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(parent: c03e1b8) | patch
sc16is7xx: always write state when configuring GPIO as an output
authorFrancois Berder <Francois.Berder@imgtec.com>
Tue, 25 Oct 2016 12:24:13 +0000 (13:24 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 27 Oct 2016 14:42:31 +0000 (16:42 +0200)
commit03842c17397e14cb8bb1adc2015f5dce6c733ffe
treeda2b5574afe85eac58b3d82ed73fac98b8ead2datree | snapshot (tar.gz zip)
parentc03e1b8703a4a0c8bac7f6b65d8fcb539ec62d82commit | diff
sc16is7xx: always write state when configuring GPIO as an output

The regmap_update first reads the IOState register and then triggers
a write if needed. However, GPIOS might be configured as an input so
 the read to IOState on this GPIO is the current state which might
be random.

Signed-off-by: Francois Berder <Francois.Berder@imgtec.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/sc16is7xx.c diff | blob | blame | history