ARM: dts: omap4-droid4: Add tmp105 sensor for droid 4

Add tmp105 sensor for droid 4. This can be used with modprobe
lm75.ko and running sensors from lm-sensors package. Note that
the lm75.c driver does not yet support alert interrupt but
droid 4 seems to be wired for it.

Cc: devicetree@vger.kernel.org
Cc: Marcel Partap <mpartap@gmx.net>
Cc: Michael Scott <michael.scott@linaro.org>
Tested-By: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/omap4-droid4-xt894.dts b/arch/arm/boot/dts/omap4-droid4-xt894.dts
index 1830f747354f..05046edefee7 100644
--- a/arch/arm/boot/dts/omap4-droid4-xt894.dts
+++ b/arch/arm/boot/dts/omap4-droid4-xt894.dts
@@ -81,6 +81,20 @@
         status = "disabled";
 };
 
+&i2c1 {
+        tmp105@48 {
+                compatible = "ti,tmp105";
+                reg = <0x48>;
+                pinctrl-0 = <&tmp105_irq>;
+                pinctrl-names = "default";
+                /* kpd_row0.gpio_178 */
+                interrupts-extended = <&gpio6 18 IRQ_TYPE_EDGE_FALLING
+                                       &omap4_pmx_core 0x14e>;
+                interrupt-names = "irq", "wakeup";
+                wakeup-source;
+        };
+};
+
 &keypad {
         keypad,num-rows = <8>;
         keypad,num-columns = <8>;
@@ -242,6 +256,13 @@
                 >;
         };
 
+        /* kpd_row0.gpio_178 */
+        tmp105_irq: pinmux_tmp105_irq {
+                pinctrl-single,pins = <
+                OMAP4_IOPAD(0x18e, PIN_INPUT_PULLUP | MUX_MODE3)
+                >;
+        };
+
         usb_gpio_mux_sel1: pinmux_usb_gpio_mux_sel1_pins {
                 /* gpio_60 */
                 pinctrl-single,pins = <