tjh.dev / kernel
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dt-bindings: net/nfc: ti,trf7970a: Add ti,rx-gain-reduction-db option

Add option to reduce the RX antenna gain to be able to reduce the
sensitivity.

Signed-off-by: Paul Geurts <paul.geurts@prodrive-technologies.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20250626141242.3749958-2-paul.geurts@prodrive-technologies.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

authored by

Paul Geurts and committed by
Jakub Kicinski 2bee162a cb70b1bb

+7
+7
Documentation/devicetree/bindings/net/nfc/ti,trf7970a.yaml
··· 55 55 description: | 56 56 Regulator for supply voltage to VIN pin 57 57 58 + ti,rx-gain-reduction-db: 59 + $ref: /schemas/types.yaml#/definitions/uint32 60 + description: | 61 + Specify an RX gain reduction to reduce antenna sensitivity with 5dB per 62 + increment, with a maximum of 15dB. Supported values: [0, 5, 10, 15]. 63 + 58 64 required: 59 65 - compatible 60 66 - interrupts ··· 101 95 irq-status-read-quirk; 102 96 en2-rf-quirk; 103 97 clock-frequency = <27120000>; 98 + ti,rx-gain-reduction-db = <15>; 104 99 }; 105 100 };