From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.zeus03.de (zeus03.de [194.117.254.33]) (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 4697A3CF7E for ; Sat, 31 Aug 2024 15:31:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=194.117.254.33 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725118302; cv=none; b=SR1upfH8mY6j/wn54dWp+0ps1KGmYeYFePdIhslFV9vkcNHJywKA4lytGIf/bjo4mMRzG1BsAaBARMPL9+xwrCKCq5BgbKl9WCBth35/I6gY7VZFxn0s+7gRCmybayi5i+FoRouUq0PBMJjfRbdiC4wBLJCHimekmXWqVshMkQk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725118302; c=relaxed/simple; bh=DYZUjdNNimKGZoyJCELSptbQ3XZTKhzJH8kg6cdiYs4=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=AJ6HhW8BcHnjsuS+kXabbkHBIhOs8W1b1685wm8K2LQrNBDaD0FWr55btQjwee6vn93PoR35VItz1ZD7jHzeLUWDsCnAz5agjcIBXd+rmvjCmg8mT81urNdZYQGYRNLY8AfPdMiYzpj+17Z3YKJfPEjjyBjToG9fLGqpxCugY/Q= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sang-engineering.com; spf=pass smtp.mailfrom=sang-engineering.com; dkim=pass (2048-bit key) header.d=sang-engineering.com header.i=@sang-engineering.com header.b=UdCpnIch; arc=none smtp.client-ip=194.117.254.33 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sang-engineering.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sang-engineering.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=sang-engineering.com header.i=@sang-engineering.com header.b="UdCpnIch" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= sang-engineering.com; h=date:from:to:cc:subject:message-id :references:mime-version:content-type:in-reply-to; s=k1; bh=bPIU QgoAX+ZCwRz2joXdmT6IKhlmXSEgTdTYNX/r8Ok=; b=UdCpnIchaOKUq1DkMJPg Lr6tmEkk//ctS+HH4nKUzxhQoC24tNgjYteeiW+fPnd3Hi1I/LQ18+CTEk2rimtI tAJ9OaM/EFl/a0LTKLhumsrH7hU5H3w5nHwT+ORzFRnfX1/4oBJpi6LKRodo38GP JmBzBU3Zd3tRIbFq//nOz76Y5mgqs+fgYvN6nBYu/8G2tLQD61G5n4pYsb9bGiy+ DxuQ+IWUo8UDGDzy4n20dtX3uvHyaHrb+2j5w0AttgagVeG0aAB4+++IfUuTOZcp 9DbW6cBzVNtwC3skpFoLd5XeOlLvemIUSnAIBKwAt/kh4lGLd/ihc3Bl3kLx7w9v DA== Received: (qmail 3580804 invoked from network); 31 Aug 2024 17:31:30 +0200 Received: by mail.zeus03.de with ESMTPSA (TLS_AES_256_GCM_SHA384 encrypted, authenticated); 31 Aug 2024 17:31:30 +0200 X-UD-Smtp-Session: l3s3148p1@6ZXYZvwgpUBtKnNj Date: Sat, 31 Aug 2024 17:31:29 +0200 From: Wolfram Sang To: Geert Uytterhoeven Cc: linux-renesas-soc@vger.kernel.org, Andi Shyti , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Geert Uytterhoeven , Magnus Damm , linux-i2c@vger.kernel.org, devicetree@vger.kernel.org Subject: Re: [RFC PATCH 1/2] dt-bindings: i2c: renesas,rcar-i2c: document SMBusAlert usage Message-ID: Mail-Followup-To: Wolfram Sang , Geert Uytterhoeven , linux-renesas-soc@vger.kernel.org, Andi Shyti , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Geert Uytterhoeven , Magnus Damm , linux-i2c@vger.kernel.org, devicetree@vger.kernel.org References: <20240826150840.25497-4-wsa+renesas@sang-engineering.com> <20240826150840.25497-5-wsa+renesas@sang-engineering.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="2XyhbaEh6F/M9F/x" Content-Disposition: inline In-Reply-To: --2XyhbaEh6F/M9F/x Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hi Geert, > IIUIC, this is not a property of the hardware, but a side-channel > independent from the actual I2C controller hardware? Then a generic > "smbus-alert-gpios" property sounds more appropriate to me. It is not generic. While it is true that most I2C controllers do need GPIOs as a side channel, there are controllers having... > BTW, are you aware of any I2C controller having a dedicated input pin > for this? ... this. Check 'i2c-stm32f7.c' or 'i2c-xlp9xx.c'. Thank you for your comments! 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