Delta TN48M CPLD exposes resets for the following:
* 88F7040 SoC
* 88F6820 SoC
* 98DX3265 switch MAC-s
* 88E1680 PHY-s
* 88E1512 PHY
* PoE PSE controller

Controller supports only self clearing resets.
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Link: https://lore.kernel.org/r/20220131133049.77780-5-robert.marko@sartura.hrSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Add header for the Delta TN48M CPLD provided
resets.
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Link: https://lore.kernel.org/r/20220131133049.77780-4-robert.marko@sartura.hrSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Delta TN48M switch has an onboard Lattice CPLD that is used as a GPIO
expander.

The CPLD provides 12 pins in total on the TN48M, but on more advanced
switch models it provides up to 192 pins, so the driver is extendable
to support more switches.
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Michael Walle <michael@walle.cc>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Link: https://lore.kernel.org/r/20220131133049.77780-3-robert.marko@sartura.hrSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Delta TN48M switches have a Lattice CPLD that serves
multiple purposes including being a GPIO expander.

So, lets use the simple I2C MFD driver to provide the MFD core.

Also add a virtual symbol which pulls in the simple-mfd-i2c driver and
provide a common symbol on which the subdevice drivers can depend on.
Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Link: https://lore.kernel.org/r/20220131133049.77780-2-robert.marko@sartura.hrSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Since MMC core handles runtime PM reference counting, we can avoid doing
redundant runtime PM work in the driver. That means the only thing
commit 5b4258f6 ("misc: rtsx: rts5249 support runtime PM") misses is
to always enable runtime PM, to let its parent driver enable ASPM in the
runtime idle routine.

Fixes: 7499b529 ("mmc: rtsx: Use pm_runtime_{get,put}() to handle runtime PM")
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Link: https://lore.kernel.org/r/20220216055435.2335297-1-kai.heng.feng@canonical.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Since nvmem_unregister() checks for NULL, no need to repeat in
the caller. Drop duplicate NULL checks.
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220220151527.17216-14-srinivas.kandagatla@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Since nvmem_unregister() checks for NULL, no need to repeat in
the caller. Drop duplicate NULL checks.
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220220151527.17216-13-srinivas.kandagatla@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Update the example to reflect the new API. I have chosen the brcm-nvram
driver since it seems to be simpler than the qfprom driver.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220220151527.17216-12-srinivas.kandagatla@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Since commit 795ddd18 ("nvmem: core: remove regmap dependency"),
nvmem devices do not use the regmap API. Remove references to it from
the documentation.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220220151527.17216-11-srinivas.kandagatla@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Add support for the Security Fuse Processor found on Layerscape SoCs.
This driver implements basic read access.
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220220151527.17216-10-srinivas.kandagatla@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The Security Fuse Processor provides efuses and is responsible for
reading it at SoC startup and configuring it accordingly.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220220151527.17216-9-srinivas.kandagatla@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Replace unnecessary devm_kstrdup() so to avoid redundant memory allocation.
Suggested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Xiaoke Wang <xkernel.wang@foxmail.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220220151527.17216-8-srinivas.kandagatla@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

D1 has a smaller eFuse block than some other recent SoCs, and it no
longer requires a workaround to read the eFuse data.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220220151527.17216-7-srinivas.kandagatla@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

D1 has a SID like other Allwinner SoCs, but with a unique eFuse layout.
Add a new compatible string for it.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220220151527.17216-6-srinivas.kandagatla@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch fixes below kernel doc warning,
warning: expecting prototype for qfprom_efuse_reg_write().
Prototype was for qfprom_reg_write() instead

No code changes.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220220151527.17216-5-srinivas.kandagatla@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

nvmem_unregister() frees resources and standard pattern is to allow
caller to not care if it's NULL or not. This will reduce burden on
the callers to perform this check.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220220151527.17216-4-srinivas.kandagatla@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Slightly simplify the devm_nvmem_register() by using the
devm_add_action_or_reset().
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220220151527.17216-3-srinivas.kandagatla@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

There are no users and seems no will come of the devm_nvmem_unregister().
Remove the function and remove the unused devm_nvmem_match() along with it.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220220151527.17216-2-srinivas.kandagatla@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Merge tag 'fsi-for-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/joel/fsi into char-misc-next

Joel writes:

FSI changes for v5.18

 * Improvements in SCOM and OCC drivers for error handling and retries

 * Addition of tracepoints for initialisation path

 * API for setting long running SBE FIFO operations

* tag 'fsi-for-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/joel/fsi:
  fsi: Add trace events in initialization path
  fsi: sbefifo: Implement FSI_SBEFIFO_READ_TIMEOUT_SECONDS ioctl
  fsi: sbefifo: Use specified value of start of response timeout
  fsi: occ: Improve response status checking
  fsi: scom: Remove retries in indirect scoms
  fsi: scom: Fix error handling

Add definitions for trace events to show the scanning flow.
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Link: https://lore.kernel.org/r/20220207161640.35605-1-eajames@linux.ibm.comSigned-off-by: Joel Stanley <joel@jms.id.au>

FSI_SBEFIFO_READ_TIMEOUT_SECONDS ioctl sets the read timeout (in
seconds) for the response received by sbefifo device from sbe.  The
timeout affects only the read operation on current sbefifo device fd.

Certain SBE operations can take long time to complete and the default
timeout of 10 seconds might not be sufficient to start receiving
response from SBE.  In such cases, allow the timeout to be set to the
maximum of 120 seconds.

The kernel does not contain the definition of the various SBE
operations, so we must expose an interface to userspace to set the
timeout for the given operation.
Signed-off-by: Amitay Isaacs <amitay@ozlabs.org>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Eddie James <eajames@linux.ibm.com>
Link: https://lore.kernel.org/r/20220121053816.82253-3-joel@jms.id.auSigned-off-by: Joel Stanley <joel@jms.id.au>

For some of the chip-ops where sbe needs to collect trace information,
sbe can take a long time (>30s) to respond.  Currently these chip-ops
will timeout as the start of response timeout defaults to 10s.

Instead of default value, use specified value.  The require timeout
value will be set using ioctl.
Signed-off-by: Amitay Isaacs <amitay@ozlabs.org>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Eddie James <eajames@linux.ibm.com>
Link: https://lore.kernel.org/r/20220121053816.82253-2-joel@jms.id.auSigned-off-by: Joel Stanley <joel@jms.id.au>

If the driver sequence number coincidentally equals the previous
command response sequence number, the driver may proceed with
fetching the entire buffer before the OCC has processed the current
command. To be sure the correct response is obtained, check the
command type and also retry if any of the response parameters have
changed when the rest of the buffer is fetched. Also initialize the
driver with a random sequence number in order to reduce the chances
of this happening.
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20220208152235.19686-1-eajames@linux.ibm.comSigned-off-by: Joel Stanley <joel@jms.id.au>

We need the char/misc fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Merge tag 'kbuild-fixes-v5.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - Fix the truncated path issue for HAVE_GCC_PLUGINS test in Kconfig

 - Move -Wunsligned-access to W=1 builds to avoid sprinkling warnings
   for the latest Clang

 - Fix missing fclose() in Kconfig

 - Fix Kconfig to touch dep headers correctly when KCONFIG_AUTOCONFIG is
   overridden.

* tag 'kbuild-fixes-v5.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kconfig: fix failing to generate auto.conf
  kconfig: fix missing fclose() on error paths
  Makefile.extrawarn: Move -Wunaligned-access to W=1
  kconfig: let 'shell' return enough output for deep path names

Pull irq fixes from Thomas Gleixner:
 "Interrupt chip driver fixes:

   - Don't install an hotplug notifier for GICV3-ITS on systems which do
     not need it to prevent a warning in the notifier about inconsistent
     state

   - Add the missing device tree matching for the T-HEAD PLIC variant so
     the related SoC is properly supported"

* tag 'irq-urgent-2022-02-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/sifive-plic: Add missing thead,c900-plic match string
  dt-bindings: update riscv plic compatible string
  irqchip/gic-v3-its: Skip HP notifier when no ITS is registered

Pull objtool fix from Borislav Petkov:
 "Fix a case where objtool would mistakenly warn about instructions
  being unreachable"

* tag 'objtool_urgent_for_v5.17_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/bug: Merge annotate_reachable() into _BUG_FLAGS() asm

Pull scheduler fix from Borislav Petkov:
 "Fix a NULL-ptr dereference when recalculating a sched entity's weight"

* tag 'sched_urgent_for_v5.17_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/fair: Fix fault in reweight_entity

Pull perf fix from Borislav Petkov:
 "Prevent cgroup event list corruption when switching events"

* tag 'perf_urgent_for_v5.17_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf: Fix list corruption in perf_cgroup_switch()

Pull x86 fix from Borislav Petkov:
 "Prevent softlockups when tearing down large SGX enclaves"

* tag 'x86_urgent_for_v5.17_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/sgx: Silence softlockup detection when releasing large enclaves

Pull cifs fixes from Steve French:
 "Three small smb3 reconnect fixes and an error log clarification"

* tag '5.17-rc4-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: mark sessions for reconnection in helper function
  cifs: call helper functions for marking channels for reconnect
  cifs: call cifs_reconnect when a connection is marked
  [smb3] improve error message when mount options conflict with posix

Merge tag 'irqchip-fixes-5.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent

Pull irqchip fixes from Marc Zyngier:

 - Don't register a hotplug notifier on GICv3 systems that advertise
   LPI support, but have no ITS to make use of it

 - Add missing DT matching for the thead,c900-plic variant of the
   SiFive PLIC

Link: https://lore.kernel.org/r/20220211110038.1179155-1-maz@kernel.org

Pull SCSI fixes from James Bottomley:
 "Two minor fixes in the lpfc driver. One changing the classification of
  trace messages and the other fixing a build issue when NVME_FC is
  disabled"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: lpfc: Reduce log messages seen after firmware download
  scsi: lpfc: Remove NVMe support if kernel has NVME_FC disabled

Pull char/misc driver fixes from Greg KH:
 "Here are a small number of char/misc driver fixes for 5.17-rc4 for
  reported issues. They contain:

   - phy driver fixes

   - iio driver fix

   - eeprom driver fix

   - speakup regression fix

   - fastrpc fix

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

* tag 'char-misc-5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  iio: buffer: Fix file related error handling in IIO_BUFFER_GET_FD_IOCTL
  speakup-dectlk: Restore pitch setting
  bus: mhi: pci_generic: Add mru_default for Cinterion MV31-W
  bus: mhi: pci_generic: Add mru_default for Foxconn SDX55
  eeprom: ee1004: limit i2c reads to I2C_SMBUS_BLOCK_MAX
  misc: fastrpc: avoid double fput() on failed usercopy
  phy: dphy: Correct clk_pre parameter
  phy: phy-mtk-tphy: Fix duplicated argument in phy-mtk-tphy
  phy: stm32: fix a refcount leak in stm32_usbphyc_pll_enable()
  phy: xilinx: zynqmp: Fix bus width setting for SGMII
  phy: cadence: Sierra: fix error handling bugs in probe()
  phy: ti: Fix missing sentinel for clk_div_table
  phy: broadcom: Kconfig: Fix PHY_BRCM_USB config option
  phy: usb: Leave some clocks running during suspend

Pullstaging driver fixes from Greg KH:
 "Here are two staging driver fixes for 5.17-rc4.  These are:

   - fbtft error path fix

   - vc04_services rcu dereference fix

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

* tag 'staging-5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: fbtft: Fix error path in fbtft_driver_module_init()
  staging: vc04_services: Fix RCU dereference check

Pull tty/serial fixes from Greg KH:
 "Here are four small tty/serial fixes for 5.17-rc4.  They are:

   - 8250_pericom change revert to fix a reported regression

   - two speculation fixes for vt_ioctl

   - n_tty regression fix for polling

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

* tag 'tty-5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  vt_ioctl: add array_index_nospec to VT_ACTIVATE
  vt_ioctl: fix array_index_nospec in vt_setactivate
  serial: 8250_pericom: Revert "Re-enable higher baud rates"
  n_tty: wake up poll(POLLRDNORM) on receiving data

Pull USB fixes from Greg KH:
 "Here are some small USB driver fixes for 5.17-rc4 that resolve some
  reported issues and add new device ids:

   - usb-serial new device ids

   - ulpi cleanup fixes

   - f_fs use-after-free fix

   - dwc3 driver fixes

   - ax88179_178a usb network driver fix

   - usb gadget fixes

  There is a revert at the end of this series to resolve a build problem
  that 0-day found yesterday. Most of these have been in linux-next,
  except for the last few, and all have now passed 0-day tests"

* tag 'usb-5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  Revert "usb: dwc2: drd: fix soft connect when gadget is unconfigured"
  usb: dwc2: drd: fix soft connect when gadget is unconfigured
  usb: gadget: rndis: check size of RNDIS_MSG_SET command
  USB: gadget: validate interface OS descriptor requests
  usb: core: Unregister device on component_add() failure
  net: usb: ax88179_178a: Fix out-of-bounds accesses in RX fixup
  usb: dwc3: gadget: Prevent core from processing stale TRBs
  USB: serial: cp210x: add CPI Bulk Coin Recycler id
  USB: serial: cp210x: add NCR Retail IO box id
  USB: serial: ftdi_sio: add support for Brainboxes US-159/235/320
  usb: gadget: f_uac2: Define specific wTerminalType
  usb: gadget: udc: renesas_usb3: Fix host to USB_ROLE_NONE transition
  usb: raw-gadget: fix handling of dual-direction-capable endpoints
  usb: usb251xb: add boost-up property support
  usb: ulpi: Call of_node_put correctly
  usb: ulpi: Move of_node_put to ulpi_dev_release
  USB: serial: option: add ZTE MF286D modem
  USB: serial: ch341: add support for GW Instek USB2.0-Serial devices
  usb: f_fs: Fix use-after-free for epfile
  usb: dwc3: xilinx: fix uninitialized return value

Pull s390 updates from Vasily Gorbik:
 "Maintainers and reviewers changes:

    - Add Alexander Gordeev as maintainer for s390.

    - Christian Borntraeger will focus on s390 KVM maintainership and
      stays as s390 reviewer.

  Fixes:

   - Fix clang build of modules loader KUnit test.

   - Fix kernel panic in CIO code on FCES path-event when no driver is
     attached to a device or the driver does not provide the path_event
     function"

* tag 's390-5.17-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/cio: verify the driver availability for path_event call
  s390/module: fix building test_modules_helpers.o with clang
  MAINTAINERS: downgrade myself to Reviewer for s390
  MAINTAINERS: add Alexander Gordeev as maintainer for s390

Pull xen fixes from Juergen Gross:

 - Two small cleanups

 - Another fix for addressing the EFI framebuffer above 4GB when running
   as Xen dom0

 - A patch to let Xen guests use reserved bits in MSI- and IO-APIC-
   registers for extended APIC-IDs the same way KVM guests are doing it
   already

* tag 'for-linus-5.17a-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen/pci: Make use of the helper macro LIST_HEAD()
  xen/x2apic: Fix inconsistent indenting
  xen/x86: detect support for extended destination ID
  xen/x86: obtain full video frame buffer address for Dom0 also under EFI