Commit Graph

1469 Commits

Author SHA1 Message Date
Takashi Iwai
89235e5574 thinkpad_acpi: Convert to snd_card_new() with a device pointer
Also remove superfluous snd_card_set_dev() calls.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-02-14 08:14:10 +01:00
Linus Torvalds
b7a8399edf Merge branch 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86
Pull x86 platform drivers update from Matthew Garrett:
 "Nothing amazingly special here.  Some cleanups, a new driver to
  support a single button on some new HPs, a tiny amount of hardware
  enablement"

* 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86:
  ipc: add intel-mid's pci id macros
  hp-wireless: new driver for hp wireless button for Windows 8
  toshiba_acpi: Support RFKILL hotkey scancode
  hp_accel: Add a new PnP ID HPQ6007 for new HP laptops
  sony-laptop: remove unnecessary assigment of len
  fujitsu-laptop: fix error return code
  dell-laptop: Only install the i8042 filter when rfkill is active
  X86 platform: New BayTrail IOSF-SB MBI driver
  drivers: platform: Include appropriate header file in mxm-wmi.c
  drivers: platform: Mark functions as static in hp_accel.c
  dell-laptop: rkill whitelist Precision models
  ipc: simplify platform data approach
  asus-wmi: Convert to use devm_hwmon_device_register_with_groups
  compal-laptop: Use devm_hwmon_device_register_with_groups
  compal-laptop: Replace SENSOR_DEVICE_ATTR with DEVICE_ATTR
  eeepc-laptop: Convert to use devm_hwmon_device_register_with_groups
  compal-laptop: Use devm_kzalloc to allocate local data structure
  dell-laptop: fix to return error code in dell_send_intensity()
2014-01-29 18:54:05 -08:00
Linus Torvalds
09da8dfa98 ACPI and power management updates for 3.14-rc1
- ACPI core changes to make it create a struct acpi_device object for every
    device represented in the ACPI tables during all namespace scans regardless
    of the current status of that device.  In accordance with this, ACPI hotplug
    operations will not delete those objects, unless the underlying ACPI tables
    go away.
 
  - On top of the above, new sysfs attribute for ACPI device objects allowing
    user space to check device status by triggering the execution of _STA for
    its ACPI object.  From Srinivas Pandruvada.
 
  - ACPI core hotplug changes reducing code duplication, integrating the
    PCI root hotplug with the core and reworking container hotplug.
 
  - ACPI core simplifications making it use ACPI_COMPANION() in the code
    "glueing" ACPI device objects to "physical" devices.
 
  - ACPICA update to upstream version 20131218.  This adds support for the
    DBG2 and PCCT tables to ACPICA, fixes some bugs and improves debug
    facilities.  From Bob Moore, Lv Zheng and Betty Dall.
 
  - Init code change to carry out the early ACPI initialization earlier.
    That should allow us to use ACPI during the timekeeping initialization
    and possibly to simplify the EFI initialization too.  From Chun-Yi Lee.
 
  - Clenups of the inclusions of ACPI headers in many places all over from
    Lv Zheng and Rashika Kheria (work in progress).
 
  - New helper for ACPI _DSM execution and rework of the code in drivers
    that uses _DSM to execute it via the new helper.  From Jiang Liu.
 
  - New Win8 OSI blacklist entries from Takashi Iwai.
 
  - Assorted ACPI fixes and cleanups from Al Stone, Emil Goode, Hanjun Guo,
    Lan Tianyu, Masanari Iida, Oliver Neukum, Prarit Bhargava, Rashika Kheria,
    Tang Chen, Zhang Rui.
 
  - intel_pstate driver updates, including proper Baytrail support, from
    Dirk Brandewie and intel_pstate documentation from Ramkumar Ramachandra.
 
  - Generic CPU boost ("turbo") support for cpufreq from Lukasz Majewski.
 
  - powernow-k6 cpufreq driver fixes from Mikulas Patocka.
 
  - cpufreq core fixes and cleanups from Viresh Kumar, Jane Li, Mark Brown.
 
  - Assorted cpufreq drivers fixes and cleanups from Anson Huang, John Tobias,
    Paul Bolle, Paul Walmsley, Sachin Kamat, Shawn Guo, Viresh Kumar.
 
  - cpuidle cleanups from Bartlomiej Zolnierkiewicz.
 
  - Support for hibernation APM events from Bin Shi.
 
  - Hibernation fix to avoid bringing up nonboot CPUs with ACPI EC disabled
    during thaw transitions from Bjørn Mork.
 
  - PM core fixes and cleanups from Ben Dooks, Leonardo Potenza, Ulf Hansson.
 
  - PNP subsystem fixes and cleanups from Dmitry Torokhov, Levente Kurusa,
    Rashika Kheria.
 
  - New tool for profiling system suspend from Todd E Brandt and a cpupower
    tool cleanup from One Thousand Gnomes.
 
 /
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQIcBAABCAAGBQJS3a1eAAoJEILEb/54YlRxnTgP/iGawvgjKWm6Qqp7WSIvd5gQ
 zZ6q75C6Pc/W2fq1+OzVGnpCF8WYFy+nFDAXOvUHjIXuoxSwFcuW5l4aMckgl/0a
 TXEWe9MJrCHHRfDApfFacCJ44U02bjJAD5vTyL/hKA+IHeinq4WCSojryYC+8jU0
 cBrUIV0aNH8r5JR2WJNAyv/U29rXsDUOu0I4qTqZ4YaZT6AignMjtLXn1e9AH1Pn
 DPZphTIo/HMnb+kgBOjt4snMk+ahVO9eCOxh/hH8ecnWExw9WynXoU5Nsna0tSZs
 ssyHC7BYexD3oYsG8D52cFUpp4FCsJ0nFQNa2kw0LY+0FBNay43LySisKYHZPXEs
 2WpESDv+/t7yhtnrvM+TtA7aBheKm2XMWGFSu/aERLE17jIidOkXKH5Y7ryYLNf/
 uyRKxNS0NcZWZ0G+/wuY02jQYNkfYz3k/nTr8BAUItRBjdporGIRNEnR9gPzgCUC
 uQhjXWMPulqubr8xbyefPWHTEzU2nvbXwTUWGjrBxSy8zkyy5arfqizUj+VG6afT
 NsboANoMHa9b+xdzigSFdA3nbVK6xBjtU6Ywntk9TIpODKF5NgfARx0H+oSH+Zrj
 32bMzgZtHw/lAbYsnQ9OnTY6AEWQYt6NMuVbTiLXrMHhM3nWwfg/XoN4nZqs6jPo
 IYvE6WhQZU6L6fptGHFC
 =dRf6
 -----END PGP SIGNATURE-----

Merge tag 'pm+acpi-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI and power management updates from Rafael Wysocki:
 "As far as the number of commits goes, the top spot belongs to ACPI
  this time with cpufreq in the second position and a handful of PM
  core, PNP and cpuidle updates.  They are fixes and cleanups mostly, as
  usual, with a couple of new features in the mix.

  The most visible change is probably that we will create struct
  acpi_device objects (visible in sysfs) for all devices represented in
  the ACPI tables regardless of their status and there will be a new
  sysfs attribute under those objects allowing user space to check that
  status via _STA.

  Consequently, ACPI device eject or generally hot-removal will not
  delete those objects, unless the table containing the corresponding
  namespace nodes is unloaded, which is extremely rare.  Also ACPI
  container hotplug will be handled quite a bit differently and cpufreq
  will support CPU boost ("turbo") generically and not only in the
  acpi-cpufreq driver.

  Specifics:

   - ACPI core changes to make it create a struct acpi_device object for
     every device represented in the ACPI tables during all namespace
     scans regardless of the current status of that device.  In
     accordance with this, ACPI hotplug operations will not delete those
     objects, unless the underlying ACPI tables go away.

   - On top of the above, new sysfs attribute for ACPI device objects
     allowing user space to check device status by triggering the
     execution of _STA for its ACPI object.  From Srinivas Pandruvada.

   - ACPI core hotplug changes reducing code duplication, integrating
     the PCI root hotplug with the core and reworking container hotplug.

   - ACPI core simplifications making it use ACPI_COMPANION() in the
     code "glueing" ACPI device objects to "physical" devices.

   - ACPICA update to upstream version 20131218.  This adds support for
     the DBG2 and PCCT tables to ACPICA, fixes some bugs and improves
     debug facilities.  From Bob Moore, Lv Zheng and Betty Dall.

   - Init code change to carry out the early ACPI initialization
     earlier.  That should allow us to use ACPI during the timekeeping
     initialization and possibly to simplify the EFI initialization too.
     From Chun-Yi Lee.

   - Clenups of the inclusions of ACPI headers in many places all over
     from Lv Zheng and Rashika Kheria (work in progress).

   - New helper for ACPI _DSM execution and rework of the code in
     drivers that uses _DSM to execute it via the new helper.  From
     Jiang Liu.

   - New Win8 OSI blacklist entries from Takashi Iwai.

   - Assorted ACPI fixes and cleanups from Al Stone, Emil Goode, Hanjun
     Guo, Lan Tianyu, Masanari Iida, Oliver Neukum, Prarit Bhargava,
     Rashika Kheria, Tang Chen, Zhang Rui.

   - intel_pstate driver updates, including proper Baytrail support,
     from Dirk Brandewie and intel_pstate documentation from Ramkumar
     Ramachandra.

   - Generic CPU boost ("turbo") support for cpufreq from Lukasz
     Majewski.

   - powernow-k6 cpufreq driver fixes from Mikulas Patocka.

   - cpufreq core fixes and cleanups from Viresh Kumar, Jane Li, Mark
     Brown.

   - Assorted cpufreq drivers fixes and cleanups from Anson Huang, John
     Tobias, Paul Bolle, Paul Walmsley, Sachin Kamat, Shawn Guo, Viresh
     Kumar.

   - cpuidle cleanups from Bartlomiej Zolnierkiewicz.

   - Support for hibernation APM events from Bin Shi.

   - Hibernation fix to avoid bringing up nonboot CPUs with ACPI EC
     disabled during thaw transitions from Bjørn Mork.

   - PM core fixes and cleanups from Ben Dooks, Leonardo Potenza, Ulf
     Hansson.

   - PNP subsystem fixes and cleanups from Dmitry Torokhov, Levente
     Kurusa, Rashika Kheria.

   - New tool for profiling system suspend from Todd E Brandt and a
     cpupower tool cleanup from One Thousand Gnomes"

* tag 'pm+acpi-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (153 commits)
  thermal: exynos: boost: Automatic enable/disable of BOOST feature (at Exynos4412)
  cpufreq: exynos4x12: Change L0 driver data to CPUFREQ_BOOST_FREQ
  Documentation: cpufreq / boost: Update BOOST documentation
  cpufreq: exynos: Extend Exynos cpufreq driver to support boost
  cpufreq / boost: Kconfig: Support for software-managed BOOST
  acpi-cpufreq: Adjust the code to use the common boost attribute
  cpufreq: Add boost frequency support in core
  intel_pstate: Add trace point to report internal state.
  cpufreq: introduce cpufreq_generic_get() routine
  ARM: SA1100: Create dummy clk_get_rate() to avoid build failures
  cpufreq: stats: create sysfs entries when cpufreq_stats is a module
  cpufreq: stats: free table and remove sysfs entry in a single routine
  cpufreq: stats: remove hotplug notifiers
  cpufreq: stats: handle cpufreq_unregister_driver() and suspend/resume properly
  cpufreq: speedstep: remove unused speedstep_get_state
  platform: introduce OF style 'modalias' support for platform bus
  PM / tools: new tool for suspend/resume performance optimization
  ACPI: fix module autoloading for ACPI enumerated devices
  ACPI: add module autoloading support for ACPI enumerated devices
  ACPI: fix create_modalias() return value handling
  ...
2014-01-24 15:51:02 -08:00
Linus Torvalds
e1ba84597c PCI changes for the v3.14 merge window:
Resource management
     - Change pci_bus_region addresses to dma_addr_t (Bjorn Helgaas)
     - Support 64-bit AGP BARs (Bjorn Helgaas, Yinghai Lu)
     - Add pci_bus_address() to get bus address of a BAR (Bjorn Helgaas)
     - Use pci_resource_start() for CPU address of AGP BARs (Bjorn Helgaas)
     - Enforce bus address limits in resource allocation (Yinghai Lu)
     - Allocate 64-bit BARs above 4G when possible (Yinghai Lu)
     - Convert pcibios_resource_to_bus() to take pci_bus, not pci_dev (Yinghai Lu)
 
   PCI device hotplug
     - Major rescan/remove locking update (Rafael J. Wysocki)
     - Make ioapic builtin only (not modular) (Yinghai Lu)
     - Fix release/free issues (Yinghai Lu)
     - Clean up pciehp (Bjorn Helgaas)
     - Announce pciehp slot info during enumeration (Bjorn Helgaas)
 
   MSI
     - Add pci_msi_vec_count(), pci_msix_vec_count() (Alexander Gordeev)
     - Add pci_enable_msi_range(), pci_enable_msix_range() (Alexander Gordeev)
     - Deprecate "tri-state" interfaces: fail/success/fail+info (Alexander Gordeev)
     - Export MSI mode using attributes, not kobjects (Greg Kroah-Hartman)
     - Drop "irq" param from *_restore_msi_irqs() (DuanZhenzhong)
 
   SR-IOV
     - Clear NumVFs when disabling SR-IOV in sriov_init() (ethan.zhao)
 
   Virtualization
     - Add support for save/restore of extended capabilities (Alex Williamson)
     - Add Virtual Channel to save/restore support (Alex Williamson)
     - Never treat a VF as a multifunction device (Alex Williamson)
     - Add pci_try_reset_function(), et al (Alex Williamson)
 
   AER
     - Ignore non-PCIe error sources (Betty Dall)
     - Support ACPI HEST error sources for domains other than 0 (Betty Dall)
     - Consolidate HEST error source parsers (Bjorn Helgaas)
     - Add a TLP header print helper (Borislav Petkov)
 
   Freescale i.MX6
     - Remove unnecessary code (Fabio Estevam)
     - Make reset-gpio optional (Marek Vasut)
     - Report "link up" only after link training completes (Marek Vasut)
     - Start link in Gen1 before negotiating for Gen2 mode (Marek Vasut)
     - Fix PCIe startup code (Richard Zhu)
 
   Marvell MVEBU
     - Remove duplicate of_clk_get_by_name() call (Andrew Lunn)
     - Drop writes to bridge Secondary Status register (Jason Gunthorpe)
     - Obey bridge PCI_COMMAND_MEM and PCI_COMMAND_IO bits (Jason Gunthorpe)
     - Support a bridge with no IO port window (Jason Gunthorpe)
     - Use max_t() instead of max(resource_size_t,) (Jingoo Han)
     - Remove redundant of_match_ptr (Sachin Kamat)
     - Call pci_ioremap_io() at startup instead of dynamically (Thomas Petazzoni)
 
   NVIDIA Tegra
     - Disable Gen2 for Tegra20 and Tegra30 (Eric Brower)
 
   Renesas R-Car
     - Add runtime PM support (Valentine Barshak)
     - Fix rcar_pci_probe() return value check (Wei Yongjun)
 
   Synopsys DesignWare
     - Fix crash in dw_msi_teardown_irq() (Bjørn Erik Nilsen)
     - Remove redundant call to pci_write_config_word() (Bjørn Erik Nilsen)
     - Fix missing MSI IRQs (Harro Haan)
     - Add dw_pcie prefix before cfg_read/write (Pratyush Anand)
     - Fix I/O transfers by using CPU (not realio) address (Pratyush Anand)
     - Whitespace cleanup (Jingoo Han)
 
   EISA
     - Call put_device() if device_register() fails (Levente Kurusa)
     - Revert EISA initialization breakage ((Bjorn Helgaas)
 
   Miscellaneous
     - Remove unused code, including PCIe 3.0 interfaces (Stephen Hemminger)
     - Prevent bus conflicts while checking for bridge apertures (Bjorn Helgaas)
     - Stop clearing bridge Secondary Status when setting up I/O aperture (Bjorn Helgaas)
     - Use dev_is_pci() to identify PCI devices (Yijing Wang)
     - Deprecate DEFINE_PCI_DEVICE_TABLE (Joe Perches)
     - Update documentation 00-INDEX (Erik Ekman)
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJS3ujEAAoJEFmIoMA60/r8A4EQAK9AZSUSVNWvlKdC1PrBfT3w
 7fVILx5A4KWsOU8eoFwCPQLrgvUtMltg16yN2tbCjqpKEdrVc36biMO9bwhnXSyZ
 KopHKMWnn0sza/z2H8mcGy+0azGdWcIjcErX/a8WeS6zyWBjm+yzckrHNVpPu4Ca
 SpCBhfgBMjKyIZyLtP6juFSH34S2DfQex4oUSyPC+gjqPy5wW/xw/kBxZfOXl+yU
 P9pQT+geMIc31pETMdG9wd/TT+47YAui4ieSggoVxfVrphCXv6S8mOMCMuQc2bAy
 MHy9uFm1jbvKZZIYrzJ+9HFiiU/6MNiOO3Ygua52xuSp1Zrcjwi2CLD9/QBXbDVs
 pTKU5JIO7q43llkQUpIXTwBvEApSZRhuqzXegsMAYIg4AWmbfm/2fXkfWlQThYMp
 J48blAJZ4t0vhMr9usgwbtdBe8F5euExOxpwH0QMCMABbuu8/B3TLm39+LTcIbsw
 Efgm3N9iUTyiV5fe9Rr62nflhyqXjTevPl4wbZZe4OOdm0MXZY+/BzuNJhg3wyY8
 QKz2J3FB6OR7BCLHCp80l50s5+Ih4F5kmOXwFKjT1D1MFRaNaPDmp9BY6TitU6hg
 zj55gP4c8x6n3alakbf972Yhgs/4oi1va8cZL+pCYWb8nPO5ldaMiT7QBBLUreQV
 BtDtC7u/AFWJ5e73+jVO
 =La1R
 -----END PGP SIGNATURE-----

Merge tag 'pci-v3.14-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:
 "PCI changes for the v3.14 merge window:

  Resource management
    - Change pci_bus_region addresses to dma_addr_t (Bjorn Helgaas)
    - Support 64-bit AGP BARs (Bjorn Helgaas, Yinghai Lu)
    - Add pci_bus_address() to get bus address of a BAR (Bjorn Helgaas)
    - Use pci_resource_start() for CPU address of AGP BARs (Bjorn Helgaas)
    - Enforce bus address limits in resource allocation (Yinghai Lu)
    - Allocate 64-bit BARs above 4G when possible (Yinghai Lu)
    - Convert pcibios_resource_to_bus() to take pci_bus, not pci_dev (Yinghai Lu)

  PCI device hotplug
    - Major rescan/remove locking update (Rafael J. Wysocki)
    - Make ioapic builtin only (not modular) (Yinghai Lu)
    - Fix release/free issues (Yinghai Lu)
    - Clean up pciehp (Bjorn Helgaas)
    - Announce pciehp slot info during enumeration (Bjorn Helgaas)

  MSI
    - Add pci_msi_vec_count(), pci_msix_vec_count() (Alexander Gordeev)
    - Add pci_enable_msi_range(), pci_enable_msix_range() (Alexander Gordeev)
    - Deprecate "tri-state" interfaces: fail/success/fail+info (Alexander Gordeev)
    - Export MSI mode using attributes, not kobjects (Greg Kroah-Hartman)
    - Drop "irq" param from *_restore_msi_irqs() (DuanZhenzhong)

  SR-IOV
    - Clear NumVFs when disabling SR-IOV in sriov_init() (ethan.zhao)

  Virtualization
    - Add support for save/restore of extended capabilities (Alex Williamson)
    - Add Virtual Channel to save/restore support (Alex Williamson)
    - Never treat a VF as a multifunction device (Alex Williamson)
    - Add pci_try_reset_function(), et al (Alex Williamson)

  AER
    - Ignore non-PCIe error sources (Betty Dall)
    - Support ACPI HEST error sources for domains other than 0 (Betty Dall)
    - Consolidate HEST error source parsers (Bjorn Helgaas)
    - Add a TLP header print helper (Borislav Petkov)

  Freescale i.MX6
    - Remove unnecessary code (Fabio Estevam)
    - Make reset-gpio optional (Marek Vasut)
    - Report "link up" only after link training completes (Marek Vasut)
    - Start link in Gen1 before negotiating for Gen2 mode (Marek Vasut)
    - Fix PCIe startup code (Richard Zhu)

  Marvell MVEBU
    - Remove duplicate of_clk_get_by_name() call (Andrew Lunn)
    - Drop writes to bridge Secondary Status register (Jason Gunthorpe)
    - Obey bridge PCI_COMMAND_MEM and PCI_COMMAND_IO bits (Jason Gunthorpe)
    - Support a bridge with no IO port window (Jason Gunthorpe)
    - Use max_t() instead of max(resource_size_t,) (Jingoo Han)
    - Remove redundant of_match_ptr (Sachin Kamat)
    - Call pci_ioremap_io() at startup instead of dynamically (Thomas Petazzoni)

  NVIDIA Tegra
    - Disable Gen2 for Tegra20 and Tegra30 (Eric Brower)

  Renesas R-Car
    - Add runtime PM support (Valentine Barshak)
    - Fix rcar_pci_probe() return value check (Wei Yongjun)

  Synopsys DesignWare
    - Fix crash in dw_msi_teardown_irq() (Bjørn Erik Nilsen)
    - Remove redundant call to pci_write_config_word() (Bjørn Erik Nilsen)
    - Fix missing MSI IRQs (Harro Haan)
    - Add dw_pcie prefix before cfg_read/write (Pratyush Anand)
    - Fix I/O transfers by using CPU (not realio) address (Pratyush Anand)
    - Whitespace cleanup (Jingoo Han)

  EISA
    - Call put_device() if device_register() fails (Levente Kurusa)
    - Revert EISA initialization breakage ((Bjorn Helgaas)

  Miscellaneous
    - Remove unused code, including PCIe 3.0 interfaces (Stephen Hemminger)
    - Prevent bus conflicts while checking for bridge apertures (Bjorn Helgaas)
    - Stop clearing bridge Secondary Status when setting up I/O aperture (Bjorn Helgaas)
    - Use dev_is_pci() to identify PCI devices (Yijing Wang)
    - Deprecate DEFINE_PCI_DEVICE_TABLE (Joe Perches)
    - Update documentation 00-INDEX (Erik Ekman)"

* tag 'pci-v3.14-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (119 commits)
  Revert "EISA: Initialize device before its resources"
  Revert "EISA: Log device resources in dmesg"
  vfio-pci: Use pci "try" reset interface
  PCI: Check parent kobject in pci_destroy_dev()
  xen/pcifront: Use global PCI rescan-remove locking
  powerpc/eeh: Use global PCI rescan-remove locking
  PCI: Fix pci_check_and_unmask_intx() comment typos
  PCI: Add pci_try_reset_function(), pci_try_reset_slot(), pci_try_reset_bus()
  MPT / PCI: Use pci_stop_and_remove_bus_device_locked()
  platform / x86: Use global PCI rescan-remove locking
  PCI: hotplug: Use global PCI rescan-remove locking
  pcmcia: Use global PCI rescan-remove locking
  ACPI / hotplug / PCI: Use global PCI rescan-remove locking
  ACPI / PCI: Use global PCI rescan-remove locking in PCI root hotplug
  PCI: Add global pci_lock_rescan_remove()
  PCI: Cleanup pci.h whitespace
  PCI: Reorder so actual code comes before stubs
  PCI/AER: Support ACPI HEST AER error sources for PCI domains other than 0
  ACPICA: Add helper macros to extract bus/segment numbers from HEST table.
  PCI: Make local functions static
  ...
2014-01-22 16:39:28 -08:00
David Cohen
b4b0b4a9e0 ipc: add intel-mid's pci id macros
For readability matters, this patch replaces the hardcoded pci ids by
human readable macros.

Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-01-21 08:47:15 -05:00
Alex Hung
54290fa698 hp-wireless: new driver for hp wireless button for Windows 8
Signed-off-by: Alex Hung <alex.hung@canonical.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-01-21 08:44:18 -05:00
Unai Uribarri
fec278a1dd toshiba_acpi: Support RFKILL hotkey scancode
This scancode is used in new 2013 models like Satellite P75-A7200.

Signed-off-by: Unai Uribarri <unaiur@gmail.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-01-21 08:44:18 -05:00
Takashi Iwai
b0ad4ff35d hp_accel: Add a new PnP ID HPQ6007 for new HP laptops
The DriveGuard chips on the new HP laptops are with a new PnP ID
"HPQ6007".  It should be compatible with older chips.

Acked-by: Éric Piel <eric.piel@tremplin-utc.net>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-01-21 08:44:18 -05:00
Colin Ian King
2845f47723 sony-laptop: remove unnecessary assigment of len
The assignment of len = len is unnecessary, so remove it.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-01-21 08:44:17 -05:00
Julia Lawall
b30bb89f0f fujitsu-laptop: fix error return code
These functions mix the use of result and error.  In acpi_fujitsu_add,
result does not seem useful; it would seem reasonable to propagate the
return value of acpi_bus_update_power in an error case.  On the other hand,
in the case of acpi_fujitsu_hotkey_add, there is an initialization of
result that can lead to what looks like a failure case, but that does not
abort the function.  The variable result is kept for this case.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
(
if@p1 (\(ret < 0\|ret != 0\))
 { ... return ret; }
|
ret@p1 = 0
)
... when != ret = e1
    when != &ret
*if(...)
{
  ... when != ret = e2
      when forall
 return ret;
}

// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-01-21 08:44:17 -05:00
Hans de Goede
97f440c23f dell-laptop: Only install the i8042 filter when rfkill is active
Installing the i8042 filter is not useful on machines where rfkill is not
whitelisted, so move the filter installation into dell_setup_rfkill,
after the whitelist check.

This avoids doing a needless and potentially troublesome rfkill query
(dell_send_request(buf, 17, 11)) when the wireless Fn key gets pressed on
non whitelisted laptops.

This patch was written as a result of:
https://bugzilla.redhat.com/show_bug.cgi?id=1045807
It is not yet clear if this is related, but it is a good idea to not register
the i8042 filter in general.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-01-21 08:44:17 -05:00
David E. Box
997ab407d2 X86 platform: New BayTrail IOSF-SB MBI driver
Current Intel SOC cores use a MailBox Interface (MBI) to provide access to unit
devices connected to the system fabric. This driver implements access to this
interface on BayTrail platforms. This is a requirement for drivers that need
access to unit registers on the platform (e.g. accessing the PUNIT for power
management features such as RAPL). Serialized access is handled by all exported
routines with spinlocks.

The API includes 3 functions for access to unit registers:

int bt_mbi_read(u8 port, u8 opcode, u32 offset, u32 *mdr)
int bt_mbi_write(u8 port, u8 opcode, u32 offset, u32 mdr)
int bt_mbi_modify(u8 port, u8 opcode, u32 offset, u32 mdr, u32 mask)

port:	indicating the unit being accessed
opcode:	the read or write port specific opcode
offset:	the register offset within the port
mdr:	the register data to be read, written, or modified
mask:	bit locations in mdr to change

Returns nonzero on error

Note: GPU code handles access to the GFX unit. Therefore access to that unit
with this driver is disallowed to avoid conflicts.

Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-01-21 08:44:17 -05:00
Rashika Kheria
475879d651 drivers: platform: Include appropriate header file in mxm-wmi.c
This patch includes appropriate header file linux/mxm-wmi.h in
x86/mxm-wmi.c because functions mxm_wmi_call_mxds(), mxm_wmi_call_mxmx()
and mxm_wmi_supported() have their prototype declaration in
linux/mxm-wmi.h.

Thus, it also eliminates the following warnings in x86/mxm-wmi.c:
drivers/platform/x86/mxm-wmi.c:43:5: warning: no previous prototype for ‘mxm_wmi_call_mxds’ [-Wmissing-prototypes]
drivers/platform/x86/mxm-wmi.c:68:5: warning: no previous prototype for ‘mxm_wmi_call_mxmx’ [-Wmissing-prototypes]
drivers/platform/x86/mxm-wmi.c:93:6: warning: no previous prototype for ‘mxm_wmi_supported’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-01-21 08:44:17 -05:00
Rashika Kheria
04b7338741 drivers: platform: Mark functions as static in hp_accel.c
This patch marks the functions lis3lv02d_acpi_init(),
lis3lv02d_acpi_read() and lis3lv02d_acpi_write() as static in
x86/hp_accel.c because they are not used outside this file.

Thus, it also eliminates the following warnings in x86/hp_accel.c:
drivers/platform/x86/hp_accel.c:91:5: warning: no previous prototype for ‘lis3lv02d_acpi_init’ [-Wmissing-prototypes]
drivers/platform/x86/hp_accel.c:109:5: warning: no previous prototype for ‘lis3lv02d_acpi_read’ [-Wmissing-prototypes]
drivers/platform/x86/hp_accel.c:132:5: warning: no previous prototype for ‘lis3lv02d_acpi_write’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-01-21 08:44:17 -05:00
Hans de Goede
ba5194f186 dell-laptop: rkill whitelist Precision models
Given that Precision mobile workstations are top of the line Dell products,
I expect the functionality of rfkill there to be as reliable as on Latitudes
so whitelist Precisions.

https://bugzilla.kernel.org/show_bug.cgi?id=65731

Reported-by: Calum Lind <calumlind@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-01-21 08:44:17 -05:00
David Cohen
694e523cfe ipc: simplify platform data approach
This patch removes the unnecessary enum for platform type to handle the
array of pdatas. We can set pdata directly to pci_device_id struct
instead.

Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-01-21 08:44:17 -05:00
Guenter Roeck
50a639fb15 asus-wmi: Convert to use devm_hwmon_device_register_with_groups
Simplify the code and avoid race conditions due to late sysfs attribute
registration. Also replace SENSOR_DEVICE_ATTR with DEVICE_ATTR;
the additional parameter is not used and thus unnecessary.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-01-21 08:44:03 -05:00
Guenter Roeck
c2be45f09b compal-laptop: Use devm_hwmon_device_register_with_groups
Simplify the code and create hwmon attributes as well as hwmon device in one go.

With the new hwmon API, hwmon attributes are now attached to the hwmon device.
Therefore, split hwmon and device attributes into two separate groups.
Platform attributes are still attached to the platform device.

Also use devm_kzalloc to allocate local data structures for further
simplification.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-01-21 08:44:03 -05:00
Guenter Roeck
4e062581cc compal-laptop: Replace SENSOR_DEVICE_ATTR with DEVICE_ATTR
The extra argument to SENSOR_DEVICE_ATTR is not used. It is therefore not
necessary to use SENSOR_DEVICE_ATTR in the first place. Replace it with
DEVICE_ATTR.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-01-21 08:44:03 -05:00
Guenter Roeck
f0c34c97b3 eeepc-laptop: Convert to use devm_hwmon_device_register_with_groups
Simplify the code and avoid race condition caused by creating sysfs attributes
after creating the hwmon device.

Also replace SENSOR_DEVICE_ATTR with DEVICE_ATTR since the extra argument
is not used and SENSOR_DEVICE_ATTR is not needed.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-01-21 08:44:03 -05:00
Guenter Roeck
cf508f4496 compal-laptop: Use devm_kzalloc to allocate local data structure
Reduce code size and simplify error path.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-01-21 08:44:03 -05:00
Wei Yongjun
7da8fb27ef dell-laptop: fix to return error code in dell_send_intensity()
Fix to return error code instead always return 0 from function
dell_send_intensity().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-01-21 08:43:54 -05:00
Rafael J. Wysocki
8b9ec1da6a platform / x86: Use global PCI rescan-remove locking
Multiple race conditions are possible between the rfkill hotplug in the
asus-wmi and eeepc-laptop drivers and the generic PCI bus rescan and device
removal that can be triggered via sysfs.

To avoid those race conditions make asus-wmi and eeepc-laptop use global
PCI rescan-remove locking around the rfkill hotplug.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-01-14 12:14:25 -07:00
Rafael J. Wysocki
98feb7cc61 Merge branch 'acpi-cleanup'
* acpi-cleanup: (22 commits)
  ACPI / tables: Return proper error codes from acpi_table_parse() and fix comment.
  ACPI / tables: Check if id is NULL in acpi_table_parse()
  ACPI / proc: Include appropriate header file in proc.c
  ACPI / EC: Remove unused functions and add prototype declaration in internal.h
  ACPI / dock: Include appropriate header file in dock.c
  ACPI / PCI: Include appropriate header file in pci_link.c
  ACPI / PCI: Include appropriate header file in pci_slot.c
  ACPI / EC: Mark the function acpi_ec_add_debugfs() as static in ec_sys.c
  ACPI / NVS: Include appropriate header file in nvs.c
  ACPI / OSL: Mark the function acpi_table_checksum() as static
  ACPI / processor: initialize a variable to silence compiler warning
  ACPI / processor: use ACPI_COMPANION() to get ACPI device
  ACPI: correct minor typos
  ACPI / sleep: Drop redundant acpi_disabled check
  ACPI / dock: Drop redundant acpi_disabled check
  ACPI / table: Replace '1' with specific error return values
  ACPI: remove trailing whitespace
  ACPI / IBFT: Fix incorrect <acpi/acpi.h> inclusion in iSCSI boot firmware module
  ACPI / i915: Fix incorrect <acpi/acpi.h> inclusions via <linux/acpi_io.h>
  SFI / ACPI: Fix warnings reported during builds with W=1
  ...

Conflicts:
	drivers/acpi/nvs.c
	drivers/hwmon/asus_atk0110.c
2014-01-12 23:44:09 +01:00
Lv Zheng
8b48463f89 ACPI: Clean up inclusions of ACPI header files
Replace direct inclusions of <acpi/acpi.h>, <acpi/acpi_bus.h> and
<acpi/acpi_drivers.h>, which are incorrect, with <linux/acpi.h>
inclusions and remove some inclusions of those files that aren't
necessary.

First of all, <acpi/acpi.h>, <acpi/acpi_bus.h> and <acpi/acpi_drivers.h>
should not be included directly from any files that are built for
CONFIG_ACPI unset, because that generally leads to build warnings about
undefined symbols in !CONFIG_ACPI builds.  For CONFIG_ACPI set,
<linux/acpi.h> includes those files and for CONFIG_ACPI unset it
provides stub ACPI symbols to be used in that case.

Second, there are ordering dependencies between those files that always
have to be met.  Namely, it is required that <acpi/acpi_bus.h> be included
prior to <acpi/acpi_drivers.h> so that the acpi_pci_root declarations the
latter depends on are always there.  And <acpi/acpi.h> which provides
basic ACPICA type declarations should always be included prior to any other
ACPI headers in CONFIG_ACPI builds.  That also is taken care of including
<linux/acpi.h> as appropriate.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com> (drivers/pci stuff)
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> (Xen stuff)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-12-07 01:03:14 +01:00
Mattia Dongili
b975dc3689 sony-laptop: do not scribble keyboard backlight registers on resume
Follow-up to commit 294d31e822 ("sony-laptop: don't change keyboard
backlight settings"): avoid messing up the state on resume.  Leave it to
what was before suspending as it's anyway likely that we still don't
know what value we should write to the EC registers.  This fix is also
required in 3.12

Cc: stable@vger.kernel.org
Tested-by: Karol Babioch <karol@babioch.de>
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-11-26 13:03:36 +09:00
Prarit Bhargava
a80e1053aa x86, wmi fix modalias_show return values
I just fixed this same bug in arch/powerpc/kernel/vio.c and took a quick
look for other similar errors in the kernel.

modalias_show() should return an empty string on error, not errno.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Cc: Matthew Garrett <matthew.garrett@nebula.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2013-11-20 20:16:22 -05:00
Kuppuswamy Sathyanarayanan
ed12f295bf ipc: Added support for IPC interrupt mode
This patch adds support for ipc command interrupt mode.
Also added platform data option to select 'irq_mode'

irq_mode = 1: configure the driver to receive IOC interrupt
for each successful ipc_command.

irq_mode = 0: makes driver use polling method to
track the command completion status.

Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2013-11-20 20:16:21 -05:00
Kuppuswamy Sathyanarayanan
c7094d1d99 ipc: Handle error conditions in ipc command
Handle error conditions in intel_scu_ipc_command() and
pwr_reg_rdwr().

Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2013-11-20 18:51:28 -05:00
Kuppuswamy Sathyanarayanan
7f95afb317 ipc: Enabled ipc support for additional intel platforms
Enabled ipc support for penwell, clovertrail & tangier platforms.

Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Cc: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2013-11-20 18:51:28 -05:00
Kuppuswamy Sathyanarayanan
e97a1c9817 ipc: Added platform data structure
Since the same ipc driver can be used by many platforms, using
macros for defining ipc_base and i2c_base addresses is not
a scalable approach. So added a platform data structure to pass
this information.

Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Acked-by: Alan Cox <gnomes@lxorguk.ukuu.org.uk>
Cc: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2013-11-20 18:51:28 -05:00
Takashi Iwai
cab6661344 thinkpad_acpi: Fix build error when CONFIG_SND_MAX_CARDS > 32
SNDRV_CARDS can be specified via Kconfig since 3.11 kernel, so this
can be over 32bit integer range, which leads to a build error.

Cc: <stable@vger.kernel.org> [v3.11+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2013-11-20 18:51:15 -05:00
Olof Johansson
ab0431059e platform: add chrome platform directory
It makes sense to split out the Chromebook/Chromebox hardware platform
drivers to a separate subdirectory, since some of it will be shared
between ARM and x86.

This moves over the existing chromeos_laptop driver without making
any other changes, and adds appropriate Kconfig entries for the new
directory. It also adds a MAINTAINERS entry for the new subdir.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2013-11-20 18:51:03 -05:00
Alex Hung
997daa1bd9 hp-wmi: detect "2009 BIOS or later" flag by WMI 0x0d for wireless cmd
Some HP BIOS has dummy WMI 0x05 cmd and it causes wireless set cmd to fail.
This patch fixes the problem by detecting "2009 BIOS or later" flag which
determines whether WMI 0x1b is supported and is used to replace WMI 0x05.

Signed-off-by: Alex Hung <alex.hung@canonical.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2013-11-20 18:51:03 -05:00
Alex Hung
cfb743bf61 dell-wmi: Add KEY_MICMUTE to bios_to_linux_keycode
Signed-off-by: Alex Hung <alex.hung@canonical.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2013-11-20 18:51:03 -05:00
Joe Perches
b222cca600 platform:x86: Remove OOM message after input_allocate_device
Emitting an OOM message isn't necessary after input_allocate_device
as there's a generic OOM and a dump_stack already done.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2013-11-20 18:51:03 -05:00
Stephen Gildea
a825bc87b2 sony-laptop: fixe typos in sony_laptop_input_keycode_map
Signed-off-by: Stephen Gildea <stepheng+linux@gildea.com>
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2013-11-20 18:51:03 -05:00
Mattia Dongili
1d885f4257 sony-laptop: warn on multiple KBD backlight handles
Some BIOS versions/Vaio models apparently ship with two nearly identical
functions to handle backlight related controls.
The only difference seems to be:
        If (LEqual (BUF1, 0x40))
        {
            Store (0x40, P80H)
            Store (BUF2, Local0)
-           And (Local0, One, Local0)
+           And (Local0, 0x03, Local0)
            Store (Local0, ^^H_EC.KLPC)
        }

Avoid erroring out on initialization and messing things up on cleanup
for now since we never call into these methods with anything different
than 1 or 0.
This issue was found on a Sony VPCSE1V9E/BIOS R2087H4.

Cc: Marco Krüger <krgsch@gmail.com>
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2013-11-20 18:50:49 -05:00
Hans de Goede
2bd4ac1392 dell-laptop: Only enable rfkill functionality on laptops with a hw killswitch
All my testing has been on laptops with a hw killswitch, so to be on the
safe side disable rfkill functionality on models without a hw killswitch for
now. Once we gather some feedback on laptops without a hw killswitch this
decision maybe reconsidered.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2013-11-20 18:50:49 -05:00
Hans de Goede
8e0e668d0a dell-laptop: Add a force_rfkill module parameter
Setting force_rfkill will cause the dell-laptop rfkill code to skip its
whitelist checks, this will allow individual users to override the whitelist,
as well as to gather info from users to improve the checks.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2013-11-20 18:50:49 -05:00
Hans de Goede
26c22d63a7 dell-laptop: Wait less long before updating rfkill after an rfkill keypress
Some time is needed for the BIOS to do its work, but 250ms should be plenty.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2013-11-20 18:50:49 -05:00
Hans de Goede
ed1128989a dell-laptop: Do not skip setting blocked bit rfkill_set while hw-blocked
Instead when hw-blocked always write 1 to the blocked bit for the radio in
question. This is necessary to properly set all the blocked bits for hw-switch
controlled radios to 1 after power-on and resume.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2013-11-20 18:50:49 -05:00
Hans de Goede
04c9a3a06c dell-laptop: Sync current block state to BIOS on hw switch change
This is necessary for 3 reasons:
1) To apply sw_state changes made while hw-blocked
2) To set all the blocked bits for hw-switch controlled radios to 1 when the
   switch gets changed to off, this is necessary on some models to actually
   turn the radio status LEDs off.
3) On some models non hw-switch controlled radios will have their block bit
   cleared (potentially undoing a soft-block) on hw-switch toggle, this
   restores the sw-block in this case.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2013-11-20 18:50:48 -05:00
Hans de Goede
4d39d88ceb dell-laptop: Allow changing the sw_state while the radio is blocked by hw
This makes dell-laptop's rfkill code consistent with other drivers which
allow sw_state changes while hw blocked.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2013-11-20 18:50:48 -05:00
Hans de Goede
3f56588a79 dell-laptop: Don't read-back sw_state on machines with a hardware switch
On machines with a hardware switch, the blocking settings can not be changed
through a Fn + wireless-key combo, so there is no reason to read back the
blocking state from the BIOS.

Reading back is not only not necessary it is actually harmful, since on some
machines the blocking state will be cleared to all 0 after a wireless switch
toggle, even for radios not controlled by the hw-switch (yeah firmware bugs).

This causes "magic" changes to the sw_state. This is inconsistent with other
rfkill drivers which preserve the sw_state over a hw kill on / off.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2013-11-20 18:50:48 -05:00
Hans de Goede
33f9359abb dell-laptop: Don't set sw_state from the query callback
The query callback should only update the hw_state, see the comment in
net/rfkill/core.c in rfkill_set_block, which is its only caller.

rfkill_set_block will modify the sw_state directly after calling query so
calling set_sw_state is an expensive NOP.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2013-11-20 18:50:48 -05:00
Hans de Goede
d038880efd dell-laptop: Only get status from BIOS once when updating
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2013-11-20 18:50:48 -05:00
Hans de Goede
ddde708217 dell-laptop: If there is no hwswitch, then clear all hw-controlled bits
To ensure we don't enter any hw-switch related code paths on machines without
a hw-switch.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2013-11-20 18:50:48 -05:00
Hans de Goede
2a92551845 dell-laptop: Only enable rfkill on Latitudes
The rfkill functionality was removed from the dell-laptop driver because it
was causing problems on various non Latitude models, and the blacklist kept
growing and growing. In the thread discussing this Dell mentioned that they
only QA the rfkill acpi interface on Latitudes and indeed there have been
no blacklist entries for Latitudes.

Note that the blacklist contained no Vostros either, and most Vostros have
a hardware switch too, so we could consider supporting Vostros with a
hardware switch too.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2013-11-20 18:50:48 -05:00
Hans de Goede
4cc8a57425 Revert "dell-laptop: Remove rfkill code"
Without rfkill functionality in dell-laptop I have the following problems:
-If the hardware radio switch is set to disable the radio, then userspace
 will still think it can use wireless and bluetooth.
-The wwan / 3g modem cannot be soft blocked without the dell-laptop rfkill
 functionality

I know the rfkill functionality was removed from the dell-laptop driver because
it caused more problems then it fixed, and the blacklist for it was growing out
of control.

But in the thread discussing this Dell mentioned that they only QA the rfkill
acpi interface on Latitudes and indeed there have been no blacklist entries
for Latitudes. Therefor I would like to bring the rfkill functionality back
only for Latitudes. This patch is a straight-forward revert. The next patch
in this set will drop the blacklist and replace it with a Latitude check.

This reverts commit a6c2390cd6.

Conflicts:
	drivers/platform/x86/dell-laptop.c

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2013-11-20 18:50:48 -05:00