From: Thomas Huehn <thomas.huehn@hs-nordhausen.de>
Date: Wed, 2 Dec 2020 10:24:07 +0000 (+0100)
Subject: ath79: enable LNA for all ar9344 TPLink CPE devices
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=f330f991c1dcb483a1966d2d194afc2a40cd30fd;p=openwrt%2Fstaging%2Fxback.git

ath79: enable LNA for all ar9344 TPLink CPE devices

The TPLink CPE devices CPE210/CPE510 based on ar9344 have a build-in
Low Noise Amplifier on both of the 2x2 mimo rx chains.
This patch activates those two LNAs in the respective receiving chains
and hence improves the RX sensitivity by about 20dB.

Tested on CPE510 v2 & v3.

Signed-off-by: Thomas Huehn <thomas.huehn@hs-nordhausen.de>
Acked-by: Robert Marko <robimarko@gmail.com>
---

diff --git a/target/linux/ath79/dts/ar9344_tplink_cpe.dtsi b/target/linux/ath79/dts/ar9344_tplink_cpe.dtsi
index 6917e5e955..4e9401e60b 100644
--- a/target/linux/ath79/dts/ar9344_tplink_cpe.dtsi
+++ b/target/linux/ath79/dts/ar9344_tplink_cpe.dtsi
@@ -114,3 +114,19 @@
 &eth1 {
 	status = "okay";
 };
+
+&gpio {
+	gpio_ext_lna0 {
+		gpio-hog;
+		gpios = <18 GPIO_ACTIVE_HIGH>;
+		output-high;
+		line-name = "tp-link:ext:lna0";
+	};
+
+	gpio_ext_lna1 {
+		gpio-hog;
+		gpios = <19 GPIO_ACTIVE_HIGH>;
+		output-high;
+		line-name = "tp-link:ext:lna1";
+	};
+};
diff --git a/target/linux/ath79/dts/ar9344_tplink_cpe_2port.dtsi b/target/linux/ath79/dts/ar9344_tplink_cpe_2port.dtsi
index 1fce869160..e7d33ab22b 100644
--- a/target/linux/ath79/dts/ar9344_tplink_cpe_2port.dtsi
+++ b/target/linux/ath79/dts/ar9344_tplink_cpe_2port.dtsi
@@ -44,22 +44,6 @@
 	};
 };
 
-&gpio {
-	gpio_ext_lna0 {
-		gpio-hog;
-		gpios = <18 0>;
-		output-high;
-		line-name = "tp-link:ext:lna0";
-	};
-
-	gpio_ext_lna1 {
-		gpio-hog;
-		gpios = <19 0>;
-		output-high;
-		line-name = "tp-link:ext:lna1";
-	};
-};
-
 &eth1 {
 	mtd-mac-address = <&info 0x8>;