ARM: tegra: enable PCA9546 on Cardhu

Cardhu has a PCA9546 for I2C bus extension, which connects to 3
cameras. It's required for Tegra V4L2 soc camera driver and camera
sensor drivers.

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

1 files changed, 7 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/tegra30-cardhu.dtsi b/arch/arm/boot/dts/tegra30-cardhu.dtsi
index 9104224124ee..004002c8c8a5 100644
--- a/arch/arm/boot/dts/tegra30-cardhu.dtsi
+++ b/arch/arm/boot/dts/tegra30-cardhu.dtsi
@@ -187,6 +187,13 @@
                         interrupt-parent = <&gpio>;
                         interrupts = <TEGRA_GPIO(L, 0) IRQ_TYPE_LEVEL_HIGH>;
                 };
+
+                i2cmux@70 {
+                        compatible = "nxp,pca9546";
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+                        reg = <0x70>;
+                };
         };
 
         i2c@7000c700 {