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authorLinus Walleij <linus.walleij@linaro.org>2013-06-09 22:17:56 (GMT)
committerLinus Walleij <linus.walleij@linaro.org>2013-08-06 22:59:06 (GMT)
commit66e0c12f9e17a1c97fc358f9e1f5e1dc615e279a (patch)
tree6fdc361e76ad63073cfa63a4f2b5b0723ab771fe /arch/arm/boot/dts/ste-nomadik-stn8815.dtsi
parentad81f0545ef01ea651886dddac4bef6cec930092 (diff)
downloadlinux-66e0c12f9e17a1c97fc358f9e1f5e1dc615e279a.tar.xz
ARM: nomadik: switch to use the Nomadik I2C driver
Instead of using bit-banged I2C, let's use the actual I2C driver in the kernel. Since the I2C block may be communicating with things like the PMIC, we need to select it from the Kconfig just like the bit-banged adapter is selected today. The rest of the configuration for this driver can be done from the device tree. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'arch/arm/boot/dts/ste-nomadik-stn8815.dtsi')
-rw-r--r--arch/arm/boot/dts/ste-nomadik-stn8815.dtsi42
1 files changed, 31 insertions, 11 deletions
diff --git a/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi b/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi
index a3acfa7..9169d30 100644
--- a/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi
+++ b/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi
@@ -140,18 +140,30 @@
};
};
i2c0 {
+ i2c0_default_mux: i2c0_mux {
+ i2c0_default_mux {
+ ste,function = "i2c0";
+ ste,pins = "i2c0_a_1";
+ };
+ };
i2c0_default_mode: i2c0_default {
i2c0_default_cfg {
ste,pins = "GPIO62_D3", "GPIO63_D2";
- ste,input = <1>;
+ ste,input = <0>;
};
};
};
i2c1 {
+ i2c1_default_mux: i2c1_mux {
+ i2c1_default_mux {
+ ste,function = "i2c1";
+ ste,pins = "i2c1_a_1";
+ };
+ };
i2c1_default_mode: i2c1_default {
i2c1_default_cfg {
ste,pins = "GPIO53_L4", "GPIO54_L3";
- ste,input = <1>;
+ ste,input = <0>;
};
};
};
@@ -159,7 +171,7 @@
i2c2_default_mode: i2c2_default {
i2c2_default_cfg {
ste,pins = "GPIO73_C21", "GPIO74_C20";
- ste,input = <1>;
+ ste,input = <0>;
};
};
};
@@ -682,13 +694,17 @@
/* I2C0 connected to the STw4811 power management chip */
i2c0 {
- compatible = "i2c-gpio";
- gpios = <&gpio1 31 0>, /* sda */
- <&gpio1 30 0>; /* scl */
+ compatible = "st,nomadik-i2c", "arm,primecell";
+ reg = <0x101f8000 0x1000>;
+ interrupt-parent = <&vica>;
+ interrupts = <20>;
+ clock-frequency = <100000>;
#address-cells = <1>;
#size-cells = <0>;
+ clocks = <&i2c0clk>, <&pclki2c0>;
+ clock-names = "mclk", "apb_pclk";
pinctrl-names = "default";
- pinctrl-0 = <&i2c0_default_mode>;
+ pinctrl-0 = <&i2c0_default_mux>, <&i2c0_default_mode>;
stw4811@2d {
compatible = "st,stw4811";
@@ -698,13 +714,17 @@
/* I2C1 connected to various sensors */
i2c1 {
- compatible = "i2c-gpio";
- gpios = <&gpio1 22 0>, /* sda */
- <&gpio1 21 0>; /* scl */
+ compatible = "st,nomadik-i2c", "arm,primecell";
+ reg = <0x101f7000 0x1000>;
+ interrupt-parent = <&vica>;
+ interrupts = <21>;
+ clock-frequency = <100000>;
#address-cells = <1>;
#size-cells = <0>;
+ clocks = <&i2c1clk>, <&pclki2c1>;
+ clock-names = "mclk", "apb_pclk";
pinctrl-names = "default";
- pinctrl-0 = <&i2c1_default_mode>;
+ pinctrl-0 = <&i2c1_default_mux>, <&i2c1_default_mode>;
camera@2d {
compatible = "st,camera";