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path: root/drivers/platform/x86/ideapad-laptop.h
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2024-08-12platform/x86: ideapad-laptop: move ACPI helpers from header to source fileGergo Koteles
Since moving ymc_trigger_ec from lenovo-ymc to ideapad-laptop, only the latter uses these definitions and functions. Move them back to source file. Signed-off-by: Gergo Koteles <soyer@irl.hu> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/57a48d2582b567f6c6fbcd3b379e17aee0fb5a94.1721898747.git.soyer@irl.hu Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2024-08-08platform/x86: ideapad-laptop: move ymc_trigger_ec from lenovo-ymcGergo Koteles
Some models need to trigger the EC after each YMC event for the yoga mode control to work properly. EC triggering consist of a VPC call from the lenovo-ymc module. Except for this, all VPC calls are in the ideapad-laptop module. Since ideapad-laptop has a notification chain, a new YMC_EVENT action can be added and triggered from the lenovo-ymc module. Then the ideapad-laptop can trigger the EC. If the triggering is in the ideapad-laptop module, then the ec_trigger module parameter should be there as well. Move the ymc_trigger_ec functionality and the ec_trigger module parameter to the ideapad-laptop module. Signed-off-by: Gergo Koteles <soyer@irl.hu> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/d980ab3ac32b5e554f456b0ff17279bfdbe2a203.1721898747.git.soyer@irl.hu Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2024-08-08platform/x86: ideapad-laptop: introduce a generic notification chainGergo Koteles
There are several cases where a notification chain can simplify Lenovo WMI drivers. Add a generic notification chain into ideapad-laptop. Signed-off-by: Gergo Koteles <soyer@irl.hu> Link: https://lore.kernel.org/r/c5a43efae8a32bd034c3d19c0a686941347575a7.1721898747.git.soyer@irl.hu Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2023-04-06platform/x86: Add driver for Yoga Tablet Mode switchGergo Koteles
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 <soyer@irl.hu> Co-developed-by: Andrew Kallmeyer <kallmeyeras@gmail.com> Signed-off-by: Andrew Kallmeyer <kallmeyeras@gmail.com> 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 <git@apitzsch.eu> Link: https://lore.kernel.org/r/20230329014559.44494-3-kallmeyeras@gmail.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-04-06platform/x86: Move ideapad ACPI helpers to a new headerAndrew Kallmeyer
These functions will be used by a driver written by Gergo Koteles to detect the tablet mode switch in Lenovo Yoga laptops. These changes were discussed in review of that patch. This is the minimal set of functions needed in that driver, there are several more small functions left in the ACPI Helpers section in ideapad-laptop.c. The only change is the functions are now marked inline as requested in the review comments. Signed-off-by: Andrew Kallmeyer <kallmeyeras@gmail.com> Link: https://lore.kernel.org/r/20221004214332.35934-1-soyer@irl.hu/ Tested-by: André Apitzsch <git@apitzsch.eu> Link: https://lore.kernel.org/r/20230329014559.44494-2-kallmeyeras@gmail.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>