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2017-07-11platform/x86: alienware-wmi: constify attribute_group structures.Arvind Yadav
attribute_groups are not supposed to change at runtime. All functions working with attribute_groups provided by <linux/sysfs.h> work with const attribute_group. So mark the non-const structs as const. File size before: text data bss dec hex filename 6932 1016 48 7996 1f3c drivers/platform/x86/alienware-wmi.o File size After adding 'const': text data bss dec hex filename 7060 888 48 7996 1f64 drivers/platform/x86/alienware-wmi.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2017-07-11platform/x86: samsung-laptop: constify attribute_group structures.Arvind Yadav
attribute_groups are not supposed to change at runtime. All functions working with attribute_groups provided by <linux/sysfs.h> work with const attribute_group. So mark the non-const structs as const. File size before: text data bss dec hex filename 8710 5452 23 14185 3769 drivers/platform/x86/samsung-laptop.o File size After adding 'const': text data bss dec hex filename 8774 5388 23 14185 3769 drivers/platform/x86/samsung-laptop.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2017-07-11platform/x86: compal-laptop: constify attribute_group structures.Arvind Yadav
attribute_groups are not supposed to change at runtime. All functions working with attribute_groups provided by <linux/sysfs.h> work with const attribute_group. So mark the non-const structs as const. File size before: text data bss dec hex filename 6781 6144 34 12959 329f drivers/platform/x86/compal-laptop.o File size After adding 'const': text data bss dec hex filename 6845 6080 34 12959 329f drivers/platform/x86/compal-laptop.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2017-07-11platform/x86: fujitsu-laptop: constify attribute_group structures.Arvind Yadav
attribute_groups are not supposed to change at runtime. All functions working with attribute_groups provided by <linux/sysfs.h> work with const attribute_group. So mark the non-const structs as const. File size before: text data bss dec hex filename 7474 1205 24 8703 21ff drivers/platform/x86/fujitsu-laptop.o File size After adding 'const': text data bss dec hex filename 7538 1141 24 8703 21ff drivers/platform/x86/fujitsu-laptop.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Reviewed-by: Jonathan Woithe <jwoithe@just42.net> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2017-07-11platform/x86: peaq-wmi: Fix peaq_ignore_events_counter handling off by 1Hans de Goede
If peaq_ignore_events_counter gets set to 1 we should skip polling 1 time, rather then ignoring it. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2017-07-07platform/x86: fujitsu-laptop: add NULL check on devm_kzalloc() return valueGustavo A. R. Silva
Check return value from call to devm_kzalloc() in order to prevent a NULL pointer dereference. This issue was detected using Coccinelle and the following semantic patch: @@ expression x; identifier fld; @@ * x = devm_kzalloc(...); ... when != x == NULL x->fld Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com> Reviewed-by: Jonathan Woithe <jwoithe@just42.net> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2017-07-06platform/x86: silead_dmi: Add touchscreen info for I.T.Works TW891 2-in-1Hans de Goede
Add touchscreen info for I.T.Works TW891 2-in-1. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2017-07-05platform/x86: ideapad-laptop: Fix indentation in DMI tableAndy Shevchenko
There are couple of places where 8 spaces are used instead of tabs. Replace former by latter. No functional change intended. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-07-05platform/x86: ideapad-laptop: Add several models to no_hw_rfkillYang Jiaxun
Some Lenovo ideapad models do not have hardware rfkill switches, but trying to read the rfkill switches through the ideapad-laptop module. It caused to always reported blocking breaking wifi. Fix it by adding those models to no_hw_rfkill_list. Signed-off-by: Yang Jiaxun <yjx@flygoat.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-07-05platform/x86: ideapad-laptop: Add IdeaPad V510-15IKB to no_hw_rfkillSven Eckelmann
Like other Lenovo models the IdeaPad V510-15IKB does not have an hw rfkill switch. This results in hard-blocked radios after boot, resulting in always blocked radios rendering them unusable. Add the IdeaPad V510-15IKB to the no_hw_rfkill DMI list and allows using the built-in radios. Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-07-05platform/x86: intel_telemetry: Add debugfs entry for S0ix residencyRajneesh Bhardwaj
This adds a debugfs consumer for the exported kernel API intel_pmc_read_s0ix_residency. This debugfs entry reads S0ix residency directly from the PMC hardware counters. TEST: - echo freeze > /sys/power/state - Wake the system, read the S0ix residency i.e. cat /sys/kernel/debug/telemetry/s0ix_residency_usec Signed-off-by: Shanth Murthy <shanth.murthy@intel.com> Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-07-05platform/x86: intel_telemetry_debugfs: fix some error codes in initDan Carpenter
There are bunch of "goto out;" paths where we don't set the error code. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-07-05platform/x86: intel_telemetry_debugfs: fix oops when load/unload modulePriyalee Kushwaha
This fixes an oops found while testing load/unload of the intel_telemetry_debugfs module. module_init uses register_pm_notifier for PM callbacks, but unregister_pm_notifier was missing from module_exit. [ 97.481860] BUG: unable to handle kernel paging request at ffffffffa006f010 [ 97.489742] IP: blocking_notifier_chain_register+0x3a/0xa0 [ 97.495898] PGD 2e0a067 [ 97.495899] PUD 2e0b063 [ 97.498737] PMD 179e29067 [ 97.501573] PTE 0 [ 97.508423] Oops: 0000 1 PREEMPT SMP [ 97.512724] Modules linked in: intel_telemetry_debugfs intel_rapl gpio_keys dwc3 udc_core intel_telemetry_pltdrv intel_punit_ipc intel_telemetry_core rtc_cmos efivars x86_pkg_temp_thermal iwlwifi snd_hda_codec_hdmi soc_button_array btusb cfg80211 btrtl mei_me hci_uart btbcm mei btintel i915 bluetooth intel_pmc_ipc snd_hda_intel spi_pxa2xx_platform snd_hda_codec dwc3_pci snd_hda_core tpm_tis tpm_tis_core tpm efivarfs [ 97.558453] CPU: 0 PID: 889 Comm: modprobe Not tainted 4.11.0-rc6-intel-dev-bkc #1 [ 97.566950] Hardware name: Intel Corp. Joule DVT3/SDS, BIOS GTPP181A.X64.0143.B30.1701132137 01/13/2017 [ 97.577518] task: ffff8801793a21c0 task.stack: ffff8801793f0000 [ 97.584162] RIP: 0010:blocking_notifier_chain_register+0x3a/0xa0 [ 97.590903] RSP: 0018:ffff8801793f3c58 EFLAGS: 00010286 [ 97.596802] RAX: ffffffffa006f000 RBX: ffffffff81e3ea20 RCX: 0000000000000000 [ 97.604812] RDX: ffff880179eaf210 RSI: ffffffffa0131000 RDI: ffffffff81e3ea20 [ 97.612821] RBP: ffff8801793f3c68 R08: 0000000000000006 R09: 000000000000005c [ 97.620847] R10: 0000000000000000 R11: 0000000000000006 R12: ffffffffa0131000 [ 97.628855] R13: 0000000000000000 R14: ffff880176e35f48 R15: ffff8801793f3ea8 [ 97.636865] FS: 00007f7eeba07700(0000) GS:ffff88017fc00000(0000) knlGS:0000000000000000 [ 97.645948] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 97.652423] CR2: ffffffffa006f010 CR3: 00000001775ef000 CR4: 00000000003406f0 [ 97.660423] Call Trace: [ 97.663166] ? 0xffffffffa0031000 [ 97.666885] register_pm_notifier+0x18/0x20 [ 97.671581] telemetry_debugfs_init+0x92/0x1000 Signed-off-by: Priyalee Kushwaha <priyalee.kushwaha@intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2017-06-30platform/x86: sony-laptop: constify attribute_group and input index arrayArvind Yadav
attribute_groups are not supposed to change at runtime. All functions working with attribute_groups provided by <linux/sysfs.h> work with const attribute_group. The content of sony_laptop_input_index does not change and is declared as a static global array. Constify spic_attribute_group and sony_laptop_input_index. File size before: text data bss dec hex filename 31273 5176 372 36821 8fd5 drivers/platform/x86/sony-laptop.o File size After adding 'const': text data bss dec hex filename 31337 5112 372 36821 8fd5 drivers/platform/x86/sony-laptop.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> [dvhart: updated commit message, includes fix suggested by Arnd Bergmann] Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2017-06-30platform/x86: fujitsu-laptop: rework debuggingMichał Kępień
Using a dedicated Kconfig option for enabling debugging means the user may be forced to recompile their kernel in order to gather debugging information, which is inconvenient. Replace custom debugging infrastructure with standard logging functions, taking advantage of dynamic debug. Replace a pr_info() call inside an ACPI callback with an acpi_handle_info() call. The following mapping was used: - FUJLAPTOP_DBG_ERROR -> acpi_handle_err() - FUJLAPTOP_DBG_WARN -> acpi_handle_info() / dev_info() - FUJLAPTOP_DBG_INFO -> acpi_handle_debug() - FUJLAPTOP_DBG_TRACE -> acpi_handle_debug() / dev_dbg() This means that some events which used to only be logged when the user explicitly requested it will now be logged by default: - ACPI method evaluation errors, - unknown ACPI notification codes, - unknown hotkey scancodes. The first type of events should happen rarely, if ever at all. The rest is interesting from driver development perspective as their presence in the logs will mean the driver is unaware of certain events, handling of which should be implemented. Signed-off-by: Michał Kępień <kernel@kempniu.pl> Reviewed-by: Jonathan Woithe <jwoithe@just42.net> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2017-06-30platform/x86: fujitsu-laptop: do not evaluate ACPI _INI methodsMichał Kępień
acpi_ns_initialize_devices(), which is called during system-wide ACPI initialization, already detects and calls all _INI methods belonging to objects present in ACPI tables. There is no need to call these methods again every time the module is loaded because they only initialize status flags and hotkey-related variables; status flags are effectively constants, hotkey-related variables may be assigned non-zero values before acpi_fujitsu_laptop_add() is called, but that does not really matter as we drain the scancodes queued in the firmware's ring buffer before doing anything else. Remove sections of code which invoke and check evaluation status of the _INI methods belonging to the ACPI devices handled by the driver. Signed-off-by: Michał Kępień <kernel@kempniu.pl> Reviewed-by: Jonathan Woithe <jwoithe@just42.net> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2017-06-30platform/x86: fujitsu-laptop: do not update ACPI device power statusMichał Kępień
Calling acpi_bus_update_power() for ACPI devices FUJ02B1 and FUJ02E3 is pointless as they are not power manageable (neither _PS0 nor _PR0 is defined for any of them), which causes their power state to be inherited from their parent devices. Given the ACPI paths of these two devices (\_SB.PCI0.LPCB.FJEX, \_SB.FEXT), their parent devices are also not power manageable. These parent devices will thus have their power state initialized to ACPI_STATE_D0, which in turn causes the power state for both FUJ02B1 and FUJ02E3 to always be ACPI_STATE_D0 ("on"). Remove relevant acpi_bus_update_power() calls along with parts of debug messages that they were supposed to have an effect on. Signed-off-by: Michał Kępień <kernel@kempniu.pl> Reviewed-by: Jonathan Woithe <jwoithe@just42.net> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2017-06-30platform/x86: fujitsu-laptop: sanitize hotkey input device identificationMichał Kępień
In the case of brightness-related FUJ02B1 ACPI device, initializing the input device associated with it identically as acpi-video initializes its input device makes sense. However, using the same data for the input device associated with the FUJ02E3 ACPI device makes little sense, because the latter has nothing to do with video and assigning an arbitrary product ID to it is redundant. Signed-off-by: Michał Kępień <kernel@kempniu.pl> Reviewed-by: Jonathan Woithe <jwoithe@just42.net> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2017-06-30platform/x86: fujitsu-laptop: use strcpy to set ACPI device names and classesMichał Kępień
No formatting is needed when setting ACPI device name and class, so switch to using strcpy() for this purpose. Signed-off-by: Michał Kępień <kernel@kempniu.pl> Reviewed-by: Jonathan Woithe <jwoithe@just42.net> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2017-06-30platform/x86: fujitsu-laptop: remove redundant safety checksMichał Kępień
Do not check whether the pointer passed to ACPI add callbacks is NULL as it is earlier dereferenced anyway in the bus-level probe callback, acpi_device_probe(). Do not check the value of acpi_disabled in fujitsu_init(), because it is already done by acpi_bus_register_driver(), which is the first function called by fujitsu_init(). Signed-off-by: Michał Kępień <kernel@kempniu.pl> Reviewed-by: Jonathan Woithe <jwoithe@just42.net> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2017-06-30platform/x86: msi-laptop: constify msipf*_attribute_groupArvind Yadav
File size before: text data bss dec hex filename 5396 5016 85 10497 2901 drivers/platform/x86/msi-laptop.o File size After adding 'const': text data bss dec hex filename 5524 4888 85 10497 2901 drivers/platform/x86/msi-laptop.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-06-30platform/x86: eeepc-laptop: constify platform_attribute_groupArvind Yadav
File size before: text data bss dec hex filename 9934 1136 2 11072 2b40 drivers/platform/x86/eeepc-laptop.o File size After adding 'const': text data bss dec hex filename 9998 1072 2 11072 2b40 drivers/platform/x86/eeepc-laptop.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-06-28platform/x86: toshiba_haps: constify haps_attr_groupArvind Yadav
File size before: text data bss dec hex filename 1471 528 8 2007 7d7 drivers/platform/x86/toshiba_haps.o File size After adding 'const': text data bss dec hex filename 1519 464 8 1991 7c7 drivers/platform/x86/toshiba_haps.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-06-28platform/x86: dell-wmi-led: Adjust instance of wmi_evaluate_method calls to 0Mario Limonciello
Pali recently noticed that WMI instances are zero indexed. The only reason that these calls all worked properly is because the ASL didn't verify the instance number. Signed-off-by: Louis Davis <louis.davis@dell.com> Signed-off-by: Mario Limonciello <mario.limonciello@dell.com> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2017-06-28platform/x86: alienware-wmi: Adjust instance of wmi_evaluate_method calls to 0Mario Limonciello
Pali recently noticed that WMI instances are zero indexed. The only reason that these calls all worked properly is because the ASL didn't verify the instance number. Signed-off-by: Mario Limonciello <mario.limonciello@dell.com> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2017-06-21platform/x86: intel_menlow: Add const to thermal_cooling_device_ops structureBhumika Goyal
Declare thermal_cooling_device_ops structure as const as it is only passed as an argument to the function thermal_cooling_device_register and this argument is of type const. So, declare the structure as const. Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2017-06-21platform/x86: acerhdf: Add const to thermal_cooling_device_ops structureBhumika Goyal
Declare thermal_cooling_device_ops structure as const as it is only passed as an argument to the function thermal_cooling_device_register and this argument is of type const. So, declare the structure as const. Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2017-06-20platform/x86: dell-laptop: Fix bogus keyboard backlight sysfs interfaceKai Heng Feng
Dell Latitude 3160 does not have keyboard backlight, but there is a sysfs interface for it, which does nothing at all. KBD_LED_ON_TOKEN is the only token can be found. Since it doesn't have KBD_LED_OFF_TOKEN or KBD_LED_AUTO_*_TOKEN, it should be safe to assume at least two tokens should be present to support keyboard backlight. Not all models have ON token - they may have multiple AUTO tokens instead. Models which do not use SMBIOS token to control keyboard backlight, also have this issue. Brightness level is 0 on these models. Verified on Dell Inspiron 3565. Reports keyboard backlight is supported only when at least two modes are present. Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Reviewed-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-06-20platform/x86: acer-wmi: Using zero as first WMI instance numberLee, Chun-Yi
Pali Rohár found that there have some wmi query/evaluation code that they used 'one' as the first WMI instance number. But the number is indexed from zero that it's must less than the instance_count in _WDG. This patch changes those instance number from one to zero. Cc: Darren Hart <dvhart@infradead.org> Cc: Andy Shevchenko <andy@infradead.org> Reviewed-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: "Lee, Chun-Yi" <jlee@suse.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-06-18platform/x86: ideapad-laptop: Add Y720-15IKBN to no_hw_rfkillOlle Liljenzin
Lenovo Legion Y720-15IKBN is yet another Lenovo model that does not have an hw rfkill switch, resulting in wifi always reported as hard blocked. Add the model to the list of models without rfkill switch. Signed-off-by: Olle Liljenzin <olle@liljenzin.se> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-06-18platform/x86: ideapad-laptop: Add Y520-15IKBN to no_hw_rfkillOlle Liljenzin
Lenovo Legion Y520-15IKBN is yet another Lenovo model that does not have an hw rfkill switch, resulting in wifi always reported as hard blocked. Add the model to the list of models without rfkill switch. Signed-off-by: Olle Liljenzin <olle@liljenzin.se> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-06-16platform/x86: silead_dmi: Add touchscreen info for PoV mobii wintab p800wHans de Goede
Add touchscreen info for the Point of View mobii wintab p800w tablet. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2017-06-15platform/x86: silead_dmi: Add touchscreen info for Pipo W2S tabletHans de Goede
Add touchscreen info for Pipo W2S tablet. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2017-06-13platform/x86: wmi: Fix printing info about WDG structurePali Rohár
object_id and notify_id are in one union structure and their meaning is defined by flags. Therefore do not print notify_id for non-event block and do not print object_id for event block. Remove also reserved member as it does not have any defined meaning or type yet. As object_id and notify_id union members overlaps and have different types, it caused that kernel print to dmesg binary data. This patch eliminates it. Signed-off-by: Pali Rohár <pali.rohar@gmail.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2017-06-13platform/x86: dell-rbtn: constify rfkill_ops structuresBhumika Goyal
Add const to rfkill_ops structures that are only passed as an argument to the functions rfkill_alloc or samsung_new_rfkill. These arguments are of type const, so such structures can be annotated with const. Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-06-13platform/x86: ideapad-laptop: constify rfkill_ops structureBhumika Goyal
Add const to rfkill_ops structure as it is only passed as an argument to the functions rfkill_alloc. This argument is of type const, so annotate the structure with const. Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-06-13platform/x86: samsung-laptop: constify rfkill_ops structuresBhumika Goyal
Add const to rfkill_ops structures that are only passed as an argument to the functions rfkill_alloc or samsung_new_rfkill. These arguments are of type const, so such structures can be annotated with const. Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-06-13platform/x86: wmi*: Add recent copyright statementsDarren Hart (VMware)
Add copyright statements for Andy Lutomirski and Darren Hart (VMware) for their contributions to the WMI bus infrastructure and the creation of the wmi-bmof driver. Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org> Cc: Andy Lutomirski <luto@kernel.org>
2017-06-13platform/x86: acer-wmi: Detect RF Button capabilityJoão Paulo Rechi Vita
If a machine reports a RF Button in the communication button device bitmap, we need to remove it before calling Get Device Status otherwise it will return the "Undefined device" (0xE2) error code. Although this may be a BIOS bug, we don't really need to get or set the RF Button status. The status indicator LED embedded in the button is controlled by firmware logic, depending on the status of the wireless radios present on the machine (WiFi || WWAN). This commit fixes the wireless status indicator LED on the Acer TravelMate P648-G2-MG, and cleans the following message from the kernel log: "Get Current Device Status failed: 0xe2 - 0x0". Signed-off-by: João Paulo Rechi Vita <jprvita@endlessm.com> Reviewed-by: "Lee, Chun-Yi" <joeyli.kernel@gmail.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-06-13platform/x86: panasonic-laptop: remove unused codeAlex Hung
The struct pcc_keyinput is not used in panasonic-laptop and in anywhere in kernel, and it can be removed. Signed-off-by: Alex Hung <alex.hung@canonical.com> Acked-by: Harald Welte <laforge@gnumonks.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-06-13platform/x86: samsung-laptop: Initialize loca variableAndy Shevchenko
The variable is used uninitialized which might come into unexpected behaviour on some Samsung laptops. Initialize it to 0xffff which seems a proper value for non-supported feature. Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-06-06platform/x86: dell-wmi: Convert to the WMI bus infrastructureAndy Lutomirski
Move some initialization out of _init and into _probe. Update signatures and logic to use the wmi bus and device structures. Signed-off-by: Andy Lutomirski <luto@kernel.org> [dvhart: drop deprecated sparse_keymap_free, order declarations, add commit msg] Cc: Andy Lutomirski <luto@amacapital.net> Cc: Mario Limonciello <mario_limonciello@dell.com> Cc: Pali Rohár <pali.rohar@gmail.com> Cc: linux-kernel@vger.kernel.org Cc: platform-driver-x86@vger.kernel.org Cc: linux-acpi@vger.kernel.org Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2017-06-06platform/x86: wmi-bmof: New driver to expose embedded Binary WMI MOF metadataDarren Hart (VMware)
Many laptops (and maybe servers?) have embedded WMI Binary MOF metadata. We do not yet have open-source tools for processing the data, although one is in the works thanks to Pali: https://github.com/pali/bmfdec There is currently no interface to get the data in the first place. By exposing it, we facilitate the development of new tools. This is based on the original work of Andy Lutomirski <luto@kernel.org>, but contains several modifications in response to various reviews. Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Mario Limonciello <mario_limonciello@dell.com> Cc: Pali Rohár <pali.rohar@gmail.com> Cc: linux-kernel@vger.kernel.org Cc: platform-driver-x86@vger.kernel.org Cc: linux-acpi@vger.kernel.org Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
2017-06-06platform/x86: wmi: Require query for data blocks, rename writable to setableDarren Hart (VMware)
The Microsoft WMI documentation requires all data blocks to implement the Query Control Method (WQxx). If we encounter a data block not implementing this control method, issue a warning, and ignore the data block. Remove the "readable" attribute as all data blocks must be readable (query-able). Be consistent with the language in the documentation, replace the "writable" attribute with "setable". Simplify (flatten) the control flow of wmi_create_device a bit while we are updating it for the above changes. Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Mario Limonciello <mario_limonciello@dell.com> Cc: Pali Rohár <pali.rohar@gmail.com> Cc: linux-kernel@vger.kernel.org Cc: platform-driver-x86@vger.kernel.org Cc: linux-acpi@vger.kernel.org Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-06platform/x86: wmi: Add an interface for subdrivers to access sibling devicesAndy Lutomirski
Some subdrivers need to access sibling devices. This gives them a clean way to do so. Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Mario Limonciello <mario_limonciello@dell.com> Cc: Pali Rohár <pali.rohar@gmail.com> Cc: linux-kernel@vger.kernel.org Cc: platform-driver-x86@vger.kernel.org Cc: linux-acpi@vger.kernel.org Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2017-06-06platform/x86: wmi: Bind the platform device, not the ACPI nodeAndy Lutomirski
We already have the PNP glue to instantiate platform devices for the ACPI devices that WMI drives. WMI should therefore attach to the platform device, not the ACPI node. Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Mario Limonciello <mario_limonciello@dell.com> Cc: Pali Rohár <pali.rohar@gmail.com> Cc: linux-kernel@vger.kernel.org Cc: platform-driver-x86@vger.kernel.org Cc: linux-acpi@vger.kernel.org Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2017-06-06platform/x86: wmi: Add a new interface to read block dataAndy Lutomirski
wmi_query_block is unnecessarily indirect. Add a straightforward method for wmi bus drivers to use to read block data. Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Mario Limonciello <mario_limonciello@dell.com> Cc: Pali Rohár <pali.rohar@gmail.com> Cc: linux-kernel@vger.kernel.org Cc: platform-driver-x86@vger.kernel.org Cc: linux-acpi@vger.kernel.org Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2017-06-06platform/x86: wmi: Incorporate acpi_install_notify_handlerAndy Lutomirski
As a platform driver, acpi_driver.notify will not be available, so use acpi_install_notify_handler as we will be converting to a platform driver. This gives event drivers a simple way to handle events. It also seems closer to what the Windows docs suggest that Windows does: it sounds like, in Windows, the mapper is responsible for called _WED before dispatching to the subdriver. Signed-off-by: Andy Lutomirski <luto@kernel.org> [dvhart: merge two development commits and update commit message] Cc: Andy Lutomirski <luto@amacapital.net> Cc: Mario Limonciello <mario_limonciello@dell.com> Cc: Pali Rohár <pali.rohar@gmail.com> Cc: linux-kernel@vger.kernel.org Cc: platform-driver-x86@vger.kernel.org Cc: linux-acpi@vger.kernel.org Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2017-06-06platform/x86: wmi: Instantiate all devices before adding themDarren Hart (VMware)
At some point, we will want sub-drivers to get references to other devices on the same WMI bus. This change is needed to avoid races. This ends up simplifying the setup code and fixing some leaks, too. This is based on the original work of Andy Lutomirski <luto@kernel.org>, but includes several modifications, many in response to review from Michał Kępień <kernel@kempniu.pl>: https://www.spinics.net/lists/platform-driver-x86/msg08201.html Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Mario Limonciello <mario_limonciello@dell.com> Cc: Pali Rohár <pali.rohar@gmail.com> Cc: linux-kernel@vger.kernel.org Cc: platform-driver-x86@vger.kernel.org Cc: linux-acpi@vger.kernel.org Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-06platform/x86: wmi: Probe data objects for read and write capabilitiesAndy Lutomirski
The Dell XPS 13 9350 has one RW data object, one RO data object, and one totally inaccessible data object. Check for the existence of the accessor methods and report in sysfs. The docs also permit WQxx getters for single-instance objects to take no parameters. Probe for that as well to avoid ACPICA warnings about mismatched signatures. Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Mario Limonciello <mario_limonciello@dell.com> Cc: Pali Rohár <pali.rohar@gmail.com> Cc: linux-kernel@vger.kernel.org Cc: platform-driver-x86@vger.kernel.org Cc: linux-acpi@vger.kernel.org Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
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