From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757088Ab2ENQrt (ORCPT ); Mon, 14 May 2012 12:47:49 -0400 Received: from opensource.wolfsonmicro.com ([80.75.67.52]:33085 "EHLO opensource.wolfsonmicro.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756954Ab2ENQrr (ORCPT ); Mon, 14 May 2012 12:47:47 -0400 Date: Mon, 14 May 2012 17:47:46 +0100 From: Mark Brown To: Laxman Dewangan Cc: "linux-kernel@vger.kernel.org" Subject: Re: Regmap cached only when write happen to register Message-ID: <20120514164746.GD25668@opensource.wolfsonmicro.com> References: <4FB135BB.2020001@nvidia.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="TybLhxa8M7aNoW+V" Content-Disposition: inline In-Reply-To: <4FB135BB.2020001@nvidia.com> X-Cookie: Many pages make a thick book. User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --TybLhxa8M7aNoW+V Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Mon, May 14, 2012 at 10:11:31PM +0530, Laxman Dewangan wrote: > When debugging on register caching, found that register is getting > cached only when write happen to the register otherwise it will not > get cached even any number of read happen. > Is it by intended or there is opportunity to enhance it so that > during read also we can cache it.\? If you check -next you should find that the current code already caches any single register read. --TybLhxa8M7aNoW+V Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIcBAEBAgAGBQJPsTcrAAoJEBus8iNuMP3dhqwQAIKPCCtRkQhb+RvD3rxL2QAg EbEan8mrWKShr0OfMbm5fcPEPSYULRQp8bqILS9QTcCTm7cxGOvqzjq5gwazI5gY mdgJMtfFNy5K0jsfDohGPVrYJiMpbLcE5cVO9zcP2ibU8YBjxXPA3cXUfbszIbsa zcWTHMO3+xu3q+K+3XqKb6z55zce8WgWCPh8C9OM4StGJiO43k39G8/ObE5VKVxz t6RLG3LXp090NlMsNzaDej9CFwMCb2q/ky5LiZHh9ZJcnT3YgV4ZzI0uzkVBG1TI lEFrsln+VBGI3GFmjicfjEYUnJRsk3vzbnH0uLuMobUcVqd23x8kZPFf5CllJoXk fOlf2QQmY3QXG3JCxun7gdxiu8Vi6wxC5DhrcrryBMYto27pOpgc/jov/5fzo5Zy SpnQWP4eHcu+Z02NgykrkPR3DIX0oaE7Nm2IIKmE2oZ43AmNs74P44qJzNtnWvRC apuD/PpdVeY3+fgPg9XWeUwMJydLZDm8KZsdrFK+uStH/64wrRTx6HSeY+uCXMAq V9Kus7QKGtQE8LM6IptA//ZMU8zBYjVImzlL9/tP5eY/mJPVECvyiVLnmjqlSqET OSlOtM12irEeg+QoCtieyRwQdoFisXeqjspEuP4Sht6Ft9eQ4wroe6BoAQcLPAD3 G2438h2I6KgiyhALKqYS =harJ -----END PGP SIGNATURE----- --TybLhxa8M7aNoW+V--