Jean-Sébastien Pédron 9402bd96df psm: Skip sync check when PSM_CONFIG_NOCHECKSYNC is set
In psmprobe(), we set the initial `syncmask` to the vendor default value
if the `PSM_CONFIG_NOCHECKSYNC` bit is unset. However, we currently only
set it for the Elantech touchpad later in psmattach(), thus `syncmask`
is always configured.

Now, we check `PSM_CONFIG_NOCHECKSYNC` and skip sync check if it is set.
This fixes Elantech touchpad support for units which have `hascrc` set.

To clarify that, when we log the `syncmask` and `syncbits` fields, also
mention if they are actually used.

Finally, when we set `PSM_CONFIG_NOCHECKSYNC`, clear `PSM_NEED_SYNCBITS`
flag.

PR:		225338
MFC after:	1 week
2018-01-20 11:02:18 +00:00
..