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60c7353c6b
The drivers/platform/surface/surface3_button.c code is alsmost a 1:1 copy of the soc_button_array code. The only big difference is that it binds to an i2c_client rather then to a platform_device. The cause of this is the ACPI resources for the MSHW0028 device containing a bogus I2cSerialBusV2 resource which causes the kernel to instantiate an i2c_client for it instead of a platform_device. Add "MSHW0028" to the ignore_serial_bus_ids[] list in drivers/apci/scan.c, so that a platform_device will be instantiated and add support for the MSHW0028 HID to soc_button_array. This fully replaces surface3_button, which will be removed in a separate commit (since it binds to the now no longer created i2c_client it no longer does anyyhing after this commit). Note the MSHW0028 id is used by Microsoft to describe the tablet buttons on both the Surface 3 and the Surface 3 Pro and the actual API/implementation for the Surface 3 Pro is quite different. The changes in this commit should not impact the separate surfacepro3_button driver: 1. Because of the bogus I2cSerialBusV2 resource problem that driver binds to the acpi_device itself, so instantiating a platform_device instead of an i2c_client does not matter. 2. The soc_button_array driver will not bind to the MSHW0028 device on the Surface 3 Pro, because it has no GPIO resources. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Link: https://lore.kernel.org/r/20220224110241.9613-2-hdegoede@redhat.com |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.