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-rw-r--r--target/linux/lantiq/patches-3.6/0013-Document-devicetree-add-OF-documents-for-lantiq-falc.patch108
1 files changed, 108 insertions, 0 deletions
diff --git a/target/linux/lantiq/patches-3.6/0013-Document-devicetree-add-OF-documents-for-lantiq-falc.patch b/target/linux/lantiq/patches-3.6/0013-Document-devicetree-add-OF-documents-for-lantiq-falc.patch
new file mode 100644
index 0000000000..28fd21276c
--- /dev/null
+++ b/target/linux/lantiq/patches-3.6/0013-Document-devicetree-add-OF-documents-for-lantiq-falc.patch
@@ -0,0 +1,108 @@
+From 8e004b47b7645fe8ebe1bb81f75cd8f16650de68 Mon Sep 17 00:00:00 2001
+From: John Crispin <blogic@openwrt.org>
+Date: Sun, 22 Jul 2012 09:23:50 +0200
+Subject: [PATCH 13/15] Document: devicetree: add OF documents for lantiq
+ falcon pinctrl
+
+Signed-off-by: John Crispin <blogic@openwrt.org>
+Signed-off-by: Thomas Langer <thomas.langer@lantiq.com>
+Acked-by: Linus Walleij <linus.walleij@linaro.org>
+Cc: devicetree-discuss@lists.ozlabs.org
+Cc: linux-kernel@vger.kernel.org
+---
+ .../bindings/pinctrl/lantiq,falcon-pinumx.txt | 83 ++++++++++++++++++++
+ 1 file changed, 83 insertions(+)
+ create mode 100644 Documentation/devicetree/bindings/pinctrl/lantiq,falcon-pinumx.txt
+
+diff --git a/Documentation/devicetree/bindings/pinctrl/lantiq,falcon-pinumx.txt b/Documentation/devicetree/bindings/pinctrl/lantiq,falcon-pinumx.txt
+new file mode 100644
+index 0000000..daa7689
+--- /dev/null
++++ b/Documentation/devicetree/bindings/pinctrl/lantiq,falcon-pinumx.txt
+@@ -0,0 +1,83 @@
++Lantiq FALCON pinmux controller
++
++Required properties:
++- compatible: "lantiq,pinctrl-falcon"
++- reg: Should contain the physical address and length of the gpio/pinmux
++ register range
++
++Please refer to pinctrl-bindings.txt in this directory for details of the
++common pinctrl bindings used by client devices, including the meaning of the
++phrase "pin configuration node".
++
++Lantiq's pin configuration nodes act as a container for an abitrary number of
++subnodes. Each of these subnodes represents some desired configuration for a
++pin, a group, or a list of pins or groups. This configuration can include the
++mux function to select on those group(s), and two pin configuration parameters:
++pull-up and open-drain
++
++The name of each subnode is not important as long as it is unique; all subnodes
++should be enumerated and processed purely based on their content.
++
++Each subnode only affects those parameters that are explicitly listed. In
++other words, a subnode that lists a mux function but no pin configuration
++parameters implies no information about any pin configuration parameters.
++Similarly, a pin subnode that describes a pullup parameter implies no
++information about e.g. the mux function.
++
++We support 2 types of nodes.
++
++Definition of mux function groups:
++
++Required subnode-properties:
++- lantiq,groups : An array of strings. Each string contains the name of a group.
++ Valid values for these names are listed below.
++- lantiq,function: A string containing the name of the function to mux to the
++ group. Valid values for function names are listed below.
++
++Valid values for group and function names:
++
++ mux groups:
++ por, ntr, ntr8k, hrst, mdio, bootled, asc0, spi, spi cs0, spi cs1, i2c,
++ jtag, slic, pcm, asc1
++
++ functions:
++ rst, ntr, mdio, led, asc, spi, i2c, jtag, slic, pcm
++
++
++Definition of pin configurations:
++
++Required subnode-properties:
++- lantiq,pins : An array of strings. Each string contains the name of a pin.
++ Valid values for these names are listed below.
++
++Optional subnode-properties:
++- lantiq,pull: Integer, representing the pull-down/up to apply to the pin.
++ 0: none, 1: down
++- lantiq,drive-current: Boolean, enables drive-current
++- lantiq,slew-rate: Boolean, enables slew-rate
++
++Example:
++ pinmux0 {
++ compatible = "lantiq,pinctrl-falcon";
++ pinctrl-names = "default";
++ pinctrl-0 = <&state_default>;
++
++ state_default: pinmux {
++ asc0 {
++ lantiq,groups = "asc0";
++ lantiq,function = "asc";
++ };
++ ntr {
++ lantiq,groups = "ntr8k";
++ lantiq,function = "ntr";
++ };
++ i2c {
++ lantiq,groups = "i2c";
++ lantiq,function = "i2c";
++ };
++ hrst {
++ lantiq,groups = "hrst";
++ lantiq,function = "rst";
++ };
++ };
++ };
+--
+1.7.10.4
+