From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Warren Subject: Re: [PATCH 3/4] i2c: added I2C_AQ_NO_CLK_STRETCH to i2c-bcm2835.c Date: Wed, 28 Oct 2015 22:10:53 -0600 Message-ID: <56319C4D.9020807@wwwdotorg.org> References: <1445976718-7449-1-git-send-email-nicola@corna.info> <1445976718-7449-3-git-send-email-nicola@corna.info> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Return-path: Received: from avon.wwwdotorg.org ([70.85.31.133]:59710 "EHLO avon.wwwdotorg.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750822AbbJ2EKz (ORCPT ); Thu, 29 Oct 2015 00:10:55 -0400 In-Reply-To: <1445976718-7449-3-git-send-email-nicola@corna.info> Sender: linux-i2c-owner@vger.kernel.org List-Id: linux-i2c@vger.kernel.org To: Nicola Corna , Eric Anholt Cc: Wolfram Sang , Lee Jones , Jonathan Cameron , linux-i2c@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Hartmut Knaack , Lars-Peter Clausen , Peter Meerwald , linux-iio@vger.kernel.org On 10/27/2015 02:11 PM, Nicola Corna wrote: > As reported here > http://www.advamation.com/knowhow/raspberrypi/rpi-i2c-bug.html > the BCM2835 has a bug in its i2c implementation which prevents a correct > clock stretching. I was going to ask for some more official confirmation of this bug (e.g. update to BCM2835_Peripherals.pdf), but it looks like it's already been confirmed; check Gert van Loo's responses at: https://www.raspberrypi.org/forums/viewtopic.php?p=146272 It might be useful to add this link into the patch description.