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b7e155e166
The DSDT of all Windows BYT / CHT devices which I have seen has proper ACPI powermagement for the clk and regulators used by the sensors. So there is no need for the whole custom atomisp_gmin custom code to disable the ACPI pm and directly poke at the PMIC for this. Replace all the atomisp_gmin usage with using the new atomisp_register_sensor_no_gmin() / atomisp_unregister_subdev() helpers which allow registering a sensor with the atomisp code without using any of the atomisp_gmin power-management code. Note eventually these calls should be replaced by the standard v4l2_async_register_subdev_sensor() mechanism. But this first requires a bunch of work to the atomisp main code to make it set the necessary fwnodes up, similar to how drivers/media/pci/intel/ipu3/cio2-bridge.c does this. This has been tested on: -Trekstor Surftab duo W1 10.1, CHT, AXP288 PMIC, 2x ov2680 sensor -Asus T101HA, CHT, TI PMIC, 1x ov2680 sensor -MPMAN Converter 9, BYT, AXP288 PMIC, ov2680 back, gc0310 front sensor Reviewed-by: Andy Shevchenko <andy@kernel.org> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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.