ARM: dts: gta04: add gps support

The GTA04 has a w2sg0004 or w2sg0084 gps chip. Not detectable
which one is mounted so use the compatibility entry for w2sg0004
for all which will work for both.

Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Reviewed-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/boot/dts/omap3-gta04.dtsi b/arch/arm/boot/dts/omap3-gta04.dtsi
index 666dd02..843d879 100644 (file)
--- a/arch/arm/boot/dts/omap3-gta04.dtsi
+++ b/arch/arm/boot/dts/omap3-gta04.dtsi
@@ -329,6 +329,12 @@
                >;
        };
 
+       gps_pins: pinmux_gps_pins {
+               pinctrl-single,pins = <
+                       OMAP3_CORE1_IOPAD(0x2176, PIN_OUTPUT_PULLDOWN | MUX_MODE4) /* gpio145 */
+               >;
+       };
+
        hdq_pins: hdq_pins {
                pinctrl-single,pins = <
                        OMAP3_CORE1_IOPAD(0x21c6, PIN_INPUT_PULLUP | MUX_MODE0) /* i2c3_sda.hdq */
@@ -666,6 +672,14 @@
 &uart2 {
        pinctrl-names = "default";
        pinctrl-0 = <&uart2_pins>;
+       gnss: gnss {
+               compatible = "wi2wi,w2sg0004";
+               pinctrl-names = "default";
+               pinctrl-0 = <&gps_pins>;
+               sirf,onoff-gpios = <&gpio5 17 GPIO_ACTIVE_HIGH>;
+               lna-supply = <&vsim>;
+               vcc-supply = <&ldo_3v3>;
+       };
 };
 
 &uart3 {