ARM: dt: tegra trimslice: add RTC I2C device

According to the device's datasheet, it can support an interrupt too.
However, the existing board file doesn't specify an interrupt, and I
don't have the schematics, so I can't add an interrupts property. The
current Linux driver doesn't support anyway.

Signed-off-by: Stephen Warren <swarren@nvidia.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/tegra-trimslice.dts b/arch/arm/boot/dts/tegra-trimslice.dts
index 98efd5b0d7f9..3fe91a70bc2f 100644
--- a/arch/arm/boot/dts/tegra-trimslice.dts
+++ b/arch/arm/boot/dts/tegra-trimslice.dts
@@ -250,6 +250,11 @@
 
         i2c@7000c500 {
                 clock-frequency = <400000>;
+
+                rtc@56 {
+                        compatible = "emmicro,em3027";
+                        reg = <0x56>;
+                };
         };
 
         i2c@7000d000 {