From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wolfram Sang Subject: [PATCH 0/2] i2c: prevent id collisions in the DT case Date: Thu, 12 Mar 2015 17:17:57 +0100 Message-ID: <1426177093-26820-1-git-send-email-wsa@the-dreams.de> Return-path: Sender: linux-i2c-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: Wolfram Sang , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, Bob Feretich , Jean Delvare , devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: devicetree@vger.kernel.org This series tries to fix the issue reported here[1]. In short: A DT entry wants a fixed id but its probe was deferred. When it was probed again, its id was taken by a dynamically assigned muxed bus. So, the probe failed. Let's start all dynamically assigned ids after the highest fixed one. We do this for legacy platform devices already. Please let me know what you think. If you can accept the new of-helper function, I'd like an ack so I can take the patches via my i2c tree. Thanks, Wolfram [1] http://thread.gmane.org/gmane.linux.drivers.i2c/22166 Wolfram Sang (2): of: base: add function to get highest id of an alias stem i2c: busses with dynamic ids should start after fixed ids for DT drivers/i2c/i2c-core.c | 8 ++++++++ drivers/of/base.c | 26 ++++++++++++++++++++++++++ include/linux/of.h | 6 ++++++ 3 files changed, 40 insertions(+) -- 2.1.4