Граф коммитов

1724 Коммитов

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Linus Torvalds f9677375b0 Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull Intel Quark SoC support from Ingo Molnar:
 "This adds support for Intel Quark X1000 SoC boards, used in the low
  power 32-bit x86 Intel Galileo microcontroller board intended for the
  Arduino space.

  There's been some preparatory core x86 patches for Quark CPU quirks
  merged already, but this rounds it all up and adds Kconfig enablement.
  It's a clean hardware enablement addition tree at this point"

* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/intel/quark: Fix simple_return.cocci warnings
  x86/intel/quark: Fix ptr_ret.cocci warnings
  x86/intel/quark: Add Intel Quark platform support
  x86/intel/quark: Add Isolated Memory Regions for Quark X1000
2015-02-21 11:12:07 -08:00
Linus Torvalds 6ed3e57fd2 platform-drivers-x86 for 3.20
toshiba_acpi: Add support for missing features from the Windows driver,
               bump the sysfs version, and clean up the driver.
 thinkpad_acpi: BIOS string versions, unhandled hkey events.
 samsung-laptop: Add native backlight quirk, enable better lid handling.
 intel_scu_ipc: Read resources from PCI configuration
 other: Fix sparse warnings, general cleanups.
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Merge tag 'platform-drivers-x86-v3.20-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86

Pull platform driver update from Darren Hart:
 "This includes a significant update to the toshiba_acpi driver,
  bringing it to feature parity with the Windows driver, followed by
  some needed cleanups.

  The other changes are mostly minor updates, quirks, sparse fixes, or
  cleanups.

  Details:

   - toshiba_acpi:
       Add support for missing features from the Windows driver, bump the
       sysfs version, and clean up the driver.

   - thinkpad_acpi:
       BIOS string versions, unhandled hkey events.

   - msamsung-laptop:
       Add native backlight quirk, enable better lid handling.

   - intel_scu_ipc:
       Read resources from PCI configuration

   - other:
       Fix sparse warnings, general cleanups"

* tag 'platform-drivers-x86-v3.20-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86: (34 commits)
  toshiba_acpi: Cleanup GPL header
  toshiba_acpi: Cleanup comment blocks and capitalization
  toshiba_acpi: Make use of DEVICE_ATTR_{RO, RW} macros
  toshiba_acpi: Drop the toshiba_ prefix from sysfs function names
  toshiba_acpi: Move sysfs function and struct declarations further down
  Documentation/ABI: Add file describing the sysfs entries for toshiba_acpi
  toshiba_acpi: Clean file according to coding style
  toshiba_acpi: Bump version number to 0.21
  toshiba_acpi: Add support to enable/disable USB 3
  toshiba_acpi: Add support for Panel Power ON
  toshiba_acpi: Add support for Keyboard functions mode
  toshiba_acpi: Add fan entry to sysfs
  toshiba_acpi: Add version entry to sysfs
  thinkpad_acpi: support new BIOS version string pattern
  thinkpad_acpi: unhandled hkey event
  toshiba_acpi: Make toshiba_eco_mode_available more robust
  classmate-laptop: Fix sparse warning (0 as NULL)
  Sony-laptop: Fix sparse warning (make undeclared var static)
  thinkpad_acpi.c: Fix sparse warning (make undeclared var static)
  samsung-laptop.c: Prefer kstrtoint over single variable sscanf
  ...
2015-02-19 10:56:51 -08:00
Bryan O'Donoghue 28a375df16 x86/intel/quark: Add Isolated Memory Regions for Quark X1000
Intel's Quark X1000 SoC contains a set of registers called
Isolated Memory Regions. IMRs are accessed over the IOSF mailbox
interface. IMRs are areas carved out of memory that define
read/write access rights to the various system agents within the
Quark system. For a given agent in the system it is possible to
specify if that agent may read or write an area of memory
defined by an IMR with a granularity of 1 KiB.

Quark_SecureBootPRM_330234_001.pdf section 4.5 details the
concept of IMRs quark-x1000-datasheet.pdf section 12.7.4 details
the implementation of IMRs in silicon.

eSRAM flush, CPU Snoop write-only, CPU SMM Mode, CPU non-SMM
mode, RMU and PCIe Virtual Channels (VC0 and VC1) can have
individual read/write access masks applied to them for a given
memory region in Quark X1000. This enables IMRs to treat each
memory transaction type listed above on an individual basis and
to filter appropriately based on the IMR access mask for the
memory region. Quark supports eight IMRs.

Since all of the DMA capable SoC components in the X1000 are
mapped to VC0 it is possible to define sections of memory as
invalid for DMA write operations originating from Ethernet, USB,
SD and any other DMA capable south-cluster component on VC0.
Similarly it is possible to mark kernel memory as non-SMM mode
read/write only or to mark BIOS runtime memory as SMM mode
accessible only depending on the particular memory footprint on
a given system.

On an IMR violation Quark SoC X1000 systems are configured to
reset the system, so ensuring that the IMR memory map is
consistent with the EFI provided memory map is critical to
ensure no IMR violations reset the system.

The API for accessing IMRs is based on MTRR code but doesn't
provide a /proc or /sys interface to manipulate IMRs. Defining
the size and extent of IMRs is exclusively the domain of
in-kernel code.

Quark firmware sets up a series of locked IMRs around pieces of
memory that firmware owns such as ACPI runtime data. During boot
a series of unlocked IMRs are placed around items in memory to
guarantee no DMA modification of those items can take place.
Grub also places an unlocked IMR around the kernel boot params
data structure and compressed kernel image. It is necessary for
the kernel to tear down all unlocked IMRs in order to ensure
that the kernel's view of memory passed via the EFI memory map
is consistent with the IMR memory map. Without tearing down all
unlocked IMRs on boot transitory IMRs such as those used to
protect the compressed kernel image will cause IMR violations and system reboots.

The IMR init code tears down all unlocked IMRs and sets a
protective IMR around the kernel .text and .rodata as one
contiguous block. This sanitizes the IMR memory map with respect
to the EFI memory map and protects the read-only portions of the
kernel from unwarranted DMA access.

Tested-by: Ong, Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: Bryan O'Donoghue <pure.logic@nexus-software.ie>
Reviewed-by: Andy Shevchenko <andy.schevchenko@gmail.com>
Reviewed-by: Darren Hart <dvhart@linux.intel.com>
Reviewed-by: Ong, Boon Leong <boon.leong.ong@intel.com>
Cc: andy.shevchenko@gmail.com
Cc: dvhart@infradead.org
Link: http://lkml.kernel.org/r/1422635379-12476-2-git-send-email-pure.logic@nexus-software.ie
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-02-18 23:22:47 +01:00
Darren Hart c57c0fa4bc toshiba_acpi: Cleanup GPL header
Remove the Free Software Foundation street address paragraph and
reference COPYING.

Remove an empty TODO block.

Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-02-11 21:26:18 -08:00
Darren Hart e0769fe6f2 toshiba_acpi: Cleanup comment blocks and capitalization
Ensure multiline comments start with /* and */ each on its own line.
Capitalize the first word of comments.

Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-02-11 21:17:19 -08:00
Azael Avalos 0c3c0f10d4 toshiba_acpi: Make use of DEVICE_ATTR_{RO, RW} macros
This patch makes use of the DEVICE_ATTR_{RO, RW} macros to simplify
sysfs attributes declarations.

Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-02-11 21:17:19 -08:00
Azael Avalos 9d30984819 toshiba_acpi: Drop the toshiba_ prefix from sysfs function names
This patch removes the toshiba_ prefix from all the sysfs function
names and adapted the code according to coding style.

Also a few functions were renamed to match the sysfs entry, as this
patch is a preparation for the next patch to switch to
DEVICE_ATTR_{RO, RW, WO} macros.

Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-02-11 21:17:18 -08:00
Azael Avalos 9bd1213b12 toshiba_acpi: Move sysfs function and struct declarations further down
Commit 93f8c16d63 ("toshiba_acpi: Support new keyboard backlight
type") moved all the sysfs structs and function declarations further
up in order to make use of sysfs_update_group, however,
commit 805469053b ("toshiba_acpi: Add keyboard backlight mode
change event") made use of that function unnecesary.

This patch moves all the sysfs structs and function declarations
further down, making the file shorther in lines and more readable.

Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-02-11 21:16:27 -08:00
Azael Avalos b516399272 toshiba_acpi: Clean file according to coding style
This patch simply cleans the the driver out of 2 errors and 17
warnings according to "checkpatch -f", no functionality was changed,
simply a cleanup.

Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-02-11 21:03:07 -08:00
Azael Avalos 7216d7021d toshiba_acpi: Bump version number to 0.21
Several new features were added on previous patches, so lets bump up
the driver version.

And also, update the copyright year.

Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-02-11 20:40:48 -08:00
Azael Avalos 17fe4b3d31 toshiba_acpi: Add support to enable/disable USB 3
Toshiba laptops that come with USB 3 ports have a feature that lets
them disable USB 3 functionality and act as a regular USB 2 port, and
thus, saving power.

This patch adds support to that feature, by creating a sysfs entry
named "usb_three", acceptig only two parameters, 0 to disable the
USB 3 (acting as a USB 2) and 1 to enable it, however, a reboot is
needed everytime this is toggled.

Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-02-11 20:40:48 -08:00
Azael Avalos 35d53ceaf7 toshiba_acpi: Add support for Panel Power ON
Toshiba laptops come with a feature called "Panel Open - Power ON",
which makes the laptop turn on whenever the LID is opened.

This patch adds support for such feature, by creating a sysfs entry
named "panel_power_on", accepting only two values, 0 to disable and
1 to enable such feature, however, a reboot is needed on every mode
change.

Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-02-11 20:40:48 -08:00
Azael Avalos bae84195b4 toshiba_acpi: Add support for Keyboard functions mode
Recent Toshiba laptops that come with the new keyboard layout have
the Special Functions (hotkeys) enabled by default, which, in order to
access the F{1-12} keys, you need to press the FN-F{1-12} key to
access such key.

This patch adds support to toggle the Keyboard Functions operation
mode by creating the sysfs entry "kbd_functions_keys", accepting only
two parameters, 0 to set the "Normal Operation" mode and 1 to set the
"Special Functions" mode, however, everytime the mode is toggled, a
restart is needed.

In the "Normal Operation" mode, the F{1-12} keys are as usual and
the hotkeys are accessed via FN-F{1-12}.

In the "Special Functions" mode, the F{1-12} keys trigger the hotkey
and the F{1-12} keys are accessed via FN-F{1-12}.

Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-02-11 20:40:48 -08:00
Azael Avalos 94477d4cfe toshiba_acpi: Add fan entry to sysfs
This patch adds a fan entry to sysfs, enabling the user to get and
set the fan status.

Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-02-11 20:40:48 -08:00
Azael Avalos c6c68ff812 toshiba_acpi: Add version entry to sysfs
This patch adds a new entry to the sysfs, showing the version of the
driver.

Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-02-11 20:40:48 -08:00
Adam Lee 1b0eb5bc24 thinkpad_acpi: support new BIOS version string pattern
Latest ThinkPad models use a new string pattern of BIOS version,
thinkpad_acpi won't be loaded automatically without this fix.

Signed-off-by: Adam Lee <adam.lee@canonical.com>

Intentatation cleanup.

Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-02-11 20:34:01 -08:00
Xavier Naveira 67ab62481c thinkpad_acpi: unhandled hkey event
Pressing Fn+Esc in a Lenovo Thinkpad x240 to lock the Fn keys generates
an unhandled hkey event

Signed-off-by: Xavier Naveira <xnaveira@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-02-10 11:18:27 -08:00
Azael Avalos 98fc4ec64a toshiba_acpi: Make toshiba_eco_mode_available more robust
Some Toshiba laptops do not come with the ECO led installed, however,
the driver is registering support for it when it should not.

This patch makes the toshiba_eco_mode_available function more robust
in detecting ECO led capabilities, not registering the led on laptops
that do not support it and registering the led when it really does.

The ECO led function now returns 0x8e00 (Not Installed) by querying
with in[3] = 0, whenever theres no physical LED installed, and
returning 0x8300 (Input Data Error) when it is, however, there are
some BIOSes that have stub function calls not returning anything and
and the LED device was being registered too, hence the change of the
default return value from 1 to 0.

Signed-off-by: Azael Avalos <coproscefalo@gmail.com>

Minor comment update, fixed a whitespace error, s/truly/actual/.

Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-02-09 20:21:02 -08:00
Lad, Prabhakar 2a89d7c2e9 classmate-laptop: Fix sparse warning (0 as NULL)
Fix the following sparse warning:

classmate-laptop.c:523:61: warning: Using plain integer as NULL pointer

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Acked-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-02-07 12:12:00 -08:00
Lad, Prabhakar 76fe63f58b Sony-laptop: Fix sparse warning (make undeclared var static)
Fix the following sparse warning:

sony-laptop.c:1035:29: warning: symbol 'sony_bl_props' was not declared. Should it be static?

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-02-07 12:09:20 -08:00
Lad, Prabhakar b201a47f3c thinkpad_acpi.c: Fix sparse warning (make undeclared var static)
Fix the following sparse warning:

thinkpad_acpi.c:3459:11: warning: symbol 'adaptive_keyboard_modes' was not declared. Should it be static?

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-02-06 18:57:18 -08:00
Darren Hart 802cf2e1e0 samsung-laptop.c: Prefer kstrtoint over single variable sscanf
Replace existing usage of single variable sscanf with kstrtoint for
consistency with checkpatch warnings against such usage.

Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-02-06 18:53:59 -08:00
Lad, Prabhakar 4e7f09ad5e samsung-laptop: Fix sparse integer as NULL warning
Fix the following sparse warning:

samsung-laptop.c:1365:52: warning: Using plain integer as NULL pointer

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-02-06 18:44:28 -08:00
Julijonas Kikutis b0dcaf4fbb samsung-laptop: enable better lid handling
Some Samsung laptops with SABI3 delay the sleep for 10 seconds after
the lid is closed and do not wake up from sleep after the lid is opened.
A SABI command is needed to enable the better behavior.

Command = 0x6e, d0 = 0x81 enables this behavior. Returns d0 = 0x01.
Command = 0x6e, d0 = 0x80 disables this behavior. Returns d0 = 0x00.

Command = 0x6d and any d0 queries the state. This returns:
d0 = 0x00000*01, d1 = 0x00, d2 = 0x00, d3 = 0x0* when it is enabled.
d0 = 0x00000*00, d1 = 0x00, d2 = 0x00, d3 = 0x0* when it is disabled.
Where * is 0 - laptop has never slept or hibernated after switch on,
           1 - laptop has hibernated just before,
           2 - laptop has slept just before.

Patch addresses bug https://bugzilla.kernel.org/show_bug.cgi?id=75901 .
It adds a sysfs attribute lid_handling with a description and also an
addition to the quirks structure to enable the mode by default.

A user with another laptop in the bug report says that "power button has
to be pressed twice to wake the machine" when he or she enabled the mode
manually using the SABI command. Therefore, it is enabled by default
only for the single laptop that I have tested.

Signed-off-by: Julijonas Kikutis <julijonas.kikutis@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-02-06 18:33:55 -08:00
Azael Avalos fa465739d4 toshiba_acpi: Add a check for TOS_NOT_SUPPORTED in the sci_open function
This was "toshiba_acpi: Change sci_open function return value"

Some Toshiba laptops have "poorly implemented" SCI calls on their
BIOSes and are not checking for sci_{open, close} calls, therefore,
the sci_open function is failing and making some of the supported
features unavailable (kbd backlight, touchpad, illumination, etc.).

This patch checks whether we receive TOS_NOT_SUPPORTED and returns
1, making the supported features work on such laptops.

In the case that some laptops really do not support the SCI, all the
SCI dependent functions check for TOS_NOT_SUPPORTED, and thus, not
registering support for the queried feature.

Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-01-28 21:55:01 -08:00
Vivien Didelot ed52ccbce7 asus-laptop: use DEVICE_ATTR_xx macros
Use DEVICE_ATTR_{RO,WO,RW} macros to simplify sysfs attributes
declaration.

To declare a "foo" attribute, DEVICE_ATTR_RW() requires foo_show() and
foo_store(), so rename a few functions to satisfy this requirement.

Also put the macro below each related show/store functions for clarity.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-01-28 21:21:11 -08:00
Andy Shevchenko 32d0e4a337 intel_scu_ipc: Read resources from PCI configuration
Read the resources from PCI BAR0 instead of using hardcoded values.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-01-28 21:21:11 -08:00
Andy Shevchenko f0295a36dc intel_scu_ipc: move error check out of the loop
This is small performance optimization of the busy_loop().

While here, use BIT() macro instead of plain integers when check the status.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-01-28 21:21:10 -08:00
Andy Shevchenko 7c2e3c7476 intel_scu_ipc: fix indentation in few places
While here, do couple of amendments:
 - move platform variable to the function where it's used
 - define intel_scu_ipc_check_status() static

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-01-28 21:21:10 -08:00
Darren Hart b78695a71d Revert "platform: x86: dell-laptop: Add support for keyboard backlight"
This reverts commit 02b2aaaa57.

This interface was determined to be flawed and required too invasive a
fix for the RC cycle. This will be revisited in 3.20.

Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-01-23 11:10:32 -08:00
Vivien Didelot 03070e7c9d asus-laptop: Fix is_visible return value
With a Lucid platform, asus_sysfs_is_visible() returned a boolean for
ls_switch and ls_level attributes.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-01-23 09:10:22 -08:00
Michael Karcher e8549e2cf3 fujitsu-laptop: use FB_BLANK_* constants
Replace the magic numbers in fujitsu-laptop.c by the appropriate FB_BLANK
constants, as indicated by the comment for backlight_properties.power in
include/linux/backlight.h.

Signed-off-by: Michael Karcher <kernel@mkarcher.dialup.fu-berlin.de>
Acked-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-01-23 09:09:25 -08:00
Hans de Goede 4690555e13 samsung-laptop: Add use_native_backlight quirk, and enable it on some models
Since kernel 3.14 the backlight control has been broken on various Samsung
Atom based netbooks. This has been bisected and this problem happens since
commit b35684b8fa ("drm/i915: do full backlight setup at enable time")

This has been reported and discussed in detail here:
http://lists.freedesktop.org/archives/intel-gfx/2014-July/049395.html

Unfortunately no-one has been able to fix this. This only affects Samsung
Atom netbooks, and the Linux kernel and the BIOS of those laptops have never
worked well together. All affected laptops already have a quirk to avoid using
the standard acpi-video interface and instead use the samsung specific SABI
interface which samsung-laptop uses. It seems that recent fixes to the i915
driver have also broken backlight control through the SABI interface.

The intel_backlight driver OTOH works fine, and also allows for finer grained
backlight control. So add a new use_native_backlight quirk, and replace the
broken_acpi_video quirk with this quirk for affected models. This new quirk
disables acpi-video as before and also stops samsung-laptop from registering
the SABI based samsung_laptop backlight interface, leaving only the working
intel_backlight interface.

This commit enables this new quirk for 3 models which are known to be affected,
chances are that it needs to be used on other models too.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1094948 # N145P
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1115713 # N250P
Reported-by: Bertrik Sikken <bertrik@sikken.nl> # N150P
Cc: stable@vger.kernel.org # 3.16
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-01-23 09:09:04 -08:00
Azael Avalos 172ce0a9f6 toshiba_acpi: Add support for USB Sleep and Music
Newer Toshiba laptops now come with a feature called USB Sleep and
Music, where the laptop speakers remain powered and the line-in jack
is used to connect an external device to use the laptop speakers when
the computer is asleep or turned off.

This patchs adds support to such feature, by creating a sysfs entry
named "usb_sleep_music", accepting only two values, 0 to disable and
1 to enable.

Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-01-23 09:08:26 -08:00
Azael Avalos bb3fe01ff6 toshiba_acpi: Add support for USB Rapid Charge
Newer Toshiba laptops equipped with USB 3.0 ports now have the
functionality of rapid charging devices connected to their USB hubs.

This patch adds support to use such feature by creating a sysfs entry
named "usb_rapid_charge", accepting only two values, 0 to disable and
1 to enable, however, the machine needs a restart everytime the
function is toggled.

Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-01-23 09:08:25 -08:00
Azael Avalos 182bcaa5c9 toshiba_acpi: Add support for USB Sleep functions under battery
Toshiba laptops supporting USB Sleep and Charge also come with a
feature called "USB functions under battery", which what it does when
enabled, is allows the USB Sleep functions when the computer is under
battery power.

This patch adds support to that function, creating a sysfs entry
named "sleep_functions_on_battery", accepting values from 0-100,
where zero disables the function and 1-100 sets the battery level at
which point the USB Sleep functions will be disabled, and printing
the current state of the functon and also the battery level currently
set.

Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-01-23 09:08:25 -08:00
Azael Avalos e26ffe5124 toshiba_acpi: Add support for USB Sleep and Charge function
Newer Toshiba models now come with a feature called Sleep and Charge,
where the computer USB ports remain powered when the computer is
asleep or turned off.

This patch adds support to such feature, creating a sysfs entry
called "usb_sleep_charge" to set the desired charging mode or to
disable it.

The sysfs entry accepts three parameters, 0, 1 and 2, beign disabled,
alternate and auto respectively.

The auto mode stands for USB conformant devices (which most are), and
the alternate mode stands for those non USB conformant devices that
require more power.

Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-01-23 09:08:19 -08:00
Linus Torvalds 385336e321 platform-drivers-x86 for 3.19
thinkpad-acpi: Switch to software mute, cleanups
 acerhdf: Bang-bang thermal governor, new models, cleanups
 dell-laptop: New keyboard backlight support and documentation
 toshiba_acpi: Keyboard backlight updates, hotkey handling
 dell-wmi: Keypress filtering, WMI event processing
 eeepc-laptop: Multiple cleanups, improved error handling, documentation
 hp_wireless: Inform the user if hp_wireless_input_setup()/add() fails
 misc: Code cleanups, quirks, various new IDs
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Merge tag 'platform-drivers-x86-v3.19-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86

Pull x86 platform driver update from Darren Hart:
 - thinkpad-acpi: Switch to software mute, cleanups
 - acerhdf: Bang-bang thermal governor, new models, cleanups
 - dell-laptop: New keyboard backlight support and documentation
 - toshiba_acpi: Keyboard backlight updates, hotkey handling
 - dell-wmi: Keypress filtering, WMI event processing
 - eeepc-laptop: Multiple cleanups, improved error handling, documentation
 - hp_wireless: Inform the user if hp_wireless_input_setup()/add() fails
 - misc: Code cleanups, quirks, various new IDs

* tag 'platform-drivers-x86-v3.19-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86: (33 commits)
  platform/x86/acerhdf: Still depends on THERMAL
  Documentation: Add entry for dell-laptop sysfs interface
  acpi: Remove _OSI(Linux) for ThinkPads
  thinkpad-acpi: Try to use full software mute control
  acerhdf: minor clean up
  acerhdf: added critical trip point
  acerhdf: Use bang-bang thermal governor
  acerhdf: Adding support for new models
  acerhdf: Adding support for "manual mode"
  dell-smo8800: Add more ACPI ids and change description of driver
  platform: x86: dell-laptop: Add support for keyboard backlight
  toshiba_acpi: Add keyboard backlight mode change event
  toshiba_acpi: Change notify funtion to handle more events
  toshiba_acpi: Move hotkey enabling code to its own function
  dell-wmi: Don't report keypresses on keybord illumination change
  dell-wmi: Don't report keypresses for radio state changes
  hp_wireless: Inform the user if hp_wireless_input_setup()/add() fails
  toshiba-acpi: Add missing ID (TOS6207)
  Sony-laptop: Deletion of an unnecessary check before the function call "pci_dev_put"
  platform: x86: Deletion of checks before backlight_device_unregister()
  ...
2014-12-18 20:24:55 -08:00
Randy Dunlap 200db64711 platform/x86/acerhdf: Still depends on THERMAL
acerhdf uses thermal interfaces so it should depend on THERMAL.
It also should not select a thermal driver without checking that
THERMAL is enabled.

This fixes the following build errors when THERMAL=m and
ACERHDF=y.

drivers/built-in.o: In function `acerhdf_set_mode':
acerhdf.c:(.text+0x3e02e1): undefined reference to `thermal_zone_device_update'
drivers/built-in.o: In function `acerhdf_unbind':
acerhdf.c:(.text+0x3e052d): undefined reference to `thermal_zone_unbind_cooling_device'
drivers/built-in.o: In function `acerhdf_bind':
acerhdf.c:(.text+0x3e0593): undefined reference to `thermal_zone_bind_cooling_device'
drivers/built-in.o: In function `acerhdf_init':
acerhdf.c:(.init.text+0x1c2f5): undefined reference to `thermal_cooling_device_register'
acerhdf.c:(.init.text+0x1c360): undefined reference to `thermal_zone_device_register'
drivers/built-in.o: In function `acerhdf_unregister_thermal':
acerhdf.c:(.text.unlikely+0x3c67): undefined reference to `thermal_cooling_device_unregister'
acerhdf.c:(.text.unlikely+0x3c91): undefined reference to `thermal_zone_device_unregister'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Peter Feuerer <peter@piie.net>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2014-12-15 09:29:58 -08:00
Linus Torvalds e6b5be2be4 Driver core patches for 3.19-rc1
Here's the set of driver core patches for 3.19-rc1.
 
 They are dominated by the removal of the .owner field in platform
 drivers.  They touch a lot of files, but they are "simple" changes, just
 removing a line in a structure.
 
 Other than that, a few minor driver core and debugfs changes.  There are
 some ath9k patches coming in through this tree that have been acked by
 the wireless maintainers as they relied on the debugfs changes.
 
 Everything has been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core update from Greg KH:
 "Here's the set of driver core patches for 3.19-rc1.

  They are dominated by the removal of the .owner field in platform
  drivers.  They touch a lot of files, but they are "simple" changes,
  just removing a line in a structure.

  Other than that, a few minor driver core and debugfs changes.  There
  are some ath9k patches coming in through this tree that have been
  acked by the wireless maintainers as they relied on the debugfs
  changes.

  Everything has been in linux-next for a while"

* tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits)
  Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries"
  fs: debugfs: add forward declaration for struct device type
  firmware class: Deletion of an unnecessary check before the function call "vunmap"
  firmware loader: fix hung task warning dump
  devcoredump: provide a one-way disable function
  device: Add dev_<level>_once variants
  ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries
  ath: use seq_file api for ath9k debugfs files
  debugfs: add helper function to create device related seq_file
  drivers/base: cacheinfo: remove noisy error boot message
  Revert "core: platform: add warning if driver has no owner"
  drivers: base: support cpu cache information interface to userspace via sysfs
  drivers: base: add cpu_device_create to support per-cpu devices
  topology: replace custom attribute macros with standard DEVICE_ATTR*
  cpumask: factor out show_cpumap into separate helper function
  driver core: Fix unbalanced device reference in drivers_probe
  driver core: fix race with userland in device_add()
  sysfs/kernfs: make read requests on pre-alloc files use the buffer.
  sysfs/kernfs: allow attributes to request write buffer be pre-allocated.
  fs: sysfs: return EGBIG on write if offset is larger than file size
  ...
2014-12-14 16:10:09 -08:00
Darren Hart cc888de2c3 Merge branch 'thinkpad-acpi' into for-next
thinkpad-acpi:
  acpi: Remove _OSI(Linux) for ThinkPads
  thinkpad-acpi: Try to use full software mute control

Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2014-12-10 20:53:08 -08:00
Andy Lutomirski 9a417ec0c9 thinkpad-acpi: Try to use full software mute control
ThinkPads have hardware volume controls and three buttons to control
them.  (These are separate from the standard mixer.)  By default,
the buttons are:

 - Mute: Mutes the hardware volume control and, on some models,
   generates KEY_MUTE.

 - Up: Unmutes, generates KEY_VOLUMEUP, and increases volume if
   applicable.  (Newer thinkpads only have hardware mute/unmute.)

 - Down: Unmutes, generates KEY_VOLUMEDOWN, and decreases volume
   if applicable.

This behavior is unfortunate, since modern userspace will also
handle the hotkeys and change the other mixer.  If the software
mixer is muted and the hardware mixer is unmuted and you push mute,
hilarity ensues as they both switch state.

Rather than adding a lot of complex ALSA integration to fix this,
just disable the special ThinkPad volume controls when possible.
This turns the mute and volume buttons into regular buttons, and
standard software controls will work as expected.

ALSA already knows about the mute light on models with a mute light,
so everything should just work.

This should also allow us to remove _OSI(Linux) for all ThinkPads.

For future reference: It turns out that we can ask ACPI for one of
three behaviors directly on very new models.  They are "latch" (the
default), "none" (no automatic control), and "toggle" (mute unmutes
when muted).  All of the modes besides "none" seem to be a bit
buggy, though, and there doesn't seem to be a consistent way to get
any notification when the HW mute state is changed.

Signed-off-by: Andy Lutomirski <luto@mit.edu>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2014-12-04 04:03:22 -08:00
Peter Feuerer f587f07fef acerhdf: minor clean up
* renamed bios_settings_t to bios_settings, as it is no typedef
  * replaced "unsigned char" by u8 in bios_settings struct for better
    readability.

Cc: platform-driver-x86@vger.kernel.org
Cc: Darren Hart <dvhart@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andreas Mohr <andi@lisas.de>
Acked-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Peter Feuerer <peter@piie.net>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2014-12-04 03:24:56 -08:00
Peter Feuerer 7e8b6d737d acerhdf: added critical trip point
added critical trip point which represents the temperature limit.
Added return -EINVAL in case wrong trip point is provided.

Cc: platform-driver-x86@vger.kernel.org
Cc: Darren Hart <dvhart@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andreas Mohr <andi@lisas.de>
Cc: Borislav Petkov <bp@suse.de>
Cc: Javi Merino <javi.merino@arm.com>
Signed-off-by: Peter Feuerer <peter@piie.net>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2014-12-04 03:24:55 -08:00
Peter Feuerer 48c8dd6434 acerhdf: Use bang-bang thermal governor
acerhdf has been doing an on-off fan control using hysteresis by
post-manipulating the outcome of thermal subsystem trip point handling.
This patch enables acerhdf to use the bang-bang governor, which is
intended for on-off controlled fans.

Cc: platform-driver-x86@vger.kernel.org
Cc: Darren Hart <dvhart@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
CC: Zhang Rui <rui.zhang@intel.com>
Cc: Andreas Mohr <andi@lisas.de>
Cc: Javi Merino <javi.merino@arm.com>
Acked-and-tested-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Peter Feuerer <peter@piie.net>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2014-12-04 03:24:55 -08:00
Peter Feuerer 7438d9905a acerhdf: Adding support for new models
added following new models:
   * Aspire 5755G
   * AO521
   * AO751h
   * Aspire One 753
   * Extensa 5420
   * Aspire 5315
   * Aspire 5739G
   * TravelMate TM8573T

Cc: platform-driver-x86@vger.kernel.org
Cc: Darren Hart <dvhart@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andreas Mohr <andi@lisas.de>
Acked-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Peter Feuerer <peter@piie.net>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2014-12-04 03:24:55 -08:00
Peter Feuerer 5ef6578c02 acerhdf: Adding support for "manual mode"
Some Acer models require an additional command to turn off the fan after
bios mode has been enabled.  Adding new section in bios table to allow
support for those models, by writing an extra "manual mode" register.

Cc: platform-driver-x86@vger.kernel.org
Cc: Darren Hart <dvhart@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andreas Mohr <andi@lisas.de>
Acked-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Peter Feuerer <peter@piie.net>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2014-12-04 03:24:55 -08:00
Pali Rohár e4da91427f dell-smo8800: Add more ACPI ids and change description of driver
This patch adds other ACPI ids from Windows inf driver which should be handled
by dell-smo8800 driver. ACPI devices have same structure -- one IRQ number.

This patch also updates description of module.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2014-12-03 10:10:19 -08:00
Pali Rohár 02b2aaaa57 platform: x86: dell-laptop: Add support for keyboard backlight
This patch adds support for configuring keyboard backlight settings on supported
Dell laptops. It exports kernel leds interface and uses Dell SMBIOS tokens or
keyboard class interface.

With this patch it is possible to set:
* keyboard backlight level
* timeout after which will be backlight automatically turned off
* input activity triggers (keyboard, touchpad, mouse) which enable backlight
* ambient light settings

Settings are exported via sysfs:
/sys/class/leds/dell::kbd_backlight/

Code is based on newly released documentation by Dell in libsmbios project.

Thanks to Dan Carpenter who reported bug about unpredictable results in
quirks->kbd_timeouts for loop. His fix adds needs_kbd_timeouts flag to
quirk structure to indicate if kbd_timeouts array is empty or not.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Gabriele Mazzotta <gabriele.mzt@gmail.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Minor English corrections to comments.
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2014-12-03 10:10:18 -08:00
Azael Avalos 805469053b toshiba_acpi: Add keyboard backlight mode change event
A previous patch added support to handle more events.

This patch adds support to update the sysfs group whenever we receive
a 0x92 event, which indicates a change in the keyboard backlight mode,
removing the update group code from toshiba_kbd_bl_mode_store, as it is
no longer needed there.

Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2014-12-03 10:10:18 -08:00