summaryrefslogtreecommitdiffstats
path: root/Documentation
diff options
context:
space:
mode:
authorStephen Warren <swarren@nvidia.com>2012-01-19 08:16:35 +0000
committerOlof Johansson <olof@lixom.net>2012-02-06 18:25:00 -0800
commit3391811c4294da42e412ec5f83a251caf05869a4 (patch)
treeee56741b55aa4f24824e5c75c3aced6254e234fd /Documentation
parent6f74dc9bc8de41f3de474a7269a70921e773c40f (diff)
downloadop-kernel-dev-3391811c4294da42e412ec5f83a251caf05869a4.zip
op-kernel-dev-3391811c4294da42e412ec5f83a251caf05869a4.tar.gz
gpio: tegra: Parameterize the number of banks
Tegra20's GPIO controller has 7 banks, and Tegra30's controller has 8 banks. Allow the number of banks to be configured at run-time by the device tree. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/gpio/gpio_nvidia.txt8
1 files changed, 5 insertions, 3 deletions
diff --git a/Documentation/devicetree/bindings/gpio/gpio_nvidia.txt b/Documentation/devicetree/bindings/gpio/gpio_nvidia.txt
index d114e199..023c952 100644
--- a/Documentation/devicetree/bindings/gpio/gpio_nvidia.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio_nvidia.txt
@@ -1,9 +1,11 @@
-NVIDIA Tegra 2 GPIO controller
+NVIDIA Tegra GPIO controller
Required properties:
-- compatible : "nvidia,tegra20-gpio"
+- compatible : "nvidia,tegra<chip>-gpio"
- reg : Physical base address and length of the controller's registers.
-- interrupts : The interrupt outputs from the controller.
+- interrupts : The interrupt outputs from the controller. For Tegra20,
+ there should be 7 interrupts specified, and for Tegra30, there should
+ be 8 interrupts specified.
- #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)
OpenPOWER on IntegriCloud