From mboxrd@z Thu Jan 1 00:00:00 1970 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 2198B2E8E1A; Thu, 26 Jun 2025 14:12:44 +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=1750947167; cv=none; b=Sz22M4Qjznvb58YCn+RtDpueAZjXcMqI3iZxU5KPKGTtNQ8iORa85ByobPdF3KWdSBf0q53AnjoBcGp9ObvMHNkNbEJvJk6boRoDAjYBWfRBolkhVNbVVm0bs3hSNAyHrhnN5JXd364Vt050NxDEN1lCIrHh+H+SihzSOGsRl/Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750947167; c=relaxed/simple; bh=3MeOySdcRKJUoBvoyqKyt6Vs9WU0brnzVpnrqO+bWM0=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=BOgFDuph/b2BVjcjXG57g9hXuX88qnbkMTWHP3rWDJGmTfyvb+xgAepCJcqB1zeZTuYJ9m2SROwYnVegfBkkToecTxhPseoDT5ZMUe5KlY6NSHcg4P6LCBGb0naub6cQAJkTjF8KPb2J8JTfP97aMklQOogqJticvzmf3ZoPcBc= 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; Thu, 26 Jun 2025 16:12:42 +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; Thu, 26 Jun 2025 16:12:42 +0200 Received: from paugeu by lnxdevrm02.bk.prodrive.nl with local (Exim 4.96) (envelope-from ) id 1uUnLG-00Fqtl-2r; Thu, 26 Jun 2025 16:12:42 +0200 From: Paul Geurts To: , , , , , , , , , , , , CC: , Paul Geurts Subject: [PATCH v3 0/2] NFC: trf7970a: Add option to reduce antenna gain Date: Thu, 26 Jun 2025 16:12:40 +0200 Message-ID: <20250626141242.3749958-1-paul.geurts@prodrive-technologies.com> X-Mailer: git-send-email 2.39.2 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain The TRF7970a device is sensitive to RF disturbances, which can make it hard to pass some EMC immunity tests. By reducing the RX antenna gain, the device becomes less sensitive to EMC disturbances, as a trade-off against antenna performance. Signed-off-by: Paul Geurts --- v2 -> v3: - User SI units for the DT property, instead of the direct register value v1 -> v2: - Added vendor prefix - Added units