---

yaml --- r: 374135 b: refs/heads/master c: 97a4a1b h: refs/heads/master i: 374133: c403989 374131: 88ceb0f 374127: c557aa8 v: v3
git-mirror · Apr 28, 2013 · 9d4a624 · 9d4a624
1 parent 0486d05
commit 9d4a624
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Showing 3 changed files with 28 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 6cae0fafe33254c52f19dbf90854cbf22b82fc96
+refs/heads/master: 97a4a1ba0eb0c8fd20cabf8a3ca857de9658ee21
diff --git a/trunk/arch/arm/boot/dts/cros5250-common.dtsi b/trunk/arch/arm/boot/dts/cros5250-common.dtsi
@@ -193,7 +193,8 @@
 	};
 
 	i2c@12CA0000 {
-		status = "disabled";
+		samsung,i2c-sda-delay = <100>;
+		samsung,i2c-max-bus-freq = <66000>;
 	};
 
 	i2c@12CB0000 {

diff --git a/trunk/arch/arm/boot/dts/exynos5250-snow.dts b/trunk/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.