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pinctrl: specify bindings for pins and groups

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Pin configurations can be per-pin or per-group. Make sure that the
per-group case is covered by the bindings.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2014-10-02 09:41:46 +02:00
parent 8f1774a2a9
commit 2cdef8f4e1
1 changed files with 10 additions and 1 deletions
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11
Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
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@ -157,7 +157,12 @@ structure of the DT nodes that contain these properties.
Supported generic properties are:
pins - the list of pins that properties in the node
apply to
apply to (either this or "group" has to be
specified)
group - the group to apply the properties to, if the driver
supports configuration of whole groups rather than
individual pins (either this or "pins" has to be
specified)
bias-disable - disable any pin bias
bias-high-impedance - high impedance mode ("third-state", "floating")
bias-bus-hold - latch weakly
@ -190,6 +195,10 @@ state_1_node_a {
pins = "GPIO1_AJ3", "GPIO3_AH3"; /* RTS+TXD */
output-high;
};
state_2_node_a {
group = "foo-group";
bias-pull-up;
};
Some of the generic properties take arguments. For those that do, the
arguments are described below.