Input: iqs7222 - report malformed properties

Input: iqs7222 - report malformed properties

[ Upstream commit 404f3b48e65f058d94429e4a1ec16a1f82ff3b2f ]

Nonzero return values of several calls to fwnode_property_read_u32()
are silently ignored, leaving no way to know the properties were not
applied in the event of an error.

Solve this problem by evaluating fwnode_property_read_u32()'s return
value, and reporting an error for any nonzero return value not equal
to -EINVAL which indicates the property was absent altogether.

Fixes: a8b0abcc88cc ("Input: add support for Azoteq IQS7222A/B/C")
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Link: https://lore.kernel.org/r/Y1SRRrpQXvkETjfm@nixie71
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>