Add option to reduce the RX antenna gain to be able to reduce the
sensitivity.
Signed-off-by: Paul Geurts <paul.geurts@xxxxxxxxxxxxxxxxxxxxxxxxx>
---
Documentation/devicetree/bindings/net/nfc/ti,trf7970a.yaml | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/Documentation/devicetree/bindings/net/nfc/ti,trf7970a.yaml b/Documentation/devicetree/bindings/net/nfc/ti,trf7970a.yaml
index d0332eb76ad2..5f49bd9ac5e6 100644
--- a/Documentation/devicetree/bindings/net/nfc/ti,trf7970a.yaml
+++ b/Documentation/devicetree/bindings/net/nfc/ti,trf7970a.yaml
@@ -55,6 +55,12 @@ properties:
description: |
Regulator for supply voltage to VIN pin
+ ti,rx-gain-reduction-db:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: |
+ Specify an RX gain reduction to reduce antenna sensitivity with 5dB per
+ increment, with a maximum of 15dB. Supported values: [0, 5, 10, 15].
+
required:
- compatible
- interrupts
@@ -95,5 +101,6 @@ examples:
irq-status-read-quirk;
en2-rf-quirk;
clock-frequency = <27120000>;
+ ti,rx-gain-reduction-db = <15>;
};
};
--
2.39.2
