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-rw-r--r--Documentation/devicetree/bindings/rtc/nvidia,tegra20-rtc.txt4
1 files changed, 3 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/rtc/nvidia,tegra20-rtc.txt b/Documentation/devicetree/bindings/rtc/nvidia,tegra20-rtc.txt
index 652d1ff2e8be..b7d98ed3e098 100644
--- a/Documentation/devicetree/bindings/rtc/nvidia,tegra20-rtc.txt
+++ b/Documentation/devicetree/bindings/rtc/nvidia,tegra20-rtc.txt
@@ -6,7 +6,9 @@ state.
Required properties:
-- compatible : should be "nvidia,tegra20-rtc".
+- compatible : For Tegra20, must contain "nvidia,tegra20-rtc". Otherwise,
+ must contain '"nvidia,<chip>-rtc", "nvidia,tegra20-rtc"', where <chip>
+ can be tegra30, tegra114, tegra124, or tegra132.
- reg : Specifies base physical address and size of the registers.
- interrupts : A single interrupt specifier.
- clocks : Must contain one entry, for the module clock.