From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from relay6-d.mail.gandi.net (relay6-d.mail.gandi.net [217.70.183.198]) (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 861AF2B9B7 for ; Mon, 12 May 2025 09:25:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.183.198 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747041928; cv=none; b=aEH1psOfXIdcNUdVzgYLVI+rC9IBPcU6N3lTxMvDt74FFEBm37GmOqdZuuTXWSTFlZyl3gXHqycCPzIuNgJYRHgRKJbYat3v+GJtXb6+llHdCVnH/FQV/LIypcCIfynhXEjWFKRXn+1pGlKRGQ+G9sG5yBhuY+Yw9UVZcvG5FyY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747041928; c=relaxed/simple; bh=OLSHO2Ibs2uoIHZrl9Xn5cSfahZ7tkgcZIzEwxzVdy4=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=Xf6lr1T3cwaDfe8XzYiuuQhcVMl8P2uMn7LiE5wSZCq5hCc98ZIZn5pkOySiOLB0GVOI0lZjHevhrkg2doFidElakvuE5z+9vLAlRlkeV3VSTbhWRroCi0TVYzSOkKwj6SDWLkTlL3yAQt4gpWp0sv/kX0k2nyWlRrWAtTdqa2A= 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=oM8oOPXd; arc=none smtp.client-ip=217.70.183.198 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="oM8oOPXd" Received: by mail.gandi.net (Postfix) with ESMTPSA id C8ED743284; Mon, 12 May 2025 09:25:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1747041918; 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: in-reply-to:in-reply-to:references:references; bh=OLSHO2Ibs2uoIHZrl9Xn5cSfahZ7tkgcZIzEwxzVdy4=; b=oM8oOPXdDFoFnYhlHrGrcIe4CG/Ex8eoF29mMpTzDa4skMFmN0wxKB9InrYu0A2XX5kISl IdqwbEeqroNrcN3vwnXjqC3FdPTwcDeWfszZ2jyK6vuFvi0ySKsjFklBXL3Z85xbIRcaQz 9fdOPyuALkEEK0sX81UP0Fr+yWf11p0RM/95lQ8PC0UFTetPReRsHX4vzDdsAheyLjqmrg gYBmJ3H06k6HsW9VAOl6DpBxf0gwr+ub8dvIe2eaWcJHrTY1ni9wpL62lxudV4RTwtaq+n ZL2OmAiMPKplVLAImdwI9QqBS/D3amh9wBr6qJRJSz17oLUQZf4qTXw9flfs5g== From: Miquel Raynal To: Frank Li Cc: Alexandre Belloni , linux-i3c@lists.infradead.org (moderated list:SILVACO I3C DUAL-ROLE MASTER), imx@lists.linux.dev (open list:SILVACO I3C DUAL-ROLE MASTER), linux-kernel@vger.kernel.org (open list) Subject: Re: [PATCH v2 1/1] i3c: master: svc: skip address resend on repeat START In-Reply-To: <20250429054234.4013929-1-Frank.Li@nxp.com> (Frank Li's message of "Tue, 29 Apr 2025 01:42:34 -0400") References: <20250429054234.4013929-1-Frank.Li@nxp.com> User-Agent: mu4e 1.12.7; emacs 29.4 Date: Mon, 12 May 2025 11:25:16 +0200 Message-ID: <877c2mmb9f.fsf@bootlin.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain X-GND-State: clean X-GND-Score: -100 X-GND-Cause: gggruggvucftvghtrhhoucdtuddrgeefvddrtddtgdeftddtkeelucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuifetpfffkfdpucggtfgfnhhsuhgsshgtrhhisggvnecuuegrihhlohhuthemuceftddunecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenucfjughrpefhvfevufgjfhgffffkgggtsehttdertddtredtnecuhfhrohhmpefoihhquhgvlhcutfgrhihnrghluceomhhiqhhuvghlrdhrrgihnhgrlhessghoohhtlhhinhdrtghomheqnecuggftrfgrthhtvghrnhephfelkedvveffleeuhfeigfdvvefhgfejgffghfeiteegteeiudegfedtjeehkeefnecukfhppeeltddrkeelrdduieefrdduvdejnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehinhgvthepledtrdekledrudeifedruddvjedphhgvlhhopehlohgtrghlhhhoshhtpdhmrghilhhfrhhomhepmhhiqhhuvghlrdhrrgihnhgrlhessghoohhtlhhinhdrtghomhdpnhgspghrtghpthhtohephedprhgtphhtthhopefhrhgrnhhkrdfnihesnhigphdrtghomhdprhgtphhtthhopegrlhgvgigrnhgurhgvrdgsvghllhhonhhisegsohhothhlihhnrdgtohhmpdhrtghpthhtoheplhhinhhugidqiheftgeslhhishhtshdrihhnfhhrrgguvggrugdrohhrghdprhgtphhtthhopehimhigsehlihhsthhsrdhlihhnuhigrdguvghvpdhrtghpthhtoheplhhinhhugidqkhgvrhhnvghlsehvghgvrhdrk hgvrhhnvghlrdhorhhg X-GND-Sasl: miquel.raynal@bootlin.com On 29/04/2025 at 01:42:34 -04, Frank Li wrote: > According to the I3C specification, address arbitration only happens during > the START. Repeated START do not initiate arbitration, and In-Band > Interrupts (IBIs) cannot occur at this stage. > > Resending the address upon a NACK in a repeat START is therefore redundant > and unnecessary. Avoid redundant retries, improving efficiency and ensuring > protocol compliance. > > Signed-off-by: Frank Li > --- Reviewed-by: Miquel Raynal