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Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1ka3Mt-0000TM-Rv; Tue, 03 Nov 2020 20:57:27 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1ka3Mp-0000SS-4K; Tue, 03 Nov 2020 20:57:23 +0000 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 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 In-Reply-To: <1af37112fafd6cf069dfe864560f77996f57d80d.1602190168.git.cristian.ciocaltea@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201103_155723_277052_5C1F3F00 X-CRM114-Status: GOOD ( 13.40 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-actions@lists.infradead.org, linux-kernel@vger.kernel.org, Peter Rosin , linux-i2c@vger.kernel.org, Manivannan Sadhasivam , Andreas =?utf-8?Q?F=C3=A4rber?= , linux-arm-kernel@lists.infradead.org Content-Type: multipart/mixed; boundary="===============8947482964933798694==" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org --===============8947482964933798694== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="m51xatjYGsM+13rf" Content-Disposition: inline --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; 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