Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755439AbbLAA5C (ORCPT ); Mon, 30 Nov 2015 19:57:02 -0500 Received: from sauhun.de ([89.238.76.85]:46572 "EHLO pokefinder.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753998AbbLAA5A (ORCPT ); Mon, 30 Nov 2015 19:57:00 -0500 Date: Tue, 1 Dec 2015 01:56:55 +0100 From: Wolfram Sang To: Liguo Zhang Cc: srv_heupstream@mediatek.com, Matthias Brugger , Eddie Huang , Xudong Chen , Sascha Hauer , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Subject: Re: [PATCH v2 1/2] i2c: mediatek: add i2c first write then read optimization Message-ID: <20151201005655.GC2064@katana> References: <1447047839-5223-1-git-send-email-liguo.zhang@mediatek.com> <1447047839-5223-2-git-send-email-liguo.zhang@mediatek.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="CblX+4bnyfN0pR09" Content-Disposition: inline In-Reply-To: <1447047839-5223-2-git-send-email-liguo.zhang@mediatek.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1869 Lines: 47 --CblX+4bnyfN0pR09 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Nov 09, 2015 at 01:43:58PM +0800, Liguo Zhang wrote: > For platform with auto restart support, between every transfer, > i2c controller will trigger an interrupt and SW need to handle > it to start new transfer. When doing write-then-read transfer, > instead of restart mechanism, using WRRD mode to have controller > send both transfer in one request to reduce latency. >=20 > Signed-off-by: Liguo Zhang > Reviewed-by: Eddie Huang Applied to for-next, thanks! --CblX+4bnyfN0pR09 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJWXPBXAAoJEBQN5MwUoCm25a8QALZk1BwzERtedyftupkAV0/M FD0KO86KL40cVjwPsht2Oi5B0wlKIHlEPidGeQaG1vnA+NHbsWQirWUeQxBiVR/T 4DqU3LnC3DhWiBgsNNAjhhr00GME1btUV7XaPwROSLv4VdXmzxnbZ5/U5dQiKkBr d6SOXDQfNeYvXExaA/iviupwGHOHJC4gmMWdBn/i196yw11VgXAFTAXGsMNtXQmI SxmeO4bZQoReEBetYQUfKyWBLxBVUn5+HNnQZUa0zjH+g0C9czwJMBidRBS+Eviy xeDWC7gV3cA7Hqyhb2MtyRjlYaGO7eDp/ijRKRtG3c/hwNyoPAn1VDL0zeywpoF6 ph+GNSMYp2v1tYPK9RjylQn1GDDjV5gjT5fmsgnXAosCjEFAPOriU1PlJr3nJkBR G32G2VOgZlcOJLo/KAjHB0/c9TMgXD0Io5vFHFIM+/uq7L9hmUuOopGtSk8pjWwh uDVbXXAXCjaowWHVmkXR2eBNdJ4UYqfOcTz5Z5+aonjqIbebzTLKSN8Yj4wRvxxG llJUjAgykP2/dR0qEKTYQMFSuf3Jjib7c3bi6GZBVq+vZWqXtGMPJvnv/NXxpRnT S6+0QqZM7yL8Ntfsqd4bERnkY2vr87nX5yQ872HRHRqcKcDToU82HKPM7BXRiwN0 b/34pjNtLhvSnG/on5ea =8q+r -----END PGP SIGNATURE----- --CblX+4bnyfN0pR09-- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/