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MMS345L is another first generation touch screen from Melfas, which uses mostly the same registers as MMS152. However, there is some garbage printed during initialization. Apparently MMS345L does not have the MMS152_COMPAT_GROUP register that is read+printed during initialization. TSP FW Rev: bootloader 0x6 / core 0x26 / config 0x26, Compat group: \x06 On earlier kernel versions the compat group was actually printed as an ASCII control character, seems like it gets escaped now. But we probably shouldn't print something from a random register. Add a separate "melfas,mms345l" compatible that avoids reading from the MMS152_COMPAT_GROUP register. This might also help in case there is some other device-specific quirk in the future. Signed-off-by: Stephan Gerhold <stephan@gerhold.net> Reviewed-by: Andi Shyti <andi@etezian.org> Link: https://lore.kernel.org/r/20200423102431.2715-1-stephan@gerhold.net Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.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.