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2016-08-06Merge tag 'pwm/for-4.8-rc1' of ↵Linus Torvalds1-0/+17
git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm Pull pwm updates from Thierry Reding: "This set of changes improve some aspects of the atomic API as well as make use of this new API in the regulator framework to allow properly dealing with critical regulators controlled by a PWM. Aside from that there's a bunch of updates and cleanups for existing drivers, as well as the addition of new drivers for the Broadcom iProc, STMPE and ChromeOS EC controllers" * tag 'pwm/for-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (44 commits) regulator: pwm: Document pwm-dutycycle-unit and pwm-dutycycle-range regulator: pwm: Support extra continuous mode cases pwm: Add ChromeOS EC PWM driver dt-bindings: pwm: Add binding for ChromeOS EC PWM mfd: cros_ec: Add EC_PWM function definitions mfd: cros_ec: Add cros_ec_cmd_xfer_status() helper pwm: atmel: Use of_device_get_match_data() pwm: atmel: Fix checkpatch warnings pwm: atmel: Fix disabling of PWM channels dt-bindings: pwm: Add R-Car H3 device tree bindings pwm: rcar: Use ARCH_RENESAS pwm: tegra: Add support for Tegra186 dt-bindings: pwm: tegra: Add compatible string for Tegra186 pwm: tegra: Avoid overflow when calculating duty cycle pwm: tegra: Allow 100 % duty cycle pwm: tegra: Add support for reset control pwm: tegra: Rename mmio_base to regs pwm: tegra: Remove useless padding pwm: tegra: Drop NUM_PWM macro pwm: lpc32xx: Set PWM_PIN_LEVEL bit to default value ...
2016-08-02Merge tag 'drm-for-v4.8' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds1-26/+29
Merge drm updates from Dave Airlie: "This is the main drm pull request for 4.8. I'm down with a cold at the moment so hopefully this isn't in too bad a state, I finished pulling stuff last week mostly (nouveau fixes just went in today), so only this message should be influenced by illness. Apologies to anyone who's major feature I missed :-) Core: Lockless GEM BO freeing Non-blocking atomic work Documentation changes (rst/sphinx) Prep for new fencing changes Simple display helpers Master/auth changes Register/unregister rework Loads of trivial patches/fixes. New stuff: ARM Mali display driver (not the 3D chip) sii902x RGB->HDMI bridge Panel: Support for new panels Improved backlight support Bridge: Convert ADV7511 to bridge driver ADV7533 support TC358767 (DSI/DPI to eDP) encoder chip support i915: BXT support enabled by default GVT-g infrastructure GuC command submission and fixes BXT workarounds SKL/BKL workarounds Demidlayering device registration Thundering herd fixes Missing pci ids Atomic updates amdgpu/radeon: ATPX improvements for better dGPU power control on PX systems New power features for CZ/BR/ST Pipelined BO moves and evictions in TTM GPU scheduler improvements GPU reset improvements Overclocking on dGPUs with amdgpu Polaris powermanagement enabled nouveau: GK20A/GM20B volt and clock improvements. Initial support for GP100/GP104 GPUs, GP104 will not yet support acceleration due to NVIDIA having not released firmware for them as of yet. exynos: Exynos5433 SoC with IOMMU support. vc4: Shader validation for branching imx-drm: Atomic mode setting conversion Reworked DMFC FIFO allocation External bridge support analogix-dp: RK3399 eDP support Lots of fixes. rockchip: Lots of small fixes. msm: DT bindings cleanups Shrinker and madvise support ASoC HDMI codec support tegra: Host1x driver cleanups SOR reworking for DP support Runtime PM support omapdrm: PLL enhancements Header refactoring Gamma table support arcgpu: Simulator support virtio-gpu: Atomic modesetting fixes. rcar-du: Misc fixes. mediatek: MT8173 HDMI support sti: ASOC HDMI codec support Minor fixes fsl-dcu: Suspend/resume support Bridge support amdkfd: Minor fixes. etnaviv: Enable GPU clock gating hisilicon: Vblank and other fixes" * tag 'drm-for-v4.8' of git://people.freedesktop.org/~airlied/linux: (1575 commits) drm/nouveau/gr/nv3x: fix instobj write offsets in gr setup drm/nouveau/acpi: fix lockup with PCIe runtime PM drm/nouveau/acpi: check for function 0x1B before using it drm/nouveau/acpi: return supported DSM functions drm/nouveau/acpi: ensure matching ACPI handle and supported functions drm/nouveau/fbcon: fix font width not divisible by 8 drm/amd/powerplay: remove enable_clock_power_gatings_tasks from initialize and resume events drm/amd/powerplay: move clockgating to after ungating power in pp for uvd/vce drm/amdgpu: add query device id and revision id into system info entry at CGS drm/amdgpu: add new definition in bif header drm/amd/powerplay: rename smum header guards drm/amdgpu: enable UVD context buffer for older HW drm/amdgpu: fix default UVD context size drm/amdgpu: fix incorrect type of info_id drm/amdgpu: make amdgpu_cgs_call_acpi_method as static drm/amdgpu: comment out unused defaults_staturn_pro static const structure to fix the build drm/amdgpu: enable UVD VM only on polaris drm/amdgpu: increase timeout of IB test drm/amdgpu: add destroy session when generate VCE destroy msg. drm/amd: fix deadlock of job_list_lock V2 ...
2016-08-01Merge git://www.linux-watchdog.org/linux-watchdogLinus Torvalds1-4/+6
Pull watchdog updates from Wim Van Sebroeck: "Core: - min and max timeout improvements, WDOG_HW_RUNNING improvements, status funtionality - Add a device managed API for watchdog_register_device() New watchdog drivers: - Aspeed SoCs - Maxim PMIC MAX77620 - Amlogic Meson GXBB SoC Enhancements: - support for the r8a7796 watchdog device - support for F81866 watchdog device - support for 5th variation of Apollo Lake - support for MCP78S chipset - clean-up of softdog.c watchdog device driver - pic32-wdt and pic32-dmt fixes - Documentation/watchdog: watchdog-test improvements - several other fixes and improvements" * git://www.linux-watchdog.org/linux-watchdog: (50 commits) watchdog: gpio_wdt: Fix missing platform_set_drvdata() in gpio_wdt_probe() watchdog: core: Clear WDOG_HW_RUNNING before calling the stop function watchdog: core: Fix error handling of watchdog_dev_init() watchdog: pic32-wdt: Fix return value check in pic32_wdt_drv_probe() watchdog: pic32-dmt: Remove .owner field for driver watchdog: pic32-wdt: Remove .owner field for driver watchdog: renesas-wdt: Add support for the r8a7796 wdt Documentation/watchdog: check return value for magic close watchdog: sbsa: Drop status function watchdog: Implement status function in watchdog core watchdog: tangox: Set max_hw_heartbeat_ms instead of max_timeout watchdog: change watchdog_need_worker logic watchdog: add support for MCP78S chipset in nv_tco watchdog: bcm2835_wdt: remove redundant ->set_timeout callback watchdog: bcm2835_wdt: constify _ops and _info structures dt-bindings: watchdog: Add Meson GXBB Watchdog bindings watchdog: Add Meson GXBB Watchdog Driver watchdog: qcom: configure BARK time in addition to BITE time watchdog: qcom: add option for standalone watchdog not in timer block watchdog: qcom: update device tree bindings ...
2016-07-29Merge tag 'topic/drm-misc-2016-07-28' of ↵Dave Airlie1-26/+29
git://anongit.freedesktop.org/drm-intel into drm-next A few more simple fixes that Sean&I collected. There's a bunch of bigger things on dri-devel, but I think those are all too late for 4.8 really. I'll try and go collect them after -rc1 for 4.9. * tag 'topic/drm-misc-2016-07-28' of git://anongit.freedesktop.org/drm-intel: drm/arm: mali-dp: Fix error return code in malidp_bind() drm/arm: mali-dp: Remove redundant dev_err call in malidp_bind() drm/gma500: remove unnecessary stub for fb_ioctl() apple-gmux: Sphinxify docs drm/arm: mali-dp: Set crtc.port to the port instead of the endpoint drm/sti: use new Reset API drm/etnaviv: Optimize error handling in etnaviv_gem_new_userptr() drm/etnaviv: Delete unnecessary checks before two function calls drm/vmwgfx: Delete an unnecessary check before the function call "vfree" drm/qxl: Delete an unnecessary check before drm_gem_object_unreference_unlocked() drm/mgag200: Delete an unnecessary check before drm_gem_object_unreference_unlocked() drm/bridge: ps8622: Delete an unnecessary check before backlight_device_unregister() GPU-DRM-GMA500: Delete unnecessary checks before two function calls GPU-DRM-OMAP: Delete unnecessary checks before two function calls
2016-07-28apple-gmux: Sphinxify docsLukas Wunner1-26/+29
Convert asciidoc-formatted docs to rst in accordance with Jonathan's and Jani's effort to use sphinx for kernel-doc rendering in 4.8. Cc: Jonathan Corbet <corbet@lwn.net> Cc: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Lukas Wunner <lukas@wunner.de> Acked-by: Darren Hart <dvhart@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/4c1b29986fa77772156b1af0c965d3799e43a47b.1467628307.git.lukas@wunner.de
2016-07-27Merge tag 'platform-drivers-x86-v4.8-1' of ↵Linus Torvalds16-211/+717
git://git.infradead.org/users/dvhart/linux-platform-drivers-x86 Pull x8 platform driver updates from Darren Hart: "Several new quirks and tweaks for new platforms to existing laptop drivers. A new ACPI virtual power button driver, similar to the intel-hid driver. A rework of the dell keymap, using a single sparse keymap for all machines. A few fixes and cleanups. Summary: intel-vbtn: - new driver for Intel Virtual Button intel_pmc_core: - Convert to DEFINE_DEBUGFS_ATTRIBUTE fujitsu-laptop: - Rework brightness of eco led asus-wmi: - Add quirk_no_rfkill_wapf4 for the Asus X456UA - Add quirk_no_rfkill_wapf4 for the Asus X456UF - Add quirk_no_rfkill for the Asus Z550MA - Add quirk_no_rfkill for the Asus U303LB - Add quirk_no_rfkill for the Asus N552VW - Create quirk for airplane_mode LED - Add ambient light sensor toggle key asus-wireless: - Toggle airplane mode LED intel_telemetry: - Remove Monitor MWAIT feature dependency intel-hid: - Remove duplicated acpi_remove_notify_handler fujitsu-laptop: - Add support for eco LED - Support touchpad toggle hotkey on Skylake-based models - Remove unused macros - Use module name in debug messages hp-wmi: - Fix wifi cannot be hard-unblocked toshiba_acpi: - Bump driver version and update copyright year - Remove the position sysfs entry - Add IIO interface for accelerometer axis data dell-wmi: - Add a WMI event code for display on/off - Generate one sparse keymap for all machines - Add information about other WMI event codes - Sort WMI event codes and update comments - Ignore WMI event code 0xe045" * tag 'platform-drivers-x86-v4.8-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86: (26 commits) intel-vbtn: new driver for Intel Virtual Button intel_pmc_core: Convert to DEFINE_DEBUGFS_ATTRIBUTE fujitsu-laptop: Rework brightness of eco led asus-wmi: Add quirk_no_rfkill_wapf4 for the Asus X456UA asus-wmi: Add quirk_no_rfkill_wapf4 for the Asus X456UF asus-wmi: Add quirk_no_rfkill for the Asus Z550MA asus-wmi: Add quirk_no_rfkill for the Asus U303LB asus-wmi: Add quirk_no_rfkill for the Asus N552VW asus-wmi: Create quirk for airplane_mode LED asus-wireless: Toggle airplane mode LED intel_telemetry: Remove Monitor MWAIT feature dependency intel-hid: Remove duplicated acpi_remove_notify_handler asus-wmi: Add ambient light sensor toggle key fujitsu-laptop: Add support for eco LED fujitsu-laptop: Support touchpad toggle hotkey on Skylake-based models fujitsu-laptop: Remove unused macros fujitsu-laptop: Use module name in debug messages hp-wmi: Fix wifi cannot be hard-unblocked toshiba_acpi: Bump driver version and update copyright year toshiba_acpi: Remove the position sysfs entry ...
2016-07-26Merge branch 'x86-platform-for-linus' of ↵Linus Torvalds2-2/+4
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 platform updates from Ingo Molnar: "The main changes in this cycle were: - Intel-SoC enhancements (Andy Shevchenko) - Intel CPU symbolic model definition rework (Dave Hansen) - ... other misc changes" * 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (25 commits) x86/sfi: Enable enumeration of SD devices x86/pci: Use MRFLD abbreviation for Merrifield x86/platform/intel-mid: Make vertical indentation consistent x86/platform/intel-mid: Mark regulators explicitly defined x86/platform/intel-mid: Rename mrfl.c to mrfld.c x86/platform/intel-mid: Enable spidev on Intel Edison boards x86/platform/intel-mid: Extend PWRMU to support Penwell x86/pci, x86/platform/intel_mid_pci: Remove duplicate power off code x86/platform/intel-mid: Add pinctrl for Intel Merrifield x86/platform/intel-mid: Enable GPIO expanders on Edison x86/platform/intel-mid: Add Power Management Unit driver x86/platform/atom/punit: Enable support for Merrifield x86/platform/intel_mid_pci: Rework IRQ0 workaround x86, thermal: Clean up and fix CPU model detection for intel_soc_dts_thermal x86, mmc: Use Intel family name macros for mmc driver x86/intel_telemetry: Use Intel family name macros for telemetry driver x86/acpi/lss: Use Intel family name macros for the acpi_lpss driver x86/cpufreq: Use Intel family name macros for the intel_pstate cpufreq driver x86/platform: Use new Intel model number macros x86/intel_idle: Use Intel family macros for intel_idle ...
2016-07-25Merge branch 'perf-core-for-linus' of ↵Linus Torvalds1-4/+5
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf updates from Ingo Molnar: "With over 300 commits it's been a busy cycle - with most of the work concentrated on the tooling side (as it should). The main kernel side enhancements were: - Add per event callchain limit: Recently we introduced a sysctl to tune the max-stack for all events for which callchains were requested: $ sysctl kernel.perf_event_max_stack kernel.perf_event_max_stack = 127 Now this patch introduces a way to configure this per event, i.e. this becomes possible: $ perf record -e sched:*/max-stack=2/ -e block:*/max-stack=10/ -a allowing finer tuning of how much buffer space callchains use. This uses an u16 from the reserved space at the end, leaving another u16 for future use. There has been interest in even finer tuning, namely to control the max stack for kernel and userspace callchains separately. Further discussion is needed, we may for instance use the remaining u16 for that and when it is present, assume that the sample_max_stack introduced in this patch applies for the kernel, and the u16 left is used for limiting the userspace callchain (Arnaldo Carvalho de Melo) - Optimize AUX event (hardware assisted side-band event) delivery (Kan Liang) - Rework Intel family name macro usage (this is partially x86 arch work) (Dave Hansen) - Refine and fix Intel LBR support (David Carrillo-Cisneros) - Add support for Intel 'TopDown' events (Andi Kleen) - Intel uncore PMU driver fixes and enhancements (Kan Liang) - ... other misc changes. Here's an incomplete list of the tooling enhancements (but there's much more, see the shortlog and the git log for details): - Support cross unwinding, i.e. collecting '--call-graph dwarf' perf.data files in one machine and then doing analysis in another machine of a different hardware architecture. This enables, for instance, to do: $ perf record -a --call-graph dwarf on a x86-32 or aarch64 system and then do 'perf report' on it on a x86_64 workstation (He Kuang) - Allow reading from a backward ring buffer (one setup via sys_perf_event_open() with perf_event_attr.write_backward = 1) (Wang Nan) - Finish merging initial SDT (Statically Defined Traces) support, see cset comments for details about how it all works (Masami Hiramatsu) - Support attaching eBPF programs to tracepoints (Wang Nan) - Add demangling of symbols in programs written in the Rust language (David Tolnay) - Add support for tracepoints in the python binding, including an example, that sets up and parses sched:sched_switch events, tools/perf/python/tracepoint.py (Jiri Olsa) - Introduce --stdio-color to set up the color output mode selection in 'annotate' and 'report', allowing emit color escape sequences when redirecting the output of these tools (Arnaldo Carvalho de Melo) - Add 'callindent' option to 'perf script -F', to indent the Intel PT call stack, making this output more ftrace-like (Adrian Hunter, Andi Kleen) - Allow dumping the object files generated by llvm when processing eBPF scriptlet events (Wang Nan) - Add stackcollapse.py script to help generating flame graphs (Paolo Bonzini) - Add --ldlat option to 'perf mem' to specify load latency for loads event (e.g. cpu/mem-loads/ ) (Jiri Olsa) - Tooling support for Intel TopDown counters, recently added to the kernel (Andi Kleen)" * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (303 commits) perf tests: Add is_printable_array test perf tools: Make is_printable_array global perf script python: Fix string vs byte array resolving perf probe: Warn unmatched function filter correctly perf cpu_map: Add more helpers perf stat: Balance opening and reading events tools: Copy linux/{hash,poison}.h and check for drift perf tools: Remove include/linux/list.h from perf's MANIFEST tools: Copy the bitops files accessed from the kernel and check for drift Remove: kernel unistd*h files from perf's MANIFEST, not used perf tools: Remove tools/perf/util/include/linux/const.h perf tools: Remove tools/perf/util/include/asm/byteorder.h perf tools: Add missing linux/compiler.h include to perf-sys.h perf jit: Remove some no-op error handling perf jit: Add missing curly braces objtool: Initialize variable to silence old compiler objtool: Add -I$(srctree)/tools/arch/$(ARCH)/include/uapi perf record: Add --tail-synthesize option perf session: Don't warn about out of order event if write_backward is used perf tools: Enable overwrite settings ...
2016-07-25mfd: cros_ec: Add cros_ec_cmd_xfer_status() helperTomeu Vizoso1-0/+17
So that callers of cros_ec_cmd_xfer() don't have to repeat boilerplate code when checking for errors from the EC side. Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> Reviewed-by: Benson Leung <bleung@chromium.org> Signed-off-by: Brian Norris <briannorris@chromium.org> Acked-by: Lee Jones <lee.jones@linaro.org> Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2016-07-22intel-vbtn: new driver for Intel Virtual ButtonAceLan Kao3-0/+201
This driver supports power button event in Intel Virtual Button currently. New Dell XPS 13 requires this driver for the power button. This driver is copied/modified from intel-hid.c Most credit goes to the author of intel-hid.c, Alex Hung <alex.hung@canonical.com> Signed-off-by: AceLan Kao <acelan.kao@canonical.com> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-07-17x86: Fix Apollo Lake Watchdog address in PMC driverYong, Jonathan1-4/+6
The TCO I/O base is 40h rather than the usual 30h, and the re_reboot bit is at ACPIBASE+8. Signed-off-by: Yong, Jonathan <jonathan.yong@intel.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2016-07-06intel_pmc_core: Convert to DEFINE_DEBUGFS_ATTRIBUTEAndy Shevchenko2-37/+11
Refactor the code to use the recently introduced DEFINE_DEBUGFS_ATTRIBUTE() macro to eliminate boilerplate code. Make the absence of DEBUG_FS a non-fatal error. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-and-tested-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@intel.com> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-07-06fujitsu-laptop: Rework brightness of eco ledMatej Groma1-3/+2
For the sake of internal consistency, unset maximum brightness of eco led and make it activatable only on values >= LED_FULL. Signed-off-by: Matej Groma <matejgroma@gmail.com> Acked-by: Jonathan Woithe <jwoithe@just42.net> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-07-06platform/chrome: cros_ec_dev - double fetch bug in ioctlDan Carpenter1-1/+7
We verify "u_cmd.outsize" and "u_cmd.insize" but we need to make sure that those values have not changed between the two copy_from_user() calls. Otherwise it could lead to a buffer overflow. Additionally, cros_ec_cmd_xfer() can set s_cmd->insize to a lower value. We should use the new smaller value so we don't copy too much data to the user. Reported-by: Pengfei Wang <wpengfeinudt@gmail.com> Fixes: a841178445bb ('mfd: cros_ec: Use a zero-length array for command data') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Kees Cook <keescook@chromium.org> Tested-by: Gwendal Grignou <gwendal@chromium.org> Cc: <stable@vger.kernel.org> # v4.2+ Signed-off-by: Olof Johansson <olof@lixom.net>
2016-07-02asus-wmi: Add quirk_no_rfkill_wapf4 for the Asus X456UAJoão Paulo Rechi Vita1-1/+1
The Asus X456UA has an airplane-mode indicator LED and the WMI WLAN user bit set, so asus-wmi uses ASUS_WMI_DEVID_WLAN_LED (0x00010002) to store the wlan state, which has a side-effect of driving the airplane mode indicator LED in an inverted fashion. quirk_no_rfkill prevents asus-wmi from registering RFKill switches at all for this laptop and allows asus-wireless to drive the LED through the ASHS ACPI device. This laptop already has a quirk for setting WAPF=4, so use quirk_no_rfkill_wapf4, which both disables rfkill and sets WAPF=4. Signed-off-by: João Paulo Rechi Vita <jprvita@endlessm.com> Reported-by: Angela Traeger <angie@endlessm.com> Reviewed-by: Corentin Chary <corentin.chary@gmail.com> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-07-02asus-wmi: Add quirk_no_rfkill_wapf4 for the Asus X456UFJoão Paulo Rechi Vita1-1/+6
The Asus X456UF has an airplane-mode indicator LED and the WMI WLAN user bit set, so asus-wmi uses ASUS_WMI_DEVID_WLAN_LED (0x00010002) to store the wlan state, which has a side-effect of driving the airplane mode indicator LED in an inverted fashion. quirk_no_rfkill prevents asus-wmi from registering RFKill switches at all for this laptop and allows asus-wireless to drive the LED through the ASHS ACPI device. This laptop already has a quirk for setting WAPF=4, so this commit creates a new quirk, quirk_no_rfkill_wapf4, which both disables rfkill and sets WAPF=4. Signed-off-by: João Paulo Rechi Vita <jprvita@endlessm.com> Reported-by: Carlo Caione <carlo@endlessm.com> Reviewed-by: Corentin Chary <corentin.chary@gmail.com> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-07-02asus-wmi: Add quirk_no_rfkill for the Asus Z550MAJoão Paulo Rechi Vita1-0/+9
The Asus Z550MA has an airplane-mode indicator LED and the WMI WLAN user bit set, so asus-wmi uses ASUS_WMI_DEVID_WLAN_LED (0x00010002) to store the wlan state, which has a side-effect of driving the airplane mode indicator LED in an inverted fashion. quirk_no_rfkill prevents asus-wmi from registering RFKill switches at all for this laptop and allows asus-wireless to drive the LED through the ASHS ACPI device. Signed-off-by: João Paulo Rechi Vita <jprvita@endlessm.com> Reported-by: Ming Shuo Chiu <chiu@endlessm.com> Reviewed-by: Corentin Chary <corentin.chary@gmail.com> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-07-02asus-wmi: Add quirk_no_rfkill for the Asus U303LBJoão Paulo Rechi Vita1-0/+9
The Asus U303LB has an airplane-mode indicator LED and the WMI WLAN user bit set, so asus-wmi uses ASUS_WMI_DEVID_WLAN_LED (0x00010002) to store the wlan state, which has a side-effect of driving the airplane mode indicator LED in an inverted fashion. quirk_no_rfkill prevents asus-wmi from registering RFKill switches at all for this laptop and allows asus-wireless to drive the LED through the ASHS ACPI device. Signed-off-by: João Paulo Rechi Vita <jprvita@endlessm.com> Reported-by: Mousou Yuu <guogaishiwo@gmail.com> Reviewed-by: Corentin Chary <corentin.chary@gmail.com> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-07-02asus-wmi: Add quirk_no_rfkill for the Asus N552VWJoão Paulo Rechi Vita1-0/+9
The Asus N552VW has an airplane-mode indicator LED and the WMI WLAN user bit set, so asus-wmi uses ASUS_WMI_DEVID_WLAN_LED (0x00010002) to store the wlan state, which has a side-effect of driving the airplane mode indicator LED in an inverted fashion. quirk_no_rfkill prevents asus-wmi from registering RFKill switches at all for this laptop and allows asus-wireless to drive the LED through the ASHS ACPI device. Signed-off-by: João Paulo Rechi Vita <jprvita@endlessm.com> Reviewed-by: Corentin Chary <corentin.chary@gmail.com> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-07-02asus-wmi: Create quirk for airplane_mode LEDJoão Paulo Rechi Vita3-3/+19
Some Asus laptops that have an airplane-mode indicator LED, also have the WMI WLAN user bit set, and the following bits in their DSDT: Scope (_SB) { (...) Device (ATKD) { (...) Method (WMNB, 3, Serialized) { (...) If (LEqual (IIA0, 0x00010002)) { OWGD (IIA1) Return (One) } } } } So when asus-wmi uses ASUS_WMI_DEVID_WLAN_LED (0x00010002) to store the wlan state, it drives the airplane-mode indicator LED (through the call to OWGD) in an inverted fashion: the LED is ON when airplane mode is OFF (since wlan is ON), and vice-versa. This commit creates a quirk to not register a RFKill switch at all for these laptops, to allow the asus-wireless driver to drive the airplane mode LED correctly through the ASHS ACPI device. It also adds a match to that quirk for the Asus X555UB, which is affected by this problem. Signed-off-by: João Paulo Rechi Vita <jprvita@endlessm.com> Reviewed-by: Corentin Chary <corentin.chary@gmail.com> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-07-02asus-wireless: Toggle airplane mode LEDJoão Paulo Rechi Vita2-1/+92
In the ASHS device we have the HSWC method, which calls either OWGD or OWGS, depending on its parameter: Device (ASHS) { Name (_HID, "ATK4002") // _HID: Hardware ID Method (HSWC, 1, Serialized) { If ((Arg0 < 0x02)) { OWGD (Arg0) Return (One) } If ((Arg0 == 0x02)) { Local0 = OWGS () If (Local0) { Return (0x05) } Else { Return (0x04) } } If ((Arg0 == 0x03)) { Return (0xFF) } If ((Arg0 == 0x04)) { OWGD (Zero) Return (One) } If ((Arg0 == 0x05)) { OWGD (One) Return (One) } If ((Arg0 == 0x80)) { Return (One) } } Method (_STA, 0, NotSerialized) // _STA: Status { If ((MSOS () >= OSW8)) { Return (0x0F) } Else { Return (Zero) } } } On the Asus laptops that do not have an airplane mode LED, OWGD has an empty implementation and OWGS simply returns 0. On the ones that have an airplane mode LED these methods have the following implementation: Method (OWGD, 1, Serialized) { SGPL (0x0203000F, Arg0) SGPL (0x0203000F, Arg0) } Method (OWGS, 0, Serialized) { Store (RGPL (0x0203000F), Local0) Return (Local0) } Where OWGD(1) sets the airplane mode LED ON, OWGD(0) set it off, and OWGS() returns its state. This commit exposes the airplane mode indicator LED to userspace under the name asus-wireless::airplane, so it can be driven according to userspace's policy. Signed-off-by: João Paulo Rechi Vita <jprvita@endlessm.com> Reviewed-by: Corentin Chary <corentin.chary@gmail.com> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-06-29intel_telemetry: Remove Monitor MWAIT feature dependencyYu, Ong Hock2-2/+2
Telemetry capability does not depend on Monitor MWAIT feature. Signed-off-by: "Yu, Ong Hock" <ong.hock.yu@intel.com> Acked-by: Souvik Kumar Chakravarty <souvik.k.chakravarty@intel.com> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-06-29intel-hid: Remove duplicated acpi_remove_notify_handlerAlex Hung1-3/+2
The second call to acpi_remove_notify_handler does not result in panic or generate error messages, but it is unnecessary and the function returns with an error. Remove the duplicate call. Correct two improperly indented lines. Signed-off-by: Alex Hung <alex.hung@canonical.com> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-06-29asus-wmi: Add ambient light sensor toggle keyNick Leiten1-0/+1
Ausu laptops issue key 0x7A when the toggle ALS key is pressed (Fn+A on Asus U38N). Update the key_entry so userspace can handle the event. Tested on Asus U38N. Signed-off-by: Nick Leiten <nickleiten@gmail.com> Reviewed-By: Corentin Chary <corentin.chary@gmail.com> [dvhart: cleaned up commit message and comment line length] Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-06-29fujitsu-laptop: Add support for eco LEDMatej Groma1-0/+56
There is an indicator LED signaling activated power saving mode on certain Fujitsu laptop models. This has currently no use on Linux. Export it to userspace. Signed-off-by: Matej Groma <matejgroma@gmail.com> Acked-by: Jonathan Woithe <jwoithe@just42.net> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-06-29fujitsu-laptop: Support touchpad toggle hotkey on Skylake-based modelsMichał Kępień1-0/+14
Haswell-based Fujitsu laptops (Lifebook E734/E744/E754) have a touchpad toggle hotkey (Fn+F4) which is handled transparently to the operating system: while an ACPI notification is sent to FUJ02B1 when Fn+F4 is pressed, touchpad state is properly toggled without any explicit support for this operation in fujitsu-laptop. Skylake-based models (Lifebook E736/E746/E756) also have that hotkey, but the touchpad is not toggled transparently to the operating system. When Fn+F4 is pressed, an ACPI notification is sent to FUJ02E3. A subsequent call to S000 (FUNC_RFKILL) can be used to determine whether the touchpad toggle hotkey was pressed so that an input event can be sent to userspace. Relevant ACPI code: Method (_L21, 0, NotSerialized) { ... If (AHKF) { Notify (\_SB.FEXT, 0x80) } ... } Method (S000, 3, Serialized) { Name (_T_0, Zero) Local0 = Zero While (One) { _T_0 = Arg0 If (_T_0 == Zero) { Local0 |= 0x04000000 Local0 |= 0x02000000 Local0 |= 0x00020000 Local0 |= 0x0200 Local0 |= 0x0100 Local0 |= 0x20 } ElseIf (_T_0 == One) { ... If (AHKF & 0x08) { Local0 |= 0x04000000 AHKF ^= 0x08 } ... } ... Break } Return (Local0) } Pressing Fn+F4 raises GPE 0x21 and sets bit 3 in AHKF. This in turn results in bit 26 being set in the value returned by FUNC_RFKILL called with 1 as its first argument. On Skylake-based models, bit 26 is also set in the value returned by FUNC_RFKILL called with 0 as its first argument (this value is saved in fujitsu_hotkey->rfkill_supported upon module initialization), which suggests that this bit is set on models which do not handle touchpad toggling transparently to the operating system. Note that bit 3 is cleared in AHKF once FUNC_RFKILL is called with 1 as its first argument, which requires fujitsu-laptop to handle this hotkey in a different manner than the other, GIRB-based hotkeys: two input events (press and release) are immediately sent once Fn+F4 is pressed. Reported-and-tested-by: Jan-Marek Glogowski <glogow@fbihome.de> Signed-off-by: Michał Kępień <kernel@kempniu.pl> Acked-by: Jonathan Woithe <jwoithe@just42.net> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-06-29fujitsu-laptop: Remove unused macrosMichał Kępień1-10/+0
FUJLAPTOP_* macros were introduced by 20b9373, but have never been used except FUJLAPTOP_DEBUG, which was made redundant by the previous patch. ACPI_VIDEO_NOTIFY_* macros were also introduced by 20b9373, but they have not been needed since 1696d9d. Signed-off-by: Michał Kępień <kernel@kempniu.pl> Acked-by: Jonathan Woithe <jwoithe@just42.net> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-06-29fujitsu-laptop: Use module name in debug messagesMichał Kępień1-1/+1
vdbg_printk() always prefixes the log messages it generates with "FUJ02B1", which can be misleading, because it might have been called while handling a notify for ACPI device FUJ02E3 or during module initialization etc. Employ pr_fmt() to prefix debug messages with the module name instead and thus avoid confusion. Reported-by: Jan-Marek Glogowski <glogow@fbihome.de> Signed-off-by: Michał Kępień <kernel@kempniu.pl> Acked-by: Jonathan Woithe <jwoithe@just42.net> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-06-29hp-wmi: Fix wifi cannot be hard-unblockedAlex Hung1-1/+6
Several users reported wifi cannot be unblocked as discussed in [1]. This patch removes the use of the 2009 flag by BIOS but uses the actual WMI function calls - it will be skipped if WMI reports unsupported. [1] https://bugzilla.kernel.org/show_bug.cgi?id=69131 Signed-off-by: Alex Hung <alex.hung@canonical.com> Tested-by: Evgenii Shatokhin <eugene.shatokhin@yandex.ru> Cc: stable@vger.kernel.org Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-06-29toshiba_acpi: Bump driver version and update copyright yearAzael Avalos1-2/+2
After several fixes, and added support for more features (WWAN, Cooling Method and IIO accelometer axis data), bump the driver version to 0.24. Also update the copyright year. Signed-off-by: Azael Avalos <coproscefalo@gmail.com> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-06-29toshiba_acpi: Remove the position sysfs entryAzael Avalos1-25/+0
Now that we have proper support for the acceleromeer under the IIO subsystem, the _position_ sysfs file is now deprecated. This patch removes all code related to the position sysfs entry. Signed-off-by: Azael Avalos <coproscefalo@gmail.com> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-06-29toshiba_acpi: Add IIO interface for accelerometer axis dataAzael Avalos2-0/+108
This patch adds the accelerometer axis data to the IIO subsystem. Currently reporting the X, Y and Z values, as no other data can be queried given the fact that the accelerometer chip itself is hidden behind the Toshiba proprietary interface. Signed-off-by: Azael Avalos <coproscefalo@gmail.com> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-06-27Merge tag 'v4.7-rc5' into perf/core, to pick up fixesIngo Molnar3-30/+69
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-06-21dell-wmi: Add a WMI event code for display on/offAlex Hung1-0/+3
Some new Dell AIO systems have a button that generates a WMI event to turn the LCD on/off. Signed-off-by: Alex Hung <alex.hung@canonical.com> Acked-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-06-17dell-wmi: Generate one sparse keymap for all machinesPali Rohár1-111/+104
This patch reworks code for generating sparse keymap and processing WMI events. It unifies procedure for generating sparse keymap and also unifies big switch code for processing WMI events of different types. After this patch dell-wmi driver does not differ between "old" and "new" hotkey type. It constructs sparse keymap table with all WMI codes. It is because on some laptops (e.g. Dell Latitude E6440) ACPI/firmware send both event types (old and new). Each WMI code in sparse keymap table is prefixed by 16bit event type, so it does not change functionality on laptops with "old" hotkey support (those without scancodes in DMI). This allow us to distinguish between same WMI codes with different types in sparse keymap. Thanks to this WMI events of type 0x0011 were moved from big switch into sparse keymap table too. This patch also fixes possible bug in parsing WMI event buffer introduced in commit 5ea2559726b7 ("dell-wmi: Add support for new Dell systems"). That commit changed buffer type from int* to u16* without fixing code. More at: http://lkml.iu.edu/hypermail/linux/kernel/1507.0/01950.html Signed-off-by: Pali Rohár <pali.rohar@gmail.com> Tested-by: Michał Kępień <kernel@kempniu.pl> Reviewed-by: Michał Kępień <kernel@kempniu.pl> Tested-by: Gabriele Mazzotta <gabriele.mzt@gmail.com> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-06-17dell-wmi: Add information about other WMI event codesPali Rohár1-0/+35
ACPI DSDT tables have defined other WMI codes, but does not contain any description when those codes are emitted. Some other codes can be found in logs on internet. In this patch are all which I saw, but lot of them are not tested properly (e.g. for duplicate events with AT keyboard). Now we have all WMI event codes at one place and in future after proper testing those codes can be correctly enabled or disabled... Signed-off-by: Pali Rohár <pali.rohar@gmail.com> Tested-by: Michał Kępień <kernel@kempniu.pl> Reviewed-by: Michał Kępień <kernel@kempniu.pl> Tested-by: Gabriele Mazzotta <gabriele.mzt@gmail.com> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-06-17dell-wmi: Sort WMI event codes and update commentsPali Rohár1-13/+16
For better readability of keymap table, sort events by codes and also update comments for events to be more informative. Signed-off-by: Pali Rohár <pali.rohar@gmail.com> Tested-by: Michał Kępień <kernel@kempniu.pl> Reviewed-by: Michał Kępień <kernel@kempniu.pl> Tested-by: Gabriele Mazzotta <gabriele.mzt@gmail.com> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-06-17dell-wmi: Ignore WMI event code 0xe045Pali Rohár1-1/+12
>From Dell we know that WMI event code 0xe045 is for Num Lock key, but it is unclear due to message in commit 0b3f6109f0c9 ("dell-wmi: new driver for hotkey control"). Signed-off-by: Pali Rohár <pali.rohar@gmail.com> Tested-by: Michał Kępień <kernel@kempniu.pl> Tested-by: Gabriele Mazzotta <gabriele.mzt@gmail.com> Reviewed-by: Michał Kępień <kernel@kempniu.pl> Cc: Matthew Garrett <mjg@redhat.com> Cc: Mario Limonciello <mario_limonciello@dell.com> Link: https://lkml.org/lkml/2015/7/7/830 Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-06-08platform/x86: Drop duplicate dependencies on X86Jean Delvare1-6/+4
The whole menu depends on X86 so there is no point in repeating this dependency on individual driver entries. Signed-off-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-06-08thinkpad_acpi: Add support for HKEY version 0x200Dennis Wassenberg1-24/+63
Lenovo Thinkpad devices T460, T460s, T460p, T560, X260 use HKEY version 0x200 without adaptive keyboard. HKEY version 0x200 has method MHKA with one parameter value. Passing parameter value 1 will get hotkey_all_mask (the same like HKEY version 0x100 without parameter). Passing parameter value 2 to MHKA method will retrieve hotkey_all_adaptive_mask. If 0 is returned in that case there is no adaptive keyboard available. Signed-off-by: Dennis Wassenberg <dennis.wassenberg@secunet.com> Signed-off-by: Lyude <cpaul@redhat.com> Tested-by: Lyude <cpaul@redhat.com> Tested-by: Marco Trevisan <marco@ubuntu.com> Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> [dvhart: Keep MHKA error string on one line in new and existing pr_err calls] Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-06-08ideapad_laptop: Add an event for mic mute hotkeyAlex Hung1-0/+2
Newer ideapads support a new mic hotkey implemented via an ACPI interface. This patch converts the mic mute event to a keycode KEY_MICMUTE. Signed-off-by: Alex Hung <alex.hung@canonical.com> Acked-by: Ike Panhc <ike.pan@canonical.com> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-06-08x86/intel_telemetry: Use Intel family name macros for telemetry driverDave Hansen2-2/+4
Another straightforward replacement of magic numbers. Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Acked-by: Darren Hart <dvhart@infradead.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Dave Hansen <dave@sr71.net> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Souvik Kumar Chakravarty <souvik.k.chakravarty@intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: jacob.jun.pan@intel.com Cc: platform-driver-x86@vger.kernel.org Link: http://lkml.kernel.org/r/20160603001947.05102C3E@viggo.jf.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-06-08x86/pmc_core: Use Intel family name macros for pmc_core driverDave Hansen1-4/+5
Another straightforward replacement of magic numbers. Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Acked-by: Darren Hart <dvhart@infradead.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Dave Hansen <dave@sr71.net> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rajneesh Bhardwaj <rajneesh.bhardwaj@intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vishwanath Somayaji <vishwanath.somayaji@intel.com> Cc: jacob.jun.pan@intel.com Cc: platform-driver-x86@vger.kernel.org Link: http://lkml.kernel.org/r/20160603001949.7D5B9534@viggo.jf.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-05-28Merge tag 'chrome-platform' of ↵Linus Torvalds8-15/+230
git://git.kernel.org/pub/scm/linux/kernel/git/olof/chrome-platform Pull chrome platform updates from Olof Johansson "A handful of Chrome driver and binding changes this merge window: - a few patches to fix probing and configuration of pstore - a few patches adding Elan touchpad registration on a few devices - EC changes: a security fix dealing with max message sizes and addition of compat_ioctl support. - keyboard backlight control support There was also an accidential duplicate registration of trackpads on 'Leon', which was reverted just recently" * tag 'chrome-platform' of git://git.kernel.org/pub/scm/linux/kernel/git/olof/chrome-platform: Revert "platform/chrome: chromeos_laptop: Add Leon Touch" platform/chrome: chromeos_laptop - Add Elan touchpad for Wolf platform/chrome: chromeos_laptop - Add elan trackpad option for C720 platform/chrome: cros_ec_dev - Populate compat_ioctl platform/chrome: cros_ec_lightbar - use name instead of ID to hide lightbar attributes platform/chrome: cros_ec_dev - Fix security issue platform/chrome: Add Chrome OS keyboard backlight LEDs support platform/chrome: use to_platform_device() platform/chrome: pstore: Move to larger record size. platform/chrome: pstore: probe for ramoops buffer using acpi platform/chrome: chromeos_laptop: Add Leon Touch
2016-05-28Revert "platform/chrome: chromeos_laptop: Add Leon Touch"Benson Leung1-15/+0
This reverts commit bff3c624dc7261a084a4d25a0b09c3fb0fec872a. Board "Leon" is otherwise known as "Toshiba CB35" and we already have the entry that supports that board as of this commit : 963cb6f platform/chrome: chromeos_laptop - Add Toshiba CB35 Touch Remove this duplicate. Signed-off-by: Benson Leung <bleung@chromium.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2016-05-27Merge tag 'platform-drivers-x86-v4.7-1' of ↵Linus Torvalds15-52/+482
git://git.infradead.org/users/dvhart/linux-platform-drivers-x86 Pull x86 platform driver updates from Darren Hart: "Mostly minor updates and cleanups. One new power management controller driver for Intel Core SoCs. platform/x86: - Add PMC Driver for Intel Core SoC dell-rbtn: - Ignore ACPI notifications if device is suspended thinkpad_acpi: - save kbdlight state on suspend and restore it on resume intel_menlow: - reduce code duplication asus-wmi: - provide access to ALS control ideapad-laptop: - add a new WMI string for ESC key surfacepro3_button: - Add a warning when switching to tablet mode sony-laptop: - Avoid oops on module unload for older laptops intel_telemetry: - Constify telemetry_core_ops structures fujitsu-laptop: - Use IS_ENABLED() instead of checking for built-in or module asus-laptop: - correct error handling in sysfs_acpi_set - remove redundant initializers - correct error handling in asus_read_brightness() fujitsu-laptop: - Support radio LED" * tag 'platform-drivers-x86-v4.7-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86: platform/x86: Add PMC Driver for Intel Core SoC dell-rbtn: Ignore ACPI notifications if device is suspended thinkpad_acpi: save kbdlight state on suspend and restore it on resume intel_menlow: reduce code duplication asus-wmi: provide access to ALS control ideapad-laptop: add a new WMI string for ESC key surfacepro3_button: Add a warning when switching to tablet mode sony-laptop: Avoid oops on module unload for older laptops intel_telemetry: Constify telemetry_core_ops structures fujitsu-laptop: Use IS_ENABLED() instead of checking for built-in or module asus-laptop: correct error handling in sysfs_acpi_set asus-laptop: remove redundant initializers asus-laptop: correct error handling in asus_read_brightness() fujitsu-laptop: Support radio LED
2016-05-27platform/x86: Add PMC Driver for Intel Core SoCRajneesh Bhardwaj4-0/+264
This patch adds the Power Management Controller driver as a PCI driver for Intel Core SoC architecture. This driver can utilize debugging capabilities and supported features as exposed by the Power Management Controller. Please refer to the below specification for more details on PMC features. http://www.intel.in/content/www/in/en/chipsets/100-series-chipset-datasheet-vol-2.html The current version of this driver exposes SLP_S0_RESIDENCY counter. This counter can be used for detecting fragile SLP_S0 signal related failures and take corrective actions when PCH SLP_S0 signal is not asserted after kernel freeze as part of suspend to idle flow (echo freeze > /sys/power/state). Intel Platform Controller Hub (PCH) asserts SLP_S0 signal when it detects favorable conditions to enter its low power mode. As a pre-requisite the SoC should be in deepest possible Package C-State and devices should be in low power mode. For example, on Skylake SoC the deepest Package C-State is Package C10 or PC10. Suspend to idle flow generally leads to PC10 state but PC10 state may not be sufficient for realizing the platform wide power potential which SLP_S0 signal assertion can provide. SLP_S0 signal is often connected to the Embedded Controller (EC) and the Power Management IC (PMIC) for other platform power management related optimizations. In general, SLP_S0 assertion == PC10 + PCH low power mode + ModPhy Lanes power gated + PLL Idle. As part of this driver, a mechanism to read the SLP_S0_RESIDENCY is exposed as an API and also debugfs features are added to indicate SLP_S0 signal assertion residency in microseconds. echo freeze > /sys/power/state wake the system cat /sys/kernel/debug/pmc_core/slp_s0_residency_usec Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@intel.com> Signed-off-by: Vishwanath Somayaji <vishwanath.somayaji@intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-05-27dell-rbtn: Ignore ACPI notifications if device is suspendedGabriele Mazzotta1-0/+56
Some BIOSes unconditionally send an ACPI notification to RBTN when the system is resuming from suspend. This makes dell-rbtn send an input event to userspace as if a function key was pressed. Prevent this by ignoring all the notifications received while the device is suspended. Link: https://bugzilla.kernel.org/show_bug.cgi?id=106031 Signed-off-by: Gabriele Mazzotta <gabriele.mzt@gmail.com> Tested-by: Alex Hung <alex.hung@canonical.com> Reviewed-by: Pali Rohár <pali.rohar@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-05-27thinkpad_acpi: save kbdlight state on suspend and restore it on resumeMarco Trevisan (Treviño)1-3/+40
Override default LED class suspend/resume handles, by keeping track of the brightness level before suspending so that it can be automatically restored on resume by calling default resume handler. Signed-off-by: Marco Trevisan (Treviño) <mail@3v1n0.net> Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-05-27intel_menlow: reduce code duplicationRasmus Villemoes1-27/+22
aux0_show and aux1_show consists of almost identical code. Pull that into a common helper and make them thin wrappers. Similarly for _store. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-24 01:28:52 +0300