[PATCH] ipq40xx: limit available radio channels for GL.iNet GL-B2200

[Enrico Mioso]

The PCIe and built-in 5GHZ radios are meant to operate on different
frequency bands. The hardware enforces this via RF filters.
Add this information to allow software enforcing it as well.
Credits to Piotr Dymacz for the invaluable help.

Signed-off-by: Enrico Mioso <mrkiko.rs at gmail.com>
---
Also due to the nature of this patch, testing it might not be easy.
Still, applying it shoudn't cause issues, as the only uncertainty is whether we will need to stricter the limits. So I think this should go in.
---
 .../ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-gl-b2200.dts   | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-gl-b2200.dts b/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-gl-b2200.dts
index 243dcb84d6..754af7c820 100644
--- a/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-gl-b2200.dts
+++ b/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-gl-b2200.dts
@@ -367,6 +367,7 @@
 			nvmem-cell-names = "calibration";
 			nvmem-cells = <&cal_art_9000>;
 			qcom,ath10k-calibration-variant = "GL-B2200";
+			ieee80211-freq-limit = <5450000 5900000>;
 		};
 	};
 };
@@ -383,4 +384,5 @@
 	nvmem-cell-names = "pre-calibration";
 	nvmem-cells = <&precal_art_5000>;
 	qcom,ath10k-calibration-variant = "GL-B2200";
+	ieee80211-freq-limit = <5100000 5400000>;
 };
-- 
2.34.1