ARM: cfa10036: add one wire bitbanging to the cfa10049
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
diff --git a/arch/arm/boot/dts/imx28-cfa10049.dts b/arch/arm/boot/dts/imx28-cfa10049.dts
index 7d6e1f8..db18cd4 100644
--- a/arch/arm/boot/dts/imx28-cfa10049.dts
+++ b/arch/arm/boot/dts/imx28-cfa10049.dts
@@ -30,7 +30,6 @@
reg = <0>;
fsl,pinmux-ids = <
0x0073 /* MX28_PAD_GPMI_D7__GPIO_0_7 */
- 0x1153 /* MX28_PAD_LCD_D22__GPIO_1_21 */
0x1163 /* MX28_PAD_LCD_D22__GPIO_1_22 */
0x1173 /* MX28_PAD_LCD_D22__GPIO_1_23 */
0x2153 /* MX28_PAD_SSP2_D5__GPIO_2_21 */
@@ -120,6 +119,16 @@
fsl,voltage = <1>;
fsl,pull-up = <0>;
};
+
+ w1_gpio_pins: w1-gpio@0 {
+ reg = <0>;
+ fsl,pinmux-ids = <
+ 0x1153 /* MX28_PAD_LCD_D21__GPIO_1_21 */
+ >;
+ fsl,drive-strength = <1>;
+ fsl,voltage = <1>;
+ fsl,pull-up = <0>; /* 0 will enable the keeper */
+ };
};
lcdif@80030000 {
@@ -329,5 +338,14 @@
pwms = <&pwm 3 5000000>;
brightness-levels = <0 4 8 16 32 64 128 255>;
default-brightness-level = <6>;
+
+ };
+
+ onewire@0 {
+ compatible = "w1-gpio";
+ pinctrl-names = "default";
+ pinctrl-0 = <&w1_gpio_pins>;
+ status = "okay";
+ gpios = <&gpio1 21 0>;
};
};