From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5479CC4742C for ; Tue, 3 Nov 2020 21:32:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 265D6223BF for ; Tue, 3 Nov 2020 21:32:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604439127; bh=a7ZH9fyHYZTO/SRArO7XSMg0/aQU+bYIqJmSUVsuhCA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=oMcEOW1VppT/Smip+69wvuzrARAAcDlolM5h7FB1eBJz17PPD985plMbbENsl3uwe 810Vrmjev9Pq7L1yoeauL3PG+Rj3UNqbc5EMeLZ1yTp0DU4koUQEFgWuFDLLMX++lk 3edtHWQh1GH03/dTtkx+b8SxAixIuiIsF2tZNlwU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732904AbgKCVcG (ORCPT ); Tue, 3 Nov 2020 16:32:06 -0500 Received: from mail.kernel.org ([198.145.29.99]:59640 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732129AbgKCU5W (ORCPT ); Tue, 3 Nov 2020 15:57:22 -0500 Received: from localhost (p5486c89f.dip0.t-ipconnect.de [84.134.200.159]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 90F52223BF; Tue, 3 Nov 2020 20:57:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604437042; bh=a7ZH9fyHYZTO/SRArO7XSMg0/aQU+bYIqJmSUVsuhCA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=QTtwg4L4/i86DoriZ3tYS9UO8SdYNdPyXWiI6EoauuBTIeuVHWnP26XFh7c0Rq1L+ GgIz9Uj1tNWnCbVSuQYAtd/ppNMWuddZbO32TkTXv71MqGsLvgzWEgp4k3AeCK16Ad iyf6nSlurOM/etk+w2gx0lPk1Gkmv10vscjFFcCg= Date: Tue, 3 Nov 2020 21:57:18 +0100 From: Wolfram Sang To: Cristian Ciocaltea Cc: Manivannan Sadhasivam , Andreas =?utf-8?Q?F=C3=A4rber?= , Peter Rosin , linux-i2c@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-actions@lists.infradead.org Subject: Re: [PATCH 2/3] i2c: owl: Add support for atomic transfers Message-ID: <20201103205718.GC1583@kunai> Mail-Followup-To: Wolfram Sang , Cristian Ciocaltea , Manivannan Sadhasivam , Andreas =?utf-8?Q?F=C3=A4rber?= , Peter Rosin , linux-i2c@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-actions@lists.infradead.org References: <1af37112fafd6cf069dfe864560f77996f57d80d.1602190168.git.cristian.ciocaltea@gmail.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="m51xatjYGsM+13rf" Content-Disposition: inline In-Reply-To: <1af37112fafd6cf069dfe864560f77996f57d80d.1602190168.git.cristian.ciocaltea@gmail.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --m51xatjYGsM+13rf Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Oct 09, 2020 at 12:44:40AM +0300, Cristian Ciocaltea wrote: > Atomic transfers are required to properly power off a machine through > an I2C controlled PMIC, such as the Actions Semi ATC260x series. >=20 > System shutdown may happen with interrupts being disabled and, as a > consequence, the kernel may hang if the driver does not support atomic > transfers. >=20 > This functionality is essentially implemented by polling the FIFO > Status register until either Command Execute Completed or NACK Error > bits are set. >=20 > Signed-off-by: Cristian Ciocaltea Applied to for-next, thanks! --m51xatjYGsM+13rf Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAl+hxC4ACgkQFA3kzBSg KbYrHw//euNdIAgM/h+leoIrHtmx4U1t4ASeeDaSMNetrFYOEGWcHtzjDZkYMMJj 3jEzBhFGNGWPMixjn9JTUg3nIhnEMZ7VUklIUaIBRr9Ig/6AU3ymAHk1mFLVVcQo ZWKC1yCGr6BS910ahG4ydLI9JM4cECwBcxy6uAm4scKX8mqW7AJY8aPxv1bsA71R 9JbDkSYP1PwhslH0NBcubgSwrF8zP93PRGp6nVItqw4l9/7yLYunTNlwR8yNt1F5 t7p3u9Yg/JVBOklJDWyKOVRSqyYgfqzDdutVhXnXtUhyJcu6qf7XyioT1/XmMlmH 3qSemDshe75Un0dAM5a6nyRHoG4CG/Je7j2SQb5XfXO1gyuaUo1TCZOAqqy/BDWw GLX91vvGu7Y6sJCyHAGyZ5FLB3KOLwMWOTDTauHqzVgSlWFsuPOufvBBBeaAE/HB IsjK3KPZ+oFi7nAD5zjPi6pHF2/jOl0G6P6AN7vA4w+3SAtz6e9JsWfFWKlFmGV6 BaOexMaHHQ5WlJEGFrwoEwW2+8nFxf1tRk7yRI2GeL7CHykdsyx8vx5MXDmJwwnC HZA0NShfFaKS9lQAZVNg7NmTdHaJ70xfHCvBWU7oCgqJskhUaWGQ/Bga8Fsn/V12 z8IAa4ixpYWCtjVitRlo8bLDMk5KUCEg0CG9bNk+QVpS8cbA0fw= =IJ2+ -----END PGP SIGNATURE----- --m51xatjYGsM+13rf--