tree 8b98431b0debc428c33bfde35fe310a89fbd63b4
parent b7ce0b5d03f303cba0fff3f9df17f400d4e7a2d8
author Alexander Shiyan <shc_work@mail.ru> 1399535800 +0400
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1403225014 -0700

w1: mxc_w1: Optimize mxc_w1_ds2_touch_bit()

According to the i.MX reference manual, the read/write bit operations
takes from 60 us to 120 us.
This patch optimizes mxc_w1_ds2_touch_bit() function to use proper
value for such delay. Nevertheless, a small margin for the timeout has
been added for the case if clock frequency is inaccurate.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>