ARM: dts: Disable I2C controllers by default on Exynos5250

Ensure that unused I2C controllers are not activated, causing problems due
to inappropriate pinmuxing or similar, by marking the controllers as
disabled by default and requiring boards to explicitly enable those that
are in use.

Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

4 files changed, 31 insertions, 48 deletions

diff --git a/arch/arm/boot/dts/cros5250-common.dtsi b/arch/arm/boot/dts/cros5250-common.dtsi
index ddaa61a38018..a826f0f727c8 100644
--- a/arch/arm/boot/dts/cros5250-common.dtsi
+++ b/arch/arm/boot/dts/cros5250-common.dtsi
@@ -30,6 +30,7 @@
         };
 
         i2c@12C60000 {
+                status = "okay";
                 samsung,i2c-sda-delay = <100>;
                 samsung,i2c-max-bus-freq = <378000>;
 
@@ -173,6 +174,7 @@
         };
 
         i2c@12C70000 {
+                status = "okay";
                 samsung,i2c-sda-delay = <100>;
                 samsung,i2c-max-bus-freq = <378000>;
 
@@ -186,6 +188,7 @@
         };
 
         i2c@12C80000 {
+                status = "okay";
                 samsung,i2c-sda-delay = <100>;
                 samsung,i2c-max-bus-freq = <66000>;
 
@@ -196,30 +199,31 @@
         };
 
         i2c@12C90000 {
+                status = "okay";
                 samsung,i2c-sda-delay = <100>;
                 samsung,i2c-max-bus-freq = <66000>;
         };
 
         i2c@12CA0000 {
+                status = "okay";
                 samsung,i2c-sda-delay = <100>;
                 samsung,i2c-max-bus-freq = <66000>;
         };
 
         i2c@12CB0000 {
+                status = "okay";
                 samsung,i2c-sda-delay = <100>;
                 samsung,i2c-max-bus-freq = <66000>;
         };
 
-        i2c@12CC0000 {
-                status = "disabled";
-        };
-
         i2c@12CD0000 {
+                status = "okay";
                 samsung,i2c-sda-delay = <100>;
                 samsung,i2c-max-bus-freq = <66000>;
         };
 
         i2c@12CE0000 {
+                status = "okay";
                 samsung,i2c-sda-delay = <100>;
                 samsung,i2c-max-bus-freq = <378000>;
 
diff --git a/arch/arm/boot/dts/exynos5250-arndale.dts b/arch/arm/boot/dts/exynos5250-arndale.dts
index a1b88c959126..b42e658876e5 100644
--- a/arch/arm/boot/dts/exynos5250-arndale.dts
+++ b/arch/arm/boot/dts/exynos5250-arndale.dts
@@ -34,6 +34,7 @@
                 samsung,i2c-sda-delay = <100>;
                 samsung,i2c-max-bus-freq = <20000>;
                 samsung,i2c-slave-addr = <0x66>;
+                status = "okay";
 
                 s5m8767_pmic@66 {
                         compatible = "samsung,s5m8767-pmic";
@@ -321,11 +322,9 @@
                 };
         };
 
-        i2c@12C70000 {
-                status = "disabled";
-        };
-
         i2c@12C80000 {
+                status = "okay";
+
                 samsung,i2c-sda-delay = <100>;
                 samsung,i2c-max-bus-freq = <66000>;
                 samsung,i2c-slave-addr = <0x50>;
@@ -337,7 +336,10 @@
         };
 
         i2c@12C90000 {
+                status = "okay";
+
                 wm1811a@1a {
+
                         compatible = "wlf,wm1811";
                         reg = <0x1a>;
 
@@ -355,23 +357,9 @@
                 };
         };
 
-        i2c@12CA0000 {
-                status = "disabled";
-        };
-
-        i2c@12CB0000 {
-                status = "disabled";
-        };
-
-        i2c@12CC0000 {
-                status = "disabled";
-        };
-
-        i2c@12CD0000 {
-                status = "disabled";
-        };
-
         i2c@12CE0000 {
+                status = "okay";
+
                 samsung,i2c-sda-delay = <100>;
                 samsung,i2c-max-bus-freq = <66000>;
                 samsung,i2c-slave-addr = <0x38>;
@@ -382,10 +370,6 @@
                 };
         };
 
-        i2c@121D0000 {
-                status = "disabled";
-        };
-
         mmc_0: mmc@12200000 {
                 status = "okay";
                 num-slots = <1>;
diff --git a/arch/arm/boot/dts/exynos5250-smdk5250.dts b/arch/arm/boot/dts/exynos5250-smdk5250.dts
index 66be8270d186..3e69837c435c 100644
--- a/arch/arm/boot/dts/exynos5250-smdk5250.dts
+++ b/arch/arm/boot/dts/exynos5250-smdk5250.dts
@@ -30,6 +30,7 @@
         i2c@12C60000 {
                 samsung,i2c-sda-delay = <100>;
                 samsung,i2c-max-bus-freq = <20000>;
+                status = "okay";
 
                 eeprom@50 {
                         compatible = "samsung,s524ad0xd1";
@@ -64,6 +65,7 @@
         i2c@12C70000 {
                 samsung,i2c-sda-delay = <100>;
                 samsung,i2c-max-bus-freq = <20000>;
+                status = "okay";
 
                 eeprom@51 {
                         compatible = "samsung,s524ad0xd1";
@@ -92,6 +94,7 @@
                 samsung,i2c-sda-delay = <100>;
                 samsung,i2c-max-bus-freq = <40000>;
                 samsung,i2c-slave-addr = <0x38>;
+                status = "okay";
 
                 sata-phy {
                         compatible = "samsung,sata-phy";
@@ -106,6 +109,7 @@
         i2c@12C80000 {
                 samsung,i2c-sda-delay = <100>;
                 samsung,i2c-max-bus-freq = <66000>;
+                status = "okay";
 
                 hdmiddc@50 {
                         compatible = "samsung,exynos4210-hdmiddc";
@@ -113,29 +117,10 @@
                 };
         };
 
-        i2c@12C90000 {
-                status = "disabled";
-        };
-
-        i2c@12CA0000 {
-                status = "disabled";
-        };
-
-        i2c@12CB0000 {
-                status = "disabled";
-        };
-
-        i2c@12CC0000 {
-                status = "disabled";
-        };
-
-        i2c@12CD0000 {
-                status = "disabled";
-        };
-
         i2c@12CE0000 {
                 samsung,i2c-sda-delay = <100>;
                 samsung,i2c-max-bus-freq = <66000>;
+                status = "okay";
 
                 hdmiphy@38 {
                         compatible = "samsung,exynos4212-hdmiphy";
diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index 14c4f63d05da..c341e55205cd 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -244,6 +244,7 @@
                 clock-names = "i2c";
                 pinctrl-names = "default";
                 pinctrl-0 = <&i2c0_bus>;
+                status = "disabled";
         };
 
         i2c_1: i2c@12C70000 {
@@ -256,6 +257,7 @@
                 clock-names = "i2c";
                 pinctrl-names = "default";
                 pinctrl-0 = <&i2c1_bus>;
+                status = "disabled";
         };
 
         i2c_2: i2c@12C80000 {
@@ -268,6 +270,7 @@
                 clock-names = "i2c";
                 pinctrl-names = "default";
                 pinctrl-0 = <&i2c2_bus>;
+                status = "disabled";
         };
 
         i2c_3: i2c@12C90000 {
@@ -280,6 +283,7 @@
                 clock-names = "i2c";
                 pinctrl-names = "default";
                 pinctrl-0 = <&i2c3_bus>;
+                status = "disabled";
         };
 
         i2c_4: i2c@12CA0000 {
@@ -292,6 +296,7 @@
                 clock-names = "i2c";
                 pinctrl-names = "default";
                 pinctrl-0 = <&i2c4_bus>;
+                status = "disabled";
         };
 
         i2c_5: i2c@12CB0000 {
@@ -304,6 +309,7 @@
                 clock-names = "i2c";
                 pinctrl-names = "default";
                 pinctrl-0 = <&i2c5_bus>;
+                status = "disabled";
         };
 
         i2c_6: i2c@12CC0000 {
@@ -316,6 +322,7 @@
                 clock-names = "i2c";
                 pinctrl-names = "default";
                 pinctrl-0 = <&i2c6_bus>;
+                status = "disabled";
         };
 
         i2c_7: i2c@12CD0000 {
@@ -328,6 +335,7 @@
                 clock-names = "i2c";
                 pinctrl-names = "default";
                 pinctrl-0 = <&i2c7_bus>;
+                status = "disabled";
         };
 
         i2c_8: i2c@12CE0000 {
@@ -338,6 +346,7 @@
                 #size-cells = <0>;
                 clocks = <&clock 302>;
                 clock-names = "i2c";
+                status = "disabled";
         };
 
         i2c@121D0000 {
@@ -347,6 +356,7 @@
                 #size-cells = <0>;
                 clocks = <&clock 288>;
                 clock-names = "i2c";
+                status = "disabled";
         };
 
         spi_0: spi@12d20000 {