From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757352Ab3BAT3c (ORCPT ); Fri, 1 Feb 2013 14:29:32 -0500 Received: from metis.ext.pengutronix.de ([92.198.50.35]:55684 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755768Ab3BAT33 (ORCPT ); Fri, 1 Feb 2013 14:29:29 -0500 Date: Fri, 1 Feb 2013 20:29:23 +0100 From: Wolfram Sang To: Naveen Krishna Chatradhi Cc: linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org, khali@linux-fr.org, ben-linux@fluff.org, grant.likely@secretlab.ca, devicetree-discuss@lists.ozlabs.org, sjg@chromium.org, grundler@chromium.org, naveenkrishna.ch@gmail.com, broonie@opensource.wolfsonmicro.com Subject: Re: [PATCH v4] i2c: exynos5: add High Speed I2C controller driver Message-ID: <20130201192923.GA23176@pengutronix.de> References: <1354021236-28596-2-git-send-email-ch.naveen@samsung.com> <1359734084-10594-1-git-send-email-ch.naveen@samsung.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="u3/rZRmxL6MmkK24" Content-Disposition: inline In-Reply-To: <1359734084-10594-1-git-send-email-ch.naveen@samsung.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-SA-Exim-Connect-IP: 2001:6f8:1178:2:21e:67ff:fe11:9c5c X-SA-Exim-Mail-From: wsa@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --u3/rZRmxL6MmkK24 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Feb 01, 2013 at 09:24:44PM +0530, Naveen Krishna Chatradhi wrote: > Adds support for High Speed I2C driver found in Exynos5 and later > SoCs from Samsung. This driver currently supports Auto mode. >=20 > Driver only supports Device Tree method. > Note: Added debugfs support for registers view, not tested. >=20 > Signed-off-by: Taekgyun Ko > Signed-off-by: Naveen Krishna Chatradhi > --- > Help please, >=20 > Usual reads and writes are happening. But, when i try doing > i2cdetect -y 0 0x10 0x59; It throws me continous interrupts at 0x1a > i2cdetect -y 0 0x50 0x64; It throws me continous interrupts at 0x63 >=20 > There are eeproms from 0x50 till 0x58 > wm8994 codec at 0x1a >=20 > Kindly, can anyone explain this behaviour. You select I2C_FUNC_SMBUS_EMUL, but make sure your hardware really supports I2C_FUNC_SMBUS_QUICK. That would be my first guess. Also, which eeprom do you have? Check its datasheet, some in deed use 8 addresses. Regards, Wolfram --=20 Pengutronix e.K. | Wolfram Sang | Industrial Linux Solutions | http://www.pengutronix.de/ | --u3/rZRmxL6MmkK24 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iEYEARECAAYFAlEMF5MACgkQD27XaX1/VRuM3QCbBcAfzGgPKWsLTrkhFvLpB53t S6IAn2f/VN+TgMX6H6KfBdwS2PNuXyRh =mwNd -----END PGP SIGNATURE----- --u3/rZRmxL6MmkK24--