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USB: serial: f81534: add output pin control
authorJi-Ze Hong (Peter Hong) <hpeter@gmail.com>
Thu, 11 Jan 2018 06:47:17 +0000 (14:47 +0800)
committerJohan Hovold <johan@kernel.org>
Thu, 11 Jan 2018 10:00:24 +0000 (11:00 +0100)
commit138651e1186bef33d0d330ca735d85784ee6535b
tree8d3507a6419890a8d04d728f717569c64ad13b77tree | snapshot
parentee0309b46a20304d30c0e0447a2da2a94115731ccommit | diff
USB: serial: f81534: add output pin control

The F81532/534 had 3 output pin (M0/SD, M1, M2) with open-drain mode to
control transceiver. We'll read it from internal Flash with address
0x2f05~0x2f08 for 4 ports. The value is range from 0 to 7. The M0/SD is
MSB of this value. For a examples, If read value is 6, we'll write M0/SD,
M1, M2 as 1, 1, 0.

Signed-off-by: Ji-Ze Hong (Peter Hong) <hpeter+linux_kernel@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
drivers/usb/serial/f81534.c diff | blob | history
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