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 7d6e1f87e9519d3124b6a100ebe3cfd99fb048ec..db18cd41727465cc5ffc9d2985a86bd63d0cc44e 100644 (file)
--- 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>;
        };
 };