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luckfox-lyra-zero-w: Default to onboard wifi antenna, add ipex overlay #468

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luckfox-lyra-zero-w: Default to onboard wifi antenna, add ipex overlay #468

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1 change: 1 addition & 0 deletions arch/arm/boot/dts/overlay/Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@ dtbo-$(CONFIG_ARCH_ROCKCHIP) += \
rockchip-luckfox-lyra-plus-spi0-1cs-spidev.dtbo \
rockchip-luckfox-lyra-plus-spi0-2cs-spidev.dtbo \
rockchip-luckfox-lyra-ultra-w-spi0-1cs-spidev.dtbo \
rockchip-luckfox-lyra-zero-w-ipex-antenna.dtbo \
rockchip-luckfox-lyra-zero-w-spi0-1cs-spidev.dtbo \
rockchip-luckfox-lyra-zero-w-spi0-2cs-spidev.dtbo \
rockchip-luckfox-lyra-zero-w-spi1-1cs-spidev.dtbo \
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4 changes: 4 additions & 0 deletions arch/arm/boot/dts/overlay/README.rockchip-overlays
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Original file line number Diff line number Diff line change
Expand Up @@ -28,6 +28,7 @@ for Luckfox Lyra Ultra W:
- spi0-1cs-spidev

for Luckfox Lyra Zero W:
- ipex-antenna
- spi0-1cs-spidev
- spi0-2cs-spidev
- spi1-1cs-spidev
Expand Down Expand Up @@ -73,6 +74,9 @@ Retains pin-compatibility with Luckfox Pico Plus.
Enables SPI0 spidev on luckfox-lyra-ultra-w with one chipselect.
Retains pin-compatibility with Luckfox Pico Ultra.

### luckfox-lyra-zero-w-ipex-antenna
Switches wifi/bluetooth from the onboard antenna to the external IPEX connector.

### luckfox-lyra-zero-w-spi0-1cs-spidev
Enables SPI0 spidev on luckfox-lyra-zero-w with one chipselect.
Compatible with Raspberry Pi 'spi0-1cs' hats.
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23 changes: 23 additions & 0 deletions arch/arm/boot/dts/overlay/rockchip-luckfox-lyra-zero-w-ipex-antenna.dts
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Original file line number Diff line number Diff line change
@@ -0,0 +1,23 @@
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
* Switch wifi/bluetooth antenna from onboard to external IPEX connector
* on Luckfox Lyra Zero W.
*/

/dts-v1/;
/plugin/;

/ {
metadata {
title = "Enable IPEX antenna on luckfox-lyra-zero-w";
compatible = "rockchip,rk3506b-lyra-zero";
category = "misc";
description = "Switch wifi/bluetooth from onboard antenna to external IPEX connector (GPIO1_C7 low).";
};
};

&gpio1 {
ant-sel-hog {
output-low;
};
};
15 changes: 15 additions & 0 deletions arch/arm/boot/dts/rk3506b-luckfox-lyra-zero-w-sd.dts
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Expand Up @@ -99,6 +99,21 @@
status = "okay";
};

/**********gpio**********/
&gpio1 {
/*
* Antenna selection GPIO
* output-high = Onboard antenna selected
* output-low = External (ipex) antenna selected
*/
ant-sel-hog {
gpio-hog;
gpios = <RK_PC7 GPIO_ACTIVE_HIGH>;
output-high;
line-name = "ant-sel";
};
};

/**********pinctrl**********/
&pinctrl {
lcd {
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