Sudeep Holla authored May 30, 2019 and Douglas Raillard committed Jul 03, 2019

Accessing the NOR flash memory from the kernel will disrupt CPU sleep/
idles states and CPU hotplugging. We need to disable this DT node by
default. Setups that want to access the flash can modify this entry to
enable the flash again but also ensuring to disable CPU idle states and
CPU hotplug.

The platform firmware assumes the flash is always in read mode while
Linux kernel driver leaves NOR flash in "read id" mode after
initialization. If it gets used actively, it can be in some other state.

So far we had not seen this issue as the NOR flash drivers in kernel
were not enabled by default. However it was enable in multi_v7 config by
Commit 5f068190 ("ARM: multi_v7_defconfig: Enable support for CFI NOR FLASH")

So, let's mark the NOR flash disabled so that the platform can boot
again. This based on:
Commit 980bbff0 ("ARM64: juno: disable NOR flash node by default")

Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

Paul E. McKenney authored May 12, 2015 and Douglas Raillard committed Jul 03, 2019

This commit removes the open-coded CPU-offline notification with new
common code.  In particular, this change avoids calling scheduler code
using RCU from an offline CPU that RCU is ignoring.  This is a minimal
change.  A more intrusive change might invoke the cpu_check_up_prepare()
and cpu_set_state_online() functions at CPU-online time, which would
allow onlining throw an error if the CPU did not go offline properly.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Russell King <linux@arm.linux.org.uk>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>

John Stultz authored May 16, 2018 and Douglas Raillard committed Jul 03, 2019

Signed-off-by: John Stultz <john.stultz@linaro.org>

Chen Feng authored Feb 06, 2017 and Douglas Raillard committed Jul 03, 2019

Signed-off-by: Chen Feng <puck.chen@hisilicon.com>

Chen Jun authored Feb 06, 2017 and Douglas Raillard committed Jul 03, 2019

Add "hisilicon,hi3660-reboot" node for hi3660.

Eventually when we've transitioned to UEFI this can be dropped.
As we can then use syscon-reboot-mode.

Signed-off-by: Chen Feng <puck.chen@hisilicon.com>
Signed-off-by: Chen Jun <chenjun14@huawei.com>

Valentin Schneider authored Feb 19, 2019 and Douglas Raillard committed Jul 03, 2019

Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>

Yu Chen authored Apr 20, 2019 and Douglas Raillard committed Jul 03, 2019

This patch adds support for usb on Hikey960.

Cc: Chunfeng Yun <chunfeng.yun@mediatek.com>
Cc: Wei Xu <xuwei5@hisilicon.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: John Stultz <john.stultz@linaro.org>
Cc: Binghui Wang <wangbinghui@hisilicon.com>
Signed-off-by: Yu Chen <chenyu56@huawei.com>

Yu Chen authored Apr 20, 2019 and Douglas Raillard committed Jul 03, 2019

Currently the "match_existing_only" of usb_gadget_driver in configfs is
set to one which is not flexible.
Dwc3 udc will be removed when usb core switch to host mode. This causes
failure of writing name of dwc3 udc to configfs's UDC attribuite.
To fix this we need to add a way to change the config of
"match_existing_only".
There are systems like Android do not support udev, so adding
"match_existing_only" attribute to allow configuration by user is cost little.
This patch adds a configfs attribuite for controling match_existing_only
which allow user to config "match_existing_only".

Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Felipe Balbi <balbi@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Binghui Wang <wangbinghui@hisilicon.com>
Signed-off-by: Yu Chen <chenyu56@huawei.com>

Yu Chen authored Apr 20, 2019 and Douglas Raillard committed Jul 03, 2019

This driver handles usb hub power on and typeC port event of HiKey960 board:
1)DP&DM switching between usb hub and typeC port base on typeC port
state
2)Control power of usb hub on Hikey960
3)Control vbus of typeC port

Cc: Chunfeng Yun <chunfeng.yun@mediatek.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Binghui Wang <wangbinghui@hisilicon.com>
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Yu Chen <chenyu56@huawei.com>

Yu Chen authored Apr 20, 2019 and Douglas Raillard committed Jul 03, 2019

The Type-C drivers use USB role switch API to inform the
system about the negotiated data role, so registering a role
switch in the DRD code in order to support platforms with
USB Type-C connectors.

Cc: Jun Li <lijun.kernel@gmail.com>
Cc: Valentin Schneider <valentin.schneider@arm.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Felipe Balbi <balbi@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Suggested-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Yu Chen <chenyu56@huawei.com>

Yu Chen authored Apr 20, 2019 and Douglas Raillard committed Jul 03, 2019

This patch adds notifier for drivers want to be informed of the usb role
switch.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: John Stultz <john.stultz@linaro.org>
Suggested-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Yu Chen <chenyu56@huawei.com>

Yu Chen authored Apr 20, 2019 and Douglas Raillard committed Jul 03, 2019

This patch adds stubs for the exiting functions while
CONFIG_USB_ROLE_SWITCH does not enabled.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: John Stultz <john.stultz@linaro.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Yu Chen <chenyu56@huawei.com>

Yu Chen authored Apr 20, 2019 and Douglas Raillard committed Jul 03, 2019

It needs more time for the device controller to clear the CmdAct of
DEPCMD on Hisilicon Kirin Soc.

Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Felipe Balbi <balbi@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Binghui Wang <wangbinghui@hisilicon.com>
Signed-off-by: Yu Chen <chenyu56@huawei.com>

Yu Chen authored Apr 20, 2019 and Douglas Raillard committed Jul 03, 2019

A GCTL soft reset should be executed when switch mode for dwc3 core
of Hisilicon Kirin Soc.

Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Felipe Balbi <balbi@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Binghui Wang <wangbinghui@hisilicon.com>
Signed-off-by: Yu Chen <chenyu56@huawei.com>

Yu Chen authored Apr 20, 2019 and Douglas Raillard committed Jul 03, 2019

SPLIT_BOUNDARY_DISABLE should be set for DesignWare USB3 DRD Core
of Hisilicon Kirin Soc when dwc3 core act as host.

Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Felipe Balbi <balbi@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Binghui Wang <wangbinghui@hisilicon.com>
Signed-off-by: Yu Chen <chenyu56@huawei.com>

Yu Chen authored Apr 20, 2019 and Douglas Raillard committed Jul 03, 2019

This patch adds support for the poweron and shutdown of dwc3 core
on Hisilicon Soc Platform.

Cc: Felipe Balbi <balbi@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: John Stultz <john.stultz@linaro.org>
Signed-off-by: Yu Chen <chenyu56@huawei.com>

Yu Chen authored Apr 20, 2019 and Douglas Raillard committed Jul 03, 2019

dt-bindings: misc: Add bindings for HiSilicon usb hub and data role switch functionality on HiKey960

This patch adds binding documentation to support usb hub and usb
data role switch of Hisilicon HiKey960 Board.

Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Binghui Wang <wangbinghui@hisilicon.com>
Signed-off-by: Yu Chen <chenyu56@huawei.com>

* acpica:
  ACPICA: Clear status of GPEs on first direct enable

* acpi-osl:
  ACPI: OSL: Make a W=1 kernel-doc warning go away

* acpi-tables:
  ACPI: configfs: Resolve objects on host-directed table loads
  ACPI: tables: Allow BGRT to be overridden

* acpi-misc:
  ACPI: Make AC and battery drivers available on !X86

* acpi-tools:
  ACPI: tools: Exclude tools/* from .gitignore patterns

* devprop:
  device property: Add helpers to count items in an array
  platform/x86: intel_cht_int33fe: Replacing the old connections with references
  platform/x86: intel_cht_int33fe: Supply fwnodes for the external dependencies
  platform/x86: intel_cht_int33fe: Provide fwnode for the USB connector
  platform/x86: intel_cht_int33fe: Provide software nodes for the devices
  platform/x86: intel_cht_int33fe: Remove unused fusb302 device property
  platform/x86: intel_cht_int33fe: Register max17047 in its own function
  usb: typec: Registering real device entries for the muxes
  device connection: Find connections also by checking the references
  device property: Introduce fwnode_find_reference()
  ACPI / property: Don't limit named child node matching to data nodes
  driver core: Add helper device_find_child_by_name()
  software node: Add software_node_get_reference_args()
  software node: Use kobject name when finding child nodes by name
  software node: Add support for static node descriptors
  software node: Simplify software_node_release() function
  software node: Allow node creation without properties

* pm-cpufreq:
  cpufreq: Avoid calling cpufreq_verify_current_freq() from handle_update()
  cpufreq: Consolidate cpufreq_update_current_freq() and __cpufreq_get()
  cpufreq: Don't skip frequency validation for has_target() drivers
  cpufreq: Use has_target() instead of !setpolicy
  cpufreq: Remove redundant !setpolicy check
  cpufreq: Move the IS_ENABLED(CPU_THERMAL) macro into a stub
  cpufreq: s5pv210: Don't flood kernel log after cpufreq change
  cpufreq: pcc-cpufreq: Fail initialization if driver cannot be registered
  cpufreq: add driver for Raspberry Pi
  cpufreq: Switch imx7d to imx-cpufreq-dt for speed grading
  cpufreq: imx-cpufreq-dt: Remove global platform match list
  cpufreq: brcmstb-avs-cpufreq: Fix types for voltage/frequency
  cpufreq: brcmstb-avs-cpufreq: Fix initial command check
  cpufreq: armada-37xx: Remove set but not used variable 'freq'
  cpufreq: imx-cpufreq-dt: Fix no OPPs available on unfused parts
  dt-bindings: imx-cpufreq-dt: Document opp-supported-hw usage
  cpufreq: Add imx-cpufreq-dt driver

* pm-opp:
  opp: Don't use IS_ERR on invalid supplies
  opp: Make dev_pm_opp_set_rate() handle freq = 0 to drop performance votes
  opp: Don't overwrite rounded clk rate
  opp: Allocate genpd_virt_devs from dev_pm_opp_attach_genpd()
  opp: Attach genpds to devices from within OPP core

* powercap:
  powercap/intel_rapl: add support for ICX-D
  powercap/intel_rapl: add support for ICX
  powercap/intel_rapl: add support for IceLake desktop

* pm-misc:
  PM / clk: Remove error message on out-of-memory condition
  drivers: base: power: clock_ops: Use of_clk_get_parent_count()

* pm-avs:
  power: avs: smartreflex: no need to check return value of debugfs_create functions

* pm-tools:
  cpupower : frequency-set -r option misses the last cpu in related cpu list
  cpupower: correct spelling of interval
  Add README and update pm-graph and sleepgraph docs
  Update to pm-graph 5.4
  Update to pm-graph 5.3

* acpi-pm:
  ACPI: PM: Allow transitions to D0 to occur in special cases
  ACPI: PM: Avoid evaluating _PS3 on transitions from D3hot to D3cold
  ACPI / sleep: Switch to use acpi_dev_get_first_match_dev()
  ACPI / LPIT: Correct LPIT end address for lpit_process()

* pm-sleep:
  kernel: power: swap: use kzalloc() instead of kmalloc() followed by memset()
  PM: sleep: Update struct wakeup_source documentation
  drivers: base: power: remove wakeup_sources_stats_dentry variable
  PM: suspend: Rename pm_suspend_via_s2idle()
  PM: sleep: Show how long dpm_suspend_start() and dpm_suspend_end() take
  PM: hibernate: powerpc: Expose pfn_is_nosave() prototype

* pm-pci:
  PCI: PM/ACPI: Refresh all stale power state data in pci_pm_complete()
  PCI / ACPI: Add _PR0 dependent devices
  ACPI / PM: Introduce concept of a _PR0 dependent device
  PCI / ACPI: Use cached ACPI device state to get PCI device power state
  PCI: Do not poll for PME if the device is in D3cold
  PCI: Add missing link delays required by the PCIe spec
  PCI: PM: Replace pci_dev_keep_suspended() with two functions
  PCI: PM: Avoid resuming devices in D3hot during system suspend

Pull powerpc fix from Michael Ellerman:
 "One fix for a regression in my commit adding KUAP (Kernel User Access
  Prevention) on Radix, which incorrectly touched the AMR in the early
  machine check handler.

  Thanks to Nicholas Piggin"

* tag 'powerpc-5.2-7' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/64s/exception: Fix machine check early corrupting AMR

Pull SMP fixes from Thomas Gleixner:
 "Two small changes for the cpu hotplug code:

   - Prevent out of bounds access which actually might crash the machine
     caused by a missing bounds check in the fail injection code

   - Warn about unsupported migitation mode command line arguments to
     make people aware that they typoed the paramater. Not necessarily a
     fix but quite some people tripped over that"

* 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  cpu/hotplug: Fix out-of-bounds read when setting fail state
  cpu/speculation: Warn on unsupported mitigations= parameter

Pull x86 fixes from Ingo Molnar:
 "Misc fixes all over the place:

   - might_sleep() atomicity fix in the microcode loader

   - resctrl boundary condition fix

   - APIC arithmethics bug fix for frequencies >= 4.2 GHz

   - three 5-level paging crash fixes

   - two speculation fixes

   - a perf/stacktrace fix"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/unwind/orc: Fall back to using frame pointers for generated code
  perf/x86: Always store regs->ip in perf_callchain_kernel()
  x86/speculation: Allow guests to use SSBD even if host does not
  x86/mm: Handle physical-virtual alignment mismatch in phys_p4d_init()
  x86/boot/64: Add missing fixup_pointer() for next_early_pgt access
  x86/boot/64: Fix crash if kernel image crosses page table boundary
  x86/apic: Fix integer overflow on 10 bit left shift of cpu_khz
  x86/resctrl: Prevent possible overrun during bitmap operations
  x86/microcode: Fix the microcode load on CPU hotplug for real

Pull perf fixes from Ingo Molnar:
 "Various fixes, most of them related to bugs perf fuzzing found in the
  x86 code"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/regs: Use PERF_REG_EXTENDED_MASK
  perf/x86: Remove pmu->pebs_no_xmm_regs
  perf/x86: Clean up PEBS_XMM_REGS
  perf/x86/regs: Check reserved bits
  perf/x86: Disable extended registers for non-supported PMUs
  perf/ioctl: Add check for the sample_period value
  perf/core: Fix perf_sample_regs_user() mm check

Pull irq fixes from Ingo Molnar:
 "Diverse irqchip driver fixes"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/gic-v3-its: Fix command queue pointer comparison bug
  irqchip/mips-gic: Use the correct local interrupt map registers
  irqchip/ti-sci-inta: Fix kernel crash if irq_create_fwspec_mapping fail
  irqchip/irq-csky-mpintc: Support auto irq deliver to all cpus

Pull EFI fixes from Ingo Molnar:
 "Four fixes:
   - fix a kexec crash on arm64
   - fix a reboot crash on some Android platforms
   - future-proof the code for upcoming ACPI 6.2 changes
   - fix a build warning on x86"

* 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efibc: Replace variable set function in notifier call
  x86/efi: fix a -Wtype-limits compilation warning
  efi/bgrt: Drop BGRT status field reserved bits check
  efi/memreserve: deal with memreserve entries in unmapped memory

Pull power management fix from Rafael Wysocki:
 "Avoid skipping bus-level PCI power management during system resume for
  PCIe ports left in D0 during the preceding suspend transition on
  platforms where the power states of those ports can change out of the
  PCI layer's control"

* tag 'pm-5.2-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PCI: PM: Avoid skipping bus-level PM on platforms without ACPI

Pull XArray fixes from Matthew Wilcox:

 - Account XArray nodes for the page cache to the appropriate cgroup
   (Johannes Weiner)

 - Fix idr_get_next() when called under the RCU lock (Matthew Wilcox)

 - Add a test for xa_insert() (Matthew Wilcox)

* tag 'xarray-5.2-rc6' of git://git.infradead.org/users/willy/linux-dax:
  XArray tests: Add check_insert
  idr: Fix idr_get_next race with idr_remove
  mm: fix page cache convergence regression

Merge misc fixes from Andrew Morton:
 "15 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  linux/kernel.h: fix overflow for DIV_ROUND_UP_ULL
  mm, swap: fix THP swap out
  fork,memcg: alloc_thread_stack_node needs to set tsk->stack
  MAINTAINERS: add CLANG/LLVM BUILD SUPPORT info
  mm/vmalloc.c: avoid bogus -Wmaybe-uninitialized warning
  mm/page_idle.c: fix oops because end_pfn is larger than max_pfn
  initramfs: fix populate_initrd_image() section mismatch
  mm/oom_kill.c: fix uninitialized oc->constraint
  mm: hugetlb: soft-offline: dissolve_free_huge_page() return zero on !PageHuge
  mm: soft-offline: return -EBUSY if set_hwpoison_free_buddy_page() fails
  signal: remove the wrong signal_pending() check in restore_user_sigmask()
  fs/binfmt_flat.c: make load_flat_shared_library() work
  mm/mempolicy.c: fix an incorrect rebind node in mpol_rebind_nodemask
  fs/proc/array.c: allow reporting eip/esp for all coredumping threads
  mm/dev_pfn: exclude MEMORY_DEVICE_PRIVATE while computing virtual address

Pull ARC fixes from Vineet Gupta:

 - hsdk platform unifying apertures

 - build system CROSS_COMPILE prefix

* tag 'arc-5.2-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARC: [plat-hsdk]: unify memory apertures configuration
  ARC: build: Try to guess CROSS_COMPILE with cc-cross-prefix

Pull RISC-V fixes from Paul Walmsley:
 "Minor RISC-V fixes and one defconfig update.

  The fixes have no functional impact:

   - Fix some comment text in the memory management vmalloc_fault path.

   - Fix some warnings from the DT compiler in our newly-added DT files.

   - Change the newly-added DT bindings such that SoC IP blocks with
     external I/O are marked as "disabled" by default, then enable them
     explicitly in board DT files when the devices are used on the
     board. This aligns the bindings with existing upstream practice.

   - Add the MIT license as an option for a minor header file, at the
     request of one of the U-Boot maintainers.

  The RISC-V defconfig update builds the SiFive SPI driver and the
  MMC-SPI driver by default. The intention here is to make v5.2 more
  usable for testers and users with RISC-V hardware"

* tag 'riscv-for-v5.2/fixes-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: mm: Fix code comment
  dt-bindings: clock: sifive: add MIT license as an option for the header file
  dt-bindings: riscv: resolve 'make dt_binding_check' warnings
  riscv: dts: Re-organize the DT nodes
  RISC-V: defconfig: enable MMC & SPI for RISC-V

Pull two more NFS client fixes from Anna Schumaker:
 "These are both stable fixes.

  One to calculate the correct client message length in the case of
  partial transmissions. And the other to set the proper TCP timeout for
  flexfiles"

* tag 'nfs-for-5.2-4' of git://git.linux-nfs.org/projects/anna/linux-nfs:
  NFS/flexfiles: Use the correct TCP timeout for flexfiles I/O
  SUNRPC: Fix up calculation of client message length