From patchwork Tue Jun 24 12:42:46 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Geurts X-Patchwork-Id: 899931 Received: from mail.prodrive-technologies.com (mail.prodrive-technologies.com [212.61.153.67]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6C4BF2951B3; Tue, 24 Jun 2025 12:48:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=212.61.153.67 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750769294; cv=none; b=GO+1qn5gpgXEcIjteNQtdWFXIzu9hD4sV5kkIlfQpnSe0/nqlyfmrGBGlOKWWmJgGSvo29LcxQi4FtpLc03to5Lnw6C5g3banqZwaPv26ZlxR5p71vHO3feWu2xEBmPmohAyjrGFSJkgxIf0K1EJtqmu6FqrIIS1FHlrjEC1YaI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750769294; c=relaxed/simple; bh=GDg7794sHBbkt+MM1DfT6KRSx7x6z575w6eN9ITIxXc=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=Fgo28bYBqCDH9VGNtAcWSJ1w2cTNEB2nvd6ngq8wM2F1WVQv6BP0UguPCYiDMlzP8DA+0jzHGhnn0zyDTm1KM6JgcK/niw/VykconLRZRvwLh3PVrYwP4YvMNupHbORwfiW8byJTaXFLLJvY2mKCvH+g5ogL163kClhmLDpW8Dc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=prodrive-technologies.com; spf=pass smtp.mailfrom=prodrive-technologies.com; arc=none smtp.client-ip=212.61.153.67 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=prodrive-technologies.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=prodrive-technologies.com Received: from EXCOP01.bk.prodrive.nl (10.1.0.22) by EXCOP01.bk.prodrive.nl (10.1.0.22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.4; Tue, 24 Jun 2025 14:43:03 +0200 Received: from lnxdevrm02.bk.prodrive.nl (10.1.1.121) by EXCOP01.bk.prodrive.nl (10.1.0.22) with Microsoft SMTP Server id 15.2.1544.4 via Frontend Transport; Tue, 24 Jun 2025 14:43:03 +0200 Received: from paugeu by lnxdevrm02.bk.prodrive.nl with local (Exim 4.96) (envelope-from ) id 1uU2zO-00BgGz-35; Tue, 24 Jun 2025 14:43:02 +0200 From: Paul Geurts To: , , , , , , , , , , , , CC: , Paul Geurts Subject: [PATCH v2 1/2] dt-bindings: net/nfc: ti,trf7970a: Add ti,rx-gain-reduction option Date: Tue, 24 Jun 2025 14:42:46 +0200 Message-ID: <20250624124247.2763864-2-paul.geurts@prodrive-technologies.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20250624124247.2763864-1-paul.geurts@prodrive-technologies.com> References: <20250624124247.2763864-1-paul.geurts@prodrive-technologies.com> Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add option to reduce the RX antenna gain to be able to reduce the sensitivity. Signed-off-by: Paul Geurts --- 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..066a7abc41e0 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: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + Specify a RX gain reduction to reduce antenna sensitivity with 5dB per + increment, with a maximum of 15dB. + required: - compatible - interrupts @@ -95,5 +101,6 @@ examples: irq-status-read-quirk; en2-rf-quirk; clock-frequency = <27120000>; + ti,rx-gain-reduction = <3>; }; };