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On devices with 2 cameras and no _DSM / EFI-vars providing CsiPort clock info, defaulting to CsiPort 0 obviously is wrong for 1 of the 2 cameras. The Intel Cherry Trail (ISP2401) reference design combines: pmc_plt_clk_2 with CsiPort 0 pmc_plt_clk_4 with CsiPort 1 The Intel Bay Trail (ISP2400) reference design combines: pmc_plt_clk_1 with CsiPort 0 pmc_plt_clk_0 with CsiPort 1 Use this knowledge to set the default CsiPort value based on the detected CLK for the sensor. Link: https://lore.kernel.org/linux-media/20220116215204.307649-9-hdegoede@redhat.com 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.