From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 CDD5328F5; Tue, 6 Aug 2024 08:03:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722931386; cv=none; b=CAODBkpqFnnE/b16ExxgXs4KsjNLOWocqPBGNDQcfSMLy65Z1DPgaoo721SbxOnQupZrXrVcsgBPYbAUk1s4K1jsDWL2eoX1sTqf4M/bExoOw8pYxHvtVGl2Fc4VBxw0Br19z7YAkjUVecMgUEkVx/upQnMmuSnkEnXV6oOGyy0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722931386; c=relaxed/simple; bh=zzIj/WeoufyPCZS4n+BtaPoscu4PNSn8rv3qu8QXx/M=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=XB3SH3i/AHgZ7l5vFi9PLihErovC7xHMPif33GpAaTGDm554TOzxDgBEDn165gIKqto6+exxOMdJ0hVid3HqAh5xWK23HZ+knaJdHwGi5gREd2AmW4nHGA6B11TIcf/nPYAbaYO28vf+vrxYl2gsUNZ/BDm10f1jy65vFS6kU/M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=FGbIEqd+; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="FGbIEqd+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 686D6C32786; Tue, 6 Aug 2024 08:03:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1722931386; bh=zzIj/WeoufyPCZS4n+BtaPoscu4PNSn8rv3qu8QXx/M=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=FGbIEqd+Ke7Q41iLkgMjWrnfqm5F83dFisoYvBnWNCZzJhKGszTj3sWy3pDnc5DGb eei5rMib9qZ+5SaViL2gaY1yQc955ksw6AXZuiovU+MMC3wWyoC454rDfoMkxFUfmY d2LU92brDUbFQi0CRja0i6yjGmG2vifI/lK3oSvbwWYG6BZeBrEcuBjQOpzcwyB/jS NJkaWUkgAVNWo/1ymjWor0Jwm3MVfSkC503z/njSzG4aGGOgEUlHwSpwRJzkJtdvkv xwg5sJ8QRmd69zOTs8cVuqqYWMPIUYNnD3JFdlZdRHoJZrTUt9jfL/GUi49/QlpAuT UCB0+J0EBLczQ== Message-ID: <44feed5a-95a7-4baa-b17e-514c0f50dae6@kernel.org> Date: Tue, 6 Aug 2024 10:03:00 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 1/6] dt-bindings: ti, sci: Add property for partial-io-wakeup-sources To: Markus Schneider-Pargmann Cc: Nishanth Menon , Tero Kristo , Santosh Shilimkar , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Vignesh Raghavendra , Vibhore Vardhan , Kevin Hilman , Dhruva Gole , linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20240729080101.3859701-1-msp@baylibre.com> <20240729080101.3859701-2-msp@baylibre.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 06/08/2024 09:11, Markus Schneider-Pargmann wrote: > Hi Krzysztof, > > On Tue, Aug 06, 2024 at 08:18:01AM GMT, Krzysztof Kozlowski wrote: >> On 29/07/2024 10:00, Markus Schneider-Pargmann wrote: >>> Partial-IO is a very low power mode in which nearly everything is >>> powered off. Only pins of a few hardware units are kept sensitive and >>> are capable to wakeup the SoC. The device nodes are marked as >>> 'wakeup-source' but so are a lot of other device nodes as well that are >>> not able to do a wakeup from Partial-IO. This creates the need to >>> describe the device nodes that are capable of wakeup from Partial-IO. >>> >>> This patch adds a property with a list of these nodes defining which >>> devices can be used as wakeup sources in Partial-IO. >>> >> >>
>> This is a friendly reminder during the review process. >> >> It seems my or other reviewer's previous comments were not fully >> addressed. Maybe the feedback got lost between the quotes, maybe you >> just forgot to apply it. Please go back to the previous discussion and >> either implement all requested changes or keep discussing them. >> >> Thank you. >>
> > I tried to address your comment from last version by explaining more > thoroughly what the binding is for as it seemed that my previous > explanation wasn't really good. > > You are suggesting to use 'wakeup-source' exclusively. Unfortunately > wakeup-source is a boolean property which covers two states. I have at > least three states I need to describe: > > - wakeup-source for suspend to memory and other low power modes > - wakeup-source for Partial-IO > - no wakeup-source Maybe we need generic property or maybe custom TI would be fine, but in any case - whether device is wakeup and what sort of wakeup it is, is a property of the device. > > If something is a wakeup-source for Partial-IO it usually is a > wakeup-source for suspend to memory as well but not the other way > around. I understand, makes sense. The trouble is that your driver code does not indicate any of this. > > This is the reason why I added a property that lists the devicenodes > that are capable of wakeup from Partial-IO. This property looks purely to satisfy your driver design. Best regards, Krzysztof