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authorLinus Walleij <linus.walleij@linaro.org>2014-10-02 11:41:46 +0400
committerLinus Walleij <linus.walleij@linaro.org>2014-10-02 11:41:46 +0400
commit2cdef8f4e1ac28adc81326758a7767c18479a95d (patch)
treeca4c049a19e107b14abd50ca151694d6fc444170 /Documentation
parent8f1774a2a97135db35c5f42531a148135158705a (diff)
downloadlinux-2cdef8f4e1ac28adc81326758a7767c18479a95d.tar.xz
pinctrl: specify bindings for pins and groups
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>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt11
1 files changed, 10 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
index 4f5a0c3af8b9..98eb94d91a1c 100644
--- a/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
+++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
@@ -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.