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author | Stephen Warren <swarren@nvidia.com> | 2012-03-02 20:05:47 (GMT) |
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committer | Linus Walleij <linus.walleij@linaro.org> | 2012-03-05 10:22:59 (GMT) |
commit | 6e5e959dde0d92d177f035652aeaa77f9330c9c6 (patch) | |
tree | c2d874df6a1c591b558a17591a1c8fbc2ba7a1e1 /drivers/pinctrl/pinmux.h | |
parent | 0e3db173e2b9fd3b82246516e72c17763eb5f98d (diff) | |
download | linux-6e5e959dde0d92d177f035652aeaa77f9330c9c6.tar.xz |
pinctrl: API changes to support multiple states per device
The API model is changed from:
p = pinctrl_get(dev, "state1");
pinctrl_enable(p);
...
pinctrl_disable(p);
pinctrl_put(p);
p = pinctrl_get(dev, "state2");
pinctrl_enable(p);
...
pinctrl_disable(p);
pinctrl_put(p);
to this:
p = pinctrl_get(dev);
s1 = pinctrl_lookup_state(p, "state1");
s2 = pinctrl_lookup_state(p, "state2");
pinctrl_select_state(p, s1);
...
pinctrl_select_state(p, s2);
...
pinctrl_put(p);
This allows devices to directly transition between states without
disabling the pin controller programming and put()/get()ing the
configuration data each time. This model will also better suit pinconf
programming, which doesn't have a concept of "disable".
The special-case hogging feature of pin controllers is re-written to use
the regular APIs instead of special-case code. Hence, the pinmux-hogs
debugfs file is removed; see the top-level pinctrl-handles files for
equivalent data.
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 'drivers/pinctrl/pinmux.h')
0 files changed, 0 insertions, 0 deletions