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authorSascha Hauer <s.hauer@pengutronix.de>2020-11-10 14:10:56 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2020-11-10 15:07:14 +0100
commit4b689ab6bccaf4fa65f71644d1ca4c9d8358385a (patch)
treed97fbd8510349db6cfa668ed6353c61ba0e71f9c /dts/Bindings/pinctrl/pinctrl-single.txt
parent9d115d95018b8025f0f35abfb88f78a42e103933 (diff)
parent85f8d17be5cc2708bd5f6414b8012d5b4c6821d2 (diff)
downloadbarebox-4b689ab6bccaf4fa65f71644d1ca4c9d8358385a.tar.gz
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Merge branch 'for-next/dts'
Diffstat (limited to 'dts/Bindings/pinctrl/pinctrl-single.txt')
-rw-r--r--dts/Bindings/pinctrl/pinctrl-single.txt21
1 files changed, 14 insertions, 7 deletions
diff --git a/dts/Bindings/pinctrl/pinctrl-single.txt b/dts/Bindings/pinctrl/pinctrl-single.txt
index e705acd361..f903eb4471 100644
--- a/dts/Bindings/pinctrl/pinctrl-single.txt
+++ b/dts/Bindings/pinctrl/pinctrl-single.txt
@@ -94,16 +94,23 @@ pinctrl-single,bit-per-mux is set), and uses the common pinctrl bindings as
specified in the pinctrl-bindings.txt document in this directory.
The pin configuration nodes for pinctrl-single are specified as pinctrl
-register offset and value pairs using pinctrl-single,pins. Only the bits
-specified in pinctrl-single,function-mask are updated. For example, setting
-a pin for a device could be done with:
+register offset and values using pinctrl-single,pins. Only the bits specified
+in pinctrl-single,function-mask are updated.
+
+When #pinctrl-cells = 1, then setting a pin for a device could be done with:
pinctrl-single,pins = <0xdc 0x118>;
-Where 0xdc is the offset from the pinctrl register base address for the
-device pinctrl register, and 0x118 contains the desired value of the
-pinctrl register. See the device example and static board pins example
-below for more information.
+Where 0xdc is the offset from the pinctrl register base address for the device
+pinctrl register, and 0x118 contains the desired value of the pinctrl register.
+
+When #pinctrl-cells = 2, then setting a pin for a device could be done with:
+
+ pinctrl-single,pins = <0xdc 0x30 0x07>;
+
+Where 0x30 is the pin configuration value and 0x07 is the pin mux mode value.
+These two values are OR'd together to produce the value stored at offset 0xdc.
+See the device example and static board pins example below for more information.
In case when one register changes more than one pin's mux the
pinctrl-single,bits need to be used which takes three parameters: