ARM: dts: LogicPD Torpedo: Fix I2C1 pinmux

BugLink: http://bugs.launchpad.net/bugs/1764666

commit 74402055 upstream.

The pinmuxing was missing for I2C1 which was causing intermittent issues
with the PMIC which is connected to I2C1.  The bootloader did not quite
configure the I2C1 either, so when running at 2.6MHz, it was generating
errors at time.

This correctly sets the I2C1 pinmuxing so it can operate at 2.6MHz

Fixes: 687c2767 ("ARM: dts: Add minimal support for LogicPD Torpedo
DM3730 devkit")
Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Juerg Haefliger <juergh@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>

arch/arm/boot/dts/logicpd-torpedo-som.dtsi

@@ -90,6 +90,8 @@ filesystem@680000 {
 };
 
 &i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1_pins>;
 	clock-frequency = <2600000>;
 
 	twl: twl@48 {
@@ -137,6 +139,12 @@ OMAP3_CORE1_IOPAD(0x2184, PIN_INPUT_PULLUP | MUX_MODE4)	/* mcbsp4_clkx.gpio_152
 			OMAP3_CORE1_IOPAD(0x218e, PIN_OUTPUT | MUX_MODE4)	/* mcbsp1_fsr.gpio_157 */
 		>;
 	};
+	i2c1_pins: pinmux_i2c1_pins {
+		pinctrl-single,pins = <
+			OMAP3_CORE1_IOPAD(0x21ba, PIN_INPUT | MUX_MODE0)        /* i2c1_scl.i2c1_scl */
+			OMAP3_CORE1_IOPAD(0x21bc, PIN_INPUT | MUX_MODE0)        /* i2c1_sda.i2c1_sda */
+		>;
+	};
 };
 
 &omap3_pmx_core2 {