From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 C4AA11EFFA1; Thu, 2 Jul 2026 08:20:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782980428; cv=none; b=bOoXs3b5iB8/Hf/edQaswZSCcVYBAL5NTlI1NF+E2MOXyJHy4ssbX/FPeL8PZbzsBCMLjNlo49MjJuZ7krLvH+JN1Kj8Mj0KbLZ3yB1/RCSkBMZbrrYy5AMUS/ZuXegvQrgzWBAlj/rYtVC42b1XANImKo+q3BjXi5LahUnwGO8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782980428; c=relaxed/simple; bh=LmVzqt+wcKMFEBH0/3jY7xJMUcJpisBCRa/PqC2dN8Q=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=Fh5RhtS1oKJfpwqSGUbQhlJbwdXLAQtHmoANwGKmuB8QGXt9jSFhc/0O4VqT4riByR8C2UkZBcPyBDOxLazb1pbj7SZiv9fAdChvpg7gYRlk3cQVBQSi0tH1IRteFz1qAaHiR7mv5h2fnn8E81yP0FgZw4+Pi1KGwIvURnBTKVM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=lDMrb3GZ; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="lDMrb3GZ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4A2EE1F000E9; Thu, 2 Jul 2026 08:20:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1782980427; bh=Nruy4vcEMvuLMGaeXCeSl5i/XMglZLpU3SqjhsZ3PYs=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=lDMrb3GZsubyRaOSIAKEeX83v0VFXBmRD7+X7F/Tn+N12VStbgPOuoXHB3UyIddFE /et1oKtvfPrmrKMBeTik5veOAInmjD7RJcuw/AO3ttMWkfkD0MZtxMiqYZP8LuARX/ ejwCCjL2OM5ogRTVK80Menepf22KiSIWWIoNDBYMNGQEjjEO7IQ8V+kFcNZf2ka+M1 v0iMktxdu+BZV6Hb7+7RP5sitWFystpvTAyOgucyNNLnIsZxX1AqzOcwe3YLZCnP6s yn5Kh+CIUsJhcx2P+80SQ+zepK8Qnktmsj8lch3PEACAifwIl6L7qDEbU7GT8ue1Gc FSdr0SX4G3yWw== Message-ID: <887cb4e9-d60d-47b5-9110-e00d18e9e46c@kernel.org> Date: Thu, 2 Jul 2026 10:20:20 +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 1/3] dt-bindings: rtc: Add sii,wakealarm-output-pin property for S35390A To: Alexandre Belloni Cc: Markus Probst , Rob Herring , Krzysztof Kozlowski , Conor Dooley , =?UTF-8?Q?Uwe_Kleine-K=C3=B6nig?= , Andrew Lunn , Gregory Clement , Sebastian Hesselbarth , linux-arm-kernel@lists.infradead.org, linux-rtc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260630-rtc_s35390a_int1-v1-0-1b2239e16be2@posteo.de> <20260630-rtc_s35390a_int1-v1-1-1b2239e16be2@posteo.de> <20260701-bronze-jaguar-of-perfection-028bac@quoll> <45e8157be53c3d8827fcccece7f706968bc056d3.camel@posteo.de> <7de66163-369e-4118-af51-6913b565fa4b@kernel.org> <20260701164821b7492eac@mail.local> <74b32ed0a700e3900c0f34d730b2b5b69eb2ca19.camel@posteo.de> <187099d0-5e09-49c2-b67d-8bd4366ff1a0@kernel.org> <202607020817017cde494f@mail.local> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 8bit On 02/07/2026 10:17, Alexandre Belloni wrote: > On 02/07/2026 08:09:55+0200, Krzysztof Kozlowski wrote: >>>> Then you need proper wakeup-source support >>> Wouldn't that break existing devicetrees? >> >> How? >> >>> >>> The current driver allows to wake up the system, even without >>> having wakeup-source set. >> >> Anyway, wakeup-source is already there in rtc, so this would be done. I >> don't get though, why there is no benefit of routing it to interrupt >> controller (interrupt controllers do wake up the system). Additionally, >> if you do not connect it to any interrupt, then how does it wake up the >> system? >> > > Some systems are routing the interrupt output of the RTC directly to the > PMIC and the PMIC is the one responsible for waking the rest of the > system, including the SoC. Yeah, then the PMIC has interrupt line to the SoC and the PMIC is the wakeup-source, not RTC. Best regards, Krzysztof