Messages in this thread Patch in this message | | | From | "H. Nikolaus Schaller" <> | Subject | [PATCH v5 4/5] DTS: gta04: add uart2 child node for w2sg00x4 | Date | Fri, 1 Dec 2017 08:49:37 +0100 |
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GTA04 has a W2SG0004/84 connected to UART2 of the OMAP3 processor. A GPIO can pulse the on/off toggle switch.
The VSIM regulator is used to power on/off the LNA of an external active GPS antenna so that a driver can turn the LNA off if GPS is not needed to save battery energy.
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> --- arch/arm/boot/dts/omap3-gta04.dtsi | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/arch/arm/boot/dts/omap3-gta04.dtsi b/arch/arm/boot/dts/omap3-gta04.dtsi index 4504908c23fe..1ad744a25c36 100644 --- a/arch/arm/boot/dts/omap3-gta04.dtsi +++ b/arch/arm/boot/dts/omap3-gta04.dtsi @@ -477,6 +477,13 @@ &uart2 { pinctrl-names = "default"; pinctrl-0 = <&uart2_pins>; + + gps: gps { + compatible = "wi2wi,w2sg0004"; + lna-supply = <&vsim>; /* LNA regulator */ + /* GPIO_145: trigger for on/off-impulse for w2sg0004 */ + enable-gpios = <&gpio5 17 GPIO_ACTIVE_HIGH>; + }; }; &uart3 { -- 2.12.2
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