From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from relay9-d.mail.gandi.net (relay9-d.mail.gandi.net [217.70.183.199]) (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 283B91EA7E1; Fri, 13 Jun 2025 07:30:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.183.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749799824; cv=none; b=Kh37x93sY51sdGBPbLafokUE3Bgm5W0VtEKtMyawvQM8M2c0KNfk+uOm95qNsBVgcOlgKWEoWYMlaNXwV5TGTLeiZdIkfG06ZXvJv9ak5uciG22GddtIAQfdiApMzuPJfwa7gQoUd+LBwVxy2ZI26Eu5YyEg6OBM8PmpA0GF3R8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749799824; c=relaxed/simple; bh=JaMvdmEB/xNxDbDBv2rfaj0AEG3Hnsd5q0m4mD/t37I=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=Kj6TSFUlbLFALlgzYtuUzmQA3wLrNEmipeTat0VVpqKBzz/ZU8/b06kIcIVCVoSmi3K3EeQcpgALkoaWJqKdgqU3NASoM5gCzCvHK2fkkxl+2q+PmLNuUJ8/bYytvSMNlk1ZAh8DHcejEr12GBAXA40ovbXkkv1Feinkx1M7vM8= 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=AoIaen+J; arc=none smtp.client-ip=217.70.183.199 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="AoIaen+J" Received: by mail.gandi.net (Postfix) with ESMTPSA id C8D56443E0; Fri, 13 Jun 2025 07:30:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1749799818; 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=49gLt15vu4mXbCU+te8YR47e4SuHu/CNyG4+R0GFtfQ=; b=AoIaen+JdHaQhT0muniYwYMTBLi5m28ommnG27txBGyXsFiV8yYOp66M7LgdeTx0JFqx60 JHt/BALBmHTrKhpR6dlvnlrSL8dQr4RBrJcbCCkC8RQiJAEhaUk+iYIRMQ2usSQnJ5NoQz gAaFsOtk11Nc1jA+IJdFlmiGj/KDjtdUJahMxlwW7SezkEQd8HnOTdFmFi8yMcHtWhbKZM bEPd0NC9QpqAzqMhCdNzBLZdY7D/iEELhFF5XV1vJO+LrMJXp6yVEjsZDcgqql9c/bDOYx 9IsEf4zUcBT+CtcMnk1cADsr4DwFQ8qi1jlMPhjUraOf4ZGNDA4UWD1aBRNlug== Date: Fri, 13 Jun 2025 09:30:16 +0200 From: Herve Codina To: Ayush Singh Cc: conor+dt@kernel.org, devicetree@vger.kernel.org, krzk+dt@kernel.org, linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, luca.ceresoli@bootlin.com, robh@kernel.org, thomas.petazzoni@bootlin.com, wsa+renesas@sang-engineering.com Subject: Re: [RFC PATCH 0/3] i2c: Introduce i2c bus extensions Message-ID: <20250613093016.43230e3b@bootlin.com> In-Reply-To: <525877c8-6c64-45b3-b4aa-a52768e59b86@beagleboard.org> References: <20250205173918.600037-1-herve.codina@bootlin.com> <525877c8-6c64-45b3-b4aa-a52768e59b86@beagleboard.org> Organization: Bootlin X-Mailer: Claws Mail 4.3.0 (GTK 3.24.43; x86_64-redhat-linux-gnu) Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-GND-State: clean X-GND-Score: -100 X-GND-Cause: gggruggvucftvghtrhhoucdtuddrgeeffedrtddugddujeefhecutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfitefpfffkpdcuggftfghnshhusghstghrihgsvgenuceurghilhhouhhtmecufedtudenucesvcftvggtihhpihgvnhhtshculddquddttddmnecujfgurhepfffhvfevuffkjghfohfogggtgfesthekredtredtjeenucfhrhhomhepjfgvrhhvvgcuvehoughinhgruceohhgvrhhvvgdrtghoughinhgrsegsohhothhlihhnrdgtohhmqeenucggtffrrghtthgvrhhnpeeviefffeegiedtleelieeghfejleeuueevkeevteegffehledtkeegudeigffgvdenucfkphepledtrdekledrudeifedruddvjeenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepihhnvghtpeeltddrkeelrdduieefrdduvdejpdhhvghloheplhhotggrlhhhohhsthdpmhgrihhlfhhrohhmpehhvghrvhgvrdgtohguihhnrgessghoohhtlhhinhdrtghomhdpnhgspghrtghpthhtohepuddtpdhrtghpthhtoheprgihuhhshhessggvrghglhgvsghorghrugdrohhrghdprhgtphhtthhopegtohhnohhrodgutheskhgvrhhnvghlrdhorhhgpdhrtghpthhtohepuggvvhhitggvthhrvggvsehvghgvrhdrkhgvrhhnvghlrdhorhhgpdhrtghpthhtohepkhhriihkodgutheskhgvrhhnvghlrdhorhhgpdhrtghpthhtoheplhhinhhugidqihdvtgesvhhgvghrrdhkvghrnhgvlhdrohhrghdprhgtp hhtthhopehlihhnuhigqdhkvghrnhgvlhesvhhgvghrrdhkvghrnhgvlhdrohhrghdprhgtphhtthhopehluhgtrgdrtggvrhgvshholhhisegsohhothhlihhnrdgtohhmpdhrtghpthhtoheprhhosghhsehkvghrnhgvlhdrohhrgh X-GND-Sasl: herve.codina@bootlin.com Hi Ayush, On Thu, 12 Jun 2025 13:22:45 +0530 Ayush Singh wrote: > I have tested this patch series for use with pocketbeagle 2 connector > driver [0]. To get a better idea how it looks in real devicetree, see > the base tree [1] and the overlay [2]. Since it also used gpio and pwm > nexus nodes, along with providing pinmux for pins, it can provide a > better picture of how the different pieces (export-symbols, nexus nodes, > etc) look when combined. Nice. Happy to see that I am no more alone with a system using these features. > > > I also have a question for Herve. Do you already have any working > patches for similar extension for SPI and UART in some private tree? No, I didn't do anything related to SPI nor UART. On my system, no SPI nor UART are wired to my connector and so, I haven't got any needs to implement extension busses for SPI an UART (serial dev bus) nor any support for nexus nodes for other kind of components. Best regards, Hervé