aboutsummaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/pinctrl/samsung-pinctrl.txt
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/devicetree/bindings/pinctrl/samsung-pinctrl.txt')
-rw-r--r--Documentation/devicetree/bindings/pinctrl/samsung-pinctrl.txt24
1 files changed, 23 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/pinctrl/samsung-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/samsung-pinctrl.txt
index 2b32783ba821..e82aaf492517 100644
--- a/Documentation/devicetree/bindings/pinctrl/samsung-pinctrl.txt
+++ b/Documentation/devicetree/bindings/pinctrl/samsung-pinctrl.txt
@@ -44,7 +44,11 @@ Required Properties:
- Pin mux/config groups as child nodes: The pin mux (selecting pin function
mode) and pin config (pull up/down, driver strength) settings are represented
as child nodes of the pin-controller node. There should be atleast one
- child node and there is no limit on the count of these child nodes.
+ child node and there is no limit on the count of these child nodes. It is
+ also possible for a child node to consist of several further child nodes
+ to allow grouping multiple pinctrl groups into one. The format of second
+ level child nodes is exactly the same as for first level ones and is
+ described below.
The child node should contain a list of pin(s) on which a particular pin
function selection or pin configuration (or both) have to applied. This
@@ -71,6 +75,7 @@ Required Properties:
"samsung,pins" property of the child node. The following pin configuration
properties are supported.
+ - samsung,pin-val: Initial value of pin output buffer.
- samsung,pin-pud: Pull up/down configuration.
- samsung,pin-drv: Drive strength configuration.
- samsung,pin-pud-pdn: Pull up/down configuration in power down mode.
@@ -249,6 +254,23 @@ Example 1: A pin-controller node with pin groups.
samsung,pin-pud = <3>;
samsung,pin-drv = <0>;
};
+
+ sd4_bus8: sd4-bus-width8 {
+ part-1 {
+ samsung,pins = "gpk0-3", "gpk0-4",
+ "gpk0-5", "gpk0-6";
+ samsung,pin-function = <3>;
+ samsung,pin-pud = <3>;
+ samsung,pin-drv = <3>;
+ };
+ part-2 {
+ samsung,pins = "gpk1-3", "gpk1-4",
+ "gpk1-5", "gpk1-6";
+ samsung,pin-function = <4>;
+ samsung,pin-pud = <4>;
+ samsung,pin-drv = <3>;
+ };
+ };
};
Example 2: A pin-controller node with external wakeup interrupt controller node.