightforward and rather minimal combined
  with the fact the that clone3() with CLONE_SETTLS is broken I decided
  to send them post rc3 nonetheless"

* tag 'clone3-tls-v5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
  um: Implement copy_thread_tls
  clone3: ensure copy_thread_tls is implemented
  xtensa: Implement copy_thread_tls
  riscv: Implement copy_thread_tls
  parisc: Implement copy_thread_tls
  arm: Implement copy_thread_tls
  arm64: Implement copy_thread_tls
  arm64: Move __ARCH_WANT_SYS_CLONE3 definition to uapi headers

Pull HID fix from Jiri Kosina:
 "A regression fix for EPOLLOUT handling in hidraw and uhid"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
  HID: hidraw, uhid: Always report EPOLLOUT

Pull USB/PHY fixes from Greg KH:
 "Here are a number of USB and PHY driver fixes for 5.5-rc6

  Nothing all that unusual, just the a bunch of small fixes for a lot of
  different reported issues. The PHY driver fixes are in here as they
  interacted with the usb drivers.

  Full details of the patches are in the shortlog, and all of these have
  been in linux-next with no reported issues"

* tag 'usb-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (24 commits)
  usb: missing parentheses in USE_NEW_SCHEME
  usb: ohci-da8xx: ensure error return on variable error is set
  usb: musb: Disable pullup at init
  usb: musb: fix idling for suspend after disconnect interrupt
  usb: typec: ucsi: Fix the notification bit offsets
  USB: Fix: Don't skip endpoint descriptors with maxpacket=0
  USB-PD tcpm: bad warning+size, PPS adapters
  phy/rockchip: inno-hdmi: round clock rate down to closest 1000 Hz
  usb: chipidea: host: Disable port power only if previously enabled
  usb: cdns3: should not use the same dev_id for shared interrupt handler
  usb: dwc3: gadget: Fix request complete check
  usb: musb: dma: Correct parameter passed to IRQ handler
  usb: musb: jz4740: Silence error if code is -EPROBE_DEFER
  usb: udc: tegra: select USB_ROLE_SWITCH
  USB: core: fix check for duplicate endpoints
  phy: cpcap-usb: Drop extra write to usb2 register
  phy: cpcap-usb: Improve host vs docked mode detection
  phy: cpcap-usb: Prevent USB line glitches from waking up modem
  phy: mapphone-mdm6600: Fix uninitialized status value regression
  phy: cpcap-usb: Fix flakey host idling and enumerating of devices
  ...

Pull char/misc fix from Greg KH:
 "Here is a single fix, for the chrdev core, for 5.5-rc6

  There's been a long-standing race condition triggered by syzbot, and
  occasionally real people, in the chrdev open() path. Will finally took
  the time to track it down and fix it for real before the holidays.

  Here's that one patch, it's been in linux-next for a while with no
  reported issues and it does fix the reported problem"

* tag 'char-misc-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  chardev: Avoid potential use-after-free in 'chrdev_open()'

Pull staging fixes from Greg KH:
 "Here are some small staging driver fixes for 5.5-rc6.

  Nothing major here, just some small fixes for a comedi driver, the
  vt6656 driver, and a new device id for the rtl8188eu driver.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'staging-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: rtl8188eu: Add device code for TP-Link TL-WN727N v5.21
  staging: comedi: adv_pci1710: fix AI channels 16-31 for PCI-1713
  staging: vt6656: set usb_set_intfdata on driver fail.
  staging: vt6656: remove bool from vnt_radio_power_on ret
  staging: vt6656: limit reg output to block size
  staging: vt6656: correct return of vnt_init_registers.
  staging: vt6656: Fix non zero logical return of, usb_control_msg

Pull tty/serial fixes from Greg KH:
 "Here are two tty/serial driver fixes for 5.5-rc6.

  The first fixes a much much reported issue with a previous tty port
  link patch that is in your tree, and the second fixes a problem where
  the serdev driver would claim ACPI devices that it shouldn't be
  claiming.

  Both have been in linux-next for a while with no reported issues"

* tag 'tty-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  serdev: Don't claim unsupported ACPI serial devices
  tty: always relink the port

Pull block fixes from Jens Axboe:
 "A few fixes that should go into this round.

  This pull request contains two NVMe fixes via Keith, removal of a dead
  function, and a fix for the bio op for read truncates (Ming)"

* tag 'block-5.5-2020-01-10' of git://git.kernel.dk/linux-block:
  nvmet: fix per feat data len for get_feature
  nvme: Translate more status codes to blk_status_t
  fs: move guard_bio_eod() after bio_set_op_attrs
  block: remove unused mp_bvec_last_segment

Pull io_uring fix from Jens Axboe:
 "Single fix for this series, fixing a regression with the short read
  handling.

  This just removes it, as it cannot safely be done for all cases"

* tag 'io_uring-5.5-2020-01-10' of git://git.kernel.dk/linux-block:
  io_uring: remove punt of short reads to async context

Pull MTD fixes from Miquel Raynal:
 "MTD:
   - sm_ftl: Fix NULL pointer warning.

  Raw NAND:
   - Cadence: fix compile testing.
   - STM32: Avoid locking.

  Onenand:
   - Fix several sparse/build warnings.

  SPI-NOR:
   - Add a flag to fix interaction with Micron parts"

* tag 'mtd/fixes-for-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
  mtd: spi-nor: Fix the writing of the Status Register on micron flashes
  mtd: sm_ftl: fix NULL pointer warning
  mtd: onenand: omap2: Pass correct flags for prep_dma_memcpy
  mtd: onenand: samsung: Fix iomem access with regular memcpy
  mtd: onenand: omap2: Fix errors in style
  mtd: cadence: Fix cast to pointer from integer of different size warning
  mtd: rawnand: stm32_fmc2: avoid to lock the CPU bus

Pull sound fixes from Takashi Iwai:
 "A few piled ASoC fixes and usual HD-audio and USB-audio fixups. Some
  of them are for ASoC core error-handling"

* tag 'sound-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda: enable regmap internal locking
  ALSA: hda/realtek - Add quirk for the bass speaker on Lenovo Yoga X1 7th gen
  ALSA: hda/realtek - Set EAPD control to default for ALC222
  ALSA: usb-audio: Apply the sample rate quirk for Bose Companion 5
  ALSA: hda/realtek - Add new codec supported for ALCS1200A
  ASoC: Intel: boards: Fix compile-testing RT1011/RT5682
  ASoC: SOF: imx8: Fix dsp_box offset
  ASoC: topology: Prevent use-after-free in snd_soc_get_pcm_runtime()
  ASoC: fsl_audmix: add missed pm_runtime_disable
  ASoC: stm32: spdifrx: fix input pin state management
  ASoC: stm32: spdifrx: fix race condition in irq handler
  ASoC: stm32: spdifrx: fix inconsistent lock state
  ASoC: core: Fix access to uninitialized list heads
  ASoC: soc-core: Set dpcm_playback / dpcm_capture
  ASoC: SOF: imx8: fix memory allocation failure check on priv->pd_dev
  ASoC: SOF: Intel: hda: hda-dai: fix oops on hda_link .hw_free
  ASoC: SOF: fix fault at driver unload after failed probe

Pull thermal fix from Daniel Lezcano:
 "Fix backward compatibility with old DTBs on QCOM tsens (Amit
  Kucheria)"

* tag 'thermal-v5.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux:
  drivers: thermal: tsens: Work with old DTBs

Pull power management fixes from Rafael Wysocki:
 "Prevent the cpufreq-dt driver from probing Tegra20/30 (Dmitry
  Osipenko) and prevent the Intel RAPL power capping driver from
  crashing during CPU initialization due to a NULL pointer dereference
  if the processor model in use is not known to it (Harry Pan)"

* tag 'pm-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  powercap: intel_rapl: add NULL pointer check to rapl_mmio_cpu_online()
  cpufreq: dt-platdev: Blacklist NVIDIA Tegra20 and Tegra30 SoCs

The existing implementation for the get_feature admin-cmd does not
use per-feature data len. This patch introduces a new helper function
nvmet_feat_data_len(), which is used to calculate per feature data len.
Right now we only set data len for fid 0x81 (NVME_FEAT_HOST_ID).

Fixes: commit e9061c39

 ("nvmet: Remove the data_len field from the nvmet_req struct")

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Amit Engel <amit.engel@dell.com>
[endiness, naming, and kernel style fixes]
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

Decode interrupted command and not ready namespace nvme status codes to
BLK_STS_TARGET. These are not generic IO errors and should use a non-path
specific error so that it can use the non-failover retry path.

Reported-by: John Meneghini <John.Meneghini@netapp.com>
Cc: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

hidraw and uhid device nodes are always available for writing so we should
always report EPOLLOUT and EPOLLWRNORM bits, not only in the cases when
there is nothing to read.

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Fixes: be54e746 ("HID: uhid: Fix returning EPOLLOUT from uhid_char_poll")
Fixes: 9f3b61dc

 ("HID: hidraw: Fix returning EPOLLOUT from hidraw_poll")
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

* powercap:
  powercap: intel_rapl: add NULL pointer check to rapl_mmio_cpu_online()

Pull pstore fix from Kees Cook:
 "Cengiz Can forwarded a Coverity report about more problems with a rare
  pstore initialization error path, so the allocation lifetime was
  rearranged to avoid needing to share the kfree() responsibilities
  between caller and callee"

* tag 'pstore-v5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  pstore/ram: Regularize prz label allocation lifetime

Pull drm fixes from Dave Airlie:
 "Pre-LCA pull request I'm not sure how things will look next week,
  myself and Daniel are at LCA and I'm speaking quite late, so if I get
  my talk finished I'll probably process fixes.

  This week has a bunch of i915 fixes, some amdgpu fixes, one sun4i, one
  core MST, and one core fb_helper fix. More details below:

  core:
   - mst Fix NO_STOP_BIT bit offset (Wayne)

  fb_helper:
   - fb_helper: Fix bits_per_pixel param set behavior to round up
     (Geert)

  sun4i:
   - Fix RGB_DIV clock min divider on old hardware (Chen-Yu)

  amdgpu:
   - Stability fix for raven
   - Reduce pixel encoding to if max clock is exceeded on HDMI to allow
     additional high res modes
   - enable DRIVER_SYNCOBJ_TIMELINE for amdgpu

  i915:
   - Fix GitLab issue #446 causing GPU hangs: Do not restore invalid RS
     state
   - Fix GitLab issue #846: Restore coarse power gating that was
     disabled by initial RC66 context corruption security fixes.
   - Revert f6ec9483 ("drm/i915: extend audio CDCLK>=2*BCLK
     constraint to more platforms") to avoid screen flicker
   - Fix to fill in unitialized uabi_instance in virtual engine uAPI
   - Add two missing W/As for ICL and EHL"

* tag 'drm-fixes-2020-01-10' of git://anongit.freedesktop.org/drm/drm:
  drm/amdgpu: add DRIVER_SYNCOBJ_TIMELINE to amdgpu
  drm/amd/display: Reduce HDMI pixel encoding if max clock is exceeded
  Revert "drm/amdgpu: Set no-retry as default."
  drm/fb-helper: Round up bits_per_pixel if possible
  drm/sun4i: tcon: Set RGB DCLK min. divider based on hardware model
  drm/i915/dp: Disable Port sync mode correctly on teardown
  drm/i915: Add Wa_1407352427:icl,ehl
  drm/i915: Add Wa_1408615072 and Wa_1407596294 to icl,ehl
  drm/i915/gt: Restore coarse power gating
  drm/i915/gt: Do not restore invalid RS state
  drm/i915: Limit audio CDCLK>=2*BCLK constraint back to GLK only
  drm/i915/gt: Mark up virtual engine uabi_instance
  drm/dp_mst: correct the shifting in DP_REMOTE_I2C_READ

Pull rdma fixes from Jason Gunthorpe:
 "First RDMA subsystem updates for 5.5-rc. A very small set of fixes,
  most people seem to still be recovering from December!

  Five small driver fixes:

   - Fix error flow with MR allocation in bnxt_re

   - An errata work around for bnxt_re

   - Misuse of the workqueue API in hfi1

   - Protocol error in hfi1

   - Regression in 5.5 related to the mmap rework with i40iw"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  i40iw: Remove setting of VMA private data and use rdma_user_mmap_io
  IB/hfi1: Adjust flow PSN with the correct resync_psn
  IB/hfi1: Don't cancel unused work item
  RDMA/bnxt_re: Fix Send Work Entry state check while polling completions
  RDMA/bnxt_re: Avoid freeing MR resources if dereg fails

Merge tag 'drm-intel-fixes-2020-01-09-1' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

- Fix GitLab issue #446 causing GPU hangs: Do not restore invalid RS state
- Fix GitLab issue #846: Restore coarse power gating that was disabled
  by initial RC66 context corruption security fixes.
- Revert f6ec9483

 ("drm/i915: extend audio CDCLK>=2*BCLK constraint to more platforms")
  to avoid screen flicker
- Fix to fill in unitialized uabi_instance in virtual engine uAPI
- Add two missing W/As for ICL and EHL

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200109133458.GA15558@jlahtine-desk.ger.corp.intel.com

Pull GPIO fixes from Linus Walleij:
 "Here is a host of GPIO fixes for the v5.5 series. The ACPI fix is
  especially important, see summary below and in the commit for details:

   - Select GPIOLIB_IRQCHIP on the max77620 GPIO expander

   - Fix context restore in the Zynq driver

   - Create a new ACPI quirk handler for disabling wakeups on
     problematic hardware.

   - Fix a coding style issue on the mockup device"

* tag 'gpio-v5.5-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpiolib: acpi: Add honor_wakeup module-option + quirk mechanism
  gpiolib: acpi: Turn dmi_system_id table into a generic quirk table
  gpio: zynq: Fix for bug in zynq_gpio_restore_context API
  gpio: max77620: Add missing dependency on GPIOLIB_IRQCHIP
  gpio: mockup: fix coding style

Pull pin control fixes from Linus Walleij:
 "Two fixes for pin control, not much to say about it, it's just regular
  driver fixes:

   - Fix erroneous shift in the Meson driver

   - Make Lochnagar select the GPIOLIB Kconfig symbol"

* tag 'pinctrl-v5.5-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: meson: Fix wrong shift value when get drive-strength
  pinctrl: lochnagar: select GPIOLIB

Pull input fixes from Dmitry Torokhov:
 "Just a few small fixups here"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: imx_sc_key - only take the valid data from SCU firmware as key state
  Input: add safety guards to input_set_keycode()
  Input: input_event - fix struct padding on sparc64
  Input: uinput - always report EPOLLOUT

The I2C specification states that tsu:sto for standard mode timing must
be at minimum 4us. Pictographically, this is:

SCL: ____/~~~~~~~~~
SDA: _________/~~~~
       ->|    |<- 4us minimum

We are currently waiting 2.5us between asserting SCL and SDA, which is
in violation of the standard. Adjust the timings to ensure that we meet
what is stipulated as the minimum timings to ensure that all devices
correctly interpret the STOP bus transition.

This is more important than trying to generate a square wave with even
duty cycle.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

Micron flashes do not support 16 bit writes on the Status Register.
According to micron datasheets, when using the Write Status Register
(01h) command, the chip select should be driven LOW and held LOW until
the eighth bit of the last data byte has been latched in, after which
it must be driven HIGH. If CS is not driven HIGH, the command is not
executed, flag status register error bits are not set, and the write enable
latch remains set to 1. This fixes the lock operations on micron flashes.

Reported-by: John Garry <john.garry@huawei.com>
Fixes: 39d1e334

 ("mtd: spi-nor: Fix clearing of QE bit on lock()/unlock()")
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Tested-by: John Garry <john.garry@huawei.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

With gcc -O3, we get a new warning:

In file included from arch/arm64/include/asm/processor.h:28,
                 from drivers/mtd/sm_ftl.c:8:
In function 'memset',
    inlined from 'sm_read_sector.constprop' at drivers/mtd/sm_ftl.c:250:3:
include/linux/string.h:411:9: error: argument 1 null where non-null expected [-Werror=nonnull]
  return __builtin_memset(p, c, size);

>From all I can tell, this cannot happen (the function is called
either with a NULL buffer or with a -1 block number but not both),
but adding a check makes it more robust and avoids the warning.

Fixes: mmtom ("init/Kconfig: enable -O3 for all arches")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>