a1e2d6c849
commit d6ed52583034f9d2e39dead7c18e03380fd4edf2 upstream.
The MediaTek keypad has a set of bits representing keys,
from KEY0 to KEY77, arranged in 5 chunks of 15 bits split into 5 32-bit
registers.
In our implementation, we simply decided to use register number as row
and offset in the register as column when encoding our "matrix".
Because of this, we can have a 5x32 matrix which does not match the
hardware at all, which is confusing.
Change the row/column calculation to match the hardware.
Fixes: f28af984e771 ("Input: mt6779-keypad - add MediaTek keypad driver")
Co-developed-by: Fabien Parent <fparent@baylibre.com>
Signed-off-by: Fabien Parent <fparent@baylibre.com>
Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Link: https://lore.kernel.org/r/20220707075236.126631-2-mkorpershoek@baylibre.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
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Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
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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.