[PATCH v3 2/2] arm: dts: gta04: add gps support

[Andreas Kemnade]

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 <andr...@kemnade.info>
---
Changes in v3:
- converted to a patchset
- added vcc-supply

Changes in v2:
- some s/gps/gnss/
- not added vcc-supply because the regulator is not modelled
  in dts at all

w2sg0004 bindings are in next-20190129

 arch/arm/boot/dts/omap3-gta04.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm/boot/dts/omap3-gta04.dtsi 
b/arch/arm/boot/dts/omap3-gta04.dtsi
index 02d8274a2f47..4ea0f7dc37c6 100644
--- a/arch/arm/boot/dts/omap3-gta04.dtsi
+++ b/arch/arm/boot/dts/omap3-gta04.dtsi
@@ -320,6 +320,12 @@
                >;
        };
 
+       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 */
@@ -652,6 +658,14 @@
 &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 {
-- 
2.11.0