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pinctrl: Document "function" + "pins" pinmux binding

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Currently the "function" + "groups" combination is the only documented
format for pinmux nodes, although many drivers use "function" + "pins".
Update the generic pinctrl binding to include the "function" + "pins"
combination as well.

Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Andrew Bresticker 2015-03-30 16:16:54 -07:00 committed by Linus Walleij
parent 7981c0015a
commit cec656501f
1 changed files with 7 additions and 0 deletions
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7
Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
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@ -133,6 +133,9 @@ pin multiplexing nodes:
function - the mux function to select function - the mux function to select
groups - the list of groups to select with this function groups - the list of groups to select with this function
(either this or "pins" must be specified)
pins - the list of pins to select with this function (either
this or "groups" must be specified)
Example: Example:
@ -148,6 +151,10 @@ state_1_node_a {
groups = "spi0pins"; groups = "spi0pins";
}; };
}; };
state_2_node_a {
function = "i2c0";
pins = "mfio29", "mfio30";
};
== Generic pin configuration node content == == Generic pin configuration node content ==