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ARM: dts: Disable I2C controllers by default on Exynos5250

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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>
This commit is contained in:
Mark Brown 2013-12-21 08:33:23 +09:00 committed by Kukjin Kim
parent fae93f7cdd
commit 6ad8ebffde
4 changed files with 31 additions and 48 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
arch/arm/boot/dts/cros5250-common.dtsi
View file

@ -30,6 +30,7 @@ i2c2_bus: i2c2-bus {
};
i2c@12C60000 {
status = "okay";
samsung,i2c-sda-delay = <100>;
samsung,i2c-max-bus-freq = <378000>;
@ -173,6 +174,7 @@ buck8_reg: BUCK8 {
};
i2c@12C70000 {
status = "okay";
samsung,i2c-sda-delay = <100>;
samsung,i2c-max-bus-freq = <378000>;
@ -186,6 +188,7 @@ trackpad {
};
i2c@12C80000 {
status = "okay";
samsung,i2c-sda-delay = <100>;
samsung,i2c-max-bus-freq = <66000>;
@ -196,30 +199,31 @@ hdmiddc@50 {
};
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>;

32
arch/arm/boot/dts/exynos5250-arndale.dts
View file

@ -34,6 +34,7 @@ i2c@12C60000 {
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 @@ buck9_reg: BUCK9 {
};
};
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 @@ hdmiddc@50 {
};
i2c@12C90000 {
status = "okay";
wm1811a@1a {
compatible = "wlf,wm1811";
reg = <0x1a>;
@ -355,23 +357,9 @@ wm1811a@1a {
};
};
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 @@ hdmiphy@38 {
};
};
i2c@121D0000 {
status = "disabled";
};
mmc_0: mmc@12200000 {
status = "okay";
num-slots = <1>;

25
arch/arm/boot/dts/exynos5250-smdk5250.dts
View file

@ -30,6 +30,7 @@ chosen {
i2c@12C60000 {
samsung,i2c-sda-delay = <100>;
samsung,i2c-max-bus-freq = <20000>;
status = "okay";
eeprom@50 {
compatible = "samsung,s524ad0xd1";
@ -64,6 +65,7 @@ spkvdd: fixed-regulator@2 {
i2c@12C70000 {
samsung,i2c-sda-delay = <100>;
samsung,i2c-max-bus-freq = <20000>;
status = "okay";
eeprom@51 {
compatible = "samsung,s524ad0xd1";
@ -92,6 +94,7 @@ i2c@121D0000 {
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 @@ sata@122F0000 {
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 @@ hdmiddc@50 {
};
};
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";

10
arch/arm/boot/dts/exynos5250.dtsi
View file

@ -244,6 +244,7 @@ i2c_0: i2c@12C60000 {
clock-names = "i2c";
pinctrl-names = "default";
pinctrl-0 = <&i2c0_bus>;
status = "disabled";
};
i2c_1: i2c@12C70000 {
@ -256,6 +257,7 @@ i2c_1: i2c@12C70000 {
clock-names = "i2c";
pinctrl-names = "default";
pinctrl-0 = <&i2c1_bus>;
status = "disabled";
};
i2c_2: i2c@12C80000 {
@ -268,6 +270,7 @@ i2c_2: i2c@12C80000 {
clock-names = "i2c";
pinctrl-names = "default";
pinctrl-0 = <&i2c2_bus>;
status = "disabled";
};
i2c_3: i2c@12C90000 {
@ -280,6 +283,7 @@ i2c_3: i2c@12C90000 {
clock-names = "i2c";
pinctrl-names = "default";
pinctrl-0 = <&i2c3_bus>;
status = "disabled";
};
i2c_4: i2c@12CA0000 {
@ -292,6 +296,7 @@ i2c_4: i2c@12CA0000 {
clock-names = "i2c";
pinctrl-names = "default";
pinctrl-0 = <&i2c4_bus>;
status = "disabled";
};
i2c_5: i2c@12CB0000 {
@ -304,6 +309,7 @@ i2c_5: i2c@12CB0000 {
clock-names = "i2c";
pinctrl-names = "default";
pinctrl-0 = <&i2c5_bus>;
status = "disabled";
};
i2c_6: i2c@12CC0000 {
@ -316,6 +322,7 @@ i2c_6: i2c@12CC0000 {
clock-names = "i2c";
pinctrl-names = "default";
pinctrl-0 = <&i2c6_bus>;
status = "disabled";
};
i2c_7: i2c@12CD0000 {
@ -328,6 +335,7 @@ i2c_7: i2c@12CD0000 {
clock-names = "i2c";
pinctrl-names = "default";
pinctrl-0 = <&i2c7_bus>;
status = "disabled";
};
i2c_8: i2c@12CE0000 {
@ -338,6 +346,7 @@ i2c_8: i2c@12CE0000 {
#size-cells = <0>;
clocks = <&clock 302>;
clock-names = "i2c";
status = "disabled";
};
i2c@121D0000 {
@ -347,6 +356,7 @@ i2c@121D0000 {
#size-cells = <0>;
clocks = <&clock 288>;
clock-names = "i2c";
status = "disabled";
};
spi_0: spi@12d20000 {