summaryrefslogtreecommitdiff
path: root/Documentation/devicetree
diff options
context:
space:
mode:
authorGrant Likely <grant.likely@secretlab.ca>2011-10-05 20:52:27 +0400
committerGrant Likely <grant.likely@secretlab.ca>2011-10-05 20:52:27 +0400
commit9514a56753a8d379db36bed424588e1842f2bfcc (patch)
treed13cdfcd9473f521c3b108770dba57e81e557a30 /Documentation/devicetree
parent4cd7f7a31178ff8a15ad2bc1258b9b2bf2cf51a4 (diff)
parent6add6967a4a57e2156b96e62f28bcbe1901d16c1 (diff)
downloadlinux-9514a56753a8d379db36bed424588e1842f2bfcc.tar.xz
Merge branch 'for-grant' of git://git.jdl.com/software/linux-3.0 into devicetree/next
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r--Documentation/devicetree/bindings/gpio/pl061-gpio.txt10
-rw-r--r--Documentation/devicetree/bindings/spi/spi_pl022.txt12
2 files changed, 22 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/gpio/pl061-gpio.txt b/Documentation/devicetree/bindings/gpio/pl061-gpio.txt
new file mode 100644
index 000000000000..a2c416bcbccc
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/pl061-gpio.txt
@@ -0,0 +1,10 @@
+ARM PL061 GPIO controller
+
+Required properties:
+- compatible : "arm,pl061", "arm,primecell"
+- #gpio-cells : Should be two. The first cell is the pin number and the
+ second cell is used to specify optional parameters:
+ - bit 0 specifies polarity (0 for normal, 1 for inverted)
+- gpio-controller : Marks the device node as a GPIO controller.
+- interrupts : Interrupt mapping for GPIO IRQ.
+
diff --git a/Documentation/devicetree/bindings/spi/spi_pl022.txt b/Documentation/devicetree/bindings/spi/spi_pl022.txt
new file mode 100644
index 000000000000..306ec3ff3c0e
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/spi_pl022.txt
@@ -0,0 +1,12 @@
+ARM PL022 SPI controller
+
+Required properties:
+- compatible : "arm,pl022", "arm,primecell"
+- reg : Offset and length of the register set for the device
+- interrupts : Should contain SPI controller interrupt
+
+Optional properties:
+- cs-gpios : should specify GPIOs used for chipselects.
+ The gpios will be referred to as reg = <index> in the SPI child nodes.
+ If unspecified, a single SPI device without a chip select can be used.
+