This patch adds the PCI Device id for Power Management Controller on Intel
Apollo Lake platforms.

Intel PMC IPC Driver loads as a platform driver on Apollo Lake platforms
since Intel BIOS hides the PCI Configuration space for 0:13:1 and
re-enumerates it as ACPI device (INT34D2). The correct PCI Device ID should
be added if some platform firmware choses to enumerate the device via PCI
space.
Signed-off-by: NRajneesh Bhardwaj <rajneesh.bhardwaj@intel.com>
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

This patch adds a new API to indicate S0ix residency in usec. It utilizes
the PMC Global Control Registers (GCR) to read deep and shallow
S0ix residency.

PMC MMIO resources:
        o Lower 4kB: IPC1 (PMC inter-processor communication) interface
        o Upper 4kB: GCR (Global Control Registers)

This enables the power management framework to take corrective actions when
the platform fails to enter S0ix after kernel freeze as part of the suspend
to idle flow. (echo freeze > /sys/power/state).

This is expected to be used with a S0ix failsafe framework such as:
<https://lwn.net/Articles/689505/>

[rajneesh: folded in "fix division in 32-bit case" from Andy Shevchenko]
Signed-off-by: NRajneesh Bhardwaj <rajneesh.bhardwaj@intel.com>
Signed-off-by: NShanth Murthy <shanth.murthy@intel.com>
[andy: fixed kbuild error, removed "total" from variables, fixed macro]
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

No need to #include <linux/acpi.h> twice. Remove second occurrence.
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

On older Intel MID platforms is using SCU IPC library beneath MSIC
calls.

To make access unified between old and new platforms use SCU IPC library
directly. It's safe since serialization is done in the library.
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

The IRQ on Intel Merrifield can be acknowledged in the similar way it's
done for previous MID platforms. Unify acknowledgment via SCU IPC.
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

The comments is about initial interrupt acknowledgment only. So, move it
back to where it belongs.
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

The status register on Intel Merrifield can be read in the similar way
it's done for previous MID platforms. Unify access to PBSTATUS register
via SCU IPC.
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

pmc_core_mtpmc_link_status() an pmc_core_check_read_lock_bit() use
test_bit() on local 32-bit variable. This causes out-of-bounds
access since test_bit() expects object at least of 'unsigned long' size:

   BUG: KASAN: stack-out-of-bounds in pmc_core_probe+0x3aa/0x3b0
    Call Trace:
     __asan_report_load_n_noabort+0x5c/0x80
     pmc_core_probe+0x3aa/0x3b0
     local_pci_probe+0xf9/0x1e0
     pci_device_probe+0x27b/0x350
     driver_probe_device+0x419/0x830
     __driver_attach+0x15f/0x1d0
     bus_for_each_dev+0x129/0x1d0
     driver_attach+0x42/0x70
     bus_add_driver+0x385/0x690
     driver_register+0x1a9/0x3d0
     __pci_register_driver+0x1a2/0x290
     intel_pmc_core_driver_init+0x19/0x1b
     do_one_initcall+0x12e/0x280
     kernel_init_freeable+0x57c/0x623
     kernel_init+0x13/0x140
     ret_from_fork+0x2e/0x40

Fix this by open coding bit test. While at it, also refactor this code
a little bit.

Fixes: 173943b3 ("platform/x86: intel_pmc_core: ModPhy core lanes pg status")
Signed-off-by: NAndrey Ryabinin <aryabinin@virtuozzo.com>
[andy: reverted not related changes, used BIT() macro]
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

The new driver cannot be a loadable module, so if I2C is loadable, we get this
link error:

drivers/platform/built-in.o: In function `silead_ts_dmi_init':
silead_dmi.c:(.init.text+0x2ef): undefined reference to `i2c_bus_type'

This makes the Kconfig dependency stricter to require I2C=y.

Fixes: 9eeda3897a85 ("platform/x86: add support for devices with Silead touchscreens")
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

On ACPI based tablets, the ACPI touchscreen node only contains info on
the gpio and the irq, and is missing any info on the axis. This info is
expected to be built into the tablet model specific version of the driver
shipped with the os-image for the device.

Add support for getting the missing info from a table built into the
driver, using dmi data to identify which entry of the table to use and
add info for the CUBE iwork8 Air and Jumper EZpad mini3 tablets on which
this code was tested / developed.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=187531Signed-off-by: NHans de Goede <hdegoede@redhat.com>
[dmitry.torokhov@gmail.com: Move to platform/x86]
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: NAndy Shevchenko <andy.shevchenko@gmail.com>
[andy: fixed merge conflict]
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

The snail address is subject to change. This already happened once.
Remove the address completely from the file to avoid potential noise
when update.

While here, adjust copyright years and list authors.
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

Sort header inclusion block in alphabetical order.
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

There is no need and bad practice for debugging to split string
literals. Join them back.
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

Enable this driver to handle events from Basin Cove PMIC, which is
installed on Intel Merrifield platform.
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

Some platforms require interrupt to be acknowledged by clearing
MSIC_PWRBTNM bit in interrupt level 1 mask register.
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

Move Intel Medfield specific code to another callback, which will be
used later.
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

This is preparatory patch to extend the driver in order to support other
Intel MID platform.

Here the new driver data structure is introduced with split of
->pbstat() callback.
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

Replace all occurrences of mfld by mid to emphasize that driver is used
for Intel MID platforms.
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

Convert driver to use managed resources.
This eliminates error path boilerplate and makes code neat.
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

On platforms supporting Intel Turbo Boost Max Technology 3.0, the
maximum turbo frequencies (turbo ratio) of some cores in a CPU package
may be higher than the other cores in the same package.  In that case,
better performance can be achieved by making the scheduler prefer to run
tasks on the CPUs with higher max turbo frequencies.

On Intel® Broadwell Xeon systems, it is optional to turn on HWP
(Hardware P-States). When HWP is not turned on, the BIOS doesn't
present required CPPC (Collaborative Processor Performance Control)
tables. This table is used to get the per CPU core maximum performance
ratio and inform scheduler (in cpufreq/intel_pstate driver).

On such systems the maximum performance ratio can be read via over
clocking (OC) mailbox interface for each CPU. This interface is not
architectural and can change for every model of processors.

This driver reads maximum performance ratio of each CPU and set up
the scheduler priority metrics. In this way scheduler can prefer CPU
with higher performance to schedule tasks.
Signed-off-by: NSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: NDarren Hart <dvhart@linux.intel.com>

Make two minor tweaks to acpi_fujitsu_hotkey_press() to make it more
similar to acpi_fujitsu_hotkey_release():

  * call vdbg_printk() after reporting the input event,
  * return immediately when kfifo_in_locked() fails.
Signed-off-by: NMichał Kępień <kernel@kempniu.pl>
Acked-by: NJonathan Woithe <jwoithe@just42.net>
Signed-off-by: NDarren Hart <dvhart@linux.intel.com>

The loop condition in acpi_fujitsu_hotkey_release() includes an
assignment, a four-argument function call and a comparison, making it
hard to read.  Separate the assignment from the comparison to improve
readability.
Signed-off-by: NMichał Kępień <kernel@kempniu.pl>
Acked-by: NJonathan Woithe <jwoithe@just42.net>
Signed-off-by: NDarren Hart <dvhart@linux.intel.com>

acpi_fujitsu_hotkey_notify() is pretty deeply nested, which hurts
readability.  Move the keycode processing part to two separate functions
to make the code easier to understand and save a few line breaks.
Rename variable keycode_r to keycode as there is no longer any need to
differentiate between the two.  Tweak indentations to make checkpatch
happy.
Signed-off-by: NMichał Kępień <kernel@kempniu.pl>
Acked-by: NJonathan Woithe <jwoithe@just42.net>
Signed-off-by: NDarren Hart <dvhart@linux.intel.com>

acpi_fujitsu_hotkey_notify() is pretty deeply nested, which hurts
readability.  Strip off one level of indentation by returning early when
the event code supplied as argument is not ACPI_FUJITSU_NOTIFY_CODE1.
Signed-off-by: NMichał Kępień <kernel@kempniu.pl>
Acked-by: NJonathan Woithe <jwoithe@just42.net>
Signed-off-by: NDarren Hart <dvhart@linux.intel.com>

Now that call_fext_func() is invoked by logolamp_set() for both
LOGOLAMP_POWERON and LOGOLAMP_ALWAYS for every brightness value,
logolamp_get() can be simplified to decrease indentation and number of
local variables.
Signed-off-by: NMichał Kępień <kernel@kempniu.pl>
Acked-by: NJonathan Woithe <jwoithe@just42.net>
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

Potential errors returned by some call_fext_func() calls inside
logolamp_set() are currently ignored.  Rework logolamp_set() to properly
handle them.  This causes one more call_fext_func() call to be made in
the LED_OFF case, though one could argue that this is logically the
right thing to do (even though the extra call is not needed to shut the
LED off).
Signed-off-by: NMichał Kępień <kernel@kempniu.pl>
Acked-by: NJonathan Woithe <jwoithe@just42.net>
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

Dell-smbios is a helper module, it serves no purpose on its own, so
do not present it as an option to the user. Instead, select it
automatically whenever a driver which needs it is selected.

Also select DCDBAS as needed, instead of depending on it, so that
the Dell driver options are always visible.

As a clean-up, I removed the "default n" statements as they are not
needed (n is the default default.)
Signed-off-by: NJean Delvare <jdelvare@suse.de>
Cc: Michał Kępień <kernel@kempniu.pl>
Cc: Pali Rohár <pali.rohar@gmail.com>
Cc: Darren Hart <dvhart@infradead.org>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

iTCO_version was there since the driver was introduced but never used.
Drop it.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

If the driver is built as a module, autoload won't work because the module
alias information is not filled. So user-space can't match the registered
device with the corresponding module.

Export the module alias information using the MODULE_DEVICE_TABLE() macro.

Before this patch:

$ modinfo drivers/platform/x86/intel_mid_thermal.ko | grep alias
$

After this patch:

$ modinfo drivers/platform/x86/intel_mid_thermal.ko | grep alias
alias:          platform:msic_thermal
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

Commit 3fca3d3d ("platform-x86: intel_mid_thermal: add msic_thermal
alias") added a "msic_thermal" entry to the driver's platform device ID
table since that was the platform dev name registered in some platforms
and the only dev in the platform table was "msic_sensor" (DRIVER_NAME).

But then commit 63483070 ("x86/mid/thermal: Add msic_thermal alias")
changed DRIVER_NAME from "msic_sensor" to "msic_thermal", and so there's
now duplicated entries in the platform device ID table.
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

The patch contains several styling fixes:
  - Make names of hotplug devices shorter;
  - Change register offset assignment to defines;
  - Add defines for the all event masks;
  - Use PLATFORM_DEVID_NONE instead of -1;
Signed-off-by: NVadim Pasternak <vadimp@mellanox.com>
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

HP ZBook 17 laptop needs a non-standard mapping (xy_swap_yz_inverted).
Signed-off-by: NLadislav Michl <ladis@linux-mips.org>
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

The accelerometer event relies on the ACERWMID_EVENT_GUID notify.
So, this patch changes the codes to setup accelerometer input device
when detected ACERWMID_EVENT_GUID. It avoids that the accel input
device created on every Acer machines.

In addition, patch adds a clearly parsing logic of accelerometer hid
to acer_wmi_get_handle_cb callback function. It is positive matching
the "SENR" name with "BST0001" device to avoid non-supported hardware.
Reported-by: NBjørn Mork <bjorn@mork.no>
Cc: Darren Hart <dvhart@infradead.org>
Signed-off-by: NLee, Chun-Yi <jlee@suse.com>
[andy: slightly massage commit message]
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

The "radio components indicator" LED present in Lifebook E734/E744/E754
should be lit when any radio transmitter is enabled, so set its default
trigger to rfkill-any.
Signed-off-by: NMichał Kępień <kernel@kempniu.pl>
Acked-by: NJonathan Woithe <jwoithe@just42.net>
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

I've seen this trigger twice now, where the i915_gem_object_to_ggtt()
call in intel_unpin_fb_obj() returns NULL, resulting in an oops
immediately afterwards as the (inlined) call to i915_vma_unpin_fence()
tries to dereference it.

It seems to be some race condition where the object is going away at
shutdown time, since both times happened when shutting down the X
server.  The call chains were different:

 - VT ioctl(KDSETMODE, KD_TEXT):

    intel_cleanup_plane_fb+0x5b/0xa0 [i915]
    drm_atomic_helper_cleanup_planes+0x6f/0x90 [drm_kms_helper]
    intel_atomic_commit_tail+0x749/0xfe0 [i915]
    intel_atomic_commit+0x3cb/0x4f0 [i915]
    drm_atomic_commit+0x4b/0x50 [drm]
    restore_fbdev_mode+0x14c/0x2a0 [drm_kms_helper]
    drm_fb_helper_restore_fbdev_mode_unlocked+0x34/0x80 [drm_kms_helper]
    drm_fb_helper_set_par+0x2d/0x60 [drm_kms_helper]
    intel_fbdev_set_par+0x18/0x70 [i915]
    fb_set_var+0x236/0x460
    fbcon_blank+0x30f/0x350
    do_unblank_screen+0xd2/0x1a0
    vt_ioctl+0x507/0x12a0
    tty_ioctl+0x355/0xc30
    do_vfs_ioctl+0xa3/0x5e0
    SyS_ioctl+0x79/0x90
    entry_SYSCALL_64_fastpath+0x13/0x94

 - i915 unpin_work workqueue:

    intel_unpin_work_fn+0x58/0x140 [i915]
    process_one_work+0x1f1/0x480
    worker_thread+0x48/0x4d0
    kthread+0x101/0x140

and this patch purely papers over the issue by adding a NULL pointer
check and a WARN_ON_ONCE() to avoid the oops that would then generally
make the machine unresponsive.

Other callers of i915_gem_object_to_ggtt() seem to also check for the
returned pointer being NULL and warn about it, so this clearly has
happened before in other places.

[ Reported it originally to the i915 developers on Jan 8, applying the
  ugly workaround on my own now after triggering the problem for the
  second time with no feedback.

  This is likely to be the same bug reported as

     https://bugs.freedesktop.org/show_bug.cgi?id=98829
     https://bugs.freedesktop.org/show_bug.cgi?id=99134

  which has a patch for the underlying problem, but it hasn't gotten to
  me, so I'm applying the workaround. ]

Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Pull two parisc fixes from Helge Deller:
 "One fix to avoid usage of BITS_PER_LONG in user-space exported swab.h
  header which breaks compiling qemu, and one trivial fix for printk
  continuation in the parisc parport driver"

* 'parisc-4.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: Don't use BITS_PER_LONG in userspace-exported swab.h header
  parisc, parport_gsc: Fixes for printk continuation lines

Pull i2c fixes from Wolfram Sang:
 "Two I2C driver bugfixes.

  The 'VLLS mode support' patch should have been entitled 'reconfigure
  pinctrl after suspend' to make the bugfix more clear. Sorry, I missed
  that, yet didn't want to rebase"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: imx-lpi2c: add VLLS mode support
  i2c: i2c-cadence: Initialize configuration before probing devices

In swab.h the "#if BITS_PER_LONG > 32" breaks compiling userspace programs if
BITS_PER_LONG is #defined by userspace with the sizeof() compiler builtin.

Solve this problem by using __BITS_PER_LONG instead.  Since we now
#include asm/bitsperlong.h avoid further potential userspace pollution
by moving the #define of SHIFT_PER_LONG to bitops.h which is not
exported to userspace.

This patch unbreaks compiling qemu on hppa/parisc.
Signed-off-by: NHelge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org>

Signed-off-by: NHelge Deller <deller@gmx.de>