Re: [PATCH 02/12] Input: synaptics - do not invert y if 0

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In some cases, however, y = 0 is sent by the touchpad.
In these cases, the kernel driver should not invert, and just report 0.

This patch also refactors the inversion into a macro, and moves it
into packet processing instead of during position reporting.

The patch seems to invert the current output?

By 'current' do you mean referenced from the previous implementation?
Or referenced from the raw input.
It does indeed invert the raw input.
This is the same as the previous implementation did.
The difference is that it does not also invert the special 'y=0' into
an arbitrarily large value.
Is this your concern?

It would be clearer to just change the argument of the
input_report_abs() instances, would it not? An explanation why zero,
outside the value range, should be output also needs a rationale. It
would seem such packets should be masked somehow.

Thanks,
Henrik