Commit graph

982,081 commits

Author SHA1 Message Date
Bartosz Golaszewski
8d4a85b6ab gpiolib: switch to simpler IDA interface
We don't need to specify any ranges when allocating IDs so we can switch
to ida_alloc() and ida_free() instead of the ida_simple_ counterparts.

ida_simple_get(ida, 0, 0, gfp) is equivalent to
ida_alloc_range(ida, 0, UINT_MAX, gfp) which is equivalent to
ida_alloc(ida, gfp). Note: IDR will never actually allocate an ID
larger than INT_MAX.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-09-14 10:52:41 +02:00
Zhenyu Wang
28284943ac drm/i915/gvt: Fix port number for BDW on EDID region setup
Current BDW virtual display port is initialized as PORT_B, so need
to use same port for VFIO EDID region, otherwise invalid EDID blob
pointer is assigned which caused kernel null pointer reference. We
might evaluate actual display hotplug for BDW to make this function
work as expected, anyway this is always required to be fixed first.

Reported-by: Alejandro Sior <aho@sior.be>
Cc: Alejandro Sior <aho@sior.be>
Fixes: 0178f4ce3c ("drm/i915/gvt: Enable vfio edid for all GVT supported platform")
Reviewed-by: Hang Yuan <hang.yuan@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20200914030302.2775505-1-zhenyuw@linux.intel.com
2020-09-14 16:44:39 +08:00
Wang Hai
c53ec7bcc7 ext2: Fix some kernel-doc warnings in balloc.c
Fixes the following W=1 kernel build warning(s):

fs/ext2/balloc.c:203: warning: Excess function parameter 'rb_root' description in '__rsv_window_dump'
fs/ext2/balloc.c:294: warning: Excess function parameter 'rb_root' description in 'search_reserve_window'
fs/ext2/balloc.c:878: warning: Excess function parameter 'rsv' description in 'alloc_new_reservation'

Link: https://lore.kernel.org/r/20200911114036.60616-1-wanghai38@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: Jan Kara <jack@suse.cz>
2020-09-14 10:34:56 +02:00
Andre Przywara
3328c65666 ARM: dts: hisilicon: Fix SP805 clocks
The SP805 DT binding requires two clocks to be specified, but
Hisilicon platform DTs currently only specify one clock.

In practice, Linux would pick a clock named "apb_pclk" for the bus
clock, and the Linux and U-Boot SP805 driver would use the first clock
to derive the actual watchdog counter frequency.

Since currently both are the very same clock, we can just double the
clock reference, and add the correct clock-names, to match the binding.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2020-09-14 16:31:06 +08:00
Julian Wiedmann
180a4c42e5 s390/qdio: always use dev_name() for device name in QIB
Passing a custom name from the device driver is nice - but in practice
it's only zfcp who has been using this. So we might as well hard-code
a naming scheme in the qdio layer, so that qeth also benefits from it.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Steffen Maier <maier@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2020-09-14 10:30:07 +02:00
Niklas Schnelle
b02002cc4c s390/pci: Implement ioremap_wc/prot() with MIO
With our current support for the new MIO PCI instructions, write
combining/write back MMIO memory can be obtained via the pci_iomap_wc()
and pci_iomap_wc_range() functions.
This is achieved by using the write back address for a specific bar
as provided in clp_store_query_pci_fn()

These functions are however not widely used and instead drivers often
rely on ioremap_wc() and ioremap_prot(), which on other platforms enable
write combining using a PTE flag set through the pgrprot value.

While we do not have a write combining flag in the low order flag bits
of the PTE like x86_64 does, with MIO support, there is a write back bit
in the physical address (bit 1 on z15) and thus also the PTE.
Which bit is used to toggle write back and whether it is available at
all, is however not fixed in the architecture. Instead we get this
information from the CLP Store Logical Processor Characteristics for PCI
command. When the write back bit is not provided we fall back to the
existing behavior.

Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
Reviewed-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2020-09-14 10:30:07 +02:00
Julian Wiedmann
4d4a3caaf3 s390/qdio: clean up QDR setup
__qdio_allocate_fill_qdr() is meant to set up one specific queue
descriptor in the QDR. But for this simple task, it gets passed a bunch
of global structs and offsets - and then navigates through the structs
to find its actual operands.

Clean up all the complicated pointer chasing & index calculation, and
just pass a descriptor and its associated queue struct.

While at it also add some virt_to_phys() translations, to clarify that
addresses in the QDR are meant to be absolute.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2020-09-14 10:30:07 +02:00
Julian Wiedmann
309f98dbc6 s390/qdio: make qdio_handle_aobs() more robust
When processing a PENDING buffer with no attached aob, the current code
would get stuck on this buffer (as the 'continue' causes us to not
advance the buffer index) and process it repeatedly until the loop
terminates eventually.

Luckily this should never happen - the HW must not use the PENDING state
when no aob was provided. But we can still make this code path less
fragile and protect against buggy devices.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2020-09-14 10:30:07 +02:00
Sven Schnelle
4bf3ec384e s390: disable branch profiling for vdso
When branch profiling is enabled, if () gets annotated with code to
instrument the hit/miss ratio. This doesn't work for VDSO as we can't
access kernel code. Add -DDISABLE_BRANCH_PROFILING to fix this.

Reported-by: Thomas Richter <tmricht@linux.ibm.com>
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2020-09-14 10:30:07 +02:00
Greg Kroah-Hartman
bbc11b34fa Here is the first set of changes for the 5.10-rc1 merge window.
Xilinx:
 - Luca's changes clean up the xilinx-spi driver and add better
   diagnostics on errors.
 
 Core:
 - I cleaned up a stray comment.
 - Richard's change marks FPGA manager tasks un-interruptible.
 - Tom has agreed to help out as Reviewer in the FPGA Manager subsystem.
 
 DFL:
 - Xu's changes  add a new bus that is the first part of a series to support
   adding devices via DFL (the other parts are still under review)
 
 All patches have been reviewed on the mailing list, and have been in the
 last few linux-next releases (as part of my for-next branch) without issues.
 
 Signed-off-by: Moritz Fischer <mdf@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 
 iIUEABYIAC0WIQRORt0E5Sb/c/mZMgkXxQAtim5VSwUCX16ipg8cbWRmQGtlcm5l
 bC5vcmcACgkQF8UALYpuVUu+CwD7BSBH5lQEc76fm5m3pQQKKGDEgj7SfqCTtvNx
 B8sGSiUA/RS1x6Ddbg1he5z4vtkkTin0TwW9fSdFI9msMvV2EU4E
 =4LFJ
 -----END PGP SIGNATURE-----

Merge tag 'fpga-for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga into char-misc-next

Moritz writes:

Here is the first set of changes for the 5.10-rc1 merge window.

Xilinx:
- Luca's changes clean up the xilinx-spi driver and add better
  diagnostics on errors.

Core:
- I cleaned up a stray comment.
- Richard's change marks FPGA manager tasks un-interruptible.
- Tom has agreed to help out as Reviewer in the FPGA Manager subsystem.

DFL:
- Xu's changes  add a new bus that is the first part of a series to support
  adding devices via DFL (the other parts are still under review)

All patches have been reviewed on the mailing list, and have been in the
last few linux-next releases (as part of my for-next branch) without issues.

Signed-off-by: Moritz Fischer <mdf@kernel.org>

* tag 'fpga-for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga:
  fpga: dfl: create a dfl bus type to support DFL devices
  fpga: fpga-region: Cleanup an outdated comment
  fpga: dfl: map feature mmio resources in their own feature drivers
  fpga manager: xilinx-spi: provide better diagnostics on programming failure
  fpga manager: xilinx-spi: add error checking after gpiod_get_value()
  fpga manager: xilinx-spi: fix write_complete timeout handling
  fpga manager: xilinx-spi: remove final dot from dev_err() strings
  fpga manager: xilinx-spi: remove stray comment
  fpga: dfl: change data type of feature id to u16
  MAINTAINERS: Add Tom Rix as fpga reviewer
  fpga: stratix10-soc: make FPGA task un-interruptible
2020-09-14 10:24:48 +02:00
Andre Przywara
c26979a7ac ARM: dts: hisilicon: Fix SP804 users
The SP804 binding only specifies one or three clocks, but does not allow
just two clocks.
The HiSi 3620 .dtsi specified two clocks for the two timers, plus gave
one "apb_pclk" clock-name to appease the primecell bus driver.

Extend the clocks by duplicating the first clock to the end of the clock
list, and add two dummy clock-names to make the primecell driver happy.

I don't know what the real APB clock for the IP is, but with the current
DT the first timer clock was used for that, so this change keeps the
current status.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2020-09-14 16:15:22 +08:00
Greg Kroah-Hartman
fccee0bace Merge 5.9-rc5 into usb-next
We need the USB fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-14 10:10:55 +02:00
Greg Kroah-Hartman
9ef8638bd8 Merge 5.9-rc5 into driver-core-next
We need the driver core changes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-14 10:08:57 +02:00
Janosch Frank
cd4d3d5f21 s390: add 3f program exception handler
Program exception 3f (secure storage violation) can only be detected
when the CPU is running in SIE with a format 4 state description,
e.g. running a protected guest. Because of this and because user
space partly controls the guest memory mapping and can trigger this
exception, we want to send a SIGSEGV to the process running the guest
and not panic the kernel.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Cc: <stable@vger.kernel.org> # 5.7
Fixes: 084ea4d611 ("s390/mm: add (non)secure page access exceptions handlers")
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2020-09-14 10:08:07 +02:00
Sven Schnelle
73ac74c7d4 lockdep: fix order in trace_hardirqs_off_caller()
Switch order so that locking state is consistent even
if the IRQ tracer calls into lockdep again.

Acked-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2020-09-14 10:08:07 +02:00
Niklas Schnelle
afdf9550e5 s390/pci: fix leak of DMA tables on hard unplug
commit f606b3ef47 ("s390/pci: adapt events for zbus") removed the
zpci_disable_device() call for a zPCI event with PEC 0x0304 because
the device is already deconfigured by the platform.
This however skips the Linux side of the disable in particular it leads
to leaking the DMA tables and bitmaps because zpci_dma_exit_device() is
never called on the device.

If the device transitions to the Reserved state we call zpci_zdev_put()
but zpci_release_device() will not call zpci_disable_device() because
the state of the zPCI function is already ZPCI_FN_STATE_STANDBY.

If the device is put into the Standby state, zpci_disable_device() is
not called and the device is assumed to have been put in Standby through
platform action.
At this point the device may be removed by a subsequent event with PEC
0x0308 or 0x0306 which calls zpci_zdev_put() with the same problem
as above or the device may be configured again in which case
zpci_disable_device() is also not called.

Fix this by calling zpci_disable_device() explicitly for PEC 0x0304 as
before. To make it more clear that zpci_disable_device() may be called,
even if the lower level device has already been disabled by the
platform, add a comment to zpci_disable_device().

Cc: <stable@vger.kernel.org> # 5.8
Fixes: f606b3ef47 ("s390/pci: adapt events for zbus")
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2020-09-14 10:08:07 +02:00
Ilya Leoshkevich
fcb2b70cdb s390/init: add missing __init annotations
Add __init to reserve_memory_end, reserve_oldmem and remove_oldmem.
Sometimes these functions are not inlined, and then the build
complains about section mismatch.

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2020-09-14 10:08:07 +02:00
Harald Freudenberger
b6186d7fb5 s390/zcrypt: fix kmalloc 256k failure
Tests showed that under stress conditions the kernel may
temporary fail to allocate 256k with kmalloc. However,
this fix reworks the related code in the cca_findcard2()
function to use kvmalloc instead.

Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Ingo Franzki <ifranzki@linux.ibm.com>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2020-09-14 10:08:07 +02:00
Peter Zijlstra
ca589ea8d1 s390/idle: fix suspicious RCU usage
After commit eb1f00237a ("lockdep,trace: Expose tracepoints") the
lock tracepoints are visible to lockdep and RCU-lockdep is finding a
bunch more RCU violations that were previously hidden.

Switch the idle->seqcount over to using raw_write_*() to avoid the
lockdep annotation and thus the lock tracepoints.

Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2020-09-14 10:08:07 +02:00
Greg Kroah-Hartman
05fa34dcdb Linux 5.9-rc5
-----BEGIN PGP SIGNATURE-----
 
 iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAl9epdgeHHRvcnZhbGRz
 QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiG9IMH/jHCRSbcsIXHuQHn
 xcRLlhrDHfXoBza7auHfPWx2+9DZsmaSJs/SEiTGNag0Bi7jBcWcwBpsep7iVG/+
 WiftD5uOMhZigyuvfMFrt0mjr2Kr3wg5p58lwMBeBdm8iL5uKV8ehKsh05/Fral2
 6hu3jP8L0PCZMpF+sZ7s2jlhfVUMmjA8VzXZCvgQtmhoraHiF3mzfkcSMxnHwBPO
 HLo+TDDm49u+LbVsJT7+cSTiWxuUJCbix9Q4PCTx/BGg4ezYsjc6v0BnYRaYtrrA
 1uYiT6PVBEUkYYBHKQlD3N2KnUmbKx7dGUF4t+peTg5/JiocAJMNi1N9Qzvv7N6Q
 CqTiuio=
 =q+kJ
 -----END PGP SIGNATURE-----

Merge 5.9-rc5 into char-misc-next

We want the char/misc fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-14 10:07:08 +02:00
Andre Przywara
a665b2c1d2 arm64: dts: hisilicon: Fix SP805 clocks
The SP805 DT binding requires two clocks to be specified, but
Hisilicon platform DTs currently only specify one clock.

In practice, Linux would pick a clock named "apb_pclk" for the bus
clock, and the Linux and U-Boot SP805 driver would use the first clock
to derive the actual watchdog counter frequency.

Since currently both are the very same clock, we can just double the
clock reference, and add the correct clock-names, to match the binding.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2020-09-14 15:27:04 +08:00
Thomas Zimmermann
d88656f475 drm/vboxvideo: Use drm_gem_vram_vmap() interfaces
VRAM helpers support ref counting for pin and vmap operations, no need
to avoid these operations by employing the internal kmap interface. Just
use drm_gem_vram_vmap() and let it handle the details.

Also unexport the kmap interfaces from VRAM helpers. Vboxvideo was the
last user of these internal functions.

v2:
	* fixed a comma in commit description

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200911075922.19317-1-tzimmermann@suse.de
2020-09-14 09:12:24 +02:00
Collin Walling
f20d4e924b docs: kvm: add documentation for KVM_CAP_S390_DIAG318
Documentation for the s390 DIAGNOSE 0x318 instruction handling.

Signed-off-by: Collin Walling <walling@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Link: https://lore.kernel.org/kvm/20200625150724.10021-2-walling@linux.ibm.com/
Message-Id: <20200625150724.10021-2-walling@linux.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2020-09-14 09:08:10 +02:00
Parshuram Thombare
cc3a392d69 i3c: master: fix for SETDASA and DAA process
This patch fix following issue.
Controller slots blocked for devices with static_addr
but no init_dyn_addr may limit the number of I3C devices
on the bus which gets dynamic address in DAA. So
instead of attaching all the devices with static_addr,
now we only attach the devices which successfully
complete SETDASA. For remaining devices with init_dyn_addr,
i3c_master_add_i3c_dev_locked() will try to set requested
dynamic address after DAA.

Signed-off-by: Parshuram Thombare <pthombar@cadence.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/linux-i3c/1598337109-14770-1-git-send-email-pthombar@cadence.com
2020-09-14 09:05:58 +02:00
Jean Delvare
811a6e18a8 i2c: i801: Simplify the suspend callback
We don't actually need to derive the PCI device from the device
structure, as we already have a pointer to it in our private data
structure.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-09-14 09:04:12 +02:00
Volker Rümelin
66d402e2e9 i2c: i801: Fix resume bug
On suspend the original host configuration gets restored. The
resume routine has to undo this, otherwise the SMBus master
may be left in disabled state or in i2c mode.

[JD: Rebased on v5.8, moved the write into i801_setup_hstcfg.]

Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Cc: stable@vger.kernel.org
2020-09-14 09:02:52 +02:00
Eddie James
1a1d6db23d i2c: aspeed: Mask IRQ status to relevant bits
Mask the IRQ status to only the bits that the driver checks. This
prevents excessive driver warnings when operating in slave mode
when additional bits are set that the driver doesn't handle.

Signed-off-by: Eddie James <eajames@linux.ibm.com>
Reviewed-by: Tao Ren <rentao.bupt@gmail.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-09-14 08:55:44 +02:00
Johnny Chuang
4238e52cc3 Input: elants_i2c - report resolution of ABS_MT_TOUCH_MAJOR by FW information.
This patch adds a new behavior to report touch major resolution
based on information provided by firmware.

In initial process, driver acquires touch information from touch ic.
It contains one byte about the resolution value of ABS_MT_TOUCH_MAJOR.
Touch driver will report touch major resolution by this information.

Signed-off-by: Johnny Chuang <johnny.chuang.emc@gmail.com>
Reviewed-by: Harry Cutts <hcutts@chromium.org>
Link: https://lore.kernel.org/r/1598581195-9874-1-git-send-email-johnny.chuang.emc@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-09-13 23:41:00 -07:00
Furquan Shaikh
f492ffe414 Input: raydium_i2c_ts - use single i2c_transfer transaction when using RM_CMD_BANK_SWITCH
On an AMD chromebook, where the same I2C bus is shared by both Raydium
touchscreen and a trackpad device, it is observed that interleaving of
I2C messages when `raydium_i2c_read_message()` is called leads to the
Raydium touch IC reporting incorrect information. This is the sequence
that was observed to result in the above issue:

* I2C write to Raydium device for RM_CMD_BANK_SWITCH
* I2C write to trackpad device
* I2C read from trackpad device
* I2C write to Raydium device for setting address
* I2C read from Raydium device >>>> This provides incorrect
  information

This change adds a new helper function `raydium_i2c_xfer()` that
performs I2C transactions to the Raydium device. It uses the register
address to decide if RM_CMD_BANK_SWITCH header needs to be sent to the
device (i.e. if register address is greater than 255, then bank switch
header is sent before the rest of the transaction). Additionally, it
ensures that all the I2C operations performed as part of
`raydium_i2c_xfer()` are done as a single i2c_transfer. This
guarantees that no other transactions are initiated to any other
device on the same bus in between. Additionally,
`raydium_i2c_{send|read}*` functions are refactored to use this new
helper function.

Verified with the patch across multiple reboots (>100) that the
information reported by the Raydium  touchscreen device during probe
is correct.

Signed-off-by: Furquan Shaikh <furquan@google.com>
Link: https://lore.kernel.org/r/20200821024006.3399663-1-furquan@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-09-13 23:32:58 -07:00
Sudeep Holla
66d90f6ece firmware: arm_scmi: Enable building as a single module
Now, with all the plumbing in place to enable building scmi as a module
instead of built-in modules, let us enable the same.

Link: https://lore.kernel.org/r/20200907195046.56615-5-sudeep.holla@arm.com
Tested-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2020-09-14 07:31:03 +01:00
Sudeep Holla
1eaf18e35a firmware: arm_scmi: Move scmi protocols registration into the driver
In preparation to enable building SCMI as a single module, let us move
the SCMI protocol registration call into the driver. This enables us
to also add unregistration of the SCMI protocols.

The main reason for this is to keep it simple instead of maintaining
it as separate modules and dealing with all possible initcall races
and deferred probe handling. We can move it as separate modules if
needed in future.

Link: https://lore.kernel.org/r/20200907195046.56615-4-sudeep.holla@arm.com
Tested-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2020-09-14 07:30:55 +01:00
Sudeep Holla
5a2f0a0bdf firmware: arm_scmi: Move scmi bus init and exit calls into the driver
In preparation to enable building scmi as a single module, let us move
the scmi bus {de-,}initialisation call into the driver.

The main reason for this is to keep it simple instead of maintaining
it as separate modules and dealing with all possible initcall races
and deferred probe handling. We can move it as separate modules if
needed in future.

Link: https://lore.kernel.org/r/20200907195046.56615-3-sudeep.holla@arm.com
Tested-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2020-09-14 07:30:48 +01:00
Sudeep Holla
6825f17c95 firmware: smccc: Export both smccc functions
We need to export both arm_smccc_1_1_get_conduit and arm_smccc_get_version
to allow several modules make use of them. Arm FFA, Arm SCMI and PTP
drivers are few drivers that are planning to use these functions.

Let us export them in preparation to add support for SCMI as module.

Link: https://lore.kernel.org/r/20200907195046.56615-2-sudeep.holla@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2020-09-14 07:30:36 +01:00
Hans de Goede
78a5b53e9f Input: soc_button_array - work around DSDTs which modify the irqflags
Some 2-in-1s which use the soc_button_array driver have this ugly issue in
their DSDT where the _LID method modifies the irq-type settings of the
GPIOs used for the power and home buttons. The intend of this AML code is
to disable these buttons when the lid is closed.

The AML does this by directly poking the GPIO controllers registers. This
is problematic because when re-enabling the irq, which happens whenever
_LID gets called with the lid open (e.g. on boot and on resume), it sets
the irq-type to IRQ_TYPE_LEVEL_LOW. Where as the gpio-keys driver programs
the type to, and expects it to be, IRQ_TYPE_EDGE_BOTH.

This commit adds a workaround for this which (on affected devices) does
not set gpio_keys_button.gpio on these 2-in-1s, instead it gets the irq for
the GPIO, configures it as IRQ_TYPE_LEVEL_LOW (to match how the _LID AML
code configures it) and passes the irq in gpio_keys_button.irq.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20200906122016.4628-2-hdegoede@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-09-13 23:08:48 -07:00
Hans de Goede
4e5d9c1983 Input: soc_button_array - add support for INT33D3 tablet-mode switch devices
According to the Microsoft documentation for Windows 8 convertible
devices, these devices should implement a PNP0C60 "laptop/slate mode state
indicator" ACPI device.

This device can work in 2 ways, if there is a GPIO which directly
indicates the device is in tablet-mode or not then the direct-gpio mode
should be used. If there is no such GPIO, but instead the events are
coming from e.g. the embedded-controller, then there should still be
a PNP0C60 ACPI device and event-injection should be used to send the
events. The drivers/platform/x86/intel-vbtn.c code is an example from
a standardized manner of doing the latter.

On various 2-in-1s with either a detachable keyboard, or with 360°
hinges, the direct GPIO mode is indicated by an ACPI device with a
HID of INT33D3, which contains a single GpioInt in its ACPI resource
table, which directly indicates if the device is in tablet-mode or not.

This commit adds support for this to the soc_button_array code, as
well as for the alternative ID9001 HID which some devices use
instead of the INT33D3 HID.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20200826150601.12137-3-hdegoede@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-09-13 23:08:47 -07:00
Hans de Goede
838fc8083b Input: soc_button_array - add active_low setting to soc_button_info
This is a preparation patch for adding support for Intel INT33D3
ACPI devices. These INT33D3 devices follow yet another Intel defined
(but not documented) ACPI GPIO button standard.

Unlike the ACPI GPIO button devices supported so far, the GPIO used in
the INT33D3 devices is active-high, rather then active-low.

This commit makes setting the gpio_keys_button.active_low flag
configurable through the soc_button_info struct and enables it for all
currently supported devices.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20200826150601.12137-2-hdegoede@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-09-13 23:08:46 -07:00
Adrian Schmutzler
64ea21e017 arm64: dts: hisilicon: replace status value "ok" by "okay"
While the DT parser recognizes "ok" as a valid value for the
"status" property, it is actually mentioned nowhere. Use the
proper value "okay" instead, as done in the majority of files
already.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2020-09-14 14:08:19 +08:00
Vinod Koul
3338ca533b dmaengine: sf-pdma: remove unused 'desc'
'desc' variable is now defined but not used in sf_pdma_donebh_tasklet(),
causing this warning:

drivers/dma/sf-pdma/sf-pdma.c: In function 'sf_pdma_donebh_tasklet':
drivers/dma/sf-pdma/sf-pdma.c:287:23: warning: unused variable 'desc' [-Wunused-variable]

Remove this unused variable

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-14 11:19:49 +05:30
Greg Kroah-Hartman
1622d35453 Merge 5.9-rc5 into staging-next
We want the staging/iio changes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-14 06:57:52 +02:00
Rich Felker
b0cfc315ff sh: fix syscall tracing
Addition of SECCOMP_FILTER exposed a longstanding bug in
do_syscall_trace_enter, whereby r0 (the 5th argument register) was
mistakenly used where r3 (syscall_nr) was intended. By overwriting r0
rather than r3 with -1 when attempting to block a syscall, the
existing code would instead have caused the syscall to execute with an
argument clobbered.

Commit 0bb605c2c7 then introduced skipping of the syscall when
do_syscall_trace_enter returns -1, so that the return value set by
seccomp filters would not be clobbered by -ENOSYS. This eliminated the
clobbering of the 5th argument register, but instead caused syscalls
made with a 5th argument of -1 to be misinterpreted as a request by
do_syscall_trace_enter to suppress the syscall.

Fixes: 0bb605c2c7 ("sh: Add SECCOMP_FILTER")
Fixes: ab99c733ae ("sh: Make syscall tracer use tracehook notifiers, add TIF_NOTIFY_RESUME.")
Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Signed-off-by: Rich Felker <dalias@libc.org>
2020-09-13 21:22:55 -04:00
Rich Felker
ca6345de57 sh: remove spurious circular inclusion from asm/smp.h
Commit 0cd39f4600 added inclusion of smp.h to lockdep.h,
creating a circular include dependency where arch/sh's asm/smp.h in
turn includes spinlock.h which depends on lockdep.h. Since our
asm/smp.h does not actually need spinlock.h, just remove it.

Fixes: 0cd39f4600 ("locking/seqlock, headers: Untangle the spaghetti monster")
Tested-by: Rob Landley <rob@landley.net>
Signed-off-by: Rich Felker <dalias@libc.org>
2020-09-13 21:11:40 -04:00
Łukasz Patron
b1c0da47cc arm64: dts: qcom: pm660: Fix missing pound sign in interrupt-cells
Also add a space after '=' while at it.

Tested-by: Konrad Dybcio <konradybcio@gmail.com>
Signed-off-by: Łukasz Patron <priv.luk@gmail.com>
Link: https://lore.kernel.org/r/20200725082417.8507-1-priv.luk@gmail.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-09-14 00:04:52 +00:00
Stephen Boyd
51e9874d38 arm64: dts: qcom: sc7180: Drop flags on mdss irqs
The number of interrupt cells for the mdss interrupt controller is 1,
meaning there should only be one cell for the interrupt number, not two
where the second cell is the irq flags. Drop the second cell to match
the binding.

Cc: Kalyan Thota <kalyan_t@codeaurora.org>
Cc: Harigovindan P <harigovi@codeaurora.org
Fixes: a3db7ad1af ("arm64: dts: sc7180: add display dt nodes")
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20200811192503.1811462-1-swboyd@chromium.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-09-14 00:04:52 +00:00
Gokul Sriram Palanisamy
5f854f096f dt-bindings: qcom: Add ipq8074 bindings
Document the new device-tree bindings for boards
HK10-C1 and HK10-C2 based on ipq8074 SoC.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Gokul Sriram Palanisamy <gokulsri@codeaurora.org>
Link: https://lore.kernel.org/r/1596706332-12957-2-git-send-email-gokulsri@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-09-13 23:59:24 +00:00
Kathiravan T
292b18741e arm64: dts: ipq8074: Use the A53 PMU compatible
IPQ8074 has A53 cores, so lets use the corresponding PMU compatible.

Signed-off-by: Kathiravan T <kathirav@codeaurora.org>
Link: https://lore.kernel.org/r/1597642116-15902-1-git-send-email-kathirav@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-09-13 23:56:30 +00:00
Kathiravan T
36f91e6316 arm64: dts: ipq6018: enable DVFS support
Add A53 PLL, APCS clock, RPM Glink, RPM message RAM, cpu-opp-table,
SMPA2 regulator to enable the cpu frequency on IPQ6018.

Co-developed-by: Sivaprakash Murugesan <sivaprak@codeaurora.org>
Signed-off-by: Sivaprakash Murugesan <sivaprak@codeaurora.org>
Signed-off-by: Kathiravan T <kathirav@codeaurora.org>
Link: https://lore.kernel.org/r/1597648720-13649-3-git-send-email-kathirav@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-09-13 23:56:11 +00:00
Kathiravan T
5a8c1669f3 dt-bindings: mailbox: add compatible for the IPQ6018 SoC
Add the mailbox compatible for the IPQ6018 SoC.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kathiravan T <kathirav@codeaurora.org>
Link: https://lore.kernel.org/r/1597648720-13649-2-git-send-email-kathirav@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-09-13 23:56:11 +00:00
Adrian Schmutzler
7a1dcc9d02 arm64: dts: qcom: replace status value "ok" by "okay"
While the DT parser recognizes "ok" as a valid value for the
"status" property, it is actually mentioned nowhere. Use the
proper value "okay" instead, as done in the majority of files
already.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Link: https://lore.kernel.org/r/20200830200845.1771-1-freifunk@adrianschmutzler.de
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-09-13 23:55:34 +00:00
Kathiravan T
949766e0a3 arm64: dts: ipq8074: enable watchdog support
Enable watchdog support for the IPQ8074 SoCs.

Signed-off-by: Kathiravan T <kathirav@codeaurora.org>
Link: https://lore.kernel.org/r/1598862428-13996-1-git-send-email-kathirav@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-09-13 23:55:29 +00:00
Jonathan Marek
9ff8b0591f arm64: dts: qcom: sm8250: use the right clock-freqency for sleep-clk
Downstream has this clock as 32000 rate, but testing shows it is close to
32768.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Link: https://lore.kernel.org/r/20200903215923.14314-1-jonathan@marek.ca
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-09-13 23:54:50 +00:00