summaryrefslogtreecommitdiff
path: root/Documentation/pinctrl.txt
diff options
context:
space:
mode:
authorStephen Warren <swarren@nvidia.com>2012-03-03 00:05:46 +0400
committerLinus Walleij <linus.walleij@linaro.org>2012-03-05 14:21:46 +0400
commit0e3db173e2b9fd3b82246516e72c17763eb5f98d (patch)
treece00c29c56332c925766f7f793d388b9670d802f /Documentation/pinctrl.txt
parent7ecdb16fe63e5b356335ebdc236adfb48cef31e1 (diff)
downloadlinux-0e3db173e2b9fd3b82246516e72c17763eb5f98d.tar.xz
pinctrl: add usecount to pins for muxing
Multiple mapping table entries could reference the same pin, and hence "own" it. This would be unusual now that pinctrl_get() represents a single state for a client device, but in the future when it represents all known states for a device, this is quite likely. Implement reference counting for pin ownership to handle this. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Dong Aisheng <dong.aisheng@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'Documentation/pinctrl.txt')
0 files changed, 0 insertions, 0 deletions