kernel.git/drivers/platform/x86/Kconfig, branch linux-6.4.y

platform/x86: Add driver for Yoga Tablet Mode switch

2023-04-06T10:33:34Z

This WMI driver for the tablet mode control switch for Lenovo Yoga notebooks was originally written by Gergo Koteles. The mode is mapped to a SW_TABLET_MODE switch capable input device. Andrew followed the suggestions that were posted in reply to Gergo's RFC patch, and on the v1 & v2 versions of this patch to follow-up and get it merged. Changes from Gergo's RFC: - Refactored obtaining a reference to the EC ACPI device needed for the quirk implementation as suggested by Hans de Goede - Applied small fixes and switched to always registering handles with the driver for automatic cleanup as suggested by Barnabás Pőcze. - Merged the lenovo_ymc_trigger_ec function with the ideapad_trigger_ymc_next_read function since it was no longer external. - Added the word "Tablet" to the driver description to hopefully make it more clear. - Fixed the LENOVO_YMC_QUERY_METHOD ID and the name string for the EC APCI device trigged for the quirk - Triggered the input event on probe so that the initial tablet mode state when the driver is loaded is reported to userspace as suggested by Armin Wolf. - Restricted the permissions of the ec_trigger parameter as suggested by Armin Wolf. Also updated the description. We have tested this on the Yoga 7 14AIL7 for the non-quirk path and on the Yoga 7 14ARB7 which has the firmware bug that requires triggering the embedded controller to send the mode change events. This workaround is also used by the Windows drivers. According to reports at https://github.com/lukas-w/yoga-usage-mode, which uses the same WMI devices, the following models should also work: Yoga C940, Ideapad flex 14API, Yoga 9 14IAP7, Yoga 7 14ARB7, etc. Signed-off-by: Gergo Koteles Co-developed-by: Andrew Kallmeyer Signed-off-by: Andrew Kallmeyer Link: https://lore.kernel.org/r/20221004214332.35934-1-soyer@irl.hu/ Link: https://lore.kernel.org/r/20230310041726.217447-1-kallmeyeras@gmail.com/ Link: https://lore.kernel.org/r/20230323025200.5462-1-kallmeyeras@gmail.com/ Tested-by: André Apitzsch Link: https://lore.kernel.org/r/20230329014559.44494-3-kallmeyeras@gmail.com Reviewed-by: Hans de Goede Signed-off-by: Hans de Goede

platform/x86: Add new msi-ec driver

2023-03-27T14:10:20Z

Add a new driver to allow various MSI laptops' functionalities to be controlled from userspace. This includes such features as power profiles (aka shift modes), fan speed, charge thresholds, LEDs, etc. This driver contains EC memory configurations for different firmware versions and exports battery charge thresholds to userspace (note, that start and end thresholds control the same EC parameter and are always 10% apart). Link: https://github.com/BeardOverflow/msi-ec/ Link: https://github.com/BeardOverflow/msi-ec/pull/13 Cc: Aakash Singh Cc: Jose Angel Pastrana Signed-off-by: Nikita Kravets Link: https://lore.kernel.org/r/20230320225509.3559-1-teackot@gmail.com Reviewed-by: Hans de Goede Signed-off-by: Hans de Goede

Merge tag 'ib-pdx86-backlight-6.4' into review-hans

2023-03-16T13:40:52Z

Immutable branch between pdx86 and backlight due for the v6.4 merge window

backlight: apple_bl: Use acpi_video_get_backlight_type()

2023-03-16T12:33:11Z

On some MacBooks both the apple_bl and the apple-gmux backlight drivers may be able to export a /sys/class/backlight device. To avoid having 2 backlight devices for one LCD panel until now the apple-gmux driver has been calling apple_bl_unregister() to move the apple_bl backlight device out of the way when it loads. Similar problems exist on other x86 laptops and all backlight drivers which may be used on x86 laptops have moved to using acpi_video_get_backlight_type() to determine whether they should load or not. Switch apple_bl to this model too, so that it is consistent with all the other x86 backlight drivers. Besides code-simplification and consistency this has 2 other benefits: 1) It removes a race during boot where userspace will briefly see an apple_bl backlight and then have it disappear again, leading to e.g.: https://bbs.archlinux.org/viewtopic.php?id=269920 2) This allows user to switch between the drivers by passing acpi_backlight=apple_gmux or acpi_backlight=vendor on the kernel commandline. Signed-off-by: Hans de Goede Reviewed-by: Daniel Thompson Acked-by: Lee Jones Link: https://lore.kernel.org/r/20230307120540.389920-1-hdegoede@redhat.com

platform/x86: x86-android-tablets: Add support for the Dolby button on Peaq C1010

2023-03-07T11:08:31Z

The Peaq C1010 tablet has a special "Dolby" button. This button has a WMI interface, but this is broken in several ways: 1. It only supports polling 2. The value read on polling goes from 0 -> 1 for one poll on both edges of the button, with no way to tell which edge causes the poll to return 1. 3. It uses a non unique GUID (it uses the Microsoft docs WMI example GUID). There currently is a WMI driver for this, but it uses several kludges to work around these issues and is not entirely reliable due to 2. Replace the unreliable WMI driver by using the x86-android-tablets code to instantiate a gpio_keys device for this. Signed-off-by: Hans de Goede Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20230301092331.7038-11-hdegoede@redhat.com

platform/x86: x86-android-tablets: Move into its own subdir

2023-03-07T11:08:30Z

Move the x86-android-tablets code into its own subdir, this is a preparation patch for splitting the somewhat large file into multiple smaller files. Signed-off-by: Hans de Goede Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20230301092331.7038-3-hdegoede@redhat.com

platform: x86: MLX_PLATFORM: select REGMAP instead of depending on it

2023-03-07T10:37:27Z

REGMAP is a hidden (not user visible) symbol. Users cannot set it directly thru "make *config", so drivers should select it instead of depending on it if they need it. Consistently using "select" or "depends on" can also help reduce Kconfig circular dependency issues. Therefore, change the use of "depends on REGMAP" to "select REGMAP". Fixes: ef0f62264b2a ("platform/x86: mlx-platform: Add physical bus number auto detection") Signed-off-by: Randy Dunlap Cc: Vadim Pasternak Cc: Darren Hart Cc: Hans de Goede Cc: Mark Gross Cc: platform-driver-x86@vger.kernel.org Link: https://lore.kernel.org/r/20230226053953.4681-7-rdunlap@infradead.org Signed-off-by: Hans de Goede Reviewed-by: Hans de Goede

platform/x86: apple_gmux: Drop no longer used ACPI_VIDEO Kconfig dependency

2023-02-02T21:48:20Z

The apple_gmux code no longer uses any symbols from the ACPI_VIDEO code, so that dependency can be dropped. Signed-off-by: Hans de Goede Link: https://lore.kernel.org/r/20230123154512.852921-1-hdegoede@redhat.com

platform/x86: Move existing HP drivers to a new hp subdir

2022-11-16T07:48:19Z

The purpose of this patch is to provide a central location where all HP related drivers are found. HP drivers will recide under drivers/platform/x86/hp directory. Introduce changes to Kconfig file to list all HP driver under "HP X86 Platform Specific Device Drivers" menu option. Additional changes include update MAINTAINERS file to indicate hp related drivers new path. Signed-off-by: Jorge Lopez Link: https://lore.kernel.org/r/20221020201033.12790-2-jorge.lopez2@hp.com Reviewed-by: Hans de Goede Signed-off-by: Hans de Goede

platform/x86: Battery charge mode in toshiba_acpi (sysfs)

2022-09-09T19:58:16Z

This commit adds the ACPI battery hook which in turns adds the sysfs entries. Because the Toshiba laptops only support two modes (eco or normal), which in testing correspond to 80% and 100% we simply round to the nearest possible level when set. It is possible that Toshiba laptops other than the Z830 has different set points for the charging. If so, a quirk table could be introduced in the future for this. For now, assume that all laptops that support this feature work the same way. Tested on a Toshiba Satellite Z830. Signed-off-by: Arvid Norlander Link: https://lore.kernel.org/r/20220902180037.1728546-3-lkml@vorpal.se Reviewed-by: Hans de Goede Signed-off-by: Hans de Goede