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7 years agoANDROID: binder: Don't BUG_ON(!spin_is_locked()).
Martijn Coenen [Thu, 31 Aug 2017 08:04:26 +0000 (10:04 +0200)]
ANDROID: binder: Don't BUG_ON(!spin_is_locked()).

Because is_spin_locked() always returns false on UP
systems.

Use assert_spin_locked() instead, and remove the
WARN_ON() instances, since those were easy to verify.

Signed-off-by: Martijn Coenen <maco@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agoANDROID: binder: Add BINDER_GET_NODE_DEBUG_INFO ioctl
Colin Cross [Thu, 31 Aug 2017 08:04:24 +0000 (10:04 +0200)]
ANDROID: binder: Add BINDER_GET_NODE_DEBUG_INFO ioctl

The BINDER_GET_NODE_DEBUG_INFO ioctl will return debug info on
a node.  Each successive call reusing the previous return value
will return the next node.  The data will be used by
libmemunreachable to mark the pointers with kernel references
as reachable.

Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: Martijn Coenen <maco@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agoANDROID: binder: push new transactions to waiting threads.
Martijn Coenen [Thu, 31 Aug 2017 08:04:19 +0000 (10:04 +0200)]
ANDROID: binder: push new transactions to waiting threads.

Instead of pushing new transactions to the process
waitqueue, select a thread that is waiting on proc
work to handle the transaction. This will make it
easier to improve priority inheritance in future
patches, by setting the priority before we wake up
a thread.

If we can't find a waiting thread, submit the work
to the proc waitqueue instead as we did previously.

Signed-off-by: Martijn Coenen <maco@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agoANDROID: binder: remove proc waitqueue
Martijn Coenen [Thu, 31 Aug 2017 08:04:18 +0000 (10:04 +0200)]
ANDROID: binder: remove proc waitqueue

Removes the process waitqueue, so that threads
can only wait on the thread waitqueue. Whenever
there is process work to do, pick a thread and
wake it up. Having the caller pick a thread is
helpful for things like priority inheritance.

This also fixes an issue with using epoll(),
since we no longer have to block on different
waitqueues.

Signed-off-by: Martijn Coenen <maco@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agoandroid: binder: Add page usage in binder stats
Sherry Yang [Thu, 31 Aug 2017 18:56:36 +0000 (11:56 -0700)]
android: binder: Add page usage in binder stats

Add the number of active, lru, and free pages for
each binder process in binder stats

Signed-off-by: Sherry Yang <sherryy@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agoandroid: binder: fixup crash introduced by moving buffer hdr
Sherry Yang [Thu, 31 Aug 2017 17:26:06 +0000 (10:26 -0700)]
android: binder: fixup crash introduced by moving buffer hdr

Fix crash introduced by 74310e06be4d74dcf67cd108366710dee5c576d5
(android: binder: Move buffer out of area shared with user space)
when close is called after open without mmap in between.

Reported-by: kernel test robot <fengguang.wu@intel.com>
Fixes: 74310e06be4d ("android: binder: Move buffer out of area shared with user space")
Signed-off-by: Sherry Yang <sherryy@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agodrivers: w1: add hwmon temp support for w1_therm
Jaghathiswari Rankappagounder Natarajan [Wed, 30 Aug 2017 23:34:35 +0000 (16:34 -0700)]
drivers: w1: add hwmon temp support for w1_therm

This change adds hwmon temp support for w1_therm.

Signed-off-by: Jaghathiswari Rankappagounder Natarajan <jaghu@google.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agodrivers: w1: refactor w1_slave_show to make the temp reading functionality separate
Jaghathiswari Rankappagounder Natarajan [Wed, 30 Aug 2017 23:34:34 +0000 (16:34 -0700)]
drivers: w1: refactor w1_slave_show to make the temp reading functionality separate

Inside the w1_slave_show function refactor the code to read the temp
into a separate function.

Signed-off-by: Jaghathiswari Rankappagounder Natarajan <jaghu@google.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agodrivers: w1: add hwmon support structures
Jaghathiswari Rankappagounder Natarajan [Wed, 30 Aug 2017 23:34:33 +0000 (16:34 -0700)]
drivers: w1: add hwmon support structures

This patch has changes to w1.h/w1.c generic files to add (optional) hwmon
support structures.

Signed-off-by: Jaghathiswari Rankappagounder Natarajan <jaghu@google.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agoeeprom: idt_89hpesx: Support both ACPI and OF probing
Huy Duong [Wed, 30 Aug 2017 14:53:37 +0000 (21:53 +0700)]
eeprom: idt_89hpesx: Support both ACPI and OF probing

Allow the idt_89hpesx driver to get information from child nodes from
both OF and ACPI by using more generic fwnode_property_read*() functions.

Below is an example of instantiating idt_89hpesx driver via ACPI Table:

Device(IDT0) {
 Name(_HID, "PRP0001")
 Name(_CID, "PRP0001")
 Name(_CCA, ONE)
 Name(_STR, Unicode("IDT SW I2C Slave"))
 Name(_CRS, ResourceTemplate () {
  I2cSerialBus (0x74, ControllerInitiated, 1000,
   AddressingMode7Bit, "\\_SB.I2CS",
   0x00, ResourceConsumer, ,
  )
 })
 Name (_DSD, Package () {
  ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
  Package () {
   Package () {"compatible", "idt,89hpes32nt8ag2"},
  },
 })
 Device (EPR0) {
  Name (_DSD, Package () {
   ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
   Package () {
    Package () {"compatible", "onsemi,24c64"},
    Package () {"reg", 0x50},
   }
  })
 }
}

Signed-off-by: Huy Duong <qhuyduong@hotmail.com>
Acked-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agomcb: Fix an error handling path in 'chameleon_parse_cells()'
Christophe JAILLET [Tue, 29 Aug 2017 12:47:25 +0000 (14:47 +0200)]
mcb: Fix an error handling path in 'chameleon_parse_cells()'

If 'chameleon_get_bar()' fails, we will return 0, which mean success.
We should return the corresponding error code instead.

Remove the useless initialisation of 'ret' which was hiding the issue.
(if 'ret' is not set, gcc generates a warning ("warning: ‘ret’ may be used
uninitialized in this function"))

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agoMCB: add support for SC31 to mcb-lpc
Michael Moese [Tue, 29 Aug 2017 12:47:24 +0000 (14:47 +0200)]
MCB: add support for SC31 to mcb-lpc

This patch adds the resources and DMI ID's for the MEN SC31,
which uses a different address region to map the LPC bus than
the one used for the existing SC24.

Signed-off-by: Michael Moese <michael.moese@men.de>
[jth add stable tag]
Cc: <stable@vger.kernel.org> (v4.9+)
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agomux: make device_type const
Bhumika Goyal [Tue, 29 Aug 2017 08:49:52 +0000 (10:49 +0200)]
mux: make device_type const

Make this const as it is only stored in the type field of a device
structure, which is const.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agochar: virtio: constify attribute_group structures.
Arvind Yadav [Wed, 2 Aug 2017 11:21:08 +0000 (16:51 +0530)]
char: virtio: constify attribute_group structures.

attribute_group are not supposed to change at runtime. All functions
working with attribute_group provided by <linux/sysfs.h> work with
const attribute_group. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agoDocumentation/ABI: document the nvmem sysfs files
Srinivas Kandagatla [Wed, 26 Jul 2017 10:09:02 +0000 (12:09 +0200)]
Documentation/ABI: document the nvmem sysfs files

NVMEM has been in kernel since v4.2 but the ABI document was missing
since then. userspace interface did not change since then and seems
stable, so this patch documents the nvmem ABI.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agolkdtm: fix spelling mistake: "incremeted" -> "incremented"
Colin Ian King [Fri, 18 Aug 2017 15:34:59 +0000 (16:34 +0100)]
lkdtm: fix spelling mistake: "incremeted" -> "incremented"

Trivial fix to spelling mistake in pr_info message

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agoperf: cs-etm: Fix ETMv4 CONFIGR entry in perf.data file
Mike Leach [Wed, 2 Aug 2017 16:22:19 +0000 (10:22 -0600)]
perf: cs-etm: Fix ETMv4 CONFIGR entry in perf.data file

The value passed into the perf.data file for the CONFIGR register in ETMv4
was incorrectly being set to the command line options/ETMv3 value.

Adds bit definitions and function to remap this value to the correct ETMv4
CONFIGR bit values for all selected options.

Signed-off-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agonvmem: include linux/err.h from header
Srinivas Kandagatla [Wed, 26 Jul 2017 09:34:48 +0000 (11:34 +0200)]
nvmem: include linux/err.h from header

missing err.h header file can cause simillar errors like below
in some configurations.
"error: implicit declaration of function 'ERR_PTR'
[-Werror=implicit-function-declaration]"

This adds the missing include to ensure we can always include
the header.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agonvmem: core: remove unneeded NULL check
Dan Carpenter [Wed, 26 Jul 2017 09:34:47 +0000 (11:34 +0200)]
nvmem: core: remove unneeded NULL check

"p" is the list iterator so it can't be NULL.  Static checkers complain
about this unnecessary check because we dereference the list iterator to
get the next item in the list so we'd be in trouble if it really was
NULL.  I have removed the check.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agonvmem: core: Add nvmem_cell_read_u32
Leonard Crestez [Wed, 26 Jul 2017 09:34:46 +0000 (11:34 +0200)]
nvmem: core: Add nvmem_cell_read_u32

This function does a quick and easy read of an u32 value without any
kind of resource management code on the consumer side.

Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agonvmem: Convert to using %pOF instead of full_name
Rob Herring [Wed, 26 Jul 2017 09:34:44 +0000 (11:34 +0200)]
nvmem: Convert to using %pOF instead of full_name

Now that we have a custom printf format specifier, convert users of
full_name to use %pOF instead. This is preparation to remove storing
of the full path string for each node.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agonvmem: lpc18xx-eeprom: explicitly request exclusive reset control
Philipp Zabel [Wed, 26 Jul 2017 09:34:43 +0000 (11:34 +0200)]
nvmem: lpc18xx-eeprom: explicitly request exclusive reset control

Commit a53e35db70d1 ("reset: Ensure drivers are explicit when requesting
reset lines") started to transition the reset control request API calls
to explicitly state whether the driver needs exclusive or shared reset
control behavior. Convert all drivers requesting exclusive resets to the
explicit API call so the temporary transition helpers can be removed.

No functional changes.

Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Cc: Joachim Eastwood <manabian@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agoparport: use release_mem_region instead of release_resource
Anton Vasilyev [Sat, 12 Aug 2017 21:45:50 +0000 (22:45 +0100)]
parport: use release_mem_region instead of release_resource

Use api pair of request_mem_region and release_mem_region
instead of release_resource.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Anton Vasilyev <vasilyev@ispras.ru>
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agoparport: cleanup statics initialization to NULL or 0
Carlos Palminha [Sat, 12 Aug 2017 21:45:49 +0000 (22:45 +0100)]
parport: cleanup statics initialization to NULL or 0

based on checkpatch, cleanup the "do not initialise statics to" 0 or NULL.

Signed-off-by: Carlos Palminha <palminha@synopsys.com>
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agoparport_pc: use pr_cont
Mikulas Patocka [Sat, 12 Aug 2017 21:45:48 +0000 (22:45 +0100)]
parport_pc: use pr_cont

The kernel adds newline automatically between printk calls, we must use
pr_cont if we want multiple printk strings on the same line.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agodrivers: w1: Add 1w slave driver for DS28E05 EEPROM
Andrew Worsley [Sun, 27 Aug 2017 11:34:23 +0000 (21:34 +1000)]
drivers: w1: Add 1w slave driver for DS28E05 EEPROM

Add a one wire driver for the DS28E05 one wire slave chip. This chip
requires OverDrive support to talk to it.

Signed-off-by: Andrew Worsley <amworsley@gmail.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agodrivers: w1: Extend 1W master driver DS2482 with module option to support PPM/SPU...
Andrew Worsley [Sun, 27 Aug 2017 11:34:22 +0000 (21:34 +1000)]
drivers: w1: Extend 1W master driver DS2482 with module option to support PPM/SPU/1WS features

Extend the one wire DS2482 master driver with a module option that allows support
for PPM/SPU/1WS interface modes to be requested. This allows support of chips
that require one or more of these features such as the DS28E05.

Signed-off-by: Andrew Worsley <amworsley@gmail.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agow1: ds2438: make several functions static
Colin Ian King [Sat, 12 Aug 2017 21:34:03 +0000 (22:34 +0100)]
w1: ds2438: make several functions static

The functions w1_ds2438_get_page, w1_ds2438_get_temperature,
w1_ds2438_change_config_bit and w1_ds2438_get_voltage are local to
the source and do not need to be in global scope, so make it static.

Cleans up sparse warnings:
symbol 'w1_ds2438_get_page' was not declared. Should it be static?
symbol 'w1_ds2438_get_temperature' was not declared. Should it be static?
symbol 'w1_ds2438_change_config_bit' was not declared. Should it be static?
symbol 'w1_ds2438_get_voltage' was not declared. Should it be static?

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agow1: ds1wm: add messages to make incorporation in mfd-drivers easier
Johannes Poehlmann [Tue, 25 Jul 2017 11:27:15 +0000 (13:27 +0200)]
w1: ds1wm: add messages to make incorporation in mfd-drivers easier

w1: ds1wm: add messages to make incorporation in mfd-drivers easier

Signed-off-by: Johannes Poehlmann <johannes.poehlmann@izt-labs.de>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agow1: ds1wm: silence interrupts on HW before claiming the interrupt
Johannes Poehlmann [Tue, 25 Jul 2017 11:27:14 +0000 (13:27 +0200)]
w1: ds1wm: silence interrupts on HW before claiming the interrupt

w1: ds1wm: silence interrupts on HW before claiming the interrupt.
This way avoid possible invalid interrupts in the initialization phase.

Signed-off-by: Johannes Poehlmann <johannes.poehlmann@izt-labs.de>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agow1: ds1wm: add level interrupt modes
Johannes Poehlmann [Tue, 25 Jul 2017 11:27:13 +0000 (13:27 +0200)]
w1: ds1wm: add level interrupt modes

w1: ds1wm: add level interrupt modes

Signed-off-by: Johannes Poehlmann <johannes.poehlmann@izt-labs.de>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agow1: ds1wm: make endian clean and use standard io memory accessors
Johannes Poehlmann [Tue, 25 Jul 2017 11:27:12 +0000 (13:27 +0200)]
w1: ds1wm: make endian clean and use standard io memory accessors

o Make endian clean, make HW-endianness configurable.

o Use ioread*, iowrite* instead of __raw_readb,__raw_writeb
  to also use memory-barriers when accessing HW-registers.
  We do not want reordering to happen here.

Both changes are tightly coupled, so I do them in one patch

Signed-off-by: Johannes Poehlmann <johannes.poehlmann@izt-labs.de>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agow1: ds1wm: fix register offset (bus shift) calculation
Johannes Poehlmann [Tue, 25 Jul 2017 11:27:11 +0000 (13:27 +0200)]
w1: ds1wm: fix register offset (bus shift) calculation

Replace incorrect register offsett calculation by
direct configuration of bus_shift in mfd-cell.

Indirect definition of address-shift by resource size
was unobvious and was wrong (should have used a binary log).

Signed-off-by: Johannes Poehlmann <johannes.poehlmann@izt-labs.de>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agow1: ds2490: constify usb_device_id and fix space before '[' error
Arvind Yadav [Sat, 12 Aug 2017 08:38:02 +0000 (14:08 +0530)]
w1: ds2490: constify usb_device_id and fix space before '[' error

usb_device_id are not supposed to change at runtime. All functions
working with usb_device_id provided by <linux/usb.h> work with
const usb_device_id. So mark the non-const structs as const.

Fix checkpatch.pl error:
ERROR: space prohibited before open square bracket '['.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agochar: tlclk: constify attribute_group structures.
Arvind Yadav [Wed, 2 Aug 2017 11:19:05 +0000 (16:49 +0530)]
char: tlclk: constify attribute_group structures.

attribute_group are not supposed to change at runtime. All functions
working with attribute_group provided by <linux/sysfs.h> work with
const attribute_group. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agow1: constify attribute_group structures.
Arvind Yadav [Fri, 28 Jul 2017 10:30:42 +0000 (16:00 +0530)]
w1: constify attribute_group structures.

attribute_group are not supposed to change at runtime. All functions
working with attribute_group provided by <linux/sysfs.h> work with
const attribute_group. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agodrivers/fsi/scom: Remove reset before every putscom
Edward A. James [Thu, 20 Jul 2017 14:55:32 +0000 (09:55 -0500)]
drivers/fsi/scom: Remove reset before every putscom

Reset causes problems for operations requiring multiple scoms (e.g. i2c
over scom). Instead, reset scom engine during probe.

Signed-off-by: Edward A. James <eajames@us.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agodrivers/fsi: add const to bin_attribute structures
Bhumika Goyal [Wed, 2 Aug 2017 14:09:32 +0000 (19:39 +0530)]
drivers/fsi: add const to bin_attribute structures

Declare bin_attribute structures as const as they are only passed as an
argument to the function device_create_bin_file. This argument is of
type const, so declare the structure as const.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agomux: zap mux- prefix from the source files
Peter Rosin [Tue, 22 Aug 2017 06:27:08 +0000 (08:27 +0200)]
mux: zap mux- prefix from the source files

Preserve the module names with Makefile additions.

Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agomux: include compiler.h from mux/consumer.h
Ulrich Hecht [Tue, 22 Aug 2017 06:27:07 +0000 (08:27 +0200)]
mux: include compiler.h from mux/consumer.h

Required for __must_check.

Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agomux: convert to using %pOF instead of full_name
Rob Herring [Tue, 22 Aug 2017 06:27:06 +0000 (08:27 +0200)]
mux: convert to using %pOF instead of full_name

Now that we have a custom printf format specifier, convert users of
full_name to use %pOF instead. This is preparation to remove storing
of the full path string for each node.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agoapplicom: constify pci_device_id.
Arvind Yadav [Tue, 1 Aug 2017 16:01:57 +0000 (21:31 +0530)]
applicom: constify pci_device_id.

pci_device_id are not supposed to change at runtime. All functions
working with pci_device_id provided by <linux/pci.h> work with
const pci_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agochar: xilinx_hwicap: Fix warnings in the driver
Nava kishore Manne [Fri, 28 Jul 2017 13:17:26 +0000 (15:17 +0200)]
char: xilinx_hwicap: Fix warnings in the driver

This patch fixes the below warning
        --> Use #include <linux/io.h> instead of <asm/io.h>
        --> Use #include <linux/uaccess.h> instead of <asm/uaccess.h>
        --> please, no space before tabs
        --> Block comments use a trailing */ on a separate line
        --> Possible unnecessary 'out of memory' message
        --> Block comments use * on subsequent lines
        --> Block comments use a trailing */ on a separate line
        --> braces {} are not necessary for any arm of this statement
        --> DT compatible string "xlnx,opb-hwicap-1.00.b"
    appears un-documented
        --> DT compatible string "xlnx,xps-hwicap-1.00.a"
            appears un-documented

Signed-off-by: Nava kishore Manne <navam@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agochar: xilinx_hwicap: Fix kernel doc warnings
Nava kishore Manne [Fri, 28 Jul 2017 13:17:25 +0000 (15:17 +0200)]
char: xilinx_hwicap: Fix kernel doc warnings

This patch fixes the kernel doc warnings in the driver.

Signed-off-by: Nava kishore Manne <navam@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agoMerge tag 'extcon-next-for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git...
Greg Kroah-Hartman [Mon, 28 Aug 2017 15:01:04 +0000 (17:01 +0200)]
Merge tag 'extcon-next-for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into char-misc-next

Chanwoo writes:

Update extcon for 4.14

Detailed description for this pull request:
1. Add new 'extcon-usbc-cros-ec.c' driver
- ChromeOS Embedded Controller extcon driver supports
  the detection of the Display Port (EXTCON_DISP_DP)
  through USB C-type and contol it.

2. Update extcon core
- Modify the description for both functions and structures
  in order to improve the readability and give the more correct
  guide about the role of functions because there are different
  explanation even if the same arguments.

- Keep the indentation with tab instead of space

- Remove the following deprecated extcon API. The deprecated API
  are exchanged on all of linux tree.
  : extcon_get_cable_state_() -> extcon_get_state()
  : extcon_set_cable_state_() -> extcon_set_state_sync()

3. Include the two immutable branch as following:
- ib-extcon-mfd-4.14 for the 'extcon-ubsc-cros-ec.c' driver
  because the patches of 'extcon-ubsc-cros-ec.c' touch the MFD directory.
- ib-extcon-usb-phy-4.14 for removing the deprecated extcon API
  because the usb/phy driver usese the deprecated extcon API.
  So, this immutable branch alters the extcon API and then
  remove them from extcon.

4. Fix minor issue of extcon driver
- Fix the MHL detection on extcon-max77693.c
- Convert to using %pOF instead of full_name on extcon.c
- Add 'const' kerywod for acpi_device_id on extcon-intel-int3496.c

7 years agoMerge tag 'stm-for-greg-20170825' of git://git.kernel.org/pub/scm/linux/kernel/git...
Greg Kroah-Hartman [Mon, 28 Aug 2017 14:58:19 +0000 (16:58 +0200)]
Merge tag 'stm-for-greg-20170825' of git://git.kernel.org/pub/scm/linux/kernel/git/ash/stm into char-misc-next

Alexander writes:

stm class / intel_th: Updates for 4.14

Intel TH:
 * Updated subdevice management code to better fit host mode
 * Added support for Low Power Path (LPP) output type
 * Fixed memory allocation with IOMMU enabled (DMAR tables)
 * Added Cannon Lake PCH PCI IDs
 * Added a quirk to force time sync on devices that need it

STM:
 * Fixed potential read overflow in ioctl()
 * Documented stm_ftrace source.

7 years agovmci: fix duplicated code for different branches
Gustavo A. R. Silva [Fri, 18 Aug 2017 01:43:10 +0000 (20:43 -0500)]
vmci: fix duplicated code for different branches

Refactor code in order to avoid identical code for different branches.

This issue was detected with the help of Coccinelle.

Addresses-Coverity-ID: 1226762
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agomisc: apds9802als: constify i2c_device_id
Arvind Yadav [Mon, 21 Aug 2017 16:43:25 +0000 (22:13 +0530)]
misc: apds9802als: constify i2c_device_id

i2c_device_id are not supposed to change at runtime. All functions
working with i2c_device_id provided by <linux/i2c.h> work with
const i2c_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agomisc: hmc6352: constify i2c_device_id
Arvind Yadav [Mon, 21 Aug 2017 16:43:26 +0000 (22:13 +0530)]
misc: hmc6352: constify i2c_device_id

i2c_device_id are not supposed to change at runtime. All functions
working with i2c_device_id provided by <linux/i2c.h> work with
const i2c_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agomisc: isl29020: constify i2c_device_id
Arvind Yadav [Mon, 21 Aug 2017 16:43:27 +0000 (22:13 +0530)]
misc: isl29020: constify i2c_device_id

i2c_device_id are not supposed to change at runtime. All functions
working with i2c_device_id provided by <linux/i2c.h> work with
const i2c_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agomisc: Convert to using %pOF instead of full_name
Rob Herring [Tue, 18 Jul 2017 21:43:15 +0000 (16:43 -0500)]
misc: Convert to using %pOF instead of full_name

Now that we have a custom printf format specifier, convert users of
full_name to use %pOF instead. This is preparation to remove storing
of the full path string for each node.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agomisc: apds9802als: constify attribute_group structures.
Arvind Yadav [Fri, 4 Aug 2017 06:37:52 +0000 (12:07 +0530)]
misc: apds9802als: constify attribute_group structures.

attribute_group are not supposed to change at runtime. All functions
working with attribute_group provided by <linux/sysfs.h> work with
const attribute_group. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agomisc: apds990x: constify attribute_group structures.
Arvind Yadav [Fri, 4 Aug 2017 06:37:53 +0000 (12:07 +0530)]
misc: apds990x: constify attribute_group structures.

attribute_group are not supposed to change at runtime. All functions
working with attribute_group provided by <linux/sysfs.h> work with
const attribute_group. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agomisc: bh1770glc: constify attribute_group structures.
Arvind Yadav [Fri, 4 Aug 2017 06:37:54 +0000 (12:07 +0530)]
misc: bh1770glc: constify attribute_group structures.

attribute_group are not supposed to change at runtime. All functions
working with attribute_group provided by <linux/sysfs.h> work with
const attribute_group. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agomisc: isl29020: constify attribute_group structures.
Arvind Yadav [Fri, 4 Aug 2017 06:37:55 +0000 (12:07 +0530)]
misc: isl29020: constify attribute_group structures.

attribute_group are not supposed to change at runtime. All functions
working with attribute_group provided by <linux/sysfs.h> work with
const attribute_group. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agomisc: lis3lv02d: constify attribute_group structures.
Arvind Yadav [Fri, 4 Aug 2017 06:37:56 +0000 (12:07 +0530)]
misc: lis3lv02d: constify attribute_group structures.

attribute_group are not supposed to change at runtime. All functions
working with attribute_group provided by <linux/sysfs.h> work with
const attribute_group. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agomisc: ti-st: constify attribute_group structures.
Arvind Yadav [Fri, 4 Aug 2017 06:37:57 +0000 (12:07 +0530)]
misc: ti-st: constify attribute_group structures.

attribute_group are not supposed to change at runtime. All functions
working with attribute_group provided by <linux/sysfs.h> work with
const attribute_group. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agoMISC: add const to bin_attribute structures
Bhumika Goyal [Wed, 2 Aug 2017 09:10:06 +0000 (14:40 +0530)]
MISC: add const to bin_attribute structures

Add const to bin_attribute structures as they are only passed to the
functions sysfs_{remove/create}_bin_file. The arguments passed are of
type const, so declare the structures to be const.

Done using Coccinelle.

@m disable optional_qualifier@
identifier s;
position p;
@@
static struct bin_attribute s@p={...};

@okay1@
position p;
identifier m.s;
@@
(
sysfs_create_bin_file(...,&s@p,...)
|
sysfs_remove_bin_file(...,&s@p,...)
)

@bad@
position p!={m.p,okay1.p};
identifier m.s;
@@
s@p

@change depends on !bad disable optional_qualifier@
identifier m.s;
@@
static
+const
struct bin_attribute s={...};

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agomisc: pch_phub: constify pci_device_id.
Arvind Yadav [Sun, 30 Jul 2017 05:26:34 +0000 (10:56 +0530)]
misc: pch_phub: constify pci_device_id.

pci_device_id are not supposed to change at runtime. All functions
working with pci_device_id provided by <linux/pci.h> work with
const pci_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agomisc: hpilo: constify pci_device_id.
Arvind Yadav [Sun, 30 Jul 2017 05:26:35 +0000 (10:56 +0530)]
misc: hpilo: constify pci_device_id.

pci_device_id are not supposed to change at runtime. All functions
working with pci_device_id provided by <linux/pci.h> work with
const pci_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agomisc: tifm: constify pci_device_id.
Arvind Yadav [Sun, 30 Jul 2017 05:26:36 +0000 (10:56 +0530)]
misc: tifm: constify pci_device_id.

pci_device_id are not supposed to change at runtime. All functions
working with pci_device_id provided by <linux/pci.h> work with
const pci_device_id. So mark the non-const structs as const.

checkpatch ERROR: space prohibited before open square bracket '['

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agomisc: ioc4: constify pci_device_id.
Arvind Yadav [Sun, 30 Jul 2017 05:26:37 +0000 (10:56 +0530)]
misc: ioc4: constify pci_device_id.

pci_device_id are not supposed to change at runtime. All functions
working with pci_device_id provided by <linux/pci.h> work with
const pci_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agomisc: eeprom_93xx46: Include <linux/gpio/consumer.h>
Fabio Estevam [Thu, 20 Jul 2017 02:35:29 +0000 (23:35 -0300)]
misc: eeprom_93xx46: Include <linux/gpio/consumer.h>

eeprom_93xx46_platform_data struct has a 'struct gpio_desc'
type member, so it is better to include <linux/gpio/consumer.h>,
which provides 'struct gpio_desc' type.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agomisc: eeprom_93xx46: Simplify the usage of gpiod API
Fabio Estevam [Thu, 20 Jul 2017 02:35:28 +0000 (23:35 -0300)]
misc: eeprom_93xx46: Simplify the usage of gpiod API

Commit 3ca9b1ac28398c ("misc: eeprom_93xx46: Add support for a GPIO
'select' line.") introduced the optional usage of 'select-gpios'
by using the gpiod API in a convoluted way.

Rewrite the gpiod handling to make the code simpler.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agofirmware: vpd: use memunmap instead of iounmap
Pan Bian [Thu, 10 Aug 2017 23:13:13 +0000 (07:13 +0800)]
firmware: vpd: use memunmap instead of iounmap

In functions vpd_sections_init() and vpd_section_init(), iounmap() is
used to unmap memory. However, in these cases, memunmap() should be
used.

Signed-off-by: Pan Bian <bianpan2016@163.com>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agoandroid: binder: Add shrinker tracepoints
Sherry Yang [Wed, 23 Aug 2017 15:46:43 +0000 (08:46 -0700)]
android: binder: Add shrinker tracepoints

Add tracepoints in binder transaction allocator to
record lru hits and alloc/free page.

Signed-off-by: Sherry Yang <sherryy@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agoandroid: binder: Add global lru shrinker to binder
Sherry Yang [Wed, 23 Aug 2017 15:46:42 +0000 (08:46 -0700)]
android: binder: Add global lru shrinker to binder

Hold on to the pages allocated and mapped for transaction
buffers until the system is under memory pressure. When
that happens, use linux shrinker to free pages. Without
using shrinker, patch "android: binder: Move buffer out
of area shared with user space" will cause a significant
slow down for small transactions that fit into the first
page because free list buffer header used to be inlined
with buffer data.

In addition to prevent the performance regression for
small transactions, this patch improves the performance
for transactions that take up more than one page.

Modify alloc selftest to work with the shrinker change.

Test: Run memory intensive applications (Chrome and Camera)
to trigger shrinker callbacks. Binder frees memory as expected.
Test: Run binderThroughputTest with high memory pressure
option enabled.

Signed-off-by: Sherry Yang <sherryy@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agoandroid: binder: Move buffer out of area shared with user space
Sherry Yang [Wed, 23 Aug 2017 15:46:41 +0000 (08:46 -0700)]
android: binder: Move buffer out of area shared with user space

Binder driver allocates buffer meta data in a region that is mapped
in user space. These meta data contain pointers in the kernel.

This patch allocates buffer meta data on the kernel heap that is
not mapped in user space, and uses a pointer to refer to the data mapped.

Signed-off-by: Sherry Yang <sherryy@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agoandroid: binder: Add allocator selftest
Sherry Yang [Wed, 23 Aug 2017 15:46:40 +0000 (08:46 -0700)]
android: binder: Add allocator selftest

binder_alloc_selftest tests that alloc_new_buf handles page allocation and
deallocation properly when allocate and free buffers. The test allocates 5
buffers of various sizes to cover all possible page alignment cases, and
frees the buffers using a list of exhaustive freeing order.

Test: boot the device with ANDROID_BINDER_IPC_SELFTEST config option
enabled. Allocator selftest passes.

Signed-off-by: Sherry Yang <sherryy@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agoandroid: binder: Refactor prev and next buffer into a helper function
Sherry Yang [Wed, 23 Aug 2017 15:46:39 +0000 (08:46 -0700)]
android: binder: Refactor prev and next buffer into a helper function

Use helper functions buffer_next and buffer_prev instead
of list_entry to get the next and previous buffers.

Signed-off-by: Sherry Yang <sherryy@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agodrivers/fmc: carrier can program FPGA on registration
Federico Vaga [Tue, 18 Jul 2017 06:33:24 +0000 (08:33 +0200)]
drivers/fmc: carrier can program FPGA on registration

The initial FPGA may require programming before it is useful.

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>
Tested-by: Pat Riehecky <riehecky@fnal.gov>
Acked-by: Alessandro Rubini <rubini@gnudd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agodrivers/fmc: change registration prototype
Federico Vaga [Tue, 18 Jul 2017 06:33:13 +0000 (08:33 +0200)]
drivers/fmc: change registration prototype

Permit use of either fmc_device_register_n or fmc_device_register_n_gw
depending on the type of device in use.

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>
Tested-by: Pat Riehecky <riehecky@fnal.gov>
Acked-by: Alessandro Rubini <rubini@gnudd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agodrivers/fmc: The only way to dump the SDB is from debugfs
Federico Vaga [Tue, 18 Jul 2017 06:33:03 +0000 (08:33 +0200)]
drivers/fmc: The only way to dump the SDB is from debugfs

Driver should not call fmc_sdb_dump() anymore. (actually they can but the
operation is not supported, so it will print an error message)

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>
Tested-by: Pat Riehecky <riehecky@fnal.gov>
Acked-by: Alessandro Rubini <rubini@gnudd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agodrivers/fmc: hide fmc operations behind helpers
Federico Vaga [Tue, 18 Jul 2017 06:32:53 +0000 (08:32 +0200)]
drivers/fmc: hide fmc operations behind helpers

This gave us more freedom to change/add/remove operations without
recompiling all device driver.

Typically, Carrier board implement the fmc operations, so they will not
use these helpers.

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>
Tested-by: Pat Riehecky <riehecky@fnal.gov>
Acked-by: Alessandro Rubini <rubini@gnudd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agodrivers/fmc: remove unused variable
Federico Vaga [Tue, 18 Jul 2017 06:32:42 +0000 (08:32 +0200)]
drivers/fmc: remove unused variable

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>
Tested-by: Pat Riehecky <riehecky@fnal.gov>
Acked-by: Alessandro Rubini <rubini@gnudd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agothunderbolt: Fix reset response_type
Dan Carpenter [Wed, 16 Aug 2017 08:54:17 +0000 (11:54 +0300)]
thunderbolt: Fix reset response_type

There is a mistake here where we accidentally use sizeof(TB_CFG_PKG_RESET)
instead of just TB_CFG_PKG_RESET.  The size of an int is 4 so it's the
same as TB_CFG_PKG_NOTIFY_ACK.

Fixes: d7f781bfdbf4 ("thunderbolt: Rework control channel to be more reliable")
Reported-by: Colin King <colin.king@canonical.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: stable <stable@vger.kernel.org> # 4.13
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agothunderbolt: Allow clearing the key
Bernat, Yehezkel [Tue, 15 Aug 2017 05:19:20 +0000 (08:19 +0300)]
thunderbolt: Allow clearing the key

If secure authentication of a devices fails, either because the device
already has another key uploaded, or there is some other error sending
challenge to the device, and the user only wants to approve the device
just once (without a new key being uploaded to the device) the current
implementation does not allow this because the key cannot be cleared
once set even if we allow it to be changed.

Make this scenario possible and allow clearing the key by writing
empty string to the key sysfs file.

Signed-off-by: Yehezkel Bernat <yehezkel.bernat@intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agothunderbolt: Make key root-only accessible
Bernat, Yehezkel [Tue, 15 Aug 2017 05:19:12 +0000 (08:19 +0300)]
thunderbolt: Make key root-only accessible

Non-root user may read the key back after root wrote it there.
This removes read access to everyone but root.

Signed-off-by: Yehezkel Bernat <yehezkel.bernat@intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agothunderbolt: Remove superfluous check
Bernat, Yehezkel [Tue, 15 Aug 2017 05:19:01 +0000 (08:19 +0300)]
thunderbolt: Remove superfluous check

The key size is tested by hex2bin() already (as '\0' isn't an hex digit)

Suggested-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Yehezkel Bernat <yehezkel.bernat@intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agocoresight: constify amba_id
Arvind Yadav [Thu, 24 Aug 2017 16:35:57 +0000 (22:05 +0530)]
coresight: constify amba_id

amba_id are not supposed to change at runtime. All functions
working with const amba_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agocoresight: etb10: constify amba_id
Arvind Yadav [Thu, 24 Aug 2017 16:35:58 +0000 (22:05 +0530)]
coresight: etb10: constify amba_id

amba_id are not supposed to change at runtime. All functions
working with const amba_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agocoresight: etm3x: constify amba_id
Arvind Yadav [Thu, 24 Aug 2017 16:35:59 +0000 (22:05 +0530)]
coresight: etm3x: constify amba_id

amba_id are not supposed to change at runtime. All functions
working with const amba_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agocoresight: etm4x: constify amba_id
Arvind Yadav [Thu, 24 Aug 2017 16:36:00 +0000 (22:06 +0530)]
coresight: etm4x: constify amba_id

amba_id are not supposed to change at runtime. All functions
working with const amba_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agocoresight: funnel: constify amba_id
Arvind Yadav [Thu, 24 Aug 2017 16:36:01 +0000 (22:06 +0530)]
coresight: funnel: constify amba_id

amba_id are not supposed to change at runtime. All functions
working with const amba_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agocoresight: replicator: constify amba_id
Arvind Yadav [Thu, 24 Aug 2017 16:36:02 +0000 (22:06 +0530)]
coresight: replicator: constify amba_id

amba_id are not supposed to change at runtime. All functions
working with const amba_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agocoresight: stm: constify amba_id
Arvind Yadav [Thu, 24 Aug 2017 16:36:03 +0000 (22:06 +0530)]
coresight: stm: constify amba_id

amba_id are not supposed to change at runtime. All functions
working with const amba_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agocoresight: tmc: constify amba_id
Arvind Yadav [Thu, 24 Aug 2017 16:36:04 +0000 (22:06 +0530)]
coresight: tmc: constify amba_id

amba_id are not supposed to change at runtime. All functions
working with const amba_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agocoresight: tpiu: constify amba_id
Arvind Yadav [Thu, 24 Aug 2017 16:36:05 +0000 (22:06 +0530)]
coresight: tpiu: constify amba_id

amba_id are not supposed to change at runtime. All functions
working with const amba_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agocoresight: STM: Clean up __iomem type usage
Stephen Boyd [Wed, 2 Aug 2017 16:22:20 +0000 (10:22 -0600)]
coresight: STM: Clean up __iomem type usage

The casting and other things here is odd, and causes sparse to
complain:

drivers/hwtracing/coresight/coresight-stm.c:279:35: warning: incorrect type in argument 1 (different address spaces)
drivers/hwtracing/coresight/coresight-stm.c:279:35:    expected void [noderef] <asn:2>*addr
drivers/hwtracing/coresight/coresight-stm.c:279:35:    got struct stm_drvdata *drvdata
drivers/hwtracing/coresight/coresight-stm.c:327:17: warning: incorrect type in argument 2 (different address spaces)
drivers/hwtracing/coresight/coresight-stm.c:327:17:    expected void volatile [noderef] <asn:2>*addr
drivers/hwtracing/coresight/coresight-stm.c:327:17:    got void *addr
drivers/hwtracing/coresight/coresight-stm.c:330:17: warning: incorrect type in argument 2 (different address spaces)
drivers/hwtracing/coresight/coresight-stm.c:330:17:    expected void volatile [noderef] <asn:2>*addr
drivers/hwtracing/coresight/coresight-stm.c:330:17:    got void *addr
drivers/hwtracing/coresight/coresight-stm.c:333:17: warning: incorrect type in argument 2 (different address spaces)
drivers/hwtracing/coresight/coresight-stm.c:333:17:    expected void volatile [noderef] <asn:2>*addr
drivers/hwtracing/coresight/coresight-stm.c:333:17:    got void *addr

>From what I can tell, we don't really need to treat ch_addr as
anything besides a pointer, and we can just do pointer math
instead of ORing in the bits of the offset and achieve the same
thing.

Also, we were passing a drvdata pointer to the
coresight_timeout() function, but we really wanted to pass the
address of the register base. Luckily the base is the first
member of the structure, so everything works out, but this is
quite unsafe if we ever change the structure layout. Clean this
all up so sparse stops complaining on this code.

Reported-by: Satyajit Desai <sadesai@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agocoresight: Add support for Coresight SoC 600 components
Suzuki K Poulose [Wed, 2 Aug 2017 16:22:18 +0000 (10:22 -0600)]
coresight: Add support for Coresight SoC 600 components

Add the peripheral ids for the Coresight SoC 600 TPIU, replicator
and funnel.

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agocoresight tmc: Add support for Coresight SoC 600 TMC
Suzuki K Poulose [Wed, 2 Aug 2017 16:22:17 +0000 (10:22 -0600)]
coresight tmc: Add support for Coresight SoC 600 TMC

The coresight SoC 600 supports ETR save-restore which allows us
to restore a trace session by retaining the RRP/RWP/STS.Full values
when the TMC leaves the Disabled state. However, the TMC doesn't
have a scatter-gather unit in built.

Also, TMCs have different PIDs in different configurations (ETF,
ETB & ETR), unlike the previous generation.

While the DEVID exposes some of the features/changes in the TMC,
it doesn't explicitly advertises the new save-restore feature
as described above.

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agocoresight tmc: Support for save-restore in ETR
Suzuki K Poulose [Wed, 2 Aug 2017 16:22:16 +0000 (10:22 -0600)]
coresight tmc: Support for save-restore in ETR

The Coresight SoC 600 TMC ETR supports save-restore feature,
where the values of the RRP/RWP and STS.Full are retained
when it leaves the Disabled state. Hence, we must program the
RRP/RWP and STS.Full to a proper value. For now, set the RRP/RWP
to the base address of the buffer and clear the STS.Full register.
This can be later exploited for proper save-restore of ETR
trace contexts (e.g, perf).

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agocoresight tmc etr: Setup AXI cache encoding for read transfers
Suzuki K Poulose [Wed, 2 Aug 2017 16:22:15 +0000 (10:22 -0600)]
coresight tmc etr: Setup AXI cache encoding for read transfers

If the ETR supports split cache encoding (i.e, separate bits for
read and write transfers) unlike the older version (where read
and write transfers use the same encoding in AXICTL[2-5]).
This feature is not advertised and has to be described by the
static mask associated with the device id.

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agocoresight tmc etr: Cleanup AXICTL register handling
Suzuki K Poulose [Wed, 2 Aug 2017 16:22:14 +0000 (10:22 -0600)]
coresight tmc etr: Cleanup AXICTL register handling

This patch cleans up how we setup the AXICTL register on
TMC ETR. At the moment we don't set the CacheCtrl bits, which
drives the arcache and awcache bits on AXI bus specifying the
cacheablitiy. Set this to Write-back Read and Write-allocate.

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agocoresight tmc etr: Detect address width at runtime
Suzuki K Poulose [Wed, 2 Aug 2017 16:22:13 +0000 (10:22 -0600)]
coresight tmc etr: Detect address width at runtime

TMC in Coresight SoC-600 advertises the AXI address width
in the device configuration register.

Bit 16 - AXIAW_VALID
 0 - AXI Address Width not valid
 1 - Valid AXI Address width in Bits[23-17]

Bits [23-17] - AXIAW. If AXIAW_VALID = b01 then
 0x20 - 32bit AXI address bus
 0x28 - 40bit AXI address bus
 0x2c - 44bit AXI address bus
 0x30 - 48bit AXI address bus
 0x34 - 52bit AXI address bus

Use the address bits from the device configuration register, if
available. Otherwise, default to 40bit.

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agocoresight tmc: Detect support for scatter gather
Suzuki K Poulose [Wed, 2 Aug 2017 16:22:12 +0000 (10:22 -0600)]
coresight tmc: Detect support for scatter gather

The SG unit in the TMC has been removed in Coresight SoC-600.
This is however advertised by DEVID:Bit 24 = 0b1. On the
previous generation, the bit is RES0, hence we can rely on the
DEVID to detect the support.

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agocoresight tmc etr: Add capabilitiy information
Suzuki K Poulose [Wed, 2 Aug 2017 16:22:11 +0000 (10:22 -0600)]
coresight tmc etr: Add capabilitiy information

With new version of TMC ETR, there are differing set of
features supported by the TMC. Add the capability of a
given TMC ETR for making safer decisions at runtime.

The device configuration register of the TMC (DEVID) lists
some of the capabilities. So, we can detect some of them at
probe. However, some of the features (or changes in behavior)
are not advertised and we have to depend on the PID to infer
the features. So we use a static description of the "unadvertised"
capabilities attached to the PID. Combining both, the static
and the dynamic capabilities, we maintain a bitmask of the
available features which can be later checked to take
appropriate actions.

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agocoresight tmc: Handle configuration types properly
Suzuki K Poulose [Wed, 2 Aug 2017 16:22:10 +0000 (10:22 -0600)]
coresight tmc: Handle configuration types properly

Coresight SoC 600 defines a new configuration for TMC, Embedded Trace
Streamer (ETS), indicated by 0x3 in MODE:CONFIG_TYPE. This would break
the existing driver which will treat anything other than ETR/ETB as an
ETF. Fix the driver to check the configuration type properly and also
add a warning if we encounter an unsupported configuration (ETS).

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agocoresight replicator: Expose replicator management registers
Suzuki K Poulose [Wed, 2 Aug 2017 16:22:09 +0000 (10:22 -0600)]
coresight replicator: Expose replicator management registers

Expose the idfilter* registers of the programmable replicator.

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7 years agocoresight tmc: Expose DBA and AXICTL
Suzuki K Poulose [Wed, 2 Aug 2017 16:22:08 +0000 (10:22 -0600)]
coresight tmc: Expose DBA and AXICTL

Expose DBALO,DBAHI and AXICTL registers

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>