From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from relay7-d.mail.gandi.net (relay7-d.mail.gandi.net [217.70.183.200]) (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 BB8194A28 for ; Mon, 26 Aug 2024 08:13:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.183.200 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724660016; cv=none; b=pENfD8igPpfMaIm1OHyh2TAzAVtxcj6hYz2hznetFEeUKe9SyhSe37c+lWU/SMHehW21ZrNTzsd3x8/JLcAKZUL48JinLiOa+u3Kzw2PfzhreBX/adKBjLwmDKxLpxvd4s9VFCb0iN72ro1ODiQWBYp1sXqawa9POsr7Cd8pjEk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724660016; c=relaxed/simple; bh=Qp/00LpdFt9fyZ9y8QshjY+ptg9wzwMtAYA98L2na+o=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=VaXb/Ykl8Mr+8d3cWlHc2nht9syuYOeaSBFPweHZI4tx1DOQqz0biyaqIB7mwCw3z5xyGxV1WCWfAdE8EsRuTXt9wLkASAHmCf6wb94ZolAFGYxh9Ynl2snIkppvARpYnyvimZzYcDFkAxDH2p3cdpiyCM10soruA8VwB0s/hqU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=LrSIsxdl; arc=none smtp.client-ip=217.70.183.200 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="LrSIsxdl" Received: by mail.gandi.net (Postfix) with ESMTPSA id 3D35D20007; Mon, 26 Aug 2024 08:13:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1724660007; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Qp/00LpdFt9fyZ9y8QshjY+ptg9wzwMtAYA98L2na+o=; b=LrSIsxdlmUt5Cou9Feh8QCcpu4xZ0fj6zVtQ2So7NSmWHulQyMiQPZs67HToG1ptjSlVRf HGZPAGVF2OZOOdGJ6BXW6X8oOScS/y38En16izvGbzQMHpVdeO9CDkdYMq3x7waYSg0F0t nFwf48cMzmjz1EdvjMOJnE3at65uHFXltVc329sYuKBtUng1mhGkgJ3l/Le/i4YnJMmjIf vn4rIxT8rGOjWv6o4MtnRaaxG4QtA08OMHSTrlq4MPpTBiOH9tzKZc1qZxK8WP1RSYHOrz D8x0HP9JxckoBRAu53ANliqxTAUFC8Tumti1BDG4AdLT+qN9LCn02dnuXUCF2g== Date: Mon, 26 Aug 2024 10:13:23 +0200 From: Miquel Raynal To: carlos.song@nxp.com Cc: alexandre.belloni@bootlin.com, linux-i3c@lists.infradead.org, linux-kernel@vger.kernel.org, imx@lists.linux.dev, linux-imx@nxp.com Subject: Re: [PATCH v3] i3c: master: support to adjust first broadcast address speed Message-ID: <20240826101323.746b617c@xps-13> In-Reply-To: <20240826050957.1881563-1-carlos.song@nxp.com> References: <20240826050957.1881563-1-carlos.song@nxp.com> Organization: Bootlin X-Mailer: Claws Mail 4.2.0 (GTK 3.24.41; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-GND-Sasl: miquel.raynal@bootlin.com Hi Carlos, carlos.song@nxp.com wrote on Mon, 26 Aug 2024 13:09:57 +0800: > From: Carlos Song >=20 > According to I3C spec 6.2 Timing Specification, the Open Drain High Period > of SCL Clock timing for first broadcast address should be adjusted to 200= ns > at least. I3C device working as i2c device will see the broadcast to close > its Spike Filter then change to work at I3C mode. After that I3C open dra= in > SCL high level should be adjusted back. >=20 > Signed-off-by: Carlos Song > Reviewed-by: Frank Li Reviewed-by: Miquel Raynal Frank, did you test it with eg. the Silvaco master? Thanks, Miqu=C3=A8l