Tegra I2C can use a gpio as an smbus-alert. Document the usage of
the same.
Signed-off-by: Akhil R <akhilrajeev@xxxxxxxxxx>
---
Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.txt | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.txt b/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.txt
index 3f2f990..71ee79b 100644
--- a/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.txt
+++ b/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.txt
@@ -70,6 +70,10 @@ Required properties:
- rx
- tx
+optional properties:
+- smbalert-gpio: Must contain an entry for the gpio to be used as smbus alert.
+ It will be used only if optional smbus-alert property is present.
+
Example:
i2c@7000c000 {
--
2.7.4
