The value of the register is changed after the task running. A debugfs
file node is added to help users to check the change of register values.
Signed-off-by: NLongfang Liu <liulongfang@huawei.com>
Signed-off-by: NKai Ye <yekai13@huawei.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>