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4d6bde512a
linux/drivers/platform/x86
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Hans de Goede 4d6bde512a platform/x86: dell-laptop: Filter out spurious keyboard backlight change events 
On some Dell XPS models WMI events of type 0x0000 reporting a keycode of
0xe00c get reported when the brightness of the LCD panel changes.

This leads to us reporting false-positive kbd_led change events to
userspace which in turn leads to the kbd backlight OSD showing when it
should not.

We already read the current keyboard backlight brightness value when
reporting events because the led_classdev_notify_brightness_hw_changed
API requires this. Compare this value to the last known value and filter
out duplicate events, fixing this.

Note the fixed issue is esp. a problem on XPS models with an ambient light
sensor and automatic brightness adjustments turned on, this causes the kbd
backlight OSD to show all the time there.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1514969
Fixes: 9c656b0799 ("platform/x86: dell-*: Call new led hw_changed API ...")
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2018-01-16 17:24:15 +02:00
..
acer-wireless.c platform/x86: Add Acer Wireless Radio Control driver 2017-11-27 13:39:11 +02:00
acer-wmi.c platform/x86: acer-wmi: Using zero as first WMI instance number 2017-06-20 20:23:17 +03:00
acerhdf.c platform/x86: acerhdf: Add const to thermal_cooling_device_ops structure 2017-06-21 14:12:46 -07:00
alienware-wmi.c platform/x86: alienware-wmi: lightbar LED support for Dell Inspiron 5675 2017-11-27 13:39:11 +02:00
amilo-rfkill.c
apple-gmux.c apple-gmux: Don't switch external DP port on 2011+ MacBook Pros 2017-03-30 22:42:30 +02:00
asus-laptop.c platform/x86: asus-laptop: remove sparse_keymap_free() calls 2017-03-14 22:58:02 -07:00
asus-nb-wmi.c platform/x86: asus-nb-wmi: Support ALS on the Zenbook UX430UQ 2017-11-27 13:39:11 +02:00
asus-wireless.c platform/x86: asus-wireless: send an EV_SYN/SYN_REPORT between state changes 2017-12-11 16:31:07 -08:00
asus-wmi.c platform/x86: asus-wmi: Add lightbar led support 2017-09-27 00:26:54 -07:00
asus-wmi.h platform/x86: asus-wmi: try to set als by default 2017-04-28 21:52:24 +03:00
classmate-laptop.c
compal-laptop.c dmi: Mark all struct dmi_system_id instances const 2017-09-14 11:59:30 +02:00
dell-laptop.c platform/x86: dell-laptop: Filter out spurious keyboard backlight change events 2018-01-16 17:24:15 +02:00
dell-rbtn.c platform/x86: dell-rbtn: constify rfkill_ops structures 2017-06-13 11:00:21 -07:00
dell-rbtn.h
dell-smbios-smm.c platform/x86: dell-smbios-smm: test for WSMT 2017-11-03 16:33:59 -07:00
dell-smbios-wmi.c platform/x86: dell-smbios-wmi: Disable userspace interface if missing hotfix 2017-11-20 12:38:43 -08:00
dell-smbios.c platform/x86: dell-smbios: fix string overflow 2017-11-08 12:58:29 -08:00
dell-smbios.h platform/x86: dell-smbios-wmi: introduce userspace interface 2017-11-03 16:34:00 -07:00
dell-smo8800.c platform/x86: dell-smo8800: remove redundant assignments to byte_data 2017-11-05 13:53:14 +02:00
dell-wmi-aio.c platform/x86: dell-wmi-aio: remove sparse_keymap_free() calls 2017-03-14 22:58:04 -07:00
dell-wmi-descriptor.c platform/x86: dell-smbios-wmi: Disable userspace interface if missing hotfix 2017-11-20 12:38:43 -08:00
dell-wmi-descriptor.h platform/x86: dell-smbios-wmi: Disable userspace interface if missing hotfix 2017-11-20 12:38:43 -08:00
dell-wmi-led.c platform/x86: dell-wmi-led: Adjust instance of wmi_evaluate_method calls to 0 2017-06-28 09:01:36 -07:00
dell-wmi.c platform/x86: dell-wmi: Add an event created by Dell Latitude 5495 2017-12-21 14:56:27 +02:00
eeepc-laptop.c platform/x86: eeepc-laptop: constify platform_attribute_group 2017-06-30 20:13:01 -07:00
eeepc-wmi.c
fujitsu-laptop.c platform/x86: fujitsu-laptop: Fix radio LED detection 2017-10-30 13:20:11 +02:00
fujitsu-tablet.c
gpd-pocket-fan.c platform/x86: Add driver for GPD pocket custom fan controller 2017-12-21 14:56:28 +02:00
hdaps.c dmi: Mark all struct dmi_system_id instances const 2017-09-14 11:59:30 +02:00
hp_accel.c platform/x86: hp_accel: Add quirk for HP ProBook 440 G4 2017-10-27 20:54:01 +03:00
hp-wireless.c platform/x86: hp-wireless: reuse module_acpi_driver 2017-04-28 21:51:25 +03:00
hp-wmi.c platform/x86: hp-wmi: Fix tablet mode detection for convertibles 2017-11-05 13:53:14 +02:00
ibm_rtl.c dmi: Mark all struct dmi_system_id instances const 2017-09-14 11:59:30 +02:00
ideapad-laptop.c platform/x86: ideapad-laptop: Add Y720-15IKB to no_hw_rfkill 2018-01-08 12:56:29 +02:00
intel_bxtwc_tmu.c platform/x86: intel_bxtwc_tmu: Remove first level IRQ unmask 2017-06-19 15:45:30 +01:00
intel_cht_int33fe.c platform/x86: intel_cht_int33fe: Update fusb302 type string, add properties 2017-11-03 13:52:28 +02:00
intel_chtdc_ti_pwrbtn.c platform/x86: Add support for Dollar Cove TI power button 2017-11-27 13:39:11 +02:00
intel_int0002_vgpio.c platform/x86: intel_int0002_vgpio: Remove IRQF_NO_THREAD irq flag 2017-11-27 13:39:11 +02:00
intel_ips.c platform/x86: intel_ips: Convert timers to use timer_setup() 2017-11-05 13:53:14 +02:00
intel_ips.h platform/x86: intel_ips: Remove FSF address from GPL notice 2017-10-08 21:07:15 +03:00
intel_menlow.c platform/x86: intel_menlow: Add const to thermal_cooling_device_ops structure 2017-06-21 14:13:10 -07:00
intel_mid_powerbtn.c platform/x86: intel_mid_powerbtn: make mid_pb_ddata const 2017-08-13 15:27:10 +03:00
intel_mid_thermal.c platform/x86: intel_mid_thermal: Fix module autoload 2017-02-03 14:04:53 +02:00
intel_oaktrail.c dmi: Mark all struct dmi_system_id instances const 2017-09-14 11:59:30 +02:00
intel_pmc_core.c platform/x86: intel_pmc_core: Fix file permission warnings 2018-01-16 17:24:15 +02:00
intel_pmc_core.h platform/x86: intel_pmc_core: Fix kernel doc for pmc_dev 2018-01-16 17:24:15 +02:00
intel_pmc_ipc.c platform/x86: intel_pmc_ipc: Add read64 API 2017-11-27 13:39:11 +02:00
intel_punit_ipc.c platform/x86: intel_punit_ipc: Fix resource ioremap warning 2017-11-05 13:53:14 +02:00
intel_scu_ipc.c platform/x86: intel_scu_ipc: make intel_scu_ipc_pdata_t const 2017-08-13 15:27:10 +03:00
intel_scu_ipcutil.c
intel_telemetry_core.c platform/x86: intel_telemetry: cleanup redundant headers 2017-10-23 20:01:52 +03:00
intel_telemetry_debugfs.c platform/x86: intel_telemetry: Remove redundancies 2017-11-27 13:39:11 +02:00
intel_telemetry_pltdrv.c platform/x86: intel_telemetry: Add needed inclusion 2017-10-27 19:18:43 +03:00
intel_turbo_max_3.c platform/x86: intel_turbo_max_3: Add Skylake platform 2017-10-27 20:54:01 +03:00
intel-hid.c intel-hid: add a DMI quirk to support Wacom MobileStudio Pro 2017-12-11 16:43:38 -08:00
intel-rst.c
intel-smartconnect.c platform/x86: Use ACPI_FAILURE at appropriate places 2016-12-13 09:29:01 -08:00
intel-vbtn.c platform/x86: intel-vbtn: Simplify autorelease logic 2017-12-11 16:30:51 -08:00
intel-wmi-thunderbolt.c platform/x86: intel-wmi-thunderbolt: Silence error cases 2017-09-22 15:08:19 -07:00
Kconfig platform/x86: intel_pmc_core: Update Kconfig 2018-01-16 17:24:15 +02:00
Makefile platform/x86: Add driver for GPD pocket custom fan controller 2017-12-21 14:56:28 +02:00
mlx-platform.c platform/x86: mlx-platform: make a couple of structures static 2017-10-16 13:45:07 -07:00
mlxcpld-hotplug.c platform/x86: Introduce support for Mellanox hotplug driver 2016-10-23 07:52:57 -07:00
msi-laptop.c dmi: Mark all struct dmi_system_id instances const 2017-09-14 11:59:30 +02:00
msi-wmi.c platform/x86: msi-wmi: remove unnecessary static in msi_wmi_notify() 2017-07-25 09:56:38 -07:00
mxm-wmi.c platform/x86: mxm-wmi: Evaluate wmi method with instance number 0x0 2017-08-13 15:55:05 +03:00
panasonic-laptop.c platform/x86: panasonic-laptop: constify attribute_group structures. 2017-07-11 09:22:53 -07:00
peaq-wmi.c platform/x86: peaq-wmi: Remove unnecessary checks from peaq_wmi_exit 2017-11-03 13:32:09 +02:00
pmc_atom.c platform/x86: pmc_atom: introduce DEFINE_SHOW_ATTRIBUTE() macro 2017-12-21 14:56:26 +02:00
pvpanic.c
samsung-laptop.c dmi: Mark all struct dmi_system_id instances const 2017-09-14 11:59:30 +02:00
samsung-q10.c dmi: Mark all struct dmi_system_id instances const 2017-09-14 11:59:30 +02:00
silead_dmi.c platform/x86: silead_dmi: Add entry for the Teclast X98 Plus II 2018-01-02 15:30:03 -08:00
sony-laptop.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
surface3_button.c platform/x86: surface3_button: Propagate error from gpiod_count() 2017-03-16 21:52:12 +01:00
surface3-wmi.c platform/x86: surface3-wmi: fix uninitialized symbol 2017-01-21 01:43:42 +02:00
surfacepro3_button.c
tc1100-wmi.c
thinkpad_acpi.c platform/x86: thinkpad_acpi: Accept flat mode for type 4 multi mode status 2017-12-21 14:56:27 +02:00
topstar-laptop.c platform/x86: topstar-laptop: Add new device id 2017-05-15 16:15:50 -07:00
toshiba_acpi.c platform/x86: toshiba_acpi: drop assignment of iio_info.driver_module 2017-08-22 22:14:59 +01:00
toshiba_bluetooth.c platform/x86: toshiba_bluetooth: Decouple an error checking status code 2016-09-23 16:21:06 -07:00
toshiba_haps.c platform/x86: toshiba_haps: constify haps_attr_group 2017-06-28 09:01:37 -07:00
toshiba-wmi.c dmi: Mark all struct dmi_system_id instances const 2017-09-14 11:59:30 +02:00
wmi-bmof.c platform/x86: wmi*: Add recent copyright statements 2017-06-13 11:00:18 -07:00
wmi.c platform/x86: wmi: Call acpi_wmi_init() later 2018-01-05 17:35:27 -08:00
xo1-rfkill.c
xo15-ebook.c