1 files changed, 25 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/exynos5250-snow.dts b/arch/arm/boot/dts/exynos5250-snow.dts
index 581ffae27e13..fa85f58553f5 100644
--- a/arch/arm/boot/dts/exynos5250-snow.dts
+++ b/arch/arm/boot/dts/exynos5250-snow.dts
@@ -16,6 +16,10 @@
         model = "Google Snow";
         compatible = "google,snow", "samsung,exynos5250";
 
+        aliases {
+                i2c104 = &i2c_104;
+        };
+
         pinctrl@11400000 {
                 sd3_clk: sd3-clk {
                         samsung,pin-drv = <0>;
@@ -44,6 +48,27 @@
                 };
         };
 
+        i2c-arbitrator {
+                compatible = "i2c-arb-gpio-challenge";
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                i2c-parent = <&{/i2c@12CA0000}>;
+
+                our-claim-gpio = <&gpf0 3 1>;
+                their-claim-gpios = <&gpe0 4 1>;
+                slew-delay-us = <10>;
+                wait-retry-us = <3000>;
+                wait-free-us = <50000>;
+
+                /* Use ID 104 as a hint that we're on physical bus 4 */
+                i2c_104: i2c@0 {
+                        reg = <0>;
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+                };
+        };
+
         /*
          * On Snow we've got SIP WiFi and so can keep drive strengths low to
          * reduce EMI.